Overview of this week, an update on the potential storm next week, and the Long Island forecast:
A series of fast-moving weak disturbances will be moving through the northeast this week with periods of snow showers and flurries, mostly north of Long Island (see 1st image for snow map).
It will be a sunny and cold weekend, and then we have the potential system for next Tuesday, the 26th. The indicators are no longer well-aligned for a big snowstorm in the mid-Atlantic and southern New England. While we still have a negative AO and NAO (which are both good for snow), the PNA is going to be negative (not good for snow), and the biggest change is that it originally looked like we were going to have a negative EPO and WPO (which would have been good for snow), but now it looks like they will both be positive early next week. So, it generally favors mostly rain for Long Island and southern New England with snow for northern New England. It can still start as snow on Long Island and in southern New England though. There are still a decent amount of Euro ensemble members that show a snowstorm sometime next week, so we just have to keep watching it.
LONG ISLAND FORECAST:
Today (Monday): Mostly sunny in the morning with some more clouds by mid-afternoon with a slight chance of a few sprinkles by late afternoon and early evening. Highs in the low to mid 40's, and it will be a little breezy in the afternoon with a wind out of the west at around 10 to 20 mph.
Tonight: Partly cloudy with lows mostly in the upper 20's in Suffolk and around 30 to 32 in Nassau.
(Tomorrow) Tuesday: Mostly sunny in the morning with some more clouds in the afternoon and a little breezy with highs in the low 40's.
Wednesday: Mostly cloudy in the morning and partly cloudy in the afternoon. Windy and cold with highs around 37 degrees. Wind gusts up to 25 mph from the NW in the afternoon.
Thursday: Partly to mostly cloudy with highs in the upper 30's.
Friday: Partly cloudy with highs in the low 40's.
Saturday: Mostly sunny and breezy with highs in the mid 30's.
Sunday: Mostly sunny and a little breezy with highs in the mid 30's.
- 1st image: Projected snowfall through 1 PM Saturday from the Euro
- 2nd and 3rd images: Maps from the Euro for next Tuesday at 7 AM and 1 PM
- 4th and 5th images: Projected snowfall for Long Island and Boston, respectively, for the next 15 days as a running total from every Euro ensemble member
- 6th image: Projected temperatures with ranges for Long Island for the next 15 days from the Euro ensembles
- 7th image: Projected temperatures for Long Island for the next 10 days from the National Weather Service model blend