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Posted at 03:45 PM ET, 04/11/2011

PM Update: Warmth to end, wet Tuesday

4:05 p.m. update: BWI has at least tied a previous record high with a temperature of 85 this hour.

The rumored warmth finally showed up today, but unfortunately for those wanting more, it’s somewhat short lived for now. A cold front approaching from the west, and a storm that forms along it then stalls out for a bit, is sure to knock today’s highs mostly in the 80s (no records yet -- but we’ll let you know) back a good deal.


Radar & lightning: Latest D.C. area radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Through Tonight: The cold front slowly moving toward us gets held up a little more by a low pressure forming along it to our southwest. There may be an isolated shower or storm through midnight, any of which could be strong, though severe weather is not terribly likely and it should be mainly dry. The odds for showers and storms go up considerably heading into the morning. Overnight lows range from near 60 into the mid-60s.

Thundercast:

Probability: 50% morning, 60% (afternoon/evening)

Coverage: Showers arriving in the morning may contain thunder. Late-day activity could be more widespread.

Most Likely Timing: 6 a.m.-9 a.m. and 2 p.m.-9 p.m

Tomorrow (Tuesday): An intense upper-level low pressure developing over the area sends a surface low into the region and keeps us with a risk of waves of rain and storms throughout the day. Any sun should lead toward additional development. A storm or two could be strong with all the atmospheric energy around -- main threats are hail and/or strong winds. Temperatures probably rise (or hover) near 60 to the mid-60s, though they may fall into the 50s, especially when rain moves by. Rain totals could reach .5”-1” if it comes together right.

See Jason Samenow’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter .

Early warning: Perhaps the most talked about (other than the nighttime twin tornado video) storm of the weekend was the one which spawned a tornado that leveled large parts of Mapleton, Iowa. Incredibly, this tornado which is believed to have been between 1/4 and 3/4 of a mile large (see vid), did not kill anyone. This fact led a local sheriff to proclaim, “Somebody was looking out for this community.” And he was right -- warnings issued at least 15 minutes prior to the storm hitting the town undoubtedly saved lives.

By  |  03:45 PM ET, 04/11/2011

Categories:  Forecasts

 
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