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Capital Weather Gang: August, 2011

Posted at 04:15 PM ET, 08/31/2011

PM Update: Superb weather sticks around

We’re closing out August just about where we’re supposed to with highs in the mid-80s and cooler overnight readings than we’ve seen for many months. Here comes fall! The meteorological version begins tomorrow. If you liked today’s weather, there’s more of it tomorrow and Friday as well. It’s a blissful pattern for just about everyone other than allergy suffers.

By Ian Livingston  |  04:15 PM ET, 08/31/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:23 PM ET, 08/31/2011

Did NOAA peg Hurricane Irene’s track four days out? How good was its forecast?

The National Oceanic and Atmospheric Administration (NOAA) has been promoting the fact it “nailed” hurricane Irene’s track four days out. On both of its home page and Environmental Visualization Laboratory website, it shows an animation demonstrating Irene followed the National Hurricane Center (NHC) track issued at 11 p.m. ET on Tuesday, August 23. It’s true that NHC correctly predicted Irene’s track at that point in time. But what about subsequent times? What about previous times? And what about its intensity?

By Jason Samenow  |  03:23 PM ET, 08/31/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather, Government

Posted at 01:15 PM ET, 08/31/2011

Dissecting the daily digit: History, seasonal averages, temperature trends, and other trivia

If you’re an avid reader of Capital Weather Gang’s morning forecasts, you have no doubt noticed that little box with the green number and a snippet of commentary, better known as the “Daily Digit.” We announce it on Facebook and Twitter the night beforehand. And depending on what kind of weather is your cup of tea on any given day, you may find our assigned digit to be too generous, too harsh, or sometimes just right. What is the daily digit, and how did it come about? For lack of a better definition, we define the digit as a somewhat subjective rating of the day’s weather, on a scale of 0 to 10. It debuted on December 16, 2009, just three days before D.C.’s biggest December snowfall on record. Since then it has become an integral part of our morning forecasts – so much so that many of you have asked questions about the history of this arbitrary number. Today we’ll look at some overall trends and other interesting trivia in the daily digit’s now 20-month history.

By Justin Grieser  |  01:15 PM ET, 08/31/2011 |  Permalink  |  Comments ( 0)
Categories:  Capital Weather Gang, Local Climate, Latest

Posted at 11:15 AM ET, 08/31/2011

Katia now a hurricane; Atlantic hurricane season still to peak

Tropical storm Katia, spinning away in the central Atlantic, is quickly closing in on hurricane intensity. And more ominously, the atmosphere across much of the rest of the tropics shows signs of becoming even more fertile.

By Greg Postel  |  11:15 AM ET, 08/31/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/31/2011

Forecast: A fantastic finish to August; more summery this weekend

It all seems too calm now, doesn’t it? Last week’s earthquake is becoming a more distant memory. Meanwhile, Irene is gone and the next potential tropical trouble is at least a week from threatening the U.S., if at all. Our ongoing streak of not-too-hot and storm-free days continues today and likely tomorrow too, before things become more summery heading into the holiday weekend.

By Dan Stillman  |  05:00 AM ET, 08/31/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:15 PM ET, 08/30/2011

PM Update: A marvelously mild midweek

No hurricanes. No extreme heat. Just warm, pleasant daytime sunshine (low-to-mid 80s) and clear, comfortable nights (50s and 60s). Let’s keep it going, shall we?

By Jason Samenow  |  04:15 PM ET, 08/30/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:10 PM ET, 08/30/2011

Hurriquake: Footprint of Hurricane Irene and earthquake onslaught in Washington, D.C. region

One week. The largest earthquake in the region in 100+ years. 19 after shocks. Up to a foot of rain. 40-70 mph wind gusts. These images tell the story.

By Jason Samenow  |  02:10 PM ET, 08/30/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Environment, Tropical Weather

Posted at 12:30 PM ET, 08/30/2011

Lessons from Hurricane Irene: why it wasn’t stronger and implications for science and society

Many of us watched tropical cyclone Irene’s approach with enough anxiety to last a lifetime. After all, a hurricane riding up the East Coast is maybe the nightmare scenario for forecasters, emergency managers, and residents alike. But Irene, thankfully, didn’t quite live up to some of its expectations. Now that we are a couple of days removed from its landfall, everything we learn from this experience need not be a retrospective analysis of how to deal with a potential disaster. It might prove equally rewarding to more closely examine how much of a disaster we were up against in the first place.

By Greg Postel  |  12:30 PM ET, 08/30/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 10:40 AM ET, 08/30/2011

Tropical storm Katia forms in eastern Atlantic, forecast to be Category 3 hurricane in 5 days

A little more than one day after the demise of Irene, forecasters have a new tropical storm to track. Early this morning, tropical storm Katia was born far out in the eastern Atlantic, about 535 miles west-southwest of the southernmost Cape Verde islands.

By Jason Samenow  |  10:40 AM ET, 08/30/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/30/2011

Forecast: Pleasant weather for end of August

A calm weather picture dominates the balance of week with lots of sunshine today and tomorrow along with a few more clouds by Thursday and Friday. Highs hold in the 80s with low humidity, so the misery index is low (unless you are a ragweed allergy sufferer!).

By Matt Rogers  |  05:00 AM ET, 08/30/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:00 PM ET, 08/29/2011

PM Update: Early-fall preview to persist for much of the near future

After this weekend’s weather tumult, today was a pretty big win for us. Highs that had some trouble even nearing 80 give us a sneak peak of what usually lies ahead during September. As one of the wettest Augusts in some time nears a close, there is not much to worry about unless you count the chance of a few sprinkles this evening as concerning!

By Ian Livingston  |  04:00 PM ET, 08/29/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:16 PM ET, 08/29/2011

Hurricane Irene hype: over the top media coverage or justified?

A Category 5 intensity debate is swirling around a category 1 storm: was Irene overhyped by media or were the media prudently sounding the alarm in the spirit of public safety?

By Jason Samenow  |  02:16 PM ET, 08/29/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Media, Media, Tropical Weather

Posted at 11:30 AM ET, 08/29/2011

Recap: Hurricane Irene’s rain and wind in Washington, D.C.

Around the Washington, D.C. metro region, Irene behaved largely as predicted (at least by the Capital Weather Gang), raking the I-95 corridor and points east with wind and rain, with steadily diminishing impacts as you headed west towards Loudoun and Frederick county.

By Jason Samenow  |  11:30 AM ET, 08/29/2011 |  Permalink  |  Comments ( 0)
Categories:  Local Climate, Latest, Recaps, Tropical Weather

Posted at 09:14 AM ET, 08/29/2011

The outer cloud bands of Hurricane Irene and Isabel

The weather setup for Friday’s photo shoot of Irene reminded me of my sunset shoot Isabel in 2003. Both storms were off the coast of North Carolina at the time of the shoots, spinning northwest toward our area. While the weather setup was similar, the cloud bands of the two storms could not have been more different. Isabel had long, well-defined bands of cirrus clouds while Irene had less-defined bands of cirrus, altocumulus, and cumulus clouds. Light, scattered showers accompanied Irene’s outer cloud bands while Isabel’s outer cloud bands were dry. The photo comparison below shows the difference in the outer cloud bands of Irene and Isabel, both photographed a day before the storms impacted our area.

By Kevin Ambrose  |  09:14 AM ET, 08/29/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Photography, Latest

Posted at 05:00 AM ET, 08/29/2011

Forecast: The serene following Irene - no storminess until probably Sunday

After a stormy Saturday, even after several nice hours Sunday afternoon, many could use the chance to catch their breath, clean-up, and not worry about the weather. The upcoming week gives us exactly that opportunity with a string of delightful days. Substantial rain chances don’t re-appear until Sunday.

By Jason Samenow  |  05:00 AM ET, 08/29/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:25 PM ET, 08/28/2011

Irene lashes areas from New York to New England, but could have been worse

Although Irene did not prove to be devastating to New York City, the storm packed a solid punch, with wind gusts of hurricane force recorded along the southern coast of Long Island. The storm tested New York’s emergency preparedness, and demonstrated its vulnerability to coastal flooding. However, Irene’s biggest legacy may prove to be damaging inland flooding, with record crests for many waterways predicted during the next 48 hours.

By Andrew Freedman  |  02:25 PM ET, 08/28/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest, Freedman

Posted at 07:15 AM ET, 08/28/2011

Forecast: Turning pleasant in Irene’s wake

As we wind down from Irene’s fury, the forecast is looking brighter. The final rainbands exit this morning and gusty winds trail off this afternoon as drier air works in. And it only gets better from there!

By Brian Jackson  |  07:15 AM ET, 08/28/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:30 AM ET, 08/28/2011

D.C. area dealing with worst of Irene; Eastern Shore still getting hammered

Irene has held its own since making landfall this morning, still holding on as a Category 1 hurricane with maximum sustained winds near 80 mph. For the D.C. area, the heaviest rain and strongest winds are yet to come over the next 6-8 hours or so before things start to wind down toward dawn.

By Dan Stillman and Jason Samenow  |  02:30 AM ET, 08/28/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest, Forecasts

Posted at 06:55 PM ET, 08/27/2011

Rain and wind increasing across D.C. area; worst tonight

As we’ve mentioned before, this is not a panic situation as far as the immediate metro area is concerned. However, now is the time to get to where you plan to be for the night, as rain and wind continue to increase from southeast to northwest.

By Dan Stillman  |  06:55 PM ET, 08/27/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 12:15 PM ET, 08/27/2011

Hurricane Irene over North Carolina; D.C. area conditions headed downhill

Hurricane Irene is moving north/northeast through North Carolina on its way to a closer run in with the area. Winds are sustained at 85 mph, and it is expected to remain a hurricane while passing by near the shoreline. Rain that has been creeping northwest through the day will continue to do so as winds pick up. If you must go out, plan on doing it before dark.

By Ian Livingston  |  12:15 PM ET, 08/27/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/27/2011

Forecast: Rain and wind inbound as Hurricane Irene impacts the East Coast

Ready for Irene? It’s on the way. A chance of morning showers becomes a growing threat of heavy rain squalls and building winds. The worst of it may hold off until evening and then into the overnight when rain continues and is accompanied by sustained winds up to 40 mph or higher. Any last minute preparations should be completed early in the day.

By Ian Livingston and Dan Stillman  |  05:00 AM ET, 08/27/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts, Tropical Weather

Posted at 08:05 PM ET, 08/26/2011

The latest on Irene and its uncertain forecasts

Category 2 Hurricane Irene continues making progress to the north/northeast at 14 mph. Maximum sustained winds remain around 100 mph and very little has changed with the storm since earlier today - it hasn’t strengthened, but it’s a very large storm with tropical storm-force winds out to 90 miles from its center. Now, let’s address why the uncertainty in Irene forecasts over the past few days?

By Steve Tracton and Dan Stillman  |  08:05 PM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather, Tracton

Posted at 06:00 PM ET, 08/26/2011

PM Update: Basking in the final hours of pre-Irene calm; conditions deteriorate Saturday

It’s a pretty standard summertime afternoon and that continues into the evening, replete with a risk of a shower or storm. Highs that reached the mid-80s to near 90 won’t go too far tonight, thanks heavily to increasing clouds and moisture in the air as Irene heads north. By tomorrow morning more numerous showers are possible from Irene, but the heaviest and windiest part should hold off till at least midday or afternoon.

By Ian Livingston  |  06:00 PM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 05:08 PM ET, 08/26/2011

Hurricane Irene: Are you prepared?

Here are tips on preparing for what is shaping up to be a damaging storm.

By Washington Post editors  |  05:08 PM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 02:37 PM ET, 08/26/2011

For Northeast, Hurricane Irene poses a rare and very real threat

Millions of people from Philadelphia northward to Maine are bracing for what may be their closest encounter with a hurricane since at least 1991.

By Andrew Freedman  |  02:37 PM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 11:37 AM ET, 08/26/2011

Irene closing in on the Outer Banks

Irene remains a category 2 storm, though maximum sustained winds are down a bit, and the National Hurricane Center expects little change before N.C. landfall.

By Greg Postel  |  11:37 AM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 08:25 AM ET, 08/26/2011

Hurricane Irene: Frequently asked questions

Hurricane Irene is headed up the East Coast - a category 2 storm at 8 a.m. with winds near 110 mph, but capable of strengthening back into category 3 territory - and could spread tropical storm conditions across the D.C. metro area Saturday afternoon into evening. The story is even more troubling for the Eastern Shore, including the Va/Md/De beaches, where destructive winds, flooding rain, widespread power outages and a life-threatening storm surge are possible.

By Jason Samenow  |  08:25 AM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/26/2011

Forecast: A warm and summery calm before Irene; tropical storm warning issued

The frontal boundary that caused some storms yesterday fizzles out overhead leaving us with highs in the mid-and-upper 80s and more sun than we saw Thursday. Irene still looms large as well heading into the weekend. Some questions to its story are coming together, but there’s still a good deal of uncertainty as to what local impacts will be. A tropical storm warning has been issued for the immediate metro area.

By A. Camden Walker  |  05:00 AM ET, 08/26/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 11:12 PM ET, 08/25/2011

Massive Hurricane Irene resumes intensification

After its intensity held steady for about a day, Irene is deepening as it pulls away from the northwest Bahamas, on a collision course with the North Carolina Outer Banks. Although its maximum sustained winds of 115 have not (yet) increased, its central pressure has dropped (to 942 mb). Typically, a drop in pressure is followed by an increase in wind speed.

By Jason Samenow  |  11:12 PM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 05:09 PM ET, 08/25/2011

Tropical storm and hurricane watches issued for D.C. metro region, tidal Potomac, Chesapeake Bay, and Atlantic beaches

The National Hurricane Center has issued a tropical storm watch for the Chesapeake Bay from Smith Point northward and the Tidal Potomac, including Washington, D.C. The National Weather Service in Sterling has extended the tropical storm watch to cover much of the immediate D.C. metro region but it does not include the far western suburbs of Frederick, Loudoun and Fauquier counties.Further east, southeast and northeast, a hurricane watch has been issued from the Virginia/North Carolina border northward to Sandy Hook New Jersey, including Delaware Bay, and the Chesapeake Bay south of Smith point.

By Jason Samenow  |  05:09 PM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 04:45 PM ET, 08/25/2011

PM Update: Thunderstorm risk diminishes; calm Friday before Irene

The thunderstorm risk in effect for the region has diminished. Those showers helped keep highs down – near 80 to the low 80s across the area. We clear outtonight and tomorrow should be partly cloudy, muggy and warm as Irene begins to near the Southeast Coast.

By Ian Lvingston  |  04:45 PM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:17 PM ET, 08/25/2011

Hurricane Irene to sock beaches, sweep D.C. metro region

It has become clear that areas from the tidewater of Virginia northeast across the Chesapeake Bay to the Delmarva coast will experience a very serious hurricane in Irene. Ocean City is being evacuated in anticipation. As you go west of the Bay, the impacts from Irene are likely to lessen. Determining exactly where the cutoff occurs is a difficult issue. And, as we’ve been stressing, changes in the storm track can have important changes - shifting major impacts east or west.

By Jason Samenow  |  03:17 PM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 12:30 PM ET, 08/25/2011

Washington’s worst five hurricanes and tropical storms

While the remnants of tropical systems impact the Washington area frequently, almost every year, it’s fairly uncommon to have a major tropical storm or hurricane directly impact our local region. With that said, the Washington area has experienced a number of damaging hurricanes and tropical storms over the past century. Below is a list of what I consider to be the Washington, D.C. area’s top five most damaging and impactful tropical systems.

By Kevin Ambrose  |  12:30 PM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather, History

Posted at 11:16 AM ET, 08/25/2011

Hurricane Irene: Tracks shifts west, potentially “extremely destructive” for East Coast

Hurricane Irene, 645 miles south of Cape Hatteras, is less than two days away from initiating a devastating blow to a large section of the East Coast. While its intensity has held steady since last night, the risk to much of the eastern seaboard has grown larger as computer models have nudged its track westward, closer to the coast, if not slightly inland. Not only are severe impacts likely for coastal regions from the Outer Banks of North Carolina to New England, but interior sections of the mid-Atlantic, including the Richmond, Washington, D.C., Baltimore, and Philadelphia may also experience major effects from Irene

By Jason Samenow  |  11:16 AM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 05:00 AM ET, 08/25/2011

Forecast: Heavy t’storms likely in afternoon, Irene looms for Saturday/Sunday

Don’t lose sight of today’s weather looking off toward Irene and the weekend. There is a good chance of storms and some could be pretty strong. The weekend starts out nice, albeit humid, but is likely to go downhill in a hurry Saturday night if Irene gets as close as the most recent models suggest. She is no gentle lady

By David Streit  |  05:00 AM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/25/2011

NatCast: Thundery but playable

Hopefully the thundershowers will move through before game time and just slow up the start. Be sure to bring a towel to dry off your seat.

By David Streit  |  04:55 AM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 01:36 AM ET, 08/25/2011

DC aftershock: 4.5 magnitude quake rattles region

Yes - if you awoke to your bed shaking, you felt a legitimate aftershock from Tuesday’s 5.8 magnitude earthquake. The U.S. Geological Survey reports a 4.5 magnitude quake occurred 9 miles south of Mineral, Va. at 1:08 a.m. this morning (Thursday).

By Jason Samenow  |  01:36 AM ET, 08/25/2011 |  Permalink  |  Comments ( 0)
Categories:  Environment, Latest

Posted at 07:05 PM ET, 08/24/2011

Hurricane Irene: “Extreme” risk to coastal mid-Atlantic, southern New England

Hitting the southeast Bahamas “hard”, major hurricane Irene is growing in size and strength. A category 3 storm with peak sustained winds of 120 mph, its radius of hurricane force winds have expanded outwards to 60 miles from the center (from 40 miles earlier today). The National Hurricane Center writes the satellite presentation of Irene has “continued to improve” and its pressure has dropped. Intensification to the dangerous category four level is still expected in the next day or two. Importantly, two global forecast models, the European and the NOAA’s “GFS”, have shifted the track slightly westward this afternoon increasing the risk of severe impacts to the coast of the mid-Atlantic and New England. The National Hurricane Center has adjusted its official track slightly westward bringing Irene’s center just east of the North Carolina Outer Banks then almost due northward (paralleling the Delmarva coast) over the east end of Long Island, before crashing it into Rhode Island.

By Jason Samenow  |  07:05 PM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 04:00 PM ET, 08/24/2011

PM Update: Still delightful, but maybe stormy tomorrow

Another pretty pleasant late-summer day is winding down as some summertime moisture returns to the area on a south wind. That helps set the stage for scattered showers and storms during the day on Thursday. But, before then there’s not too much to worry about!

By Ian Livingston  |  04:00 PM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:06 PM ET, 08/24/2011

Hurricane Irene: what might it mean for Washington, D.C. and nearby beaches?

A couple of possible scenarios both involve rain, wind and flooding; the questions are, how much of each and where?

By Jason Samenow  |  03:06 PM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 01:07 PM ET, 08/24/2011

A day to remember: August 28, 1963 - what was weather like for MLK dream speech?

August 28, 1963, 48 years ago this Sunday, will long be remembered as a watershed day in American history, when up to 250,000 people participated in the March on Washington for Jobs and Freedom. It was then that Dr. Martin Luther King delivered his famous “I have a dream” speech on the steps of the Lincoln Memorial. Most people present in Washington, D.C. on that epic day believe they can remember what the weather was like. Or can they? This is where the picture becomes a little murky.

By Don Lipman  |  01:07 PM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, History, Lipman

Posted at 11:29 AM ET, 08/24/2011

Hurricane Irene, major category 3 storm, closing in on East Coast

Swirling through the Bahamas, Hurricane Irene has intensified this morning, reaching major category 3 status, with peak sustained winds of 115 mph. Hurricane warnings continue for all of the Bahamas where 6-12 inches of rain are expected in addition to punishing, hurricane force winds. A potentially devastating storm surge of 7-11 feet is possible in areas with onshore winds near the center of Irene. Irene is headed northwest towards the East Coast, but the latest guidance has continued to trend eastward, more offshore, and a direct strike on North Carolina’s shore, while possible, is not a sure thing. Similarly, a direct hit is still plausible for southern New England, but not a certainty. Irrespective of whether the storm makes a direct hit at particular coastal locations from North Carolina to New England, significant impacts are quite possible including torrential rain, coastal flooding and damaging winds.

By Greg Postel  |  11:29 AM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 10:20 AM ET, 08/24/2011

Virginia earthquake: News and resources

This is a guide to earthquake coverage from the Post. More than 122,000 people in 8,269 zip codes and 159 cities responded to the United States Geological Survey (USGS) through its Web site saying they had felt the quake. The USGS received quake reports from Georgia to southern Canada and as far west as Chicago. There have been a total of four aftershocks, since the initial earthquake

By Jason Samenow  |  10:20 AM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Environment

Posted at 05:00 AM ET, 08/24/2011

Forecast: Another fine day in D.C. area as Irene’s forecast fluctuates

While the forecast track for Hurricane Irene continues to fluctuate, here in Washington and vicinity we have ourselves a third straight day of pleasant weather. Tomorrow brings storm chances back to the area by afternoon or evening. And then the focus turns to the weekend, which could feature anything from flooding rain and high winds, to some sun and gentler breezes - all depending on the track of Irene.

By Dan Stillman  |  05:00 AM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/24/2011

NatCast: August baseball could be so much worse

You’ll probably notice the humidity starting to increase. But with comfortable temperatures it won’t be much of a factor, and a far cry from the Dog Days weather August is capable of.

By Dan Stillman  |  04:55 AM ET, 08/24/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 08:27 PM ET, 08/23/2011

Hurricane Irene: Good chance to be billion dollar weather disaster

Extreme weather events in 2011 in the U.S. have already matched 2008’s record for most billion dollar weather disasters. If history is any indication, Hurricane Irene will become 2011’s 10th such disaster, putting 2011 in first place by itself, with four months still remaining in the calendar year.

By Jason Samenow  |  08:27 PM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 06:30 PM ET, 08/23/2011

PM Update: Shaky sunshine hopefully to stabilize; humidity increases

Today’s beautiful weather was violently overshadowed by the powerful and historic 5.8-magnitude earthquake in central Virginia. We need calm now, and, barring any aftershocks (please, no) we’ll get calm with a very pleasant evening ahead. Wednesday, at least on the weather front, is tranquil, with warm sunshine coupled with increasing humidity.

By Jason Samenow  |  06:30 PM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:27 PM ET, 08/23/2011

5.8 magnitude earthquake rocks East Coast: Updates from the ground

Updates from Washington Post reporters and Twitter

By Katie Rogers  |  02:27 PM ET, 08/23/2011 |  Permalink  |  Comments ( 0)

Posted at 01:59 PM ET, 08/23/2011

D.C. earthquake: Powerful tremor shakes region

U.S. Geological Survey has confirmed an earthquake struck central Virginia at 1:51 p.m.

By Jason Samenow  |  01:59 PM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Environment

Posted at 01:05 PM ET, 08/23/2011

Hurricane Irene imagery: International Space Station view, NOAA movie, emerging eye

Astronaut Ron Garan, aboard the International Space Station, photographed an image of Hurricane Irene Monday evening. Irene was at Category 1 storm at the time with maximum sustained winds of 80 mph. Image shown in this post.

By Jason Samenow  |  01:05 PM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 11:15 AM ET, 08/23/2011

Hurricane Irene may hug East Coast rather than track inland

Since yesterday, Hurricane Irene has grown to a Category 2 hurricane, and presently contains maximum sustained winds of 100 mph. Situated about 70 miles south of Grand Turk Island, hurricane warnings are in effect for all of the Bahamas and the Turks and Caicos islands. Marching west-northwestward at 12 mph, the storm is very likely to intensify into a major hurricane (category 3 or higher) and head towards the U.S. East Coast, but the exact track and specific impacts remain fuzzy. The latest guidance suggests the storm could remain over the ocean, battering the coast, rather than coming inland.

By Greg Postel and Jason Samenow  |  11:15 AM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/23/2011

Forecast: Outstanding weather before humidity builds, weekend hurricane risk

Beautiful weather continues today as the humidity stays super-low and temperatures continue to be relatively cool for August with only low 80s again. Humidity starts to tick up tomorrow with a bit more heat and storm chances on Thursday and Friday. Then we must pay extremely close attention to Hurricane Irene, which could impact the region over the weekend. So, enjoy today!

By Matt Rogers  |  05:00 AM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/23/2011

NatCast: Excellent baseball weather

Very comfortable conditions this evening with temperatures cooling into the 70s, light breezes, and low, low humidity.

By Matt Rogers  |  04:55 AM ET, 08/23/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 07:00 PM ET, 08/22/2011

Weather dream: I heard from my new weather prof!!!

Well the results of my last, first pre-class tuschy-kissing correspondence are in, and they’re not all bad. I got my summer reading (score), was told that my lack of on-camera experience is gonna be a problem (womp), but was then put onto a prof who could be my on-camera coach and has a similar last name to…the Caps high-scoring Russian winger

By Scott Zakheim  |  07:00 PM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  Weather Dream, Humor, Media, Latest

Posted at 03:45 PM ET, 08/22/2011

PM Update: Late August awesomeness

Some of the summer’s very best weather is here. The sun is warm, the air is dry, and the breeze sublime. And tonight you can have save some dough by turning off the A/C. On Tuesday, we get another standout day, with more sensational sunshine and low humidity.

By Jason Samenow  |  03:45 PM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:00 PM ET, 08/22/2011

Will Hurricane Irene generate a Washington, D.C. deluge?

Computer models continue to advertise the strong possibility that Hurricane Irene will have significant impacts along the East Coast. But what does that mean for us locally here in Washington, D.C.?

By Jason Samenow  |  02:00 PM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 11:10 AM ET, 08/22/2011

Hurricane Irene a serious threat to U.S. East Coast

Hurricane Irene continues to intensify as it moves west-northwestward at 13 mph. Currently located 105 miles west-northwest of San Juan, Puerto Rico, hurricane warnings are in effect for the southeast Bahamas, Turks and Caicos islands, and north coast of the Dominican Republic. A hurricane watch is posted for the north coast of Haiti and the central Bahamas. Current model track guidance is nearly unanimous in steering Irene towards the southeast U.S. coast by Friday, with landfall occurring somewhere between central South Carolina and southern North Carolina.

By Greg Postel and Jason Samenow  |  11:10 AM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/22/2011

Forecast: Terrific before late week risk of tropical trouble

The weeks gets off to an absolutely fantastic start with some of the nicest days of the summer. Monday through Wednesday are splendid with relatively low humidity, lots of sun, and temperatures safely shy of 90. A front on Thursday may squeeze out a thundershower. By then, most of us will focus on Irene, likely to be closing in on Southeast coast and possibly poised to take a swipe at the mid-Atlantic over the weekend

By Jason Samenow  |  05:00 AM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/22/2011

NatCast: Payback - a picture perfect evening

Nats fans deserve a break after two rain delays in the last three games. No chance of rain delay tonight, just pleasant temps falling through the mid-70s.

By Jason Samenow  |  04:55 AM ET, 08/22/2011 |  Permalink  |  Comments ( 0)
Categories:  NatCast, Latest

Posted at 01:07 PM ET, 08/21/2011

Evening storm chances down but not out

Radar across the area and to the immediate west has cleared out nicely behind the earlier storms. The Severe T’storm Watch and Flash Flood Watch have both been cancelled, and rain chances appear low over the next couple hours. A few storms are still possible later in the evening, but are far from a sure bet.

By Jason Samenow  |  01:07 PM ET, 08/21/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Thunderstorms

Posted at 05:00 AM ET, 08/21/2011

Forecast: Storms threaten to rumble through, then really nice

After a splendid day yesterday, rain chances are back in the forecast to close out the weekend. And with those chances comes the possibility of some pretty rough weather. Once we get through today’s storm threat, we’re rewarded nicely with fantastic weather tomorrow into midweek.

By Brian Jackson  |  05:00 AM ET, 08/21/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/21/2011

NatCast: Storms threaten the later innings

It’s a muggy day at the park with the potential for strong storms in the area. But they should hold off long enough to get a few innings in if not more.

By Brian Jackson  |  04:55 AM ET, 08/21/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 05:00 AM ET, 08/20/2011

Forecast: A peaceful start to the weekend, but Sunday could be stormier

Compared to the last two days, this one might seem like a vacation. Storm worries should be few, but heat makes itself known again as we likely add on another 90+ days to the list. Showers and storms may again be numerous for tomorrow, though with any luck they’ll usher in nicer weather for the start of the work week.

By Ian Livingston  |  05:00 AM ET, 08/20/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/20/2011

NatCast: Much drier than last night

Better than what was faced last night with torrential downpours as the game got underway! We dan’t totally rule out a pop-up shower or storm, but they should be widely isolated, way less intense and dwindling by game time.

By Ian Livingston  |  04:55 AM ET, 08/20/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 04:15 PM ET, 08/19/2011

PM Update: Scattered storms this evening; drier Saturday

Today was pretty typical for mid-to-late August. Highs reached the mid-to-upper 80s with moderately high humidity. Whereas thunderstorms overachieved yesterday in their coverage and intensity, early returns suggest they’ll underachieve today. As for the weekend, Saturday looks dry and warm for the most part whereas thunderstorm chances increase Sunday.

By Jason Samenow  |  04:15 PM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:05 PM ET, 08/19/2011

Tropical storm Harvey forms; watchful eyes on trailing disturbance

Tropical depression eight has officially reached tropical storm status, earning the name Harvey this afternoon. Located 285 miles east southeast of Belize City in the western Caribbean, the storm has prompted tropical storm warnings for the Bay Islands of Honduras and the coast of Belize. While Harvey may produce dangerous flash flooding and mudslides in Central America, interests in the United States are more focused on the trailing disturbance in the central Atlantic, known as 97L.

By Jason Samenow  |  03:05 PM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 01:00 PM ET, 08/19/2011

Stage collapses at Belgium concert, five dead; festival canceled

Less than a week after thunderstorm winds toppled a stage at a fair in Indiana, killing five and injuring 40, a similar set of circumstances occurred across the Atlantic. At the Pukkelpop music festival in Belgium yesterday, a fierce storm took down a stage, claiming five lives and injuring 140. As a result of the incident, the festival attended by 60,000 people and headlining Eminem, Foo Fighers, and The Offspring has been canceled says Post’s Pop Music blog Click Track.

By Jason Samenow  |  01:00 PM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  International Weather, Latest

Posted at 10:50 AM ET, 08/19/2011

Torrential rain and hail pound D.C.’s northern suburbs Thursday; rainbows and lightning dazzle

Multiple thunderstorms - sometimes tracking over the same areas - produced hail as large as golf balls, frequent lightning, and tropical downpours in large portions of D.C.’s northern suburbs Thursday afternoon and evening. Before the sun set, light intersecting the intense rain shafts produced vibrant rainbows in many locations.

By Jason Samenow  |  10:50 AM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  Thunderstorms, Latest

Posted at 05:00 AM ET, 08/19/2011

Forecast: Muggy with more shower and thunder chances, but clearing for Saturday

Another day of warmth with shower and storm threats is ahead. I guess it's still summer, so we should expect that! Highs rising as far as near 90 help trigger those storms, some of which may contain very heavy rain yet again. Heading into the weekend, it looks like we stick with these temperatures as well as an off and on risk of rain.

By A. Camden Walker  |  05:00 AM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/19/2011

NatCast: Might have to dodge some rain

Even if it doesn’t rain much, skies likely stay overcast. Dress or gear-up for muggy conditions and a chance you could get wet though. If it rains, temperatures fall into the 70s.

By A. Camden Walker  |  04:55 AM ET, 08/19/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 03:45 PM ET, 08/18/2011

PM Update: Heavy thunderstorms in parts of region; more possible Friday

A muggy, sometimes smoky day (with highs near 90) has transitioned into one with increasing coverage of showers and thunderstorms. Some of these storms are producing flooding rain, strong winds, and hail. Those gradually wind down after dark. After a mild overnight, we see a similar sequence of weather events during the day Friday.

By Jason Samenow  |  03:45 PM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:00 PM ET, 08/18/2011

Google Maps adds a weather layer

Effective today, when you look-up a location on Google Maps, you can also access weather information.

By Jason Samenow  |  02:00 PM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Technology, Latest

Posted at 12:15 PM ET, 08/18/2011

Breathtaking photos/video of waterspout at Carolina Beach, NC (from this morning)

A waterspout formed off the coast of Carolina Beach in southern North Carolina this morning. As it came ashore, residents and beachgoers captured some amazing photos shown in this post.

By Jason Samenow  |  12:15 PM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Photography, Latest, U.S. Weather

Posted at 10:50 AM ET, 08/18/2011

An alternative to The Weather Channel: Weather Nation TV, interview with CEO Paul Douglas

Many long-time viewers of the The Weather Channel have lamented a transition from exclusive live weather programming to more taped programs and documentaries, sometimes referred to as “weathertainment.” And some have called for an alternative - a channel where you can get live current weather reporting all the time. Enter Paul Douglas, Founder and CEO of Broadcast Weather. Douglas has a launched a new national weather network called Weather Nation TV. Paul graciously responded to questions about this network over email.

By Jason Samenow  |  10:50 AM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Media, Latest

Posted at 05:00 AM ET, 08/18/2011

Forecast: A little heat, humidity and a p.m. t’shower - summer in fine style

The doldrums of summer are upon us. By this I mean a sort of stagnant pattern with a good deal of heat and humidity and a few pop up thundershowers every afternoon/evening. For my money, the best days not to forget the umbrella would be Friday and Sunday but I am not convinced that a majority of the area will see rains on any given day.

By David Streit  |  05:00 AM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/18/2011

NatCast: Fine summer weather for a game - outside t’shower chance

The chance of a thundershower delay is slim but if you are a worrier, bring an umbrella just in case. Temperatures and humidity are not bad for a summer evening.

By David Streit  |  04:55 AM ET, 08/18/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 07:00 PM ET, 08/17/2011

Weather Dream: Counting down the days to Meteorology 101

Having obtained full forgiveness from his instructors after his first weather education fiasco, Scott Zakheim takes his next step in pursuit of TV weather stardom.

By Scott Zakheim  |  07:00 PM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Media, Weather Dream, Latest, Humor

Posted at 04:30 PM ET, 08/17/2011

PM Update: Mostly tranquil through tonight, before rain chances rise on Thursday

Highs in the upper 80s to around 90 are a good reminder summer is still in control. But, it could be worse! Tonight’s looking mighty fine on the whole. However, by tomorrow a cold front brings a chance of showers and storms to the area. Highs should again reach well into the 80s to near 90.

By Ian Livingston  |  04:30 PM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:30 PM ET, 08/17/2011

New heat records fall in toasted Texas towns of Houston, Dallas, Wichita Falls

Seldom a day goes by without a new heat milestone being reached in the Lonestar state. In the last several days, various significant heat records have been set in Houston, Wichita Falls, and Dallas.

By Jason Samenow  |  03:30 PM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, U.S. Weather

Posted at 01:45 PM ET, 08/17/2011

Traps for fighting the inevitable stink bug invasion

The first wave of stink bugs arrived at my house last week. It was a small wave, I saw about two dozen stink bugs crawling up the siding of my house to the soffits, no doubt searching for an area to hibernate this winter. To combat the stink bugs this year, I plan to use battery-powered light traps to the catch the bugs.

By Kevin Ambrose  |  01:45 PM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Nature, Latest

Posted at 12:30 PM ET, 08/17/2011

With extreme weather off the charts, National Weather Service launches Weather-ready initiative

You’ve heard the saying a million times (and I almost cringe to repeat it): “everybody loves talking about the weather but nobody does anything about it.” The National Weather Service announced today, however, that it’s serious about preparing our nation for extreme weather. Its new “Weather-ready” nation intiative promises to “to make America safer by saving more lives and protecting livelihoods as communities across the country become increasingly vulnerable to severe weather events, such as tornado outbreaks, intense heat waves, flooding, active hurricane seasons, and solar storms that threaten electrical and communication systems.”

By Jason Samenow  |  12:30 PM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Government, U.S. Weather

Posted at 10:45 AM ET, 08/17/2011

Hurricane hype and false alarms

As you may have heard, some of the global weather models are insisting on tropical storm and hurricane development in the Atlantic Basin at some point during the next week. Some bloggers are posting forecasts 240 to 360 hours into the future and anticipating the possibility of a hurricane along at the East Coast at the end of next week. There’s a chance that may happen but model forecasts in that range are little more than fantasy.

By Greg Postel  |  10:45 AM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/17/2011

Forecast: Wonderful Wednesday before rain chances return

We’ve had rain or at least a decent chance of rain each of the past four days. That’s been good news for our drought, but has of coursed added an element of uncertainty to outdoor plans. We get a break from rain chances today, but they come right back tomorrow and Friday.

By Dan Stillman  |  05:00 AM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/17/2011

NatCast: Comfortably warm

Humidity may creep up a bit during the game, but otherwise it’s a nice night for baseball with just a slight chance of a shower if the game runs late.

By Dan Stillman  |  04:55 AM ET, 08/17/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 01:45 PM ET, 08/16/2011

Weather dream: Apology letter to professors and responses

Here’s the latest in Scott’s reality blog series documenting his quest to be a famous weatherman. In his last post, Scott colorfully described his first foray into weather education which did not end well. In this latest post, Scott apologies to his professors and receives their responses. Was he forgiven?

By Scott Zakheim  |  01:45 PM ET, 08/16/2011 |  Permalink  |  Comments ( 0)
Categories:  Weather Dream, Media, Humor, Latest

Posted at 11:30 AM ET, 08/16/2011

Climate scientist cautions against reading too much into this summer’s extreme heat

The heat this summer has been relentless in many parts of the country, particularly in the South Central states, where Oklahoma and Texas had their warmest months on record in July. In fact, as previously noted on this blog, Oklahoma’s statewide average temperature was the warmest monthly statewide average temperature ever recorded in the United States during any month. To learn more about how the extreme heat this summer may shed light on what we can expect as the world warms due to climate change, I turned to Noah Diffenbaugh, a researcher at Stanford’s Woods Institute for the Environment.

By Andrew Freedman  |  11:30 AM ET, 08/16/2011 |  Permalink  |  Comments ( 0)
Categories:  Extreme Heat, Freedman, Climate Change, U.S. Weather, Latest

Posted at 10:15 AM ET, 08/16/2011

Rare snowstorm, cold blast hit New Zealand

An unusual outbreak of cold and snow has gripped many parts of New Zealand after a strong Antarctic front pushed northwards into normally mild parts of the country. The wintry blast is being described as a once-in-a-lifetime event, bringing snow to the capital city of Wellington and as far north as Auckland for the first time since the 1970s.

By Justin Grieser  |  10:15 AM ET, 08/16/2011 |  Permalink  |  Comments ( 0)
Categories:  International Weather, Latest

Posted at 05:00 AM ET, 08/16/2011

Forecast: Partial sunshine, 80s, slight chance of storms

Improving weather today and tomorrow with diminishing shower/storm chances, more peeks of sunshine, and generally more suitable summer temperatures in the 80s. Tomorrow should be our best day of the week with mostly sunny skies, 80s, and relatively low humidity.

By Matt Rogers  |  05:00 AM ET, 08/16/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/16/2011

NatCast: Pleasant, outside chance of thundershower

A 20% chance of storms this evening offers some risk to the game, but the main threat should be north and east of the city. Any inclement weather should be short-lived too. Temperatures drop through the 80s toward the 70s during the course of the game.

By Matt Rogers  |  04:55 AM ET, 08/16/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 05:35 PM ET, 08/15/2011

Shooting star from space: U.S. astronaut on International Space Station captures amazing image

This may well be a first: NASA astronaut Ron Garan photographed a shooting star blazing through Earth’s atmosphere from the International Space Station. He captured the image on Friday - around the time the Perseid meteor shower was peaking, and also, coincidentally, not long before we could see the International Space Station making a pass over our skies. Garan posted the picture on Twitter for the world to see. Cool stuff.

By Jason Samenow  |  05:35 PM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Astronomy, Space

Posted at 03:45 PM ET, 08/15/2011

PM Update: Shower and storm chances remain, but risk dwindles tomorrow

Today ended up “not so bad” as most of the rain activity has surrounded or skirted the area. However, we’re still in a pattern that supports pop up rain and storms, some of which could be heavy. Once the sun sets that risk should mostly disappear into the overnight and although there’s a chance of an isolated shower or storm tomorrow, most of the day should be dry.

By Ian Livingston  |  03:45 PM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 01:50 PM ET, 08/15/2011

Sunday rain in New York City breaks records

New York’s JFK airport received 7.8” of rain Sunday, its soggiest day since records began in 1948. Its single-day rainfall output was about twice its average monthly total.

By Jason Samenow  |  01:50 PM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, U.S. Weather

Posted at 12:00 PM ET, 08/15/2011

Indiana stage collapse: was it preventable?

A severe, but not uncommon, line of thunderstorms swept into Indianapolis Saturday evening, toppling a large stage at the Indiana State Fair, killing five and injuring dozens. Watching the video footage is horrifying. The tragedy raises all sorts of questions: Was there adequate notice? Was the notice received and acted upon? Was the incident preventable

By Jason Samenow  |  12:00 PM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  U.S. Weather, Latest

Posted at 09:20 AM ET, 08/15/2011

Late arriving Sunday rains produce wide range of totals through D.C. metro region

When the heavy rain finally arrived Sunday evening, it fell fast and furious. But, in some spots, it was pretty much a no show. Amounts were highly variable ranging from as little as 0.1” west and southwest of the District to almost 3” in portions of Montgomery and northeast Prince George’s county. The locations with the highest totals were subject to some extreme rainfall rates as well as an onslaught of lightning.

By Jason Samenow  |  09:20 AM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  Floods, Local Climate, Latest

Posted at 05:00 AM ET, 08/15/2011

Forecast: Unsettled week, plenty of rain chances

Even though Sunday delivered less rain than forecast in some locations, the upcoming week presents several opportunities to make up for it, starting with today. In fact, the only day “in the clear” so to speak may be Wednesday. Otherwise, varying rain chances, seasonable temperatures and high humidity characterize the week ahead.

By Jason Samenow  |  05:00 AM ET, 08/15/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 06:50 PM ET, 08/14/2011

Flash flooding possible, especially northern suburbs

Much of the area receives a good dose of the wet stuff for the second straight day today. While the weekend timing isn’t ideal, our parched ground is eager to accept the rain whenever it can get it. Even though the area is in what’s considered a moderate drought, some localized flooding is possible today where heavy downpours occur.

By Brian Jackson  |  06:50 PM ET, 08/14/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 05:00 AM ET, 08/13/2011

Forecast: Heavy showers and storms this afternoon and Sunday

Humidity returns today as highs reach the upper 80s to near 90, replete with widespread afternoon showers and storms, likely to produce downpours in spots. More heavy rains are a good bet on Sunday. After that, things may stay unsettled into the beginning of the work week, with temperatures likely below 90.

By Ian Livingston  |  05:00 AM ET, 08/13/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/13/2011

UnitedCast: Chance of showers, but no washout

Not as comfortable as recent days, but with any luck not wet either. Still, you’ll probably get the feeling rain is on the way even if you don’t see any at the game. Temperatures should be in the 80s.

By Ian Livingston  |  04:55 AM ET, 08/13/2011 |  Permalink  |  Comments ( 0)
Categories:  UnitedCast, Latest

Posted at 06:45 PM ET, 08/12/2011

Weatherman dream: My first stab at weather education

I actually first dabbled with weather education as an upstart ivy-league collegiate trying to fulfill my Columbia College core curriculum science requirement. I had the bright idea to take a weather class to re-start my journey to fulfill the science requirement. I loved the weather, was passionate about the weather – of course I’d rock this class. Would be one science class down, two to go. No problem. Big problem.

By Scott Zakheim  |  06:45 PM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Weather Dream, Latest, Humor

Posted at 03:50 PM ET, 08/12/2011

PM Update: High humidity to return, rain late Saturday into Sunday

Like yesterday, today delivered delightful dry air even as temperatures soared to the upper 80s. A splendid evening closes out our duo of dynamic days before the weather takes a slow turn for the worse as the weekend wears on. On Saturday night and Sunday, soakings seem like a strong possibility.

By Jason Samenow  |  03:50 PM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:30 PM ET, 08/12/2011

Perseid meteor shower and International Space Station flyby late tonight - double pleasure

Whether you were able or not to view Perseid meteor showers earlier this week, tonight’s peak should still provide a good show despite the interference of this month’s full moon. Moreover, tonight will be a double treat, for coincidentally the International Space Station will be visible (local sky conditions permitting) over much of the U.S.

By Steve Tracton  |  02:30 PM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Astronomy, Latest, Space

Posted at 12:00 PM ET, 08/12/2011

Peak of hurricane season nears, tropical Atlantic firing up

Peak hurricane season spans mid-August through late October. As we enter this active period, the National Hurricane Center (NHC) is currently tracking four disturbances with potential to develop into tropical cyclones - that is, tropical storms and hurricanes. None represent any near-term landfall threat.

By Greg Postel  |  12:00 PM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 11:55 AM ET, 08/12/2011

SkinsCast: Clear & even a touch cool

Fantastic evening to kick off the preseason with low humidity

By Dan Stillman  |  11:55 AM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  SkinsCast, Latest

Posted at 10:30 AM ET, 08/12/2011

Fire from Virginia’s Great Dismal Swamp may blow smoke on D.C. Saturday, reducing air quality

A bolt of lightning ignited a large fire on August 4 in the dry grass and brush of the Great Dismal Swamp National Wildlife Refuge in extreme southeast Virginia. Through Tuesday, the fire had consumed 3,200 acres reports NASA. When its smoke blows north Saturday, it may generate dismal air quality in Washington, D.C.

By Jason Samenow  |  10:30 AM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Health

Posted at 05:00 AM ET, 08/12/2011

Forecast: Delightfully mild, and still dry... for now

Before a possible rainy day on Sunday that could bring us much needed rain, we’re looking at a great Friday. Get out for a nice lunch today, provided you are wearing sunscreen (thank you!). Look for highs in the mid-to-upper 80s today and tomorrow before that rain risk goes way up by Sunday. It could be our first decent areawide rain in some time.

By A. Camden Walker  |  05:00 AM ET, 08/12/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 06:00 PM ET, 08/11/2011

NBC4’s Chuck Bell in TV weather blooper: Failure or good recovery?

In a recent weather segment, NBC4 meteorologist Chuck Bell encountered some major technical difficulties. Watch the video in this post. Did he recover well or fail?

By Jason Samenow  |  06:00 PM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Media, Latest, Humor

Posted at 04:45 PM ET, 08/11/2011

PM Update: Glorious weather for another day

There’s not a lot to say about today except that it was simply sublime. We had just the right combination of sensational sunshine and blissfully low humidity. An outstanding evening lies ahead to be followed by a marvelously refreshing morning and awesome afternoon. How’s that for a superlative packed twenty-four hour forecast?

By Jason Samenow  |  04:45 PM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:45 PM ET, 08/11/2011

Washington, D.C. is in drought. Will weekend rains bust us out?

It’s official. Our region is in a drought. Neither severe nor expectional like in vast portions of Texas and Oklahoma, but a drought nonetheless. The good news is rain - perhaps substantial rain - is possible this weekend.

By Jason Samenow  |  02:45 PM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Local Climate, Droughts, Latest

Posted at 12:15 PM ET, 08/11/2011

My TV weather inspirations, and keeping it real

Here are the latest two entries in this reality blog series about blogger Scott Zakheim’s quest to be a famous weatherman.

By Scott Zakheim  |  12:15 PM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Weather Dream, Latest, Media, Humor

Posted at 10:30 AM ET, 08/11/2011

Moving plants can be a moving experience

I figured that while the weather took a little break from the baking we have seen all summer, this would be a good time to talk about moving plants. I have joked before that at this point in the life of my garden, I spend as much time rearranging plants as I do planting new ones.

By David Streit  |  10:30 AM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Environment, Local Climate, Latest, Gardening

Posted at 05:00 AM ET, 08/11/2011

Forecast: You are not dreaming - sunny, low humidity and nice temps today and tomorrow

Brace yourself: today will be the first cooler than normal day we have seen in nearly a month! And better yet we do it again tomorrow too. That infernal, never-ending string of 90s should be out of commission for quite some time. Humidity does build back this weekend along with rain chances, particularly Sunday.

By David Streit  |  05:00 AM ET, 08/11/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:45 PM ET, 08/10/2011

PM Update: Nice summertime weather ahead

The final day of our 6th heat wave of the season is winding down as D.C. adds on yet another 90+ one. But, all in all, it’s not too bad out there. A breeze and continually lowering humidity give the sense that the worst might be over when it comes to summer heat. I know I hope so! Better yet, the next few days should be further reminder of that. 

By Ian Livingston  |  03:45 PM ET, 08/10/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:00 PM ET, 08/10/2011

Dramatic videos: Glacier calving in Alaska, ice shelf in Antarctica

Glaciers are receding around the world, one of many indicators of global warming. Many travelers head to Alaska to tour the majestic mountains of ice before they melt away. One group of tourists recently got too close to collapsing glacier. Watch the video below as the glacier shatters to shards...

By Jason Samenow  |  02:00 PM ET, 08/10/2011 |  Permalink  |  Comments ( 0)
Categories:  Climate Change, Latest

Posted at 12:45 PM ET, 08/10/2011

AccuWeather’s Margusity takes early look at winter

The low this morning in Embarrass (yes - that’s the town’s name), Minnesota dipped to 36 chilly degrees - a sure sign autumn is right around the corner. And some folks are already thinking ahead to winter. Take AccuWeather’s Henry Margusity, who unveiled his preliminary ideas about the coming cold season yesterday.

By Jason Samenow  |  12:45 PM ET, 08/10/2011 |  Permalink  |  Comments ( 0)
Categories:  Winter Storms, Capital Weather Gang, Latest

Posted at 10:45 AM ET, 08/10/2011

Daring to dream big: I want to be a famous weatherman

Please join me in welcoming Scott Zakheim, who is a pursuing a dream to become a famous television weatherman. In an exclusive partnership, Scott will be documenting his journey right here. On his personal blog, the very early phase of this quest is already “on the record” so you can read ahead if you want. But stay with us and we will get you caught up in the next week or so. Then Scott will post original updates right here. Here are his first two entries, somewhat abbreviated. Go Scott go!

By Scott Zakheim  |  10:45 AM ET, 08/10/2011 |  Permalink  |  Comments ( 0)
Categories:  Media, Humor, Latest, Weather Dream

Posted at 05:00 AM ET, 08/10/2011

Forecast: Another run at 90+ today, but that could be it for some time

After 44 days of 90 degree or greater heat, 24 of which (including yesterday) were 95-degrees plus, I think we can take one more before what could be an extended break from such temperatures. The promise of cooler weather ahead is both welcome and earned. If we’re lucky, there may even be some rain on the horizon, but unfortunately that arrives for the weekend.

By Ian Livingston  |  05:00 AM ET, 08/10/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:15 PM ET, 08/09/2011

PM Update: Gradually drying out and becoming pleasant

Despite considerable clouds, we still logged yet another day at or above 90-degrees. Unfortunately for those in need of rain - most of us - showers and thunderstorms have been widely scattered. Storms gradually subside this evening marking the transition to drier and eventually cooler conditions.

By Jason Samenow  |  04:15 PM ET, 08/09/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:55 PM ET, 08/09/2011

Is there a global warming signal in Washington D.C. summer temperatures?

There is no disputing D.C. summer climate has warmed markedly since record-keeping began in the late 1800s. There is an overall warming trend of about 3 degrees F per century - slightly greater at night and lower during the day. But what one might dispute is the cause.

By Jason Samenow  |  02:55 PM ET, 08/09/2011 |  Permalink  |  Comments ( 0)
Categories:  Climate Change, Latest, Local Climate

Posted at 12:00 PM ET, 08/09/2011

Perseid meteor showers peak late week; best viewing probably late tonight

There are very few instances beyond a day or two, especially during summer, that one can predict showers with complete certainty. This week is just such a case, except the showers are not rain, but the annual appearance of the Perseid meteor shower. This year, the issue is if and when the meteors will be visible. And it turns out, they may be most visible very late tonight.

By Steve Tracton  |  12:00 PM ET, 08/09/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Astronomy, Space, Tracton

Posted at 10:30 AM ET, 08/09/2011

July: most extreme and 4th warmest in US; Oklahoma hottest ever state average temperature

NOAA released the July “State of the Climate” update for the U.S., and, no surprise, reported blistering heat torched large parts of the country. The average temperature of 77 was the fourth warmest since 1895. Amazingly, Oklahoma’s average July temperature was 88.9 degrees - the warmest to occur in any state for any month on record. In NOAA’s index that examines the percentage of the U.S. impacted by a full range of extreme weather conditions, July ranked highest on record since 1910.

By Jason Samenow  |  10:30 AM ET, 08/09/2011 |  Permalink  |  Comments ( 0)
Categories:  U.S. Weather, Latest

Posted at 05:00 AM ET, 08/09/2011

Forecast: More clouds, afternoon storm chances

We have to suffer through today in order to get to some excellent mid-to-late week weather. Upper 80s to low 90s with mostly cloudy skies and a 40% chance of afternoon and evening thunderstorms. Humidity lowers tomorrow with more sun and a fantastic Thursday follows suit.

By Matt Rogers  |  05:00 AM ET, 08/09/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:45 PM ET, 08/08/2011

PM Update: Heat continues; rain chances up tomorrow

Day 43 of 90-degrees plus in D.C. is in the books, but lower humidity levels made it at least a little more tolerable. Expect another toasty one tomorrow with highs reaching the low-to-mid 90s, but a storm system approaching and then passing by should spark off some showers and thunderstorms during the later part of the day. A few storms could be severe and also could produce heavy rain.

By Ian Livingston  |  03:45 PM ET, 08/08/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:15 PM ET, 08/08/2011

July Arctic sea ice melts to record low extent, volume

The impacts of a sweltering July extended well beyond the eastern two-thirds of the continental U.S. Both the extent and volume of ice in the Arctic were lowest on record for the month according to data and estimates from the National Snow and Ice Data Center and Polar Science Center.

By Jason Samenow  |  02:15 PM ET, 08/08/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Climate Change

Posted at 12:15 PM ET, 08/08/2011

Thunderstorm time lapse and tree damage videos

Scattered showers and thunderstorms developed across the Washington area during the late afternoon and early evening on Sunday. The storms were fairly small, but they dropped briefly heavy rain as they moved southeast across the area. I was in Manassas, Virginia at the time and had a good view of the storms firing up in the northeastern sky. I set up a video camera and recorded the storms developing and moving across Fairfax County and the southern portion of Washington, D.C.

By Kevin Ambrose  |  12:15 PM ET, 08/08/2011 |  Permalink  |  Comments ( 0)
Categories:  Photography, Latest

Posted at 10:00 AM ET, 08/08/2011

What is Washington, D.C.’s weather like in August? Breaking down norms and extremes

Yeah, it’s still summer but we're used to it by the time August rolls around, right? Even though temperature averages are on their way down, August provides just a bit less in the way of heat than July but considerably more than June. And while it holds several rainfall records, recent Augusts seem a bit dry.

By Ian Livingston  |  10:00 AM ET, 08/08/2011 |  Permalink  |  Comments ( 0)
Categories:  Local Climate, Latest

Posted at 05:00 AM ET, 08/08/2011

Forecast: Hot Monday and Tuesday then wonderful Wednesday through Friday relief

If you’re sick of the heat, join the crowd. But consider - just two more days and it’s going to get much better. Wednesday through Friday promises to be an outstanding stretch of summer weather. Looking for a long duration, soaking rain? I can’t offer much help there, but Tuesday and Sunday offer at least medium odds of some showers and storms.

By Jason Samenow  |  05:00 AM ET, 08/08/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 05:00 AM ET, 08/07/2011

Forecast: 90s roll back into town

Yesterday’s high of 93 at Reagan National broke a three-day streak of highs only in the 80s. A new streak of 90s likely continues today. But fortunately this 90s streak has a good chance of staying in the single digits. Meanwhile, any showers and storms today should be less widespread than yesterday, though the pattern remains favorable for at least a small chance of rain each day through midweek.

By Brian Jackson  |  05:00 AM ET, 08/07/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 05:00 AM ET, 08/06/2011

Forecast: Chance of rain today into tonight, then turning hotter on Sunday

Any sunshine we see today helps set rain showers, and maybe some rumbles of thunder, in motion. While not everyone is likely to see a dousing, some spots may. Highs mainly reach the middle 80s, but throw in some extra sun and we could near 90. Enjoy this continuation of our “cool” streak, as it appears 90-degree weather returns tomorrow and into the beginning of next week.

By Ian Livingston  |  05:00 AM ET, 08/06/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/06/2011

UnitedCast: Warm and muggy, maybe a shower

The risk of showers and thundershowers that forms during the day continues into the evening, so it’s possible parts of the game could end up wet.

By Ian Livingston  |  04:55 AM ET, 08/06/2011 |  Permalink  |  Comments ( 0)
Categories:  UnitedCast, Latest

Posted at 04:00 PM ET, 08/05/2011

PM Update: Humid Saturday with PM rain chance; few showers Sunday, heating up some

Our hiatus from the heat extended for a third day, with no 90-degree readings in the region today. Same deal Saturday, when clouds and possible afternoon showers put a lid on temperatures. Aside from the timing of the rain - which could complicate/disrupt outdoor plans - the water is welcome. By Sunday, the rain retreats and the heat is back.

By Jason Samenow  |  04:00 PM ET, 08/05/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 02:15 PM ET, 08/05/2011

Tropical storm Emily remnants may regenerate; typhoon Muifa nears China

After weakening from a tropical storm to a tropical wave over the mountainous terrain of Hispaniola, the remnants of Emily have now emerged over the southern Bahamas. The National Hurricane Center says the tropical wave has a 60% chance of regaining tropical storm status. However, little or no impact is expected along the U.S. East Coast.

By Jason Samenow  |  02:15 PM ET, 08/05/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 11:15 AM ET, 08/05/2011

Relentless heat still baking south and south central U.S. – mid-Atlantic catches a lucky break

Record-setting heat has been the “hot” topic of conversation across much of the country this summer. Nearly 9000 heat records were set in July, and parts of the south central U.S. (including the state of Oklahoma) and mid-Atlantic (including Washington, D.C.) had their hottest months on record. For the mid-Atlantic, relief has arrived - at least for the short term. Yet much of the southern and central U.S. continues to bake in record heat, extending impressive streaks of triple-digit days in some locations.

By Justin Grieser and Jason Samenow  |  11:15 AM ET, 08/05/2011 |  Permalink  |  Comments ( 0)
Categories:  Extreme Heat, U.S. Weather, Latest

Posted at 05:00 AM ET, 08/05/2011

Forecast: More 80s ahead, with plenty of clouds around and some chances for rain as well

The next few days provide a continued break from the high heat we saw so much of recently. Both today and tomorrow look to feature highs only making it into the 80s. That typical summertime humidity will still be around though, making it not feel as delightful as it might otherwise given the circumstances. Today should be largely (or entirely) dry, but rain chances increase considerably tomorrow.

By A. Camden Walker  |  05:00 AM ET, 08/05/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 05:00 PM ET, 08/04/2011

Significant solar storm headed to Earth Friday

A “moderate to strong” solar storm is on its way to Earth Friday. An erupting sunspot has unleashed three solar flares in as many days, the third particularly potent.

By Jason Samenow  |  05:00 PM ET, 08/04/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Space, Astronomy

Posted at 03:30 PM ET, 08/04/2011

PM Update: Remaining humid as high heat stays away

Considerable clouds held the mercury below 90 for a second straight day. And although it was humid, the mugginess sure was more tolerable without scorching temperatures. To close out the work week Friday, we have another day with highs in the 80s.

By Jason Samenow  |  03:30 PM ET, 08/04/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 01:45 PM ET, 08/04/2011

NOAA increases forecast for number of Atlantic tropical storms and hurricanes

Five storms into the 2011 Atlantic hurricane season and with tropical storm Emily bearing down on Haiti, NOAA has upped its prediction for the amount of tropical activity this year. Whereas its outlook issued in late May forecast 12-18 total named storms, it now expects 14-19. And it nudged up its projection for hurricanes to 7-10 from 6-10.

By Jason Samenow  |  01:45 PM ET, 08/04/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 11:30 AM ET, 08/04/2011

Tropical storm Emily bears down on Haiti, its future and U.S. landfall prospects uncertain

Tropical storm Emily, which has changed little in strength for two days, is closing in on the island of Hispaniola, which encompasses Dominican Republic and Haiti. At 11 a.m., it was positioned 90 miles south of Port Au Prince, Haiti. Heading west northwest at 5 mph, maximum sustained winds are 50 mph.

By Greg Postel and Jason Samenow  |  11:30 AM ET, 08/04/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Tropical Weather

Posted at 05:00 AM ET, 08/04/2011

Forecast: Rains push south and high heat stays away, but humid

After terminating the 90+ streak Wednesday, we have a chance to remain below that threshold for the next three days. The problem is we can not buy rain these days. If the rain eludes us this weekend, we will slip back into drought conditions. More, the dry soils tack on some extra heat during the day and do nothing to cut down on the humidity.

By David Streit  |  05:00 AM ET, 08/04/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:30 PM ET, 08/03/2011

PM Update: Clouds, rain and storms end 90-degree day streak

After 16 days at-or-above 90, we have finally caught a break in the form of clouds and periodic rain. Thus far, the storminess has not been terribly intense, but it is bringing a bit of needed rain to the region. We’ll watch to see if anything becomes strong to severe still today, but the best odds appear to be south. Tomorrow, the sun returns, and we may get up near 90 again.

By Ian Livingston  |  03:30 PM ET, 08/03/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 01:15 PM ET, 08/03/2011

Photo and video: Lightning streaks across double rainbow in Fairfax, Va.

Thunderstorms early Monday evening moved to the east, north, and south of Fairfax, Virginia, dropping very little rain in central Fairfax County but producing a very nice combined rainbow and light show in the sky.

By Kevin Ambrose  |  01:15 PM ET, 08/03/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Photography

Posted at 11:15 AM ET, 08/03/2011

Tropical Storm Emily moves through Caribbean, possibly setting sights on Southeast U.S. coast

Tropical storm Emily continues to move westward at 14 mph towards the island of Hispaniola on which lies Haiti and the Dominican Republic. Its current position is 125 miles south of Santo Domingo in the Dominican Republic. Maximum sustained winds are estimated by the National Hurricane Center to be near 50 mph, and little strengthening is likely before it encounters Hispaniola this evening

By Greg Postel  |  11:15 AM ET, 08/03/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 05:00 AM ET, 08/03/2011

Forecast: Cooling trend brings chances to break 90+ streak; showers & storms a threat today

Today would make 17 straight days at or above 90 at Reagan National - four short of the D.C. record for consecutive 90-degree days - but clouds and potential showers/storms mean that reaching 90 isn’t a sure bet today. In fact, every day through the weekend holds at least a chance of highs below 90. On the other hand, a high right at 90 or a little past is plausible each day as well.

By Dan Stillman  |  05:00 AM ET, 08/03/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/03/2011

NatCast: Mild, kinda muggy & maybe a t’storm

Main issue is whether potential afternoon showers/storms develop early enough to impact the game.

By Dan Stillman  |  04:55 AM ET, 08/03/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 07:00 PM ET, 08/02/2011

Queens, New York: Hail that had to hurt

Baseball sized hail battered sections of Queens, New York Monday night.

By Jason Samenow  |  07:00 PM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  U.S. Weather, Latest

Posted at 04:30 PM ET, 08/02/2011

PM Update: Not as hot Wednesday, but humid with storm risk

Our 16th straight 90+ day is in the books and, remarkably, our 6th straight day at 95 or higher. Both of those streaks may end tomorrow, especially the latter.A potent wave of low pressure will produce clouds and likely showers and storms, capping temperatures. But some partial sunshine may precede the storms fueling their potential while giving the mercury a chance to extend the 90+ streak.

By Jason Samenow  |  04:30 PM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:15 PM ET, 08/02/2011

Will August be as hot as July in Washington, D.C.?

After a record hot July, should Washingtonians be dreading what’s to come in August? The good news is that August is usually cooler than July. The average temperature in July is 79.8 compared to 78.1 in August. But it can still be scorching. Take, for example, August 1980 which set monthly records for both average temperature (82.8 degrees) and the number of 90+ degree days (22). That made August of 80 only slightly less sweltering than July 2011, with an average temp of 84.5 and 25 90+ days

By Jason Samenow  |  03:15 PM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, Extreme Heat, Local Climate

Posted at 01:00 PM ET, 08/02/2011

Tropical storm Emily: Will it intensify and threaten East Coast?

Since it formed last night, tropical storm Emily has struggled to get its act together. Positioned 270 miles southeast of San Juan this morning, the storm has “meandered” over the last few hours according to the National Hurricane Center, but is expected to pick up the pace and head west northwest at 12 mph later today. A minimal tropical storm, Emily’s maximum sustained winds are 40 mph.

By Jason Samenow  |  01:00 PM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 10:30 AM ET, 08/02/2011

Severe U.S. drought sets another record; costs to U.S. economy upward of $1.5 billion

Instead of receding during this sizzling, humid summer, the intense drought that has ensnared much of the southern tier of the nation during the past several months has only intensified, reaching record levels during July. According to new data, the area of the country covered by “exceptional drought” conditions was the largest since such records began more than a decade ago.

By Andrew Freedman  |  10:30 AM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Droughts, Extreme Heat, Freedman, U.S. Weather, Latest

Posted at 05:00 AM ET, 08/02/2011

Forecast: Sunny, dry, and hot again; cloudy, chance of storms Wednesday

While we will suffer less humidity today, we still see hot weather with highs well into the 90s under mostly sunny skies. Storms and clouds arrive tomorrow with potentially enough of them to keep many areas below 90 for the first time since mid-July. More heat and humidity return for Thursday and Friday, but at least no repeats of 100-degree temperatures are expected.

By Matt Rogers  |  05:00 AM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/02/2011

NatCast: Hot evening, but rain unlikely

Only a few widely scattered clouds means mostly sunny skies into the evening as the game starts. Lingering heat wil be uncomfortable, but we don’t have humidity or storm chances like last night.

By Matt Rogers  |  04:55 AM ET, 08/02/2011 |  Permalink  |  Comments ( 0)
Categories:  Latest, NatCast

Posted at 04:00 PM ET, 08/01/2011

PM Update: DC hits 100 setting another record; strong storms possible thru evening

Today’s highs in the mid-90s to near 100 have almost become “normal” this year, but with any luck they’ll be the highest temperatures we see for a bit. Now attention turns to storms that are a threat into the evening as a weak cold front approaches. While, as usual, they may be hit-or-miss, some could pack a heavy rain punch and even bring areas of damaging wind.

By Ian Livingston  |  04:00 PM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 03:00 PM ET, 08/01/2011

Extreme July weather: hottest ever in D.C., Philadelphia, and Austin; record wettest in Chicago

Washington, D.C. wasn’t the only city to suffer through a record hot July. Philadelphia, Baltimore, and Atlantic City did too. In the south central U.S., Austin and Wichita Falls, Tx. as well as Oklahoma City, Ok. experienced record hot months. And along the northern fringe of the heat bubble, Chicago was deluged with its wettest July on record.

By Jason Samenow  |  03:00 PM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  Extreme Heat, U.S. Weather, Latest

Posted at 12:10 PM ET, 08/01/2011

Tropical storm Emily may track towards U.S.

At 7:30 p.m. this evening, the National Hurricane Center named the disturbance AL91, tropical storm Emily. Emily, with maximum winds of 40 mph, is 350 miles southeast of San Juan, Puerto Rico, moving west at 17 mph. A variety of tropical storm watches and warnings are in effect for parts of the Leeward Islands, the U.S. Virgin Islands, Puerto Rico, and Hispaniola.

By Greg Postel  |  12:10 PM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  Tropical Weather, Latest

Posted at 10:40 AM ET, 08/01/2011

July 2011: The hottest month in Washington, D.C. history

Congratulations D.C.-area readers. You have just experienced -- or tolerated, survived, and suffered -- the hottest month in recorded history. We did it last July too, but this time we soared just over another degree on average to achieve an incredibly toasty 84.5F at Washington Reagan National Airport. That’s 4.7 degrees hotter than the new 1981-2010 normal or 5.3 degrees hotter than the old 1971-2000 climatological baseline. Also, it is slightly hotter than a normal July for Houston, TX and slightly cooler than a normal July for Dallas, TX. It’s like we were living in a whole different part of the country.

By Matt Rogers and Ian Livingston  |  10:40 AM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  Local Climate, Extreme Heat, Latest

Posted at 05:00 AM ET, 08/01/2011

Forecast: August picks up where July left off - more extreme heat

Let’s begin with some good news: I do see a very gradual pattern shift towards modestly cooler temperatures in the week ahead. I also see several opportunities for showers and storms. The bad news is the week starts off stifling, and the cooling I’m talking about may only lower high temps to the upper 80s or low 90s from the recent upper 90s.

By Jason Samenow  |  05:00 AM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  Forecasts

Posted at 04:55 AM ET, 08/01/2011

NatCast: Braving the heat, slight storm risk

After a hot day, there’s a 20-30% chance storms cool things off - prompting a delay in the process. Otherwise, it’s very warm with temps only slowly falling from around 90 into the upper 80s.

By Jason Samenow  |  04:55 AM ET, 08/01/2011 |  Permalink  |  Comments ( 0)
Categories:  NatCast, Latest

 

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