By Nick Pfosi BOSTON (Reuters) -The northeastern United States was walloped by a fierce winter storm on Saturday that dropped more than two feet (60 cm) of snow on some areas while packing high winds, prompting thousands of flight cancellations and leading governors in Rhode Island and other states to curtail access to the roads. Nearly 11 million people along the East Coast remained under blizzard warnings from the Nor’easter, according to the National Weather Service, including the Boston metropolitan area, which was forecast to be hit with up to 25 inches (64 cm) of snow. The storm blankete…