More snow expected Friday afternoon - DC News FOX 5 DC WTTG

More snow expected Friday afternoon

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AP - District of Columbia officials say the city's snow team is treating residential streets and monitoring major streets in anticipation of more snow.

District officials say the forecast calls for more snow Friday afternoon and night with accumulations of up to two inches. The city plans to deploy about 200 plows starting Friday afternoon.

A light snow that fell Thursday morning made commuting difficult in the Washington area. The snowfall prompted school closings and delays across the region, but federal agencies remained open.

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ACCUWEATHER - Snow, a wintry mix and the associated slippery travel will stretch over a broad area with the next storm from the Midwest to the interior South and much of the mid-Atlantic to end the week.

Enough snow to make for slippery travel is heading from Minneapolis to Detroit, Chicago, Cincinnati and Cleveland in the Midwest and from Pittsburgh to Roanoke, Philadelphia, Richmond and Washington, D.C., in the mid-Atlantic. New York City will be on the northern edge of the accumulating snow.

Enough wintry precipitation will fall for icy travel in Nashville, Chattanooga, Charlotte, Raleigh and Norfolk.

A broad area of coating to 3 inches of snow will stretch from northern Minnesota to the eastern part of the Ohio Valley, part of the Tennessee Valley, the central and southern Appalachians and on to the mid-Atlantic coast.

A few locations within this area will receive a bit more due to local effects and a banded structure to the shield of snow that often occurs with Alberta Clippers. Up to half a foot of snow will fall over the mountains of West Virginia, northwestern Virginia, western Maryland and southwestern Pennsylvania, due to orographic effects.

Because of the recent cold weather, much of the snow that falls will not melt on paved and concrete surfaces.

The snow will be dry and powdery in many areas, what meteorologists call a high-ratio snow. This simply means a small amount of moisture can lead to a moderate amount of snow. A tenth of an inch of water can produce 2 or 3 inches, instead of the more typical 1 inch for the same moisture in an average storm setup.

Farther south, enough warm air will stream in aloft, while cold air hangs on near the surface to bring a zone of sleet, freezing rain or a mixture containing snow, ice and plain rain.

A several-hour period of ice or a wintry mix will stretch from northern Arkansas and southeastern Missouri to southwestern Kentucky, northern and eastern Tennessee, northern Georgia, upstate South Carolina, a large part of North Carolina and the southeastern corner of Virginia.

The extent of the arctic air will force the storm south of much of northern upstate New York and New England. However, enough snow can fall to bring a small accumulation to southern New England.

Milder weather is forecast to return to the Midwest, South and Northeast briefly next week. However, the transition may come at a cost. A period of sleet and freezing rain is forecast for some locations.

Arctic air will return from the northern Plains to the Northeast just past the start of February.

The latest advisories and national and international forecasts can be found on

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