A fierce winter storm has dumped over a foot of snow in areas along the East Coast from the Carolinas to Maine. Passengers have been stranded with thousands of flights as well as train and bus routes canceled until at least Tuesday. The National Weather Service issued blizzard warnings from Maine to New Jersey and a winter storm warning for nearly the entire East Coast. Some areas experienced thunder and lightning as the snow came down Sunday, an extremely rare occurrence of “thundersnow.” States of emergency have been declared in North Carolina, Virginia, Maryland, New Jersey, Maine and Massachusetts.