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Posted at 2:50 PM ET, 07/29/2010

Strong thunderstorms slowly moving southeast

By Ian Livingston

Heavy rain and isolated damaging wind main threats

* Severe Thunderstorm Watch until 7 p.m. *
* Friendship Heights Metro Station closed due to power outage *
* What about after the storms? See our full forecast *

2:50 p.m. update: Slow-moving storms with lots of lightning and heavy rain continue to impact mainly D.C. and to the south/southwest. Radar is indicating that over 1" of rain has fallen in some of these locations. Some reports of wind damage are trickling in, mainly in Montgomery County where trees and wires have been downed in places like Rockville. New power outages have been reported in parts of the area impacted by Sunday's storms, including at Friendship Heights Metro station. Rain has hit the National's game and a delay is in progress. These storms will continue to slowly shift south and east.

2:15 p.m. update: Storms, some strong, continue to pass through the central part of the area. There have been no new thunderstorm warnings recently and the main threat appears to be heavy rain and lightning with the activity presently moving through, but there is still potential for isolated severe weather. The cold front remains to our north, now passing through northern Maryland, and it is possible that additional (probably more isolated) activity could pop up during the remainder of the afternoon, particularly in places that see sunshine return quickly.

From the Storm Prediction Center:

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
Severe Weather Tracking Station
Warning Text: DC | MD | VA * NWS Local Storm Reports
Radar & Lightning: Movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here to see radar bigger.
LWX Warnings
Warnings: Severe alerts from National Weather Service. Updates w/o refresh (most browsers). Hint: Alert on map? Click matching label in key for details.

1:45 p.m. update: New storms developing in southern Montgomery County, northern Fairfax and Loudoun county are heading southeast. These storms should impact the District, eastern and central Fairfax county and Arlington in the next 30-45 minutes. These storms may be locally intense with gusty winds but not as strong as Sunday's. Warnings for the immediate metro region have been discontinued.

1:15 p.m. update: The Storm Prediction Center (SPC) has issued a Severe Thunderstorm Watch until 7 p.m. for the entire metro area as well as locations to the south and east. Thunderstorms -- some severe -- continue to be scattered across the area, though mostly concentrated between D.C. and Baltimore. These storms will continue to head southeast through the central part of the area over the next hour or so. Brief heavy rain as well as isolated damaging winds near or past 60 mph continue to be the main stories. So far, there are no confirmed reports of damage. Places west of D.C. appear to be missing out on most of this action, but additional showers or storms are still possible.

12:15 p.m. Scattered thunderstorms are currently advancing into the region from the north and northwest and will be impacting places like Montgomery and Loudoun counties shortly. Storms are continuing to intensify as they head in. The line may remain broken, meaning some places could stay storm free. Though the watch runs through 7 p.m., the timing of the worst storms around here should be between now and late afternoon.

By Ian Livingston  | July 29, 2010; 2:50 PM ET
Categories:  Alerts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   Del.icio.us   StumbleUpon   Technorati   Google Buzz   Previous: D.C. record snow in 2010 not due to global warming
Next: PM Update: Clearing and drying this evening

Comments

Well that certainly covers everything!
Today you could get pounded by heavy winds, hail & lightning.
Or you may get nothing at all.

Posted by: FIREDRAGON47 | July 29, 2010 12:37 PM | Report abuse

Warning now, not just a watch.

Posted by: rwalker66 | July 29, 2010 12:38 PM | Report abuse

We have been issued a Severe Thunderstorm Warning here in Fairfax County in advance of the major Dry Slot that is heading straight in our direction. Enjoy your rain Montgomery...

Posted by: rocotten | July 29, 2010 12:40 PM | Report abuse

Great! Rockville has the potential to get hit again. Love me some power outages! Remind me again summer-lovers why this time of year is so awesome?

Posted by: authorofpoetry | July 29, 2010 12:44 PM | Report abuse

So far there are no winds close to Sunday showing up on radar, but the line is threatening to pass over some of the same areas. May be more lightning this go around too.

Posted by: Ian-CapitalWeatherGang | July 29, 2010 12:48 PM | Report abuse

@rocotten: the warning is also for MoCo.

Looking at a live webcam view of skies over Germantown. Looks quite scary.

... A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR NORTH CENTRAL FAIRFAX... EAST CENTRAL LOUDOUN... MONTGOMERY AND WEST CENTRAL HOWARD COUNTIES...

AT 1251 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MONTGOMERY VILLAGE TO GERMANTOWN TO BOYDS... MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE... STERLING PARK... WASHINGTON GROVE... GAITHERSBURG... DARNESTOWN... OAK GROVE... DERWOOD... OLNEY... BRINKLOW... NORTH POTOMAC... GREAT FALLS... SANDY SPRING... GARRETT PARK... POTOMAC... BRADLEY FARMS... CONGRESSIONAL MANOR...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH... PREPARE IMMEDIATELY FOR DAMAGING WIND GUSTS AND FREQUENT CLOUD TO GROUND LIGHTNING. MOVE INDOORS TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

Posted by: rwalker66 | July 29, 2010 12:56 PM | Report abuse

Wind spikes picking up sw and ne of Gaithersburg, probably some severe gusts in those areas now.

Posted by: Ian-CapitalWeatherGang | July 29, 2010 1:00 PM | Report abuse

..and we just got our power back at 7 AM this morning!! I'm in Mont. Village right now and this storm was intense, but just short of damaging winds. Lots of lightning and torrential rain.

Posted by: DOG3521 | July 29, 2010 1:08 PM | Report abuse

@Ian: there go some more trees/branches down on power lines. Montgomery County not having much luck this summer. Live webcams showing very heavy rain in Germantown right now.

Posted by: rwalker66 | July 29, 2010 1:09 PM | Report abuse

Lightning just struck something in or parking lot in Gaithersburg about 5 minutes ago.

Posted by: dkf747 | July 29, 2010 1:11 PM | Report abuse

For the geniuses complaining about the power outages in the summer...why complain about it now? You were having power outages when you had 55 inches of snow...Not much of a difference I see. Since you have ZERO control over the weather and the potential damages...shut up, and take what comes...It may not even come close to your area whatsoever!!! This article just gives these overpaid morons with no common sense something ELSE to complain about

Posted by: DMVinsider | July 29, 2010 1:21 PM | Report abuse

That fierce storm just passed through us in Laytonsville. Just an eyeball observation, but it seems to still be growing on the back side(unfortunately down towards Rockville). This one was not as strong as the last one, but still powerful, torrential rains and an unbelievable light show.

Rockville, Silver Spring, College Park... take cover, it's strong.

Through this whole storm, they never stopped paving our road, and, surprisingly, we never lost pow

Posted by: dprats21 | July 29, 2010 1:31 PM | Report abuse

This segment of Capital Weather Gang has been brought to you by DMV diatribe. At DMV diatribe, we enjoying being capable of making people feel badly about themselves since 2005.

Posted by: authorofpoetry | July 29, 2010 1:37 PM | Report abuse

"This article just gives these overpaid morons with no common sense something ELSE to complain about" (DMVinsider 1:21pm)

CWG: Shouldn't this statement be considered a wee bit out of bounds... on a few levels? It doesn't bother me, I'm not overpaid. Can't vouch for the moron part, though. (And for Pete's sake, don't ask my wife.)


Posted by: dprats21 | July 29, 2010 1:54 PM | Report abuse

how nice. Wheaton just lost power. a little wind, some heavy rain. PEPCO- there's more to fixing power lines besides using just duct tape.

Posted by: bfgun | July 29, 2010 1:56 PM | Report abuse

Lots of thunder heard in Rosslyn. Winds just starting to pick up in advance of the front.

Posted by: marathoner | July 29, 2010 2:01 PM | Report abuse

Grey skies and sprinkles in Tysons.

Posted by: wp112310 | July 29, 2010 2:02 PM | Report abuse

Distant thunder here in Dupont Circle, and the sky's getting a bit dark.

Posted by: maralenenok | July 29, 2010 2:04 PM | Report abuse

Lost power again..haha...unbelievable. What a joke.

Posted by: bgaffney491 | July 29, 2010 2:05 PM | Report abuse

Light & moderate rain showers moving thru Manassas. No lightning/thunder or strong winds. Good, dump the rain & get that cool dry air in here ASAP!

Posted by: FIREDRAGON47 | July 29, 2010 2:07 PM | Report abuse

BGAFFNEY - Where are you located?

Posted by: authorofpoetry | July 29, 2010 2:14 PM | Report abuse

Nice storm starting up here in Oakton but I need the rain please:)

Posted by: SPS1 | July 29, 2010 2:14 PM | Report abuse

Its been raining in Van Ness for about 5 minutes. A rumbling of thunder here and there. Mentally willing the swaying gigantic tree outside of my office not to fall.

Posted by: Redial1 | July 29, 2010 2:16 PM | Report abuse

I work just near the Capitoal Building. A biblical downpour is about to hit. Any minute now. Skies to the south and east aren't bad yet but these things move in quickly.

Posted by: JefffromHuntington | July 29, 2010 2:16 PM | Report abuse

off Layhilll Road, near Glenmont

Posted by: bgaffney491 | July 29, 2010 2:17 PM | Report abuse

Just hitting Falls Church City now.....big drops but the wind is not what I expected would come with the wet. Grass needs a drink.

Posted by: tbva | July 29, 2010 2:18 PM | Report abuse

Glover Park; this appears to be a pretty average summer thunderstorm here. There was one really close lightning strike about 15 minutes ago.

Posted by: LouLewis | July 29, 2010 2:19 PM | Report abuse

somewhat heavy rain near union station

Posted by: madisondc | July 29, 2010 2:20 PM | Report abuse

I'm lucky, my power never gets knocked ou

Posted by: fallschurch1 | July 29, 2010 2:22 PM | Report abuse

Tysons overlooking the Beltway: Significant rain, low visibility, thunder and light winds.

Posted by: wp112310 | July 29, 2010 2:31 PM | Report abuse

downpour has hit, some thunder, but no lightning or wind, at least when I was near a window to see it.

Posted by: JefffromHuntington | July 29, 2010 2:34 PM | Report abuse

Pouring rain with lightning at 66 and Nutley.

Posted by: Gunga2009 | July 29, 2010 2:37 PM | Report abuse

Snow in LaPlata

Posted by: SA-Town | July 29, 2010 2:52 PM | Report abuse

Hurricane Nicole is approaching...

Posted by: Murre | July 29, 2010 2:58 PM | Report abuse

Looks like Southeastern Prince William got missed again, but I could be wrong. My grass could sure use a drink, that's for sure!

In other news, Calabash, NC is getting hammered again with storms. Small hail, 40 mph winds, the whole enchilada. I hooked into the NWS website for Wilmington courtesy of the CWG link to the local NWS. There goes another afternoon at Sunset Beach. :o/

Lesson learned: It pays to take the Cap Weather Gang wherever you go... :o)

Have a great day, and stay safe!

Posted by: southbridgemom | July 29, 2010 3:56 PM | Report abuse

@DMVinsider -- Wow I would have thought that DMV workers could find better places than weather geek comment boards to vent their hate for life from daily interactions with aggressive motorists! yeesh

Posted by: kolya02 | July 29, 2010 4:50 PM | Report abuse

The comments to this entry are closed.

 
 
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