Story highlights 2-6 inches of snow, rain and sleet expected in New York City, Philadelphia and Boston

4-6 inches expected to accumulate in Washington, D.C., and 6-10 inches in Baltimore, the National Weather Service says

(CNN) A new winter storm slammed the East Coast on Saturday, putting Washington, D.C. and Baltimore into the deep freeze.

In Washington, 4-6 inches of snow and sleet were expected to accumulate by Sunday morning, the National Weather Service reported. In Baltimore, the prediction was even worse, with 6-10 inches expected.

Snow is cleared on the North side of the White House in Washington, Saturday, February 21.

The storm snarled roads, forcing the closure of I-95 southbound in Baltimore and leaving so many disabled vehicles that emergency vehicles couldn't get through, CNN affiliate WBFF reported.

A sheet of ice covered part of Madison Avenue NW in Washington because a water main broke on Friday, CNN affiliate WJLA reported, trapping about half a dozen cars.

"I can't even move the car," A.J. Kumar told WJLA. "It's right up to the bumper."

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