Unwelcome Nor'easter Poised to Snarl Wednesday Travel

After basking in record warm temperatures in the 60s and 70s on Monday, the Northeast U.S. is bracing for a Wednesday winter onslaught, as a significant Nor'easter will bring heavy snows to the roads at the same time that millions of people hit the roads in advance of the Thanksgiving holiday. The unwelcome storm will form off the coast of South Carolina Tuesday night and track north-northeastward, parallel to the coast, on Wednesday. Snow will begin in the Southern Appalachians late Tuesday night and spread northeastwards on Wednesday. Areas to the east of the I-95 corridor will start off with heavy rain, but the rain will transition to wet, heavy snow on Wednesday afternoon as cold air spills southwards along the coast. Little or no accumulation is likely in Washington D.C., which hit a pleasant 74°F on Monday. The story is different, though, in Philadelphia, where a Winter Storm Watch for 2 - 3 inches of snow was posted on Monday--even as the temperature rose to a record high for the date of 72°F. Higher snowfall amounts of 4 - 8" are possible in New York City, which also experienced a record high on Monday--64°F at Kennedy Airport. Boston will also be severely impacted beginning late Wednesday afternoon, with snows of 4 - 6" possible. Portland, Maine, which hit a record 63°F on Monday, is under a Winter Storm Watch for 4 - 8" of snow. 
http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2867