With snow in the forecast for the evening, the federal government will be closing at 1 p.m. Per the Office of Personnel Management, all workers will be released four hours earlier than their normal departure times, and all must hit the road by 1 p.m.

Though the temperatures were above freezing this morning, the National Weather Service has most of the D.C. area under a winter weather advisory until 7 p.m. tonight. NWS is expecting one to three inches of snow, most falling in the D.C. area between 2 p.m. and 6 p.m. Roads should be slippery, especially during typical evening commute times. Mayor Muriel Bowser has ordered 100 snowplows to treat the city’s highways, bridges, and major roads.

Snow will be affecting the area today, and will be heavy for a couple of hours this afternoon. Biggest concerns are the timing and intensity of this burst. Find the most likely start time on the graphic. Full details at https://t.co/ZOlvESgJ2H. pic.twitter.com/ih7HuDpN4T

— NWS Baltimore-Washington (@NWS_BaltWash) January 7, 2020

In addition to federal offices, a handful of area school districts are also closing early, including Fairfax, Prince William, Alexandria, Arlington, Falls Church, Howard County, and Montgomery County. D.C. Public Schools and afterschool programs remain open, but its athletic events scheduled for Tuesday night have been cancelled.

Meanwhile, all D.C.-area Smithsonian museums are closing at 3 p.m., and the National Zoo closed at 1 p.m.

As everyone heads home early, Metro announced it is “working to ramp up service” on bus and train lines to accommodate the extra traffic. The transit service has also asked customers of MetroAccess, the transportation service for riders with disabilities, to consider canceling their trips scheduled for this afternoon and evening.

Though D.C.’s hypothermia alert has not been activated, the local shelter hotline can be reached at 202-399-7093 or 311.

This post has been updated with additional information about area closures.