Winter weather advisory issued in parts of upstate NY. How much snow to expect
The warnings cover Chautauqua, Cattaraugus, Erie and Wyoming counties - where up to 3 feet of lake effect snow is expected in the most persistent bands, and Genesee County, where 10 to 20 inches is expected in the same timeframe. Jefferson, Lewis and Owego counties are also predicted to see up to 3 feet of lake effect snow