From the ABC 7 Weather team

Washington D.C. Forecast: Nice Saturday, Wintry Mix Sunday?

March 22, 2013 - 03:43 PM
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Nice start expected for the weekend but a storm system will bring the dreaded wintry mix back to the area by late Sunday.

Tonight: Mostly Clear and Cold

Lows: Upper 20s to Low 30s | Wind: NW 5 m.p.h.

Saturday: Mostly Sunny, Pleasant

Highs: Low 50s | Wind: NW 6-10 m.p.h.

Sunday: Mostly Cloudy, Late PM Mix Possible

Highs: Low 40s | Precipitation: 50%

High pressure has provided sunny but cool conditions across the region and will continue to do so tomorrow. On Sunday though, things are going to change and not for the better. An area of low pressure will move northeastward through the TN Valley as a secondary area of low pressure may develop along the NC/SC coast.

These late season systems play havoc with the heads of forecasters because just about every element is borderline. Borderline between rain and snow. Higher elevations will have the best chance of significant snowfall but not sure how elevated your location will have to be to see that significant snowfall. At lower elevations and particularly through the urban corridor, snow or mixed rain and snow will be the form the precipitation takes.

Because of the time of year, angle of the sun, temperatures of the ground and roadways…all point to a mess but not a snow storm east of the Blue Ridge. As I said, everything will be borderline but I just don’t see this as a major impact event. We will watch it all weekend and update out forecast as conditions warrant. For snow lovers: I hope I am wrong and you get the heavy snow you want. For the rest of us….I think we will be just fine.

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