Snow, sleet threaten U.S. East Coast, hinder hundreds of flights

A winter storm bore down on the U.S. East Coast on Wednesday, threatening to snarl New York City's evening commute after hindering air travel along the East Coast and prompting the shutdown of federal offices in Washington. Snow turning to sleet slickened roadways in the New York metropolitan area by the early afternoon and was blamed for a rash of fender benders and traffic jams. The widespread weather system piled as much as 6 inches (15 cm) of snow across the Washington area before turning to sleet, said meteorologist Bryan Jackson of the National Weather Service Weather Prediction Center in College Park, Maryland.