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Posted at 3:00 PM ET, 06/10/2008

Severe Storms to Sweep Away Heat

By Ian Livingston

Harsh Storms in Some Areas; less humid Wednesday

ALERTS

9:05 PM: A Severe Thunderstorm Warning has been issued for portions of Anne Arundel, Prince George's, Montgomery and Howard counties until 9:45 p.m. Watch out for dangerous lightning, strong gusty winds and some hail with this storm.

8:45 PM: A new Severe Thunderstorm Warning has been issued for eastern Fairfax County, Alexandria, Arlington and the District until 9:45 p.m. Penny-size hail and winds to 60 mph are possible with this storm. A Severe Thunderstorm Warning is now also in effect for Anne Arundel County until 9:30 p.m.

Please comment with storm reports from where you are...

Refresh page to update alerts above. Also in this post, see our Severe Weather Tracking Station below for current radar and severe warnings as they are issued by the National Weather Service, and see out full forecast below that.

Severe Weather Tracking Station
Warning Text: DC | MD | VA
Radar: Latest D.C. area radar loop from Weather Underground. Click here to zoom. Refresh page to update.
LWX Warnings
Warnings: Severe warnings from the National Weather Service. Automatically reloads every minute (most browsers).

FORECAST

*Severe Thunderstorm Watch until 10 p.m. | Regional Radar View*
*Heat Advisory in effect until 8 p.m.*

We haven't seen four straight days above 95 at National Airport since August of 2006, until this stretch of hot weather. Fortunately, today is the last day of extreme heat, and it may end on a stormy note. Highs are now climbing through the mid and upper 90s in most places as storms build to the west.

Afternoon and evening: Thunderstorms are developing to our west and will spread east late this afternoon and early evening. The most likely time for storminess in the metro region is between 6 and 10 p.m. The main threat from storms will be wind damage and large hail -- a repeat of last Wednesday is not anticipated.

Tonight: Most of the storminess should be clearing the area around midnight. In its wake, expect clearing skies and increasing winds out of the north. These winds will usher out humidity and usher in more pleasant, though still warm, conditions. Expect lows to drop to right around 70 in D.C. and down into the mid and upper 60s in the suburbs.

Tomorrow: When you step outside tomorrow you will notice much less humidity, and a nice breeze from the north gusting to around 25 mph at times. Mostly sunny skies will later lead to temperatures right around or just above seasonal norms, and lower than recently. Highs should top out in the mid to upper 80s across the area as winds slowly slacken through the day.

See Matt's cooler forecast through the rest of the week and weekend. Keep reading for expired alerts.

EXPIRED ALERTS

8:10 PM: The Severe Thunderstorm Warning for Fairfax County has expanded east into the District, south central Montgomery County and central Prince George's County and is in effect until 8:45 p.m. In addition to strong winds and some hail (up to 0.75" diameter hail has been reported with this storm), lookout for dangerous lightning and heavy rainfall with this storm.

7:45 PM: A Severe Thunderstorm Warning has been issued for Fairfax County until 8:30 p.m. Locations in the path of this storm include Burke, Springfield and Annandale. The storm should move through these areas in the next half hour and then towards Arlington and into the District between about 8:15 and 9:00 p.m. Wind gusts to 60 mph and some small hail are possible with this storm.

6:45 PM: Severe Thunderstorm Warnings have just been issued for Prince William and Fauquier counties until 7:30 p.m. Small hail and wind gusts to 60 mph are possible with these storms. This storm will likely move towards Fairfax County and the District between 7:30 p.m. and 8:30 p.m. but is somewhat small and isolated and will probably not affect everyone.

5:45 PM: As the line of storms north of town advances to the northeast, a Severe Thunderstorm Warning is now in effect until 6:30 p.m. for eastern Howard, eastern Carroll and Baltimore counties, including Baltimore City. Hail to the size of nickels and wind gusts to 70 mph are possible with these storms. Stay indoors and away from windows until the storm has passed.

5:25 PM: A Severe Thunderstorm Warning continues in effect, now until 6:15 p.m., for Frederick, Montgomery, Loudoun and now western Howard counties as an area of storms capable of producing dangerous lightning, heavy rain, hail to the size of nickels and wind gusts over 60 mph moves slowly to the northeast through the warned areas during the next hour. Thus far, these storms are tracking north of the Beltway.

4:25 PM: A Severe Thunderstorm Warning is in effect for northwestern Montgomery, southern Frederick and much of Loudoun counties until 5:15 p.m. Frequent lightning, heavy rain, hail to the size of quarters and wind gusts to 60 mph are possible with this area of storms, which should pass through the warned areas during the next 45 minutes or so. Locations impacted include Germantown, Damascus and Leesburg.

By Ian Livingston  | June 10, 2008; 3:00 PM ET
Categories:  Forecasts  
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Next: Update: Severe Storm Threat Fading

Comments

Severe Thunderstorm warnings for Hardy, Hampshire, Shenandoah, and Frederick (Va). counties. They look like they are heading northeast.

Posted by: Murre | June 10, 2008 3:34 PM | Report abuse

I'd love to go home to decrease the chances of driving in the middle of a severe t-storm, but the bad accident at the Woodrow Wilson bridge has just put a damper on those objectives. Hope the storms aren't too bad.

Posted by: annoyed | June 10, 2008 3:37 PM | Report abuse

These storms are just blowing up. I don't think I've ever seen them blow up so quickly...(of course, I've only been around since 1991 and started watching the radar regularly like I do now about 7 years after that, but still... :P )

Maybe the really bad stuff will miss us completely and we'll get a nice, gentle thunderstorm. HA! How's that for wishful thinking?

Posted by: weatherdudeVA (Lake Ridge) | June 10, 2008 3:54 PM | Report abuse

just a question.........the storms on the radar appear to be moving towards the NE will they get picked up by the front and then change direction? That's a nasty looking cell on the other side of the mountains in Northern Maryland could that ultimately be headed for Montgomery County?

Posted by: patpur | June 10, 2008 4:16 PM | Report abuse

Patpur-- The storm motion is more to the northeast -- which is taking the cell from Loudoun over northwest Montgomery Co now. This should mainly continue this evening so best place to look for approaching storms is to the southwest.

Posted by: Capital Weather Gang | June 10, 2008 4:46 PM | Report abuse

Like others, I too was wondering if the radar movement we are seeing suggests a decreased likelihood of storms. Everyone will scoff, but we need some rain - these hot days are baking our damaged soils.

Posted by: Southside FFX | June 10, 2008 4:48 PM | Report abuse

I'm pretty sure this will miss DC altogether.

Posted by: Thinking One | June 10, 2008 5:00 PM | Report abuse

There's a pretty good one heading NE from Culpeper now, should be a direct hit on the District if it says on course.

Posted by: Max | June 10, 2008 5:06 PM | Report abuse

No, that'll pass to the west I'm pretty sure.

Posted by: Thinking One | June 10, 2008 5:10 PM | Report abuse

wow we just had a storm blow through here the worst ever the wind i would guess 70mph torrential rain and small hail so glad its over at one point i started to gather up everyone and go to the basement

Posted by: deve in madison va | June 10, 2008 5:22 PM | Report abuse

I remain bullish regarding the DC area's chances for rain tonight. Yes, the storms are currently to our west, but this pattern has been shifting east all afternoon--and little storms have already begun to crop up to our southwest. I would guess that Fairfax County gets hit in the next 120 minutes.

Posted by: mcleaNed | June 10, 2008 5:40 PM | Report abuse

Posted by: mcleaNed | June 10, 2008 5:42 PM | Report abuse

The front has arrived here in Sykesville.
Lights flickering and trees bending.

Posted by: JMR1 | June 10, 2008 5:43 PM | Report abuse

Nice outflow boundary from storms to the northwest moving into DC now. Should cool things down a bit.

Posted by: Ian, Capital Weather Gang | June 10, 2008 5:55 PM | Report abuse

It has now clouded over in Silver Spring, and is intermittently breezy.

Posted by: Murre | June 10, 2008 6:17 PM | Report abuse

Why, at 6:50 PM has Accuweather not updated their Metro radar for over an hour? That is outrageous....there are some serious storms just north and northwest of the city.

Posted by: Mike | June 10, 2008 6:53 PM | Report abuse

not very impressed with thunderstorms this evening.

Posted by: josh | June 10, 2008 6:59 PM | Report abuse

Mike:
Go to www.wunderground.com and click NexRAD radar link then select the white cross that's above DC. Zoom in, and set it to slow loop over 6 frames. It's far better than accuweather -- updates every 4-6 mins, much more detailed, lots of options, etc.

And even better is the interactive one:
http://www.wunderground.com/stationmaps/gmap.asp

Posted by: Wrinkle | June 10, 2008 7:22 PM | Report abuse

Mayday! Mayday! Potent storm bearing down on Mclean.

To the observation tower!

Posted by: mcleaNed | June 10, 2008 7:47 PM | Report abuse

Looks like we've got one of these storms headed right for Merrifield. Dark clouds, thunder, lightening have gotten progressively closer very quickly over the past 15 mins.

Posted by: ~sg | June 10, 2008 7:54 PM | Report abuse

Thunder growing louder in Glover Park. Looks like storm might be intensifying a bit, heaviest looks to target far NW DC and just north.

Posted by: Ian, Capital Weather Gang | June 10, 2008 8:01 PM | Report abuse

nice storm in burke lots of wind, rain

Posted by: josh | June 10, 2008 8:02 PM | Report abuse

Alert the troops! Danger danger! Off in the wild distance I can hear thunder heading this way.

This means that is actually cool enough outside to open the windows...the temperature has dropped below 82.

Posted by: Murre | June 10, 2008 8:04 PM | Report abuse

Mildly impressive hail in Vienna around 8 p.m., but it only lasted a couple of minutes.

Posted by: BD | June 10, 2008 8:05 PM | Report abuse

"heaviest looks to target far NW DC and just north" ... and Silver Spring is just beyond that zone.

The thunder is growing louder and more frequent. It is not dark here so I continue to rejoice in the sounds of outside through the open windows.

Posted by: Murre | June 10, 2008 8:07 PM | Report abuse

All of DC and areas just north/south under warning now. Disorganized shelf cloud passed overhead here.

Posted by: Ian, Capital Weather Gang | June 10, 2008 8:09 PM | Report abuse

pretty nice sized hail in mclean about 5 minutes ago. only lasted about 30 seconds though..

Posted by: Dan in McLean | June 10, 2008 8:10 PM | Report abuse

No rain here in Kingstowne, but thunder... only reason I knew was my dog started going crazy ten minutes ago, and won't leave my side.

Posted by: Tim, Alexandria, VA | June 10, 2008 8:12 PM | Report abuse

Holy Cow! What a rager. Sun starting to break through the clouds but still hearing thunder. Whoopee!!

Posted by: Dan in McLean | June 10, 2008 8:14 PM | Report abuse

Lights went out for a few seconds in Brookland. Lots of thunder. thought it missed us. Was hoping for cooling off without a storm. Off to reset the clocks.

Posted by: ep | June 10, 2008 8:22 PM | Report abuse

Hail in Potomac. Can't remember a worse stretch of weather.

Posted by: Jamie Y (Potomac) | June 10, 2008 8:22 PM | Report abuse

Rose Hill, VA here.

Plenty of thunder/lightning, but no precip.

Posted by: Mason | June 10, 2008 8:24 PM | Report abuse

Looks like Bethesda and Wolf Trap just got hit hard with a "purple center" storm. How do I know this? Wrinkle's awesome interactive radar link.

If you haven't already, check this out:
http://www.wunderground.com/stationmaps/gmap.asp

Posted by: mcleaNed | June 10, 2008 8:24 PM | Report abuse

The storm is still progressing to the northeast through Silver Spring with lightning that has usually been well over a mile away (so far). We had a little rain, which has just picked up in intensity again.

McleaNed, your link was impressive.

Posted by: Murre | June 10, 2008 8:41 PM | Report abuse

We just had a pretty scary thunderstorm pass through here. Wind bending the trees and no rain about 8 pm....then about 8:30 all hell broke loose. We actually thought maybe we'd have to head down to the basement. Heaviest rain we've ever seen. Couldn't see across to the neighbors house...and lots of WIND!!

Now, at about 8:40 pm, it seems to be traveling away from us.

Posted by: Lorton Lookout | June 10, 2008 8:43 PM | Report abuse

Annandale. Was that it? Compared to last week, what a blessed woos of a storm, small s. Birds are singing loudly. Kitty wanted out and she went. Thank you, weather gods and Weather Gang. Dare I open a window to enjoy the cooool breeze?

Posted by: jhbyer | June 10, 2008 8:44 PM | Report abuse

Tons of lightning, thunder, and howling wind here in Springfield for a solid 20 minutes now (still moving through)

Posted by: Mark | June 10, 2008 8:45 PM | Report abuse

Very impressive storm just passed over Springfield. Tremendous amount of lightning -- several trees around us got whacked! Heavy rain but no appreciable hail.

Now it's about over, I want to go outside -- I've almost forgotten what sub-80 degree temperatures feel like!

Posted by: Wrinkle | June 10, 2008 8:47 PM | Report abuse

Finally have some impressive lightning in NWDC. I was afraid the storm had broken up so much that we wouldn't see this.

Hooray!

Posted by: Laura in NWDC | June 10, 2008 8:49 PM | Report abuse

Here in Fairfax City we had a pretty decent storm move through. About 5 minutes of hail, the largest were about 1/2" diameter. Only one big burst of wind and it was shadow of this past Wednesday's downburst. Still, my house is still not healed from the oak that fell on it last Wednesday so no more rain for now!

Posted by: Jeff in Fairfax City | June 10, 2008 8:49 PM | Report abuse

Uh, oh. Annandale. Kitty came flying back back inside, followed by HORRIFIC ripping lightning. For safety's sake, need to stop typing.

Posted by: jhbyer | June 10, 2008 8:50 PM | Report abuse

Tons of lightening in Alexandria. Almost lost power, but it held on. No rain yet.

Posted by: alexandria | June 10, 2008 8:51 PM | Report abuse

Just as I wrote that, drops began to fall.

Posted by: alexandria | June 10, 2008 8:51 PM | Report abuse

incredible CG lightning... seeing transformers go up west of here (green flashes)

Posted by: Ian, Capital Weather Gang | June 10, 2008 8:53 PM | Report abuse

In the District at 17th and R - m&m size hail just started to fall at 9:00 exactly.

We had about 10-15 minutes of intense rain, then it just stopped (like the eye of a hurricane). Then it got really windy, bad thunder and lightning and hail started to fall.

Posted by: Todd | June 10, 2008 9:02 PM | Report abuse

The lightning is striking like mortar shells. I only hope that damage is not too widespread in Alexandria, Arlington and Falls Church. McLean just escaped the storm.

Posted by: mcleaNed | June 10, 2008 9:07 PM | Report abuse

Still a fair bit of thunder and some rain in Silver Spring. Light winds as well. I am happy that is all we've gotten so far.

Posted by: Murre | June 10, 2008 9:10 PM | Report abuse

report from chinatown:

1st wave at around 8:20: heavy rain and about 30 secs of hail, followed by relative calm, was nothing compared to...

2nd wave at around 8:50: tons of (painful) hail, extremely heavy rain and one of the best lightning shows i've seen in a while. intense. not like last Wed, but i'd be surprised if people didnt lose power tonight.

now: still heavy lightning and thunder to our north, and moderate rain here.

capwx gang: anything else in store for us tonight?

Posted by: Rishi | June 10, 2008 9:13 PM | Report abuse

Live in Arlington Courthouse in a high rise -- incredible show. Cloud to ground lightning striking in DC, over the river, and down around Route 50 heading to the TR bridge. Storm appears to be moving off to the south east. Fantastic.

Posted by: Courthouse | June 10, 2008 9:13 PM | Report abuse

Fairfax County and friends: keep a close eye on a cell just north of Culpepper. It's headed in our direction and looks like it means business.

Posted by: mcleaNed | June 10, 2008 9:25 PM | Report abuse

The community sustained some moderate damage from what appears to be straight line winds though trees were snapped off in two distinct directions. I have probably lost for sure 2 but maybe 4 large trees as they were "topped" anywhere from 10 to 20 feet up -- sad thing is that they were healthy. Neighbors have a tree in their sunroom but no large trees have fallen onto anyone's house or cars.

Backyard shade garden now has some more sun. I wanted a bit more diversity in the tree selection but not all at once.

Posted by: Point of Rocks | June 10, 2008 9:28 PM | Report abuse

Major lightning and hail. The winds have died down a bit, but for a while there the house was vibrating, shaking. Ah, the perks of an older home ...

Is this the last batch, or are more on the way?

Posted by: College Park | June 10, 2008 9:32 PM | Report abuse

Lost power for about 5 minutes. Just lightening and light rain. Power is back, but no cable. good thing I got the weather radio with the light since the house flashlight was dead. I was not going out to the car to get that flashlight.

Posted by: ep | June 10, 2008 9:34 PM | Report abuse

ITA, mcleaNed, it has to work it's way through my neck of the woods first (fauquier)!

Posted by: Weathergrrl | June 10, 2008 9:35 PM | Report abuse

That large morass of yellows appears to be intensifying as it moves up I-95. Great. More.

Posted by: alexandria | June 10, 2008 9:36 PM | Report abuse

18,000 customers in Northern Virginia without power, according to Dominion's website. Here's a link with a nice graphic (clickable) and a shortcut to a list of blackouts by region: http://www.dom.com/news/outage_map.jsp

Posted by: mcleaNed | June 10, 2008 9:39 PM | Report abuse

Wow. On round 3 here; lightning and thunder so close my house shook. Like I felt the sofa under me rumble. That was the third one of the night that was very close (ie, almost instant lightning-thunder).

Overall, a very lightning-charged series of storms. Decent winds, variable rainfall rates, no hail that I've seen or heard.

Despite my love of storms, I might not be sad to see this group pass...

Posted by: kate in bowie | June 10, 2008 9:51 PM | Report abuse

Still have power here in Merrifield after two storms moved through - or nearby, actually, as I didn't get the impressive CG lightening and winds others are reporting. But, it sounds like one more round may be on the way...my chocolate supplies can't take this.

Posted by: ~sg | June 10, 2008 10:12 PM | Report abuse

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