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Posted at 10:45 AM ET, 06/ 3/2010

Forecast: Heat sets stage for p.m. t'storms

By David Streit

Thunderstorms possible each weekend day

* Scientist sues media | CWG's 2010 summer outlook *
* Outside now? Radar, temps & more: Weather Wall

Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
5Summer stickiness has come too fast. I wish it would back down. P.M. storms could be rush hour pain.
Get tomorrow's 'Digit' on Twitter tonight


Today: Partly sunny & humid. 50-60% chance of p.m. showers & storms. Near 90. | Tonight: Scattered evening storms, then muggy. Upper 60s to low 70s. | Tomorrow: Partly sunny & humid. 30% chance of p.m. storms. Upper 80s. | A Look Ahead | Get Express Forecast by E-mail


By David Streit, CWG Meteorologist

The next few days see typical afternoon and evening thundershowers pop up as we have a good moisture feed from the Gulf of Mexico and just enough of a jet stream overhead to cause instability. Fortunately, it looks like the severe storm potential -- while a possibility today and tomorrow -- is mostly isolated. Temperatures run nearly 10 degrees above normal every day. We finally get a nice break in the sticky weather just in time to go back to work on Monday!

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

Today (Thursday): The day should start off mostly sunny and temperatures steadily climb from the 70s to 80s. Light winds give little cooling relief. Clouds bubble up by midday. An area of strong to severe storms (slight risk of severe, according to Storm Prediction Center) should move through the area late afternoon (50-60% chance) with some gusty winds and heavy downpours to threaten the evening commute. Confidence: Medium-High

Tonight: Additional thundershowers (40-50% probability) are possible in the early evening tapering off to scattered showers. Calm winds and readings falling quickly back to the 70s are comfortable. Confidence: Medium-High

Keep reading for the forecast through Monday....

Tomorrow (Friday): Early morning clouds scoot away quickly and lead to a fairly sunny day. Temperatures mount another quick ascent, peaking in the mid-afternoon in the upper 80s to low 90s. This should be enough to set off some more late afternoon thundershowers but more isolated and less intense. Rains should cover about 30% of the region. Winds remain non-existent. Confidence: Medium

Tomorrow Night: Skies clear early and evening temperatures moderate to the upper 70s to low 80s, accommodating outdoor diners. Overnight lows manage the upper 60s to low 70s. Confidence: Medium-High


A clear & pleasant evening in Dupont Circle Monday night. By CWG photographer Ian Livingston.

Saturday could end up being the hottest day of the weekend with mostly sunny skies until late afternoon. The result is upper 80s to low 90s for highs. Light breezes and moderate humidity keep the sweat factor high. Isolated thundershowers pop up near sunset with 30% coverage of the area. The one benefit of the showers -- for those who experience them -- is a faster cool down to the 70s in the evening. Confidence: Medium

Sunday starts up with a fresh wind for a change and temperatures in the 70s under mostly cloudy skies. Thundershowers are possible as early as mid-morning as a weak but insistent cold front pushes through by midday. The showers should push to the south and east by mid-afternoon. Rain chances are 60% from the front. Highs top out mainly in the low 80s in most areas. Clearing skies and drier air moving in by evening make a very pleasant end to the weekend. Confidence: Low-Medium

Monday makes us long for another long weekend! Morning readings in the 60s rise gently to the 70s. Sunny skies, light breezes and lower humidity feels dandy. Highs reach a seasonable peak in the low 80s. Confidence: Medium

By David Streit  | June 3, 2010; 10:45 AM ET
Categories:  Forecasts  
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Well, we got a brief dip in the humidity yesterday. But dew point is back up to a moist 70 today at Reagan National. -Dan, CWG

Posted by: CapitalWeatherGang | June 3, 2010 10:41 AM | Report abuse

Seems the "severe threat" might not be quite as extreme as earlier predicted for this afterrnoon--the storms are most likely between 4 pm and 11 pm rather than the early afternoon. The cold frontal passage seems to be late rather than early and the front may take its time moving through--giving us a rather extended [three-day] threat for unsettled weather rather than a sharp severe outbreak early in the afternoon as earlier forecast.

The likelyhood for drier air seems now to be pushed back to Sunday/Monday rather than over the weekend. There's no sign yet of the drier summer predicted in the Outlook yesterday. That may have to wait until later this month.

Posted by: Bombo47jea | June 3, 2010 12:13 PM | Report abuse

The Storm Prediction Center disagrees. We should have a severe thunderstorm watch box up by 1pm:

Posted by: MattRogers | June 3, 2010 12:24 PM | Report abuse

Something tells me I should come up with a viable 'plan b' for Sunday. We are set to have some of my daughter's friends (and hopefully some family as well) over about 5pm to grill hamburgers/hot dogs for an early 17th birthday party for my daughter. I don't think southbridgedad would appreciate my asking him to grill in thundershowers...

Posted by: southbridgemom | June 3, 2010 8:46 PM | Report abuse

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