The Washington Post

PM Update: Humidity stays low for one more day; Pollen counts are high

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

A delightful breeze and low humidity made today pretty enjoyable, despite the temperature climbing to the upper 80s in the city. Outside the city, things were even more pleasant with highs only reaching the low 80s in some locations.  Morning clouds cleared out by the afternoon and winds climbed to around 15 mph, with gusts around 20 mph. Friday should be similarly nice, though not as breezy. One more day before the heat and humidity creep in for the holiday weekend.

Through Tonight: Throw the windows open tonight as the temperature decreases to the mid-70s by 8 p.m. downtown and closer to 70 in the suburbs. Early Friday morning, lows bottom out in the mid-60s in the city, and the mid-to-upper 50s in the cooler suburbs. Winds from the northwest will start to back off overnight, 5 to 10 mph.

Tomorrow (Friday): Humidity stays fairly low as dew points hold steady in the mid 50s, and temperatures max out in the low to mid 80s. High pressure keeps skies clear.  Winds are light in the morning, shifting to out of the east by the evening hours as a weekend warm front approaches.

See David Streit’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

Pollen: If you’ve been feeling a little sneezy, you’re not alone. While tree pollen remains LOW, grass counts are MODERATE and weeds are HIGH. Mold spores are also HIGH.

A beautiful scene at Great Falls on Thursday morning. (Sujinder Pothula via Flickr)

Severe weather warnings so far in 2014

A graphic created by the Iowa Environmental Mesonet shows how atmospherically active different regions of the country are so far this year, at least by how many severe weather warnings have been issued.

The graphic tabulates how many tornado, severe thunderstorm, and flash flood warnings have been issued by each National Weather Service forecast office.

D.C.’s Weather Service office in Sterling, Va. has issued 289 of these warnings so far this year. The most active office by far has been the Jackson, Miss. office which covers central Mississippi as well as far southeast Arkansas and northeast Louisiana. The Jackson office has issued 522 severe weather warnings so far in 2014.

Number of tornado, severe thunderstorm, and flash flood warnings issued by each National Weather Service forecast office since the beginning of 2014. (Iowa Environmental Mesonet)
Angela Fritz is an atmospheric scientist and The Post's deputy weather editor.
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Angela Fritz · August 28, 2014

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