Snow fell around the D.C. area, repeating Thursday's light coating.
Snow began to fall around 2 p.m. in the city, but it was a fast moving system that was east of D.C. by about 7 p.m.
About a half-inch to an inch of snow fell in D.C. and its suburbs. With high temperatures in the mid-to-upper 20s, the snow stuck immediately, causing slick conditions on untreated roads for the evening commute, .
At National Airport, flights were grounded during the snow as crews worked to clear and treat the runways, causing some delays.
AAA Mid-Atlantic urged drivers to slow down and use caution during their evening commutes.
The National Weather Service issued a winter weather advisory for much of the area through rush hour. Usually snowfall estimates of less than 2 inches don't warrant the advisory, but as with Thursday morning's advisory, Friday's was issued because the snow coincided with rush hour.
Icy roads remain a concern overnight as roadways wet from the snow could freeze overnight.
A winter storm watch was issued for Garrett County, Md., where three inches of snow was expected Friday, followed by up to four more inches overnight.
Federal agencies in the D.C. area were open Friday, but employees had the option for unscheduled leave or telework.
A few school districts announced in advance they would be closed again Friday, and many others -- including Montgomery and Fairfax counties -- had early dismissals.
High temperatures in the area should climb above freezing Saturday for the first time in several days, but the wind chill will make it feel like the upper teens or low 20s.
A warm-up will finally begin early next week, with afternoon temperatures well above freezing, melting much of the snow. The temperatures should stay above most of next week.
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