Discussion OBS for minor to possibly moderate impact winter storm interior 4A Tue - midnight Tue 12/2/25, may bring first measurable snow-sleet to coastal areas including NYC

[wdrag]

Based on ensemble guidance seen through 06z/28, a rapidly intensifying and fast moving coastal low will bring a variety of weather elements to the NYC subforum. Periods of moderate to heavy rain are expected coastal areas- preceded by a little snow-sleet near dawn Tuesday and to closeout the storm Tuesday evening, while a period of heavy snow-sleet seems likely for the interior, especially the I84 corridor. Gusty northerly winds to 45 MPH are possible for eastern Long Island in the early Wednesday morning departure.  

Due to the late development and rapid departure of the storm, the chance of coastal flooding is minimal. 

All ensembles including ECAI have significant precipitation.

This may be Central Parks first measurable snow-sleet of the season, though temps at or just above freezing at sunrise Tuesday may preclude onset measurable in the city.

Delays are anticipated over the interior hilly terrain with possible school closings or early dismissals along and north of I80, especially the I84 corridor from the Poconos across se NYS into CT.

One attached graphic (WSSI-P) shows the potential for a minor impact event per the NWS inputs for the their 1AM Friday forecast.