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Posted at 3:30 PM ET, 09/24/2008

PM Update: Beautiful Stretch of Weather Ending

By Ian Livingston

Conditions go downhill on Thursday

*High Wind Watch in effect Thurs. for higher terrain to the W and NW*
*Gale Warning for Tidal Potomac, Chesapeake Bay Thurs. into Fri.*
*Coastal Flood Watch in effect Thurs. along Bay, Eastern Shore.*

Clouds: Latest mid-Atlantic infrared satellite loop, courtesy Unisys. Click here to expand. Refresh page to update.

This pleasant weather had to end sometime, and the beginnings of that end are happening this afternoon. As temperatures generally reach the low 70s, high clouds are beginning to stream in across the area while low pressure organizes off the Southeast coast. Get out and enjoy this evening, the next few are looking unsettled.

Tonight: High clouds of this evening will thicken and lower overnight as winds begin to increase out of the northeast. Lows should be a little warmer than last night with clouds and winds on the increase, mid 50s in the north and west suburbs to around 60 in the city or southeast should do it.

Tomorrow: During much of the morning it will be mostly cloudy, increasingly windy, and still dry. By midday, rain chances will go up, and most if not all the area will see rainfall by afternoon. Winds sustained around 15-25 mph will be accompanied by occasional gusts of 40 mph or higher during the day and into the evening; even stronger winds are possible in the mountains and near the shoreline. Highs should top out in the quite cool low-to-mid 60s across the area.

Many locations will see 1"+ of rain, with some places approaching 2"+ along and east of I-95, through tomorrow night as showers continue into Friday.

See Dan's full forecast through the weekend and NatCast for tonight's game.

By Ian Livingston  | September 24, 2008; 3:30 PM ET
Categories:  Forecasts  
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Next: NatCast: Stormy Season Finale

Comments

NHC has the low off the coast of South Carolina on the verge of becoming a tropical storm and expects "winds to hurricane force well to the north and northwest of the center." In other words, here.

Posted by: Brian in Alex | September 24, 2008 4:21 PM | Report abuse

what are the odds of no rain from 11am-1pm on Saturday in Potomac? I have about 15 4-year-olds and a pony coming for a birthday party! Argh!!!

Posted by: marlee | September 24, 2008 5:31 PM | Report abuse

This could be interesting! Any chance the wind/rain forecast could go up as we learn more about TD#1?

Posted by: Laura in NWDC | September 24, 2008 5:57 PM | Report abuse

a vury intrestin situation indeed i do say

Posted by: Period | September 24, 2008 6:44 PM | Report abuse

The NHC at the moment sounds pretty bearish on the storm's formation prospects. Here's their latest analysis:

THE LOW PRESSURE SYSTEM CENTERED ABOUT
250 MILES SOUTHEAST OF WILMINGTON NORTH CAROLINA HAS NOT ACQUIRED
TROPICAL CHARACTERISTICS. THE DATA FROM THE AIRCRAFT ALSO SHOW
THAT THE STRONGEST WINDS ARE WELL REMOVED TO NORTH AND WEST AND ARE
LARGELY UNRELATED TO THE SMALL CIRCULATION SAMPLED BY THE AIRCRAFT.
THIS STRUCTURE IS MORE CHARACTERISTIC OF AN EXTRATROPICAL WEATHER
SYSTEM. HOWEVER...THERE IS STILL THE POTENTIAL FOR THIS SYSTEM TO
BECOME A TROPICAL OR SUBTROPICAL CYCLONE TONIGHT OR THURSDAY AS IT
DRIFTS WESTWARD.

I feel that this storm's effects are going to be rather weak in our area, with wind gusts and rainfall not even approaching what Hanna produced.

Posted by: mcelaNed | September 24, 2008 9:24 PM | Report abuse

The latest NAM shows the majority of the rains holding off until later in the day on Thursday...does the team agree on this?

Posted by: Chase | September 24, 2008 10:14 PM | Report abuse

The NAM doesn't sure significant rainfall here until late in the evening tomorrow. Is the system falling apart or just slowing down?

Posted by: Phil | September 24, 2008 11:00 PM | Report abuse

Most importantly, will this affect the Nats final home game tomorrow? 50% off in team store? Fireworks? Fan appreciation? Oktoberfest party under the rooftop tent before game? I would imagine MLB would flat out cancel the game if the weather is too bad since neither team has a chance of postseason play.

Posted by: misschatter | September 25, 2008 12:09 AM | Report abuse

Sue Palka & Sterling seem to think we have so much dry air around here that precipitation totals might be somewhat less than earlier forecast. Even so, I'm not sure I like what "Dancewrecker" has in store for us Friday, though the worst wind could be over for us by then.

Posted by: El Bombo | September 25, 2008 12:10 AM | Report abuse

The comments to this entry are closed.

 
 
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