MORRISTOWN, Tenn. (WVLT/AP) -- Hurricane Sandy, merging with a secondary upper-level low, will create a very strong storm system across the central Appalachians during the first part of the week.
The National Weather Service has issued a winter storm warning for the higher elevations of East Tennessee and the Smokies through early Wednesday.
All flights scheduled to and from New York, Philadelphia and Washington DC scheduled for today have been cancelled. Click here for flight information
The National Park Service closed Newfound Gap Road (U.S. 441) due to snow and ice.
The heaviest snowfall is expected to come overnight, and accumulations of 6 to 17 inches are possible at elevations above 3,500 feet.
Northwest winds will continue to increase, and a wind advisory is in effect through Tuesday evening across the region.
A winter weather advisory is in effect for lower elevations of northeast Tennessee.