This image made available by NOAA shows storm systems over the eastern half of the United States on Thursday, Feb. 7, 2013 at 11:15 EST. A blizzard of potentially historic proportions threatened to strike the Northeast with a vengeance Friday, Feb. 8, 2013 with 1 to 2 feet of snow feared along the densely populated Interstate 95 corridor from the New York City area to Boston and beyond. (AP Photo/NOAA)
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