Possibility of two to four inches of snow.
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THURSDAY TO 3 AM EST FRIDAY... * WHAT...Snow. Total snow accumulations of 2 to 4 inches. Isolated higher amounts of around 6 inches are possible. * WHERE...Portions of north central and western Maryland, the Shenandoah Valley and the Highway 15 corridor in northern Virginia, and the eastern West Virginia panhandle. * WHEN...From 6 PM Thursday to 3 AM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening commute. * ADDITIONAL DETAILS...The heaviest snow is expected Thursday mid to late evening when snowfall rates of 1 inch per hour are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. When venturing outside, watch your first few steps taken on steps, sidewalks, and driveways, which could be icy and slippery, increasing your risk of a fall and injury. By The National Weather Service, Sterling, Va.