Forecast: Some clouds now, big rains Fri. into Sat.
River flood risk looms
FORECAST IN DETAIL
By David Streit, CWG Meteorologist
This forecast is a wet one! The models over the past 24 hours have all been simulating 2 to 4 inches of rain to impact the area Friday through Sunday. This is a real "megastorm" with a circulation extending from the Plains to the East Coast. The main rains are not expected until Saturday when the system's primary energy will crank up winds from the east. We'll be closely monitoring the possibility of flooding on the Potomac, though the risk would have been worse if we hadn't managed to melt much of the snow downstream of the river's north branch.
Today (Thursday): Nevermind the onslaught of rain to come, today will be a pretty fine day. It will be mostly cloudy with occasional periods of sun but also the chance of a sprinkle. Highs will be in the low-to-mid 60s with light winds from the southeast. Confidence: Medium-High
Tonight: The evening will remain cloudy with a few sprinkles possible and mild temperatures. Only late at night will steady showers approach and move into the area. This band of showers is being generated by a low-pressure system still in Iowa! Winds from the east remain light. Confidence: Medium-High
Keep reading for the forecast through Monday....
Tomorrow (Friday): Morning showers are likely to taper off fairly quickly with the storm still too far away to sustain steady rains. Skies should remain mostly cloudy the rest of the day with more intermittent showers. Winds will be light in the morning but increase from the east to 10 to 15 mph during the afternoon. Highs should be mainly in the low 60s. Confidence: Medium
Tomorrow Night: Rain increases in coverage and intensity as the night progresses and winds hold from the east at 10 to 15 mph. Lows will still be mild with most areas in the low 50s. Confidence: Medium
Saturday will see the storm at its most intense with the potential for as much as 1 to 2 inches of rain during the day (with even some locally higher amounts and embedded thunder). Winds from the east will be brisk, blowing at 10 to 20 mph with an occasional gust to 30 mph. Despite the rain, highs should reach the low 60s. There's some question as to when the worst of the rains will taper. The most likely time is early evening, but it could extend later. Lighter, more intermittent rain is expected during the night with lows in the mid-to-upper 40s. Confidence: Medium
Sunday will be a little cooler but highs should still rise into the 50s. Winds shift from the northeast to coming out of the west later in the day at 5 to 15 mph. Lingering showers will be light and there's a chance clouds will break by afternoon. Confidence: Medium
Monday will start out mostly cloudy with a few sprinkles followed by a possible slow decrease in cloudiness. Temperatures will rise from the low-to-mid 40s in the morning to highs around the low-to-mid 50s by afternoon. Winds will be from the north at 5 to 15 mph. Confidence: Low-Medium
Posted by: --sg | March 11, 2010 5:13 AM | Report abuse
Posted by: crashinghero | March 11, 2010 6:14 AM | Report abuse
Posted by: eric654 | March 11, 2010 8:25 AM | Report abuse
Posted by: mmurphy70 | March 11, 2010 8:25 AM | Report abuse
Posted by: rodneysmall | March 11, 2010 8:52 AM | Report abuse
Posted by: bachaney | March 11, 2010 9:14 AM | Report abuse
Posted by: Ian-CapitalWeatherGang | March 11, 2010 9:26 AM | Report abuse
Posted by: CapitalWeatherGang | March 11, 2010 9:30 AM | Report abuse
Posted by: Joel_M_Lane | March 11, 2010 9:42 AM | Report abuse
Posted by: RosslynVA | March 11, 2010 10:29 AM | Report abuse
Posted by: waterfrontproperty | March 11, 2010 10:34 AM | Report abuse
Posted by: ah___ | March 11, 2010 10:40 AM | Report abuse
Posted by: Bombo47jea | March 11, 2010 11:10 AM | Report abuse
Posted by: Bombo47jea | March 11, 2010 11:24 AM | Report abuse
Posted by: Groff | March 11, 2010 12:21 PM | Report abuse
Posted by: dcazar | March 11, 2010 12:25 PM | Report abuse
Posted by: Ian-CapitalWeatherGang | March 11, 2010 12:36 PM | Report abuse
Posted by: mensan98th | March 11, 2010 1:37 PM | Report abuse
Posted by: esmerelda123 | March 11, 2010 6:06 PM | Report abuse
The comments to this entry are closed.