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Posted at 1:50 PM ET, 07/26/2009

Forecast: More Swelter. More Storms, Too?

By Brian Jackson

* NatCast | Outside Now? Radar, Temps & More: Weather Wall *
* Moon & Weather | NASA Tweetup | Humidity Misconceptions *


Today: More clouds than sun. 50% chance of p.m. storms. 87-90. | Tonight: Shower/storm early? Mostly cloudy, sticky. 68-72. | Tomorrow: Mostly cloudy. 40% chance of p.m. storms. Mid-to-upper 80s. | A Look Ahead


Here's the deal: Yesterday evening turned out a little stormier than we anticipated -- enough to zap power in parts of the area. And now, a pesky cold front approaches the area today and stalls out overhead, giving us chances for mainly afternoon and evening storms through the next several days. Some typical summertime storm threats to go with seasonable warmth and humidity.

Radar: Latest regional radar loop shows movement of precipitation over past two hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Sunday): I don't expect it to be quite as hot as yesterday -- highs in the upper 80s to near 90 -- but with more clouds and less of a breeze it may feel a bit stickier. It won't be completely gray though, and any sun that does shine through could help fuel afternoon/evening showers and thunderstorms (50% chance) ahead of an approaching cold front. Beware some strong winds and hail in any storms. Outside of storms, winds will be mainly from the southwest at 5-10 mph. Confidence: Medium

Probability: 50%
Coverage: Scattered

Tonight: We're in for another warm and muggy night across the area, so take relief in any storms that last into the evening (30% chance). Overnight, expect mostly cloudy skies and humid conditions with lows near 70. Winds will continue out of the southwest around 5 mph. Confidence: Medium

Keep reading to find out if storm chances stick around...

Tomorrow (Monday): Not exactly the way we'd like to start the week. A fair amount of clouds overhead will likely limit our glimpses of sun. The atmosphere will still be juicy, so plan for the possibility of another round of afternoon/evening showers and thunderstorms (40% chance). Highs should be in the mid-to-upper 80s and continued humid. Confidence: Medium

Tomorrow Night: No use in trying to beat around the bush -- expect another warm and muggy night. Thunderstorm chances should diminish during the evening as skies remain mostly cloudy and overnight lows again only dip to near 70 for most. Confidence: Medium


If our weather this week were an iPod, we'd definitely be stuck on repeat. Tuesday and Wednesday bring more of the same. At least it's an active pattern so that weather weenies like me can enjoy it. Chances for afternoon/evening storms continue around 40%, and we'll remain sticky with highs in the upper 80s to near 90 with maybe a bit more sun than Sunday and Monday. Confidence: Medium

By Brian Jackson  | July 26, 2009; 1:50 PM ET
Categories:  Forecasts  
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Next: Severe Thunderstorm Watch Issued Into Evening


West Springfield, storm total last night = 0.22"

Posted by: bikerjohn | July 26, 2009 8:39 AM | Report abuse

N. Stafford storm total last night = 0.87" within a half hour.

Posted by: david_in_stafford | July 26, 2009 9:14 AM | Report abuse

we got nearly half and inch in New Baltimore in storm that whipped through around 6,6:30, but the real deal was to the south, lots of thunder. We could hear it for nearly half an hour!

Posted by: weathergrrl | July 26, 2009 9:46 AM | Report abuse

Considerable rain last night around Dunn Loring and Glen Echo...What's going on...we're not supposed to be getting severe weather two days in a AugustaJim messing with me again or trying to mess with my afternoon hike??? Betcha the storms find a way to BYPASS us this afternoon.

Incidentally we were NOT supposed to get the rain was supposed to all come in least that's what all the "experts" were saying. Yesterday was supposed to have been a hot but storm-free day...what happened???

Posted by: Bombo47jea | July 26, 2009 11:39 AM | Report abuse

New discussion for severe weather watch possibility over next few hours.

Bombo, there was a lot of instability yesterday without as much going on above to support widespread severe weather. Sometimes those troughs coming out of the mountains just fall apart coming in.. the heat/sunshine of the day seemed to be enough to keep them going. I was down on the mall for it, was not terribly intense but interesting to see everyone clear out over a short period.

Posted by: Ian-CapitalWeatherGang | July 26, 2009 1:48 PM | Report abuse

Just outside Fairfax City, we got just under 1/2" of rain from the 7:30pm-ish storms yesterday; the rain later in the evening brought only about another 1/4". The storms a couple of days ago brought us around 1.5" by the rain gauge out in the garden.

Posted by: exerda | July 26, 2009 2:47 PM | Report abuse

Here's hoping the thunderstorm doesn't mess with me. I'm sooo looking forward to flying home out of New York at 5:30 and arriving in Reagan National at 6:40 pm. Yikes. Never flown into a thunderstorm. Yes, I'm a woos.

Posted by: jhbyer | July 26, 2009 3:30 PM | Report abuse

Hubby is driving back to No Va from Pa on 270, was raining cats and dogs and...there was a tree that had come down in the road up north of Clarksburg, Md.

Posted by: tbva | July 26, 2009 7:04 PM | Report abuse

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