A blizzard of potentially historic proportions was moving toward Massachusetts and New England with a swift, heavy and dangerous vengeance Friday. All of eastern Massachusetts is under a blizzard warning until Saturday afternoon. The storm will make safe travel "nearly impossible" on the roads, as it also threatens the coast with major flooding and hurricane-force wind gusts. The National Weather Service warned of 5-foot drifts and power outages from the storm. Storm Team 5 meteorologist Harvey Leonard calls the storm "a classic blizzard for Boston and southern New England."