Weather Alerts For Denmark, NY

URGENT - WINTER WEATHER MESSAGE National Weather Service Buffalo NY 1243 AM EST Mon Dec 15 2025 Jefferson-Lewis- Including the cities of Watertown and Lowville 1243 AM EST Mon Dec 15 2025 ...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 PM EST TUESDAY... * WHAT...Heavy lake effect snow expected. Total snow accumulations 8 to 16 inches in the most persistent lake snows over southern Jefferson County and the northwest portion of the Tug Hill Plateau. * WHERE...Jefferson and Lewis Counties. The greatest accumulations will be across southern Jefferson County and the northwest portion of the Tug Hill Plateau. * WHEN...From 7 AM this morning to 1 PM EST Tuesday. Lake effect snow expected to redevelop around midday. * IMPACTS...Travel will be very difficult with snow covered roads and poor visibility. The hazardous conditions will impact the Monday evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heavy snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media. &&