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Posted at 3:30 PM ET, 07/19/2010

PM Update: Shower and storm threat yet again

By Ian Livingston

Sultry with rain risks through midweek, then even hotter

* Climate expert warns of blogosphere's divisiveness *
* Outside now? Radar, lightning, temps & more: Weather Wall *
* Consec days of 90+: 6; Total 90+: 36 (Apr: 2; May: 3; Jun: 18; Jul: 13) *

Despite midday clouds and spits of rain, we broke back into sunshine this afternoon and temperatures soared toward 90 and above. Now eyes turn to the west and northwest as new showers and storms begin to form and move this direction. We've seen a bit of a turnaround in our "rain luck" recently, so we'll be on the lookout for more showers or strong to severe storms into the evening. Hopefully for those around BWI, last night's wind gust (73 mph around midnight) just under hurricane force won't be repeated.

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: We run the risk of showers or storms through evening. Like recently, a storm or two could become severe with strong winds and heavy rain. The best odds of severe weather is from around the District and to the north and northeast. I'm cautiously optimistic the main rain threat will be over or ending by Screen on the Green time, but you may want to check back before heading out. Skies break to partly cloudy as the night progresses and lows reach the low 70s in the suburbs to mid-or-upper 70s downtown.

Tomorrow (Tuesday): We'll do it all again tomorrow, this time perhaps with less midday rain risk and more of a significant threat late in the day. Muggy conditions and partly cloudy skies lead to highs rising to near or above 90. A disturbance moving toward us from the west should spark another round of potentially strong to severe storms heading toward evening, and this one may be more widespread.

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

By Ian Livingston  | July 19, 2010; 3:30 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: Climate expert warns of blogosphere's divisiveness
Next: Forecast: A few storms, humidity, heat - repeat


Thanks for the SotG update! I won't make it down this week, but here's hoping it proceeds in a smooth and dry manner.

Posted by: random-adam | July 19, 2010 3:51 PM | Report abuse

HOORRAAYYY!! Pouring down buckets in Western Loudoun. First measurable rain in over a week. I knew mowing would do it!! Very windy as well. Low visibility looking out back windows. Now some lightening and major thunder that shook the house!!

Posted by: worldtraveler83 | July 19, 2010 5:03 PM | Report abuse

That big orange cell is right overhead and it is really coming down. Excellent!!

Does Bombo have a dance tonight?

Posted by: worldtraveler83 | July 19, 2010 5:05 PM | Report abuse

Passed by in 15 mins. Calm winds, temp dropped to 74 and I measured .83 of rain!! Blue skies popping out to the NW.

Posted by: worldtraveler83 | July 19, 2010 5:21 PM | Report abuse

Just walked to the grocery and back. Looks like it may be headed in the direction of Rosslyn. We could use a quick rain to clear the air a bit.

Posted by: marathoner | July 19, 2010 5:42 PM | Report abuse

Thunder & lightning, big wind gusts and it looks like the end of the world in Centreville VA.
Here we go again.

Posted by: FIREDRAGON47 | July 19, 2010 5:53 PM | Report abuse

Sitting here in Fairfax about to be hit with another severe thunderstorm. What are the chances of that? About 1 in 1, since it's happening daily. This one looks scary. Trees are already blowing sideways and the storm's not even here yet. I'm hearing sirens non-stop. I might have to hide in the bathtub. Batten down the hatches Dorothy!

Posted by: rwalker66 | July 19, 2010 5:57 PM | Report abuse

Again. For at least the tenth time this month a thunderstorm has split and not affected NW Montgomery County. The severe half is hitting Darnestown, Rockville, and points east. How long can this continue?

Posted by: MKadyman | July 19, 2010 6:03 PM | Report abuse

Well that storm turned out to be a dud for me. It weakened and split as it got close to Fairfax. Now it's just raining out there and there is a lot of blue sky out there while it's raining. Look out for rainbows.

Posted by: rwalker66 | July 19, 2010 6:23 PM | Report abuse

Precipitation missed rain here at all. Blue skies & sunny now.

Posted by: FIREDRAGON47 | July 19, 2010 6:38 PM | Report abuse

Not sure why the cell was warned, was pretty marginal. I guess there was a risk of downbursts. IAD went through the core and gusted just over 40mph. About 10 drops of rain here in NW DC but I've been hit a lot recently so I guess I was due!

Posted by: Ian-CapitalWeatherGang | July 19, 2010 6:39 PM | Report abuse

Not much rain in Rosslyn. A friend called to say there was a rainbow, but by time I got outside it was nowhere to be seen. And if anything it felt steamier than earlier.

Posted by: marathoner | July 19, 2010 7:37 PM | Report abuse

Arcola, VA - picked up at least 2.5 inch just now, plus 0.5 inch from last night. Unreal.

Posted by: LoudounGeek | July 19, 2010 7:54 PM | Report abuse

Another downpour in Dupont/Adams Morgan. This is the third one in 4 days.

Posted by: todd27 | July 19, 2010 8:22 PM | Report abuse

You all are happ(ier) to have this rain, right? Rain can usually break the heat a bit (sometimes steamier though). And our drought threat is much reduced lately. Relieved? I am. But wow LoudonGeek you got a ton! Todd27, I got that same great downpour here in Shaw/Convention Center area too!

ps- hope no one got caught outside at Screen on the Green?? :/

Posted by: Camden-CapitalWeatherGang | July 19, 2010 8:47 PM | Report abuse

I would think Screen on the Green was mostly missed or it all wrapped up before it got started, looked fringed by the first round and maybe some drips with the lone shower that developed over DC around sunset. Though it was a little dicey looking for a bit based on this flickr shot.

Posted by: Ian-CapitalWeatherGang | July 19, 2010 9:37 PM | Report abuse

No rain here today or yesterday... I mowed some of the lawn this evening so hope we get some rain tomorrow...

Currently 74.5 after a high today of 86.7 in the mtns east of Front Royal...

Posted by: spgass1 | July 19, 2010 9:46 PM | Report abuse

@marathoner Was it a double Rainbow?

Posted by: BBack | July 19, 2010 10:17 PM | Report abuse

Wish I knew. By time I got outside unfortunately there was nothing, except lots of nasty looking clouds to the east.

Posted by: marathoner | July 19, 2010 10:21 PM | Report abuse

Completely disgusted. Nothing from the afternoon heatup. Despite thunder, enormous thunderheads and a rainbow to the east. Some drops from this morning's whatever it was. We're getting set for another drought ...

Posted by: weathergrrl | July 19, 2010 10:55 PM | Report abuse

@worldtraveler83...Yes there was a dance tonight, but I no longer go to the Chevy Chase dances...more time spent in the deteriorating & expensive Metro system than on the dance floor. Got about a quarter to a third inch of rain here in South Arlington.

Tomorrow night is the BIG problem...Civic Assn. meeting before the Clarendon Ballroom dance...and already Sue Palka is ramping up the thunderstorm/severe weather threat for tomorrow evening!!! Wish this would's the sixth or seventh STRAIGHT dance night threatened by this dangerous weather...despite the "precipitation deficits" everyone [outside of Chantilly, Centreville, Reston, Sterling & Herndon] seems to be whining about!

Posted by: Bombo47jea | July 19, 2010 11:24 PM | Report abuse

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