Weather Alert  

COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 AM EDT THURSDAY * WHAT...Up to one foot of inundation above ground level in vulnerable areas near the waterfront and shoreline this morning. One to two feet of inundation above ground level in vulnerable areas near the waterfront and shoreline tonight. * WHERE...In Connecticut, Southern Fairfield County and Southern New Haven. In New York, Southern Westchester County, Northwestern Suffolk, and Northern Nassau. * WHEN...For the Coastal Flood Advisory, from 11 PM this evening to 2 AM EDT Thursday. For the Coastal Flood Statement, until 2 PM EDT this afternoon. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline this morning. Shallow flooding is expected in the most vulnerable locations near the waterfront and shoreline tonight. Some roads and low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront will experience shallow flooding.

NWS: Powerful Storm Set to Hit Long Island Region; Heavy Rainfall Expected Thursday into Friday, Risk of Coastal Flooding

LongIsland.com

Significant amount of precipitation expected, up to a total of two inches or more in some areas, according to the National Weather Service.

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Long Island, NY - December 18, 2018 - The very mention of the word “storm” at this time of the year often sends Long Islanders into a tizzy and racing for the nearest hardware store to load up on shovels and ice melt. However, we can assure you that there is no snow in the forecast this week, despite the fact that this Friday, December 21, is the very first day of winter.
 
There is, however, a significant amount of rainfall coming late in the week, according to the National Weather Service, and while current temperatures are too high for it to become snowfall – the current forecast calls for unseasonable highs in the 50’s both Thursday and Friday – it could nonetheless result in flooding in coastal regions if current storm tracking estimates hold their course.
 
Heavy rainfall is expected to hit Long Island late in the evening Thursday and lasting well into Friday, the NWS says; the significant amount of precipitation expected – up to a total of two inches or more in some areas – is due to moisture being tapped from the tropics, resulting in a complex frontal system and associated low pressure.
 
In addition to potentially heavy rain, NWS notes, there will also be high-wind conditions; that, coupled with the anticipated heavy rain and a full moon – which could result in higher water levels than usual – equals a high probability of widespread coastal flooding, in addition to localized street and parkway flooding. Residents of coastal areas are urged to take precautions and to be careful.
 
There is also the possibility of thunderstorms working their way into the mix on Friday.
 
It is too early to be specific with water levels at this time, but the situation bears watching, according to the NWS. There is still a great deal of uncertainty with this system, so please stay tuned for further updates.
 
The current weather forecast for throughout this upcoming weekend is as follows:
 
  • Wednesday: Sunny, with a high near 41. Wind chill values between 20 and 30. Southwest wind 7 to 9 mph.
  • Wednesday Night: Mostly clear, with a low around 34. Southwest wind 5 to 8 mph.
  • Thursday: A 20 percent chance of rain after noon. Increasing clouds, with a high near 48. Light and variable wind becoming southeast around 6 mph in the afternoon.
  • Thursday Night: Rain. Temperature rising to around 54 by 5am. Breezy, with an east wind 6 to 11 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
  • Friday: Rain before noon, then showers after noon. High near 57. Breezy. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
  • Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 49.
  • Saturday: Partly sunny, with a high near 49.
  • Saturday Night: Partly cloudy, with a low around 35.
  • Sunday: Sunny, with a high near 43.