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Posted at 3:00 PM ET, 03/22/2010

PM Update: First thunder of the season

By Ian Livingston

Work week still mostly mild compared to average

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Some wait for a sunny stretch like we just had to announce the arrival of spring -- for me its thunderstorms. Scattered strong to potentially severe storms have popped up this afternoon, as highs reach the rather muggy mid-60s, after a midday batch of showers and thundershowers. Even with all signs pointing toward "go," spring is volatile and rumors of winter may return...

Through Tonight: Scattered showers and thunderstorms continue through the afternoon. Any showers or storms could bring briefly heavy rain, strong winds and some hail. Most activity should wind down this evening, but a lingering hit-or-miss shower is possible into the night, especially to the north. Winds shifting to come out of the west will bring cooler and drier air with overnight lows from the low-to-mid 40s in the suburbs to the mid-and-upper 40s downtown.

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Tomorrow (Tuesday): We probably stay pretty cloudy tomorrow, with perhaps some sunshine showing up here and there. Highs should rise to the mid-and-upper 50s, maybe touching 60 if enough sun breaks through. It should be mainly dry, with just the outside risk of a shower as some instability remains near the area.

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

Warm-stretch stats: During the four days above 70 in D.C. ending yesterday, temperatures were 12 degrees above average for this time of year. National's highest reading during the period was 76 on Sunday, the first time we have been that warm since October (75 on the 21st and 85 on the 9th). Both Dulles and BWI also topped 75 this weekend, with Dulles setting a record high of 78 on Sunday. National may be on track for a top-10 warmest March on record and stands 5.5 degrees above normal for the month as of yesterday.

By Ian Livingston  | March 22, 2010; 3:00 PM ET
Categories:  Forecasts  
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Next: Forecast: Cloudy and cooler today


Oy - dont like that rotation...its into SW Charles and making a beeline for the District. Tis the season I guess.

Posted by: DullesARC | March 22, 2010 3:18 PM | Report abuse

The NEXRAD Radar has picked up a Tornado Vortex Signature on that cell near Fredericksburg.

Posted by: Yellowboy | March 22, 2010 3:20 PM | Report abuse

Lots of upper level energy .. as has been the case recently. If this was 4 weeks+ later it would be a big outbreak probably. Impressive cells given the surface.

Posted by: Ian-CapitalWeatherGang | March 22, 2010 3:24 PM | Report abuse

Just got the following e-mail from AlertDC: "Strong Thunderstorm headed for D.C. through southern D.C. suburbs. Please take precautions. Wind gusts of 40-50 MPH, small hail, and downpours which reduce visibility below 1 mile can be expected with this storm. Graphic at "

Posted by: JedinBethesda | March 22, 2010 3:51 PM | Report abuse

I am right behind National Harbor on the Potomac. The radar looks ominous but from where I am sitting, it's bark is worse than it's bite. The deep reds on the radar are right above me and all I have are a few large raindrops. No wind or thunder or heavy rain. Ah! Take that back. One clap of thunder just now yet it is not raining or windy. Bummer.

Posted by: pjdunn1 | March 22, 2010 3:59 PM | Report abuse

Arg. I was hoping the severe weather would wait until after 7. I rode my bike in hoping it would just keep spritzing all day. Exactly how foolhardy would it be to ride it home (Capitol Hill to Old Town via Mount Vernon Trail)?

Posted by: freckleface | March 22, 2010 4:53 PM | Report abuse

Hail in Springfield.

Posted by: DrMeglet | March 22, 2010 5:19 PM | Report abuse


Probably best to keep an eye on radar and wait until after this next cluster passes through.

Posted by: CapitalWeatherGang | March 22, 2010 5:25 PM | Report abuse

Lightning, thunder and heavy rain in Merrifield. Some embedded hail as well.

Posted by: --sg | March 22, 2010 5:27 PM | Report abuse

Current conditions in Burke: 59.4 with sporadic thunder.

It has hailed here for the second time today!

Posted by: Yellowboy | March 22, 2010 5:27 PM | Report abuse

Out here in Reston, VA, we just had our first thunderbuster. It was raining at a rate of 6.70" an hour, and I saw some Nickel and Quarter sized hail bouncing around.

Posted by: TheAnalyst | March 22, 2010 5:50 PM | Report abuse

@ linjianying

More relevantly, we heard hail on the roof as a storm passed over Woodbridge sometime between 1 and 2. It was a good show.

Posted by: SpeedLimit186000 | March 22, 2010 8:16 PM | Report abuse

Depending on how close you live to D.C., this is not the first thunder of the season. Salisbury, MD managed to get (briefly) into the warm sector of one of those big snowstorms a couple of months ago, and reported a 60-something temperature with a thunderstorm.

Posted by: MMCarhelp | March 22, 2010 11:39 PM | Report abuse

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