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Long Island Forecast and the Snowstorm Coming to the Northeast This Weekend

January 13, 2020

See the "My Personal Weatherman" Facebook page for frequent updates.

 

- The models are in good agreement with the general track of the storm and snow amounts. The new Euro run is slower though for some reason as it doesn't have the snow start on Long Island until Saturday afternoon. The GFS and Canadian both have the snow start around 3 AM to 5 AM Saturday. (5:11 AM edit: The new 06z GFS now has the snow start around 8 AM to 10 AM Saturday). The secondary area of low pressure will develop along the New England coast, so Long Island will definitely change to rain. As of now, it looks like 1 to 2 inches of snow is possible for northwest Nassau with only a coating to a 1/2 inch as you head towards southeastern Suffolk before the change to rain. It's still 5 days away, so there will be subtle to moderate changes in the forecast.
- Also, northern NY state and northern New England will be getting some snow on Thursday, and those snow amounts are also included in the snow map below.
- For Long Island, mostly cloudy today with highs in the mid 40's. There will be a few scattered light rain showers tomorrow from mid-afternoon into the evening with highs in the mid 40's. Partly to mostly sunny on Wednesday with highs in the upper 40's. Some showers Thursday morning and then windy and colder behind the system. Friday will be mostly sunny with highs in the mid 30's ahead of the storm. Increasing clouds Friday night.
- Below normal temperatures are expected after the storm from Monday to at least Wednesday next week.
- NOAA is also forecasting that the odds favor below normal temperatures for the northeast from January 25th to Feb 7th.

- 1st image: Projected snowfall through 7 PM Sunday from the Euro ensemble mean.

- 2nd image: Projected temperatures with ranges for Long Island for the next 15 days from the Euro ensembles.

 

 

 

 

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