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Tropics, rain & snow maps, and the Long Island forecast:

The 2 areas shown in the 1st image each have only a low chance of tropical (or subtropical) development. Here is more on each from the National Hurricane Center:


1. A broad area of low pressure located over the southwestern Caribbean Sea and is producing an area of disorganized showers and thunderstorms. Development, if any, of this system is expected to slow to occur during the next several days while it drifts west-southwestward or westward across the southwestern Caribbean Sea. Regardless of tropical cyclone formation, areas of heavy rain are possible during the next several days from Nicaragua southward across Central America and into Colombia. These rains could cause new flooding concerns, especially across previously inundated areas. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...10 percent. 2. A non-tropical area of low pressure could form between the Bahamas and Bermuda by early next week. The system could gradually develop subtropical characteristics through the middle of next week while it moves northeastward. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...20 percent.


I have included the rain and snow maps below. For Long Island, see below for details, but the timing for the rain looks to be mostly Sunday night into Monday morning and then next Wednesday afternoon or evening into Thanksgiving morning or afternoon.


LONG ISLAND FORECAST:


Today (Thursday): After a cold start this morning with temperatures in the mid 20's, it will be mostly sunny with highs around 50 degrees as the wind shifts to the warmer SSW direction by late morning. Increasingly windy in the afternoon with gusts of 20 to 25 mph.

Tonight: Partly cloudy and breezy with lows mostly in the low 40's.

Tomorrow (Friday): Mostly sunny and breezy with highs in the upper 50's to near 60 degrees. Wind gusts up to 20 mph.

Saturday: Mostly sunny with highs in the upper 50's with lighter winds.

Sunday: Mostly cloudy with highs in the mid to upper 50's. A few showers are possible by evening with a better chance of showers overnight.

Monday: Mild in the morning with showers ending around late morning with partial clearing in the afternoon. Temperatures dropping from the mid 50's in the morning to the low 50's by late afternoon as the wind shifts to a NW wind in the afternoon with gusts up to 20 to 25 mph.

Tuesday: Partly cloudy and much cooler with highs in the mid 40's.

Wednesday: Cloudy with a 40% chance of showers developing in the afternoon. The exact timing is still uncertain, but it appears to be in the afternoon into Thanksgiving morning. Highs in the low 50's.


- 1st image: Overview of the tropics from the National Hurricane Center

- 2nd image: Projected temperatures for Long Island for the next 10 days from the National Weather Service model blend

- 3rd image: Projected precipitation for the next 6 days (through 7 AM next Wednesday) from the Weather Prediction Center

- 4th image: Projected snowfall for the next 10 days from the Euro







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