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Posted at 10:45 PM ET, 04/25/2010

Severe T'storm Watch dropped for metro region

By Jason Samenow

* Our Full Forecast | Storms? Radar & more: Weather Wall *

The National Weather Service has discontinued the Severe Thunderstorm Watch that had been issued earlier. Nonetheless, showers and thunderstorms will impact much of the area overnight and a few could still be strong (particularly through midnight) -- with locally heavy rain, gusty winds, and small hail.

Some of the storms from earlier this evening produced large hail, mostly in the north and west suburbs -- with up to 1.5" diameter hail in NW Montgomery County near Damascus. Large hail has also been reported in Rockville.

By Jason Samenow  | April 25, 2010; 10:45 PM ET
Categories:  Updates  
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Definitely hearing thunder in Silver Spring.

Posted by: epjd | April 25, 2010 10:15 PM | Report abuse

I'm no longer hearing rain or thunder in Silver Spring/Takoma Park.

Posted by: Murre | April 25, 2010 10:35 PM | Report abuse

We're about to get slammed by a strong line of storms in Western Ffx., and the stupid transformer near my location has already blown a few times, even though we haven't even been hit yet.

Just giving folks a heads up, if you have an exposed vehicle outside, and a cover for it, now is the time to put the cover on it. Most of these storm cells are mesocyclonic, and some are producing severe hail (We're already getting 40 MPH gusts out ahead of the squall line, here in Western Ffx.).

UPDATE: For a moment they were showing a Tornadic Vortex signature out in Southern Loudoun County, around Cell V4, but it's not on the display anymore. The NWS hasn't issued any Tornado Warnings either, so I'm only taking it as a blip right now, with caution of course.¢erx=400¢ery=240&transx=0&transy=0&showlabels=1&severe=0&rainsnow=0&lightning=0&smooth=0

If we're fortunate, most of the energy will be dumped somewhere out in Loudoun before it gets to Ffx. (Sorry Loudoun ;-)

Posted by: TheAnalyst | April 25, 2010 10:36 PM | Report abuse

Severe Thunderstorm Watch dropped West of the Bay. Just strong (but not severe) storms left over the area

Posted by: JJones-CapitalWeatherGang | April 25, 2010 10:37 PM | Report abuse

Btw, am I the only one who notices how cool the temperature seems for severe storms? Typically it gets humid and warm before weather like this. I definitely think that the considerable cool-off this evening saved us from the worst.

Posted by: TheAnalyst | April 25, 2010 10:46 PM | Report abuse

Haven't had a drop of rain yet here in Northern Alexandria...

Posted by: AnneinSand | April 25, 2010 10:58 PM | Report abuse

Very severe thunderstorms (and not just strong ones) having been pummeling the Bel Pre/Layhill area of N. Silver Spring for the last 30 minutes. Was really surprised to not see any weather warnings for the area.

Posted by: Hanz1 | April 25, 2010 11:04 PM | Report abuse

The Analyist. the reason we're getting heavy storms in the area with 60 degree temperatures is the prescence of a meandering warm front in the area, very warm, unstable air aloft (the 75-degree warm air we had at the surface, in the sun, this afternoon), and the presence of a jet stream. The jet stream tends to accentuate tilted-updraft thunderstorms that are conducive to strong winds, microbursts, and large hail. In some cases, the jet stream and wind shear causes spinning/rotation in the thunderstorms.....that happened in one cell over Jefferson county earlier today, and resulted in a precautionary tornado warning, even though one was not seen or confirmed at the surface.

Posted by: MMCarhelp | April 25, 2010 11:19 PM | Report abuse

Northern Prince William county...lots of lightening seen on the northern horizon earlier, but nary a drop (OK, five drops) of rain here. Starting to feel like all those "cry wolf" days of impending snows...We need rain, and none is here!

Posted by: silencedogoodreturns | April 25, 2010 11:26 PM | Report abuse

Centreville VA Looks like we dodged the severe weather here in western Fairfax. Some wind, faraway lightning/thunder grumbles, & now it's raining a little.

Posted by: FIREDRAGON47 | April 25, 2010 11:29 PM | Report abuse

Did anyone notice, a few hours ago, how the squall line from Front Royal NE to Frederick shot forward to the east very rapidly on its N end, but just flattened out completely on the SW end, hung back there to the west in an E-W line, and never got into Fairfax or Prince William County? It seems like all the energy was in the north. By the time the S end finally got to Dulles, it had dissipated almost into nothing. Some of the dissipation, of course, was from the sun going down and the darkness, but the NE end of the line, in MD, stayed powerful and even split off for a while before re-forming into a solid E-W line again.

Posted by: MMCarhelp | April 25, 2010 11:29 PM | Report abuse

never mind my last. Two minutes after I sent it, it started to rain. FINALLY. Hopefully it will continue for more than a few minutes...

Posted by: silencedogoodreturns | April 25, 2010 11:30 PM | Report abuse

only lasted 10 the radar shows, whistled right through northern PW.

Posted by: silencedogoodreturns | April 26, 2010 12:04 AM | Report abuse

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