**Snowstorm update with changes**
The models have generally continued the northwest trend with a huge expansion of the snow well northwest, but without shifting the snow on the southeastern edge too much. It now appears very likely that a period of moderate to heavy snow will eventually change to rain on Long Island and in southeastern New England.
Winter Storm Watches have been issued on Long Island for Nassau and the western half of Suffolk from 12 AM Monday to 6 AM Tuesday for 6 to 9 inches of snow with wind gusts up to 45 mph. The details for Long Island are in the forecast below, but generally snow starting between 10 PM tomorrow and 1 AM Monday and becoming heavy at times Monday mid-morning into mid-afternoon before the transition to sleet and then rain begins in southeastern Suffolk and continues into northwest Nassau in the evening. Total accumulations of 3 to 6 inches for eastern Suffolk, 5 to 8 inches for most of central Suffolk to southeast Nassau, and 7 to 10 inches for northwest Nassau.
LONG ISLAND FORECAST:
Today (Saturday): Sunny and very cold with highs in the mid to upper 20's. Wind out of the NW at around 10 to 15 mph with some higher gusts.
Tonight: Mostly clear and very cold with lows mostly between 10 and 15 degrees, but some single digits in the Pine Barrens area in Suffolk. The wind will be diminishing to around 10 mph from the NNW to N.
Tomorrow (Sunday): Increasing clouds in the morning with highs around 30 degrees with light winds.
Tomorrow night (Sunday night): Cloudy with light snow developing between 10 PM and 1 AM with lows in the mid 20's. Becoming windy late with gusts up to 20 mph.
Monday: Snow, heavy at times, and becoming windy with gusts up to 40 mph from the NE. The snow should change to sleet and rain from southeast to northwest starting in the mid to late afternoon. Highs in the low 30's.
Monday night: Any snow early in northwest Long Island will also become sleet and then rain by 9 PM. Windy with gusts up to 45 mph from the NNE. Temperatures in the low to mid 30's. Total accumulations of 3 to 6 inches for eastern Suffolk, 5 to 8 inches for most of central Suffolk to southeast Nassau, and 7 to 10 inches for northwest Nassau.
Tuesday: Cloudy with occasional rain or snow showers possible. Windy with gusts up to 35 mph from the N and then NNW.
Wednesday: Partly cloudy and breezy with highs in the upper 30's.
Thursday: Mostly sunny with highs in the low 40's.
- 1st image: Projected snowfall through 7 AM Tuesday from the NWS
- 2nd and 3rd images: Projected snowfall from the National Weather Service model blend and Euro ensemble mean, respectively, through 1 PM Wednesday
- 4th to 9th images: Maps from the Euro for 11 PM tomorrow, 8 AM Mon, 1 PM Mon, 7 PM Mon, 1 AM Tues, and 7 AM Tues.
- 10th image: Projected temperatures for Long Island for the next 10 days from the NWS model blend