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Posted at 10:25 AM ET, 06/16/2009

Forecast: Another Atlantic Onslaught

By Matt Rogers

More damp ocean cooling on the way

* VORTEX2 Turns Heads | Later: Best of VORTEX2 Photos *


Today: Clouds increasing. 75-80. Tonight: Mostly cloudy. 59-62. | Tomorrow: Cool with clouds and rain. 68-72. | A Look Ahead


June heat has certainly been elusive. Even our "hot" days this month have only been in the 80s. Now, we are looking at another onslaught of cool Atlantic breezes setting up starting tomorrow and locking in through about Thursday. This means a weather pattern like we saw two weeks ago with plenty of clouds, showers, sometimes drizzle/fog, and much below normal temperatures. This maritime weather pattern should give ground by Friday as a warm surge works into the area to give us a run at a warmer muggy weekend (with thunderstorm chances, of course).

Temperatures: Current area temperatures. Powered by Weather Bonk. Map by Google. Hover over and click icons for more info. Click and hold on map to pan. Refresh page to update. See map bigger on our Weather Wall.

Today (Tuesday): Partly cloudy to completely cloudy skies at times today with highs only in the mid-to-upper 70s. Winds will have shifted to come from a more easterly direction so temperatures will feel a bit cooler than Monday's levels. Confidence: Medium-High

Tonight: Lots of clouds around with cool breezes once again. This natural air conditioning from the cool Atlantic ocean should keep energy needs low again at least. Low temperatures should range from 59-62. Confidence: Medium-High

Keep reading for the forecast through the weekend...

Tomorrow (Wednesday): A dreary day with the Atlantic-based flow continuing to feed in clouds, cooler weather, and an increasing threat of rain and/or drizzle. Look for highs ranging only in the upper 60s to low 70s throughout the area with a 70% likelihood of rain. Confidence: Medium

Tomorrow Night: More clouds, more winds from the east, and more shower opportunities should be expected. Lows should drop into the lower 60s with a 60% threat of those showers. Confidence: Medium


Thursday is probably going to be like Wednesday, the sequel, with still a prevailing onshore flow, showers, clouds, and cool weather. A warm front will begin attempting to push toward the area. Rain shower and drizzle chances are still high at about 70%. Temperatures may be able to inch up slightly higher toward the low-to-mid 70s. Confidence: Medium

Friday looks to be the day when the warm front punches north through the area, allowing temperatures to surge into the 80s on the back of winds coming from the south and southwest. The thought is that mid-to-upper 80s are reasonable along with still a 30% chance of afternoon/evening thunderstorms.

The weekend looks like a mixed story right now with a cold front approaching the metro area on Saturday. This means we could see temperatures spike into the upper 80s or even touch 90 in spots along with the potential for stronger afternoon and evening thunderstorms (keep an eye out for severe weather). The odds of storms are about 60% on Saturday. Sunday turns cooler behind the front, but we can't rule out some showers (30% chance). Look for highs in the upper 70s to near 80. Lows in the upper 60s to around 70 on Saturday morning and low-to-mid 60s Sunday morning. Confidence: Low-Medium

By Matt Rogers  | June 16, 2009; 10:25 AM ET
Categories:  Forecasts  
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This weather is getting very frustrating. Are we ever going to have some consistently sunny, warm (dare I say hot?) days this summer!?

Posted by: rumbly45 | June 16, 2009 9:47 AM | Report abuse

Hey Rumbly45, this may not be the summer for extended heat waves. Even when we do actually get hot (and I believe we will), the odds of a locked in extended period of it appears less likely than normal. -Matt Rogers

Posted by: MattRogers | June 16, 2009 10:21 AM | Report abuse

I received .70" of rain from about midnite to 12:45 a.m. this morning here in TP/SS. It poured for quite a while from one cell that popped up out of nowhere and then disappeared. No other rain within miles and miles on the radar. Bummer...

Posted by: steske | June 16, 2009 11:58 AM | Report abuse

Very bizarre being this long (LOL) without rain.

Posted by: wecndo | June 16, 2009 12:13 PM | Report abuse

Rather more cloudy today than I expected, with towering cumulus [congestus] threatening more precipitation.

Winter is relaxing its grip in Australia for now; even the national capital in Canberra is staying above freezing. Maritime influence accounts for the general lack of extreme cold in the Southern Hemisphere temperate zone. Generally only Antarctica gets extremely cold. Summit Station, Greenland [on the icecap] is one of the few areas in our hemisphere remaining below freezing, though RT TV reports that Anadyr, Siberia still expects a high of only 30F. Most other Siberian locales are now enjoying the brief Siberian summer.

Posted by: Bombo47jea | June 16, 2009 12:51 PM | Report abuse

Radar estimating some pretty heavy rain between La Plata and just south of DC last few hours. Over 2" estimated in some spots with these isolated slow-movers.

Posted by: Ian-CapitalWeatherGang | June 16, 2009 2:13 PM | Report abuse

I'll take this 'maritime' pattern over our usual summertime pattern ANY DAY!

Posted by: wecndo | June 16, 2009 2:54 PM | Report abuse

Very heavy rain a little while ago in Mount Vernon. I got .75 in the rain gauge in 40 mins.

Posted by: Etta- | June 16, 2009 3:10 PM | Report abuse

I hate this maritime weather. I need upper 90s with sun. And humidity too. That would be great!

Posted by: bastings | June 16, 2009 3:56 PM | Report abuse

I'll take this 'maritime' pattern over our usual summertime pattern ANY DAY!

You betcha!

Posted by: Axel2 | June 16, 2009 4:05 PM | Report abuse

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