Quick 4 AM update on the big snowstorm!
There haven't been too many changes in the overnight model runs. First, we have the weaker system for Monday with rain for Long Island, possibly changing to wet snow in the mid-afternoon before ending. As for the big storm, the best chance of staying all snow is still northwestern Long Island and especially areas to the north, northwest, and west of Long Island. Areas that stay all snow could get 12 to 18 inches. The sleet line may make it to the south shore and east end of Long Island; it's just too close to call right now. There is also the potential for wind gusts of 45 mph on Long Island and possibly 50 mph near Montauk.
LONG ISLAND FORECAST:
Today (Sunday): Mostly sunny and mild with highs in the upper 50's to near 60 degrees. The wind will be out of the SW in the morning and the W in the afternoon with gusts up to 20 mph in the afternoon.
Tomorrow (Monday): Cloudy with rain developing in the mid to late morning, possibly mixing with or changing to wet snow by mid-afternoon before ending in the late afternoon or early evening from west to east. Temperatures dropping from the low 40's in the morning to the upper 30's in the afternoon
Tuesday: Mostly sunny and cold with highs in the mid to upper 30's
Wednesday: Chance of snow developing by mid to late afternoon. Highs in the mid 30's. Accumulating snow (moderate to heavy at times) is likely into Thursday morning, but we have to watch how close the sleet/rain line comes to Long Island, especially the south shore and east end. Wind gusts up to 40 mph from the NNE to NE are possible. Stay tuned for updates as there may be shifts. If it stays all snow, there is the potential for 8 to 14 inches of snow. However, some mixing with sleet or a change to rain for a time is possible for the south shore and east end, depending on how close the center comes to the coast.
Thursday: Snow tapering off to flurries by afternoon. Breezy with highs only in the low to mid 30's.
Friday: Mostly sunny and cold with highs in the mid 30's.
- 1st to 5th images: Snow maps through 7 PM Thursday from the Euro, Euro ensemble mean, GFS, Canadian, and UKMET
- 6th image: Probability of greater than 6 inches of snow through 7 PM Thursday from the Euro ensembles
- 7th and 8th images: Maps from the Euro for 1 AM and 7 AM on Thursday
- 9th image: Projected temperatures for Long Island for the next 10 days from the National Weather Service model blend