ALERTS AND SNOW FORECAST: A winter storm watch is posted for all of Long Island, issued from 6 a.m. Sunday to 6 p.m. Monday. Six to 12 inches of heavy snow is now expected, along with strong wind gusts up to 45 mph. There is also a coastal flood watch for moderate coastal flooding around 1.5 to 2.5 feet above ground level from 10 p.m. Sunday until 6 a.m. Monday.

The worst of the storm will be Sunday evening into Monday morning. The exact timing will be fine-tuned through Saturday. Blizzard conditions are possible, with blowing and drifting snow during and after the storm along with an increased risk of power outages. Stay with the News 12 Storm Watch Team for important updates.

Tonight: Cloudy, with rain showers through midnight. Patchy fog. Lows near 32. East wind 5 to 15 mph becoming west after midnight.

Saturday: Mostly Cloudy, with a chance of a passing rain or snow shower. High near 43. West wind 5 to 10 mph.

Saturday Night: Mostly cloudy, a few snow showers, with a low around 30. Wind chill values between 25 and 30. East wind 5 to 10 mph. Minor snow accumulation is possible.

Sunday: TRACKING STORM: Be alert for travel impacts on the ground and in the air. Cloudy with steady snow developing in the afternoon. Cloudy, with a high near 37. East wind 15 to 30 mph.

Sunday Night: TRACKING STORM: Be alert for travel impacts on the ground and in the air. Heavy snow likely with treacherous travel impacts and blowing and drifting snow. Cloudy, with a low around 28. Windy. Wind gusts 25 to 40 mph. Travel will be impacted.

Monday: TRACKING STORM: Be alert for travel impacts on the ground and in the air. Morning snow. Cloudy, with a high near 36. Breezy. Potential of more than 6 inches. Blowing and drifting snow and poor travel conditions possible.