D.C. dwellers hoping to start their President’s Day weekend early have been thwarted by the snowstorm, which forced Reagan Washington National and Dulles International airports to close Wednesday. They aren’t rescheduled to reopen until Thursday morning. Some airlines have also canceled flights in and out of Washington, Baltimore, Philadelphia, New York, and Boston. Delta, United, US Airways, and Continental each canceled at least 600 flights Wednesday. New York airports remained open, but most flights were grounded. According to the National Weather Service, blizzard warnings are in effect Wednesday for the Northeastern and Mid-Atlantic U.S., extending from New York to the Carolinas. Those locations can expect winds at speeds of 35 mph or higher and considerable snowfall with near-zero visibility for three hours or longer. In Washington, snow is reportedly falling at a rate of two inches per hour and this winter has already shattered Dulles’ previous snowfall record with 65.7 inches.