At 2:04 a.m. on Thursday, the National Weather Service issued an updated winter storm watch valid from Sunday 1 a.m. until Monday 7 p.m. for Yates, Seneca, Cayuga, Onondaga, Steuben, Schuyler, Chemung, Tompkins, Madison, Oneida, Cortland, Chenango, Otsego, Tioga, Broome, Delaware and Sullivan counti es."Widespread heavy snow with significant accumulations possible," explains the weather service. "At this time, the heaviest snowfall is forecast to be from the Twin Tiers southward, however, further adjustments to the storm track is likely in the coming days. Snowfall could be very heavy at times Sunday through Sunday night with hourly rates exceeding 1 inch per hour." ...read more read less