From the ABC 7 Weather team

Winter Storm Warning for the D.C. area tonight into Monday

March 16, 2014 - 07:53 AM
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Another winter storm will move into through region tonight causing delays and cancellations come Monday morning.


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Another winter storm is headed towards the D.C. area today, bringing the chance for snow starting late this afternoon and evening and ending Monday afternoon. Snow looks like it will enter the region between 5pm and 8pm from southwest to northeast. Even though temperatures will be well above freezing this afternoon, it should rapidly cool as precipitation enters as evaporational cooling takes over.

Winter Storm Warning from 7pm tonight through 2pm Monday

There is a slight chance for a start as rain but atmospheric profiles suggest colder air will be in place aloft, so even if it does start as a few showers, it should change to snow rather quickly. Snow should continue to fall through the night and into Monday morning, with the heaviest falling between 8pm and 2am.

0Z ECMWF Forecast Accumulated Snowfall

Right now, it looks like the heaviest snow will fall over the mountains southwest of D.C., closer to Luray, Harrisonburg, Charlottesville and Staunton in Virginia. Moderate snowfall totals are possible in the D.C. Metro itself, and less is likely the farther north you are to the Mason-Dixon line. This explains why areas north of D.C. area in a Winter Weather Advisory and areas in the Metro and south are in a Winter Storm Warning.

Snowfall accumulations will be anywhere from a few inches north and west of D.C. in the Advisory area, to 2-5 inches in the D.C. Metro, to 4-8 inches south and west of D.C. over the mountains. Just enough to make for a sloppy morning commute.

With temperatures in the mid 40s this afternoon for high temperatures, roadways will be well above freezing once precipitation starts, so roadways should mainly be wet until snowfall rates increase. Area roadways to the north where less snow is expected may even stay wet, which I don't think anyone will be complaining about!

A number of delays and closings will still be likely tomorrow so be sure to check our closings page often above. Snow should come to an end by Monday afternoon. Both Tuesday and Wednesday should see temperatures back into the 40s, so melting should get underway rather quickly with the high March sun angle.

Tune in to ABC 7 News and Newschannel 8 tonight for the latest updates!

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