Above: Graphic from the National Weather Service showing weather watches, warnings and advisories in upstate New York as of 1 p.m. on Wednesday. The area in pink, stretching across the southern Catskills and Hudson Valley, is under winter storm warning; counties in dark blue are under winter storm watch.
A nor'easter moving up the East Coast is expected to drop anywhere from 6 to 18 inches of snow on the Catskills on Thursday, with the heaviest accumulations in the southeastern part of the region.
Snow will begin to fall Thursday morning, become heavier in the afternoon, and continue overnight. Forecasters expect travel conditions to be dangerous in the area from Thursday through Friday morning.
Hudson Valley Weather has a detailed forecast for the storm, with a breakdown of how much snow accumulation is expected in different parts of the Catskills and Hudson Valley. The highest accumulations are expected to occur in a fairly narrow band across the mid-Hudson Valley, Shawangunk Mountains and the southeastern Catskills.
The U.S. National Weather Service offices in Binghamton and Albany are tracking the storm's progress toward the region. The Binghamton office covers Delaware and Sullivan counties in the Catskills; the Albany office covers Greene, Schoharie and Ulster.
Any shift in the track of the storm as it moves northward could move the band of high precipitation north or south, forecasters say.
Update, 2:53 p.m.: Trailways bus service to several routes that serve the Catskills region has been cancelled for Thursday, in advance of the snowstorm. For more information, click here.
Update, 10:21 p.m.: The latest forecast briefing from Hudson Valley Weather calls for increased amounts of snow: 8 to 16 inches across the northwestern Catskills, and 10 to 18 inches across the southeastern Catskills and mid-Hudson Valley. A combination of heavy, wet snow and gusting winds could bring trees down and lead to power outages in the region.