Federal workers and schoolchildren in the nation’s capital were told to stay home for a second day Tuesday as another major snowstorm barreled toward the region, which is still reeling from a weekend blizzard.

The National Weather Service predicted another 50cms of snow for northern Virginia and eastern Maryland, including the District of Columbia, beginning Tuesday afternoon and continuing through Wednesday.

The storm would be the third major snowfall to hit the nation’s capital and surrounding region in just over seven weeks.

In last weekend’s blizzard, a record 82cms of snow fell on Washington’s Dulles International Airport over two days, breaking a January 7-8, 1996, record of 59cms.

All Washington National Guard full-time personnel were asked to report for duty Tuesday morning and told to expect to stay two or three nights, helping with emergency response operations.

Crews worked to clear roads and repair power lines, and utilities warned it might take days to restore electricity to some customers from Pennsylvania to Virginia.

Amtrak will offer limited service between New York and Washington on Tuesday.

And bus services in Maryland and Washington said some routes might be canceled, depending on the severity of the storm.

Reagan National, Dulles and the Baltimore airports were all operating early Tuesday, but each asked passengers to check with their airlines before coming.

Federal workers in Washington and students in most schools in the nation’s capital got a snow day.

Claire Jacobi of Arlington took the subway to shoot a video of children sledding on the Capitol grounds.

“It was just a magical moment. It was a big family gathering,” she told CNN’s iReport.

In Michele Kontaxes’ subdivision in Ashburn, Virginia, the snow finally stopped falling after 30 hours.

“I took my Nikon D60 out for a long hike around the neighborhood, where I encountered snow thigh high and a few neighbors who were cross-country skiing in the neighborhood,” she said Monday. “I also encountered several snow-covered cars, where nothing but the antenna was visible.”