Update on all of the upcoming snowstorms and the extreme cold:
The models continues to try to converge on the snowstorm for Sunday. The NAM is showing the potential for higher snowfall totals on Long Island, but as of now, it generally looks like 3 to 5 inches. The general timing is from around 5 AM to 3 PM on Sunday, give or take a couple of hours. Depending on the track, there may be higher snowfall totals in southeastern MA.
Regarding Tuesday, it looks like it will start as snow early Tuesday morning for Long Island, but change to rain after possibly 1 to 2 inches. However, it should stay all snow for central to northern New England. The Euro is showing a big snowstorm for those areas, but it may be overly bullish; we will have to see how it evolves.
Extremely cold air will be coming down into the United States this weekend, and it will gradually work its way into the northeast. Late next week and next weekend look frigid. The uncertainty comes regarding a couple of potential winter storms on either side of the Arctic blast for the northeast. It's possible that the leading storm for next Friday stays mostly in the central Mid-Atlantic states and doesn't really come up the coast as the Arctic air helps to push it offshore. If that's the case, the potential bigger snowstorm for the northeast could come as the Arctic air retreats around the 15th or 16th.
LONG ISLAND FORECAST:
Today: Cloudy with showers at times (possibly starting briefly as wet snow or sleet) mostly between around 7 AM and 1 PM with highs in the low 40's. Wind out of the SSW this morning shifting to WSW this afternoon with gusts up to 15 or 20 mph.
Tonight: Clearing skies with lows mostly in the mid 20's. Wind gusts up to 20 mph from the west.
Tomorrow: Mostly sunny and breezy with highs around 40 degrees. Wind out of the WSW to W with gusts up to 25 mph.
Sunday: Cloudy with snow developing between 3 AM and 7 AM and ending in the early to mid afternoon. As of now, it looks like around 3 to 4 inches, but that can still change, depending on the exact track and strength. The NAM is showing the potential for higher snowfall totals. Wind out of the NE mostly at around 15 to 20 mph.
Monday: Mostly sunny and colder with increasing late day clouds with highs around 30 degrees.
Tuesday: Cloudy with a 60% chance of snow starting early in the morning and changing to rain by late morning. There is the potential for 1 to 2 inches of snow before the change to rain. Highs around 40 degrees.
Wednesday: Partly cloudy and a little breezy with highs in the low 30's.
- 1st image and 2nd images: Projected snowfall through 7 PM Sunday from the Euro and Euro ensemble mean, respectively
- 3rd image: Projected snowfall from 1 AM Tuesday to 1 AM Wednesday from the NWS model blend
- 4th image: Projected temperatures with ranges for Long Island for the next 15 days from the Euro ensembles
- 5th to 7th images: Maps from the NAM for Sunday at 6 AM, 9 AM and 1 PM
- 8th image: Projected snowfall for Long Island for the next 15 days as a running total from every Euro ensemble member
- 9th image: Projected wind chill temperatures at 7 AM next Saturday from the Euro
- 10th image: Projected temperatures for Long Island for the next 10 days from the NWS model blend