Update on the snow and then much milder next week:
For Long Island, the Winter Weather Advisory has been extended until 7 PM tomorrow as the 2nd wave may be a little stronger and longer-lasting. The National Weather Service is still generally going with 3 to 5 inches today and then 1 to 3 inches tomorrow. The radar shows snow already approaching the NYC, but it will take a while to overcome the dry air, so while there may be some flurries earlier, the main period of snow should begin from 7 AM to 10 AM from southwest to northeast. Most of the accumulations should come between Noon and 5 PM before we have to watch for sleet to start mixing in. There will be lighter precipitation overnight, and then the NAM is showing a more impressive 2nd wave tomorrow with the snow lasting into tomorrow evening.
Monday will bring snow changing to rain for Long Island and southern New England with light accumulations for the higher elevations of central to northern New England and NY state. Below average temperatures through Sunday, and then around average temperatures Monday and Tuesday followed by above average temperatures the rest of next week.
LONG ISLAND FORECAST:
Today and tonight: Snow developing mostly between 7 AM and 10 AM and continuing through the day at mostly moderate intensity with some heavier bursts possible in the early to mid-afternoon, and it will be a fairly dry snow with temperatures mostly in the upper 20's. It will likely mix with or change to sleet in the late afternoon or evening. Snowfall accumulations by this evening of around 3 to 5 inches with the lower amounts possible for eastern Suffolk. There may also be breaks in the precipitation overnight with just periods of light snow, sleet, or freezing rain. Temperatures very slowly rising tonight to the low 30's by tomorrow morning. Wind out of the NE at 10 to 20 mph.
Tomorrow: Any mixed precipitation early becoming all snow and continuing into the late afternoon or early evening at mostly light to moderate intensity. Additional accumulations of 1 to 3 inches are possible. Highs mostly in the low 30's with some mid 30's possible for the south fork. Wind out of the NE at 10 to 15 mph.
Saturday: Becoming mostly sunny and breezy with highs in the low 30's. Wind gusts up to 20 mph from the NW.
Sunday: Mostly sunny with highs in the low to mid 30's.
Monday: A chance of light snow in the morning changing to rain in the afternoon with highs in the low 40's.
Tuesday: Partly cloudy with highs in the low 40's.
- 1st to 3rd images: Projected snowfall through 7 AM Saturday from the National Weather Service, NAM, and Euro, respectively
- 4th to 9th images: Maps from the NAM for today at 10 AM, 2 PM, and 8 PM, and tomorrow at 7 AM, 1 PM, and 7 PM
- 10th image: Projected temperatures with ranges for Long Island for the next 15 days from the Euro ensembles
- 11th image: Projected temperatures for Long Island for the next 10 days from the NWS model blend