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In parts of Delaware, 4-8 inches were forecast, down from predictions of 10 or more inches.

Nevertheless, widespread travel disruptions were reported with thousands of flights canceled. The bulk of the problems were at airports in the D.C. area, New York and Philadelphia.

Metro canceled all bus service in the city for Monday and was expected to run restricted services on Tuesday.

Icy roads were problematic for those who did venture out as dozens of crashes were reported across the region’s roadways.

Along Route 1 near Potomac Yards in Alexandria, side streets and major roads were messy with heavy snow piles and ice as plow trucks struggled to keep up with the steady snowfall.

James Bates, 66, said he was forced to leave the comfort of his home on Monday morning because his wife needed to restock the refrigerator.

“She said there’s no meat in the house,” Mr. Bates said, shaking his head. “It’s a little snow, but there’s ice underneath.”

• Meredith Somers contributed to this article, which is based in part on wire service reports