A powerful, slow-moving storm that has affected much of the U.S. brought snow and bitter cold to the Northeast Monday, snarling traffic, prompting another 1,650 U.S. flight cancellations and leaving tens of thousands of people without power.

Government workers and students in the Washington, D.C., area were told to stay home Tuesday as the region braced for another round of snow just a few days after some parts already received several inches.

In Washington, the snow was expected to start falling in time for the morning commute, potentially causing traffic problems.

Non-emergency federal employees in the area were granted an excused absence Tuesday but other employees were told to telecommute, according to the U.S. Office of Personnel Management's website.

The District of Columbia government also closed as well as public schools and some universities in the region.

The National Weather Service issued a winter storm warning for the Eastern Seaboard, including Baltimore, Washington, Philadelphia and Wilmington, Del. Snow accumulations of 3 to 6 inches were expected.

The new snow comes on the heels of Sunday's winter weather, which dumped several inches of snow on Philadelphia and northern Maryland.

Elsewhere, eastern and central Kentucky and southwest Virginia were expected to get 1 to 3 inches of snow. All of West Virginia was likely to see snow Tuesday, with 2 to 4 inches forecast for north and central parts of the state and 3 to 5 in the mountains.

Based on reporting by The Associated Press.

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