UPDATED: March 5, 2015 5:00 p.m.
LANHAM, Md. (WNEW/AP) — The National Weather Service has issued a Winter Storm Warning for the entire WNEW listening area until 7 to 9 p.m. Thursday as snow continues to hit the region.
The National Weather Service says snow accumulation by early afternoon Thursday included 7 1/2 inches in the Carroll County communities of Uniontown and Manchester, about 30 miles northwest of Baltimore.
Snowfall elsewhere ranged from about three inches in D.C. to about 8 inches in the mountains of Garrett County.
State police and highway officials report numerous accidents on interstate highways in Frederick and Washington counties, due to vehicles sliding on the slick surfaces.
The federal government, Maryland, Delaware and the District of Columbia closed offices and most schools in the region are closed. Some schools in Maryland and Virginia have announced they will be closed Friday as well.
WJZ Meterologist Marty Bass snow accumulations could reach 10 inches, along with some ice. The snow will end between 6 and 7 p.m.
Maryland Gov. Larry Hogan says residents should use their common sense and stay safe as a late-winter storm pounds the state with some of the heaviest snow of the season.
Officials say travel will be dangerous Thursday as roads will be covered in snow.
Maryland Department of Transportation’s State Highway Administration (SHA) says refreeze overnight Thursday into Friday is possible.
“As temperatures drop later tonight even treated roads may be icy and slippery, so travelers should remain alert and reduce speeds,” SHA Administrator Melinda B. Peters said. “Crews will continue to plow and treat roadways; however the best advice is to get to your destination and stay.”
Thursday morning brought substantial amounts of rain, followed by heavy snowfall throughout the day. Emergency traffic patrols continue to monitor Maryland interstates during the evening rush hours and overnight.
D.C.’s snow emergency plan began at 7 a.m. Thursday. Vehicles parked on snow emergency routes after that will be towed and fees total at least $370.
Click here to see a map of D.C. snow emergency routes.
SHA is telling drivers to stay off the roads, but to be cautious and allow plenty of time for travel if you do have to drive. They say even one abandoned car can cause a traffic jam.
Maryland is deploying six heavy duty tow trucks in the Baltimore-Washington region to assist disabled truck drivers.
SHA has already spent $95 million on winter operations this year and used 285,000 tons of salt.
Follow WNEW on Twitter