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Posted at 3:30 PM ET, 06/20/2009

Forecast: Sticky, Sometimes Stormy Saturday

By Jason Samenow

Sunday not so stormy...

* Tornado Watch South and East of Metro Area until 8 p.m. *
* NatCast | Year Without a Summer | Sureness of Warming Skeptics *
* Outside Now? See Radar, Temps & More: Weather Wall *

EXPRESS FORECAST

Today: Mostly cloudy, 60% chance of storms. 85-89. | Tonight: 20% chance of storms early. 65-69. | Tomorrow: Partly sunny, 25% chance of showers. Low 80s | A Look Ahead

FORECAST IN DETAIL

Though we've experienced many stormy weekdays in recent weeks, the weekends have, by-and-large, been tranquil. Not so this weekend. A cold front is likely to fire up showers and thunderstorms today, some of which could be severe. Tomorrow's weather will be less volatile even if we can't rule out a few showers at times. Both days will feature temperatures in the 80s, with higher humidity today than tomorrow.


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 (Saturday): In between periods of rain and storms, it will be mostly cloudy, muggy day, with highs in the mid-to-upper 80s. Showers and storms are likely to affect the area in two batches. One batch of showers and thunderstorms moving in from the west will impact the metro region at times during the morning and possibly into early afternoon.

A second round of storms will probably develop (60% chance) late in the afternoon and early evening as the cold front pushes through. These storms could be strong, with heavy rain and damaging winds a possibility.Confidence: Medium

Thundercast:
Probability: 60%
Coverage: Scattered to Widespread

Tonight: Most thunderstorm activity is likely to wind down after 7 p.m. or so. The rest of the night will be partly cloudy and pleasant, with lows in mid-to-upper 60s (suburbs-city). Confidence: Medium-High

Keep reading for the forecast into early next week...

Tomorrow (Sunday): Father's Day will very likely be the better of the two weekend days. Expect partly sunny skies and lower humidity than Saturday, with highs in the low-to-mid 80s. A few showers could pivot through the region, especially in the afternoon, but odds are low (just 1-in-4). It will be breezy, with a wind from the north at 10-20 mph. Confidence: Medium-High

Tomorrow Night: Partly cloudy and seasonable, with lows 64-68 (suburbs-city). Confidence: Medium-High

A LOOK AHEAD

The start to the work week looks good. Both Monday and Tuesday should be partly to mostly sunny (and dry), with highs in the low-to-mid 80s, and overnight lows in the 60s.

By Jason Samenow  | June 20, 2009; 3:30 PM ET
Categories:  Forecasts  
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Next: Tornado Watch Mainly East of Metro Area

Comments

So those storms just about to cross from WVa to MD...it's 7:50 now. I am going to be outside from 11:30-sometime this afternoon. I'm not very great at judging how many hours away a line of storms is. If you are a great judge, do you think they will be through by 11:30, or just hitting right when I get outside?

Posted by: LaurainNWDC | June 20, 2009 7:51 AM | Report abuse

Um. Not Maryland. That would be Virginia. It's early and I just woke up.

Posted by: LaurainNWDC | June 20, 2009 7:54 AM | Report abuse

Looks to me like the main batch should be through, but there is more development to the west so there is probably a good chance your outing won't be completely dry. Good luck!

Posted by: bhfairfax | June 20, 2009 9:47 AM | Report abuse

The first line of showers broke up before it reached Montgomery County. Now there seems to be a second line developing in W. Virginia.

Posted by: MKadyman | June 20, 2009 10:03 AM | Report abuse

Thunderstorm moving into NW Montgomery.

Posted by: MKadyman | June 20, 2009 10:47 AM | Report abuse

TIME FOR SOME MUCH-NEEDED DROUGHT!!!

Yet another round of this crud...on Columbia Pike Blues Festival day! This is getting serious, now that a few by-now-likely-to-be-waterlogged "farmers" out in Augusta County are starting to hold our outdoor festivals hostage...Let's call in Al Gore to start fixing things up...since I'm starting to think that global warming has pushed the ITCZ "monsoon trough" north to the D.C. metro area from its normal summer position over the Panama Canal.

BTW, this won't affect my dance tonight, though lightning between 6 and 7 PM could certainly mess with my efforts to catch the bus or Metro to Dunn Loring.

Posted by: Bombo47jea | June 20, 2009 11:16 AM | Report abuse

Thunderstorm taking place in Stafford with VERY heavy rain.

I agree with you, Bombo. We need a drought!

Posted by: david_in_stafford | June 20, 2009 11:28 AM | Report abuse

At noon it's 72 and raining, so I really fail to see how its going to get into the high 80s today.

Does this lessen the chance of afternoon storms today?

Posted by: bdeco | June 20, 2009 12:00 PM | Report abuse

@bdeco

The sun is coming out after the midday showers/storms...so temps will climb into the 80s and scattered storms may develop again later...

Posted by: Jason-CapitalWeatherGang | June 20, 2009 1:10 PM | Report abuse

I'm going to go out on a limb and predict some extremely severe thunderstorms for later today - this heating that's going on now is crazy, and the humidity is downright unspeakable.

Posted by: fleeciewool | June 20, 2009 1:40 PM | Report abuse

Are thunderstorms still likely in the annapolis area this afternoon?

Posted by: snowlover | June 20, 2009 1:50 PM | Report abuse

Another round of t-storms coming through with more heavy rain.

Posted by: david_in_stafford | June 20, 2009 2:30 PM | Report abuse

Just received a tornado watch via e-mail. Not sure how many counties it includes.

Posted by: david_in_stafford | June 20, 2009 3:06 PM | Report abuse

The comments to this entry are closed.

 
 
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