Flash Flood Watch Issued for Most of Tri-State Ahead of Wet and Windy Storm


What to Know

  • Between 2-3 inches of rain is expected across the region; some areas could get more than 3 inches

  • Wind gusts of 40-50 mph are expected in NYC while Long Island could get gusts of 60 mph

  • The system moves out Monday, though it’ll be gusty; fortunately, the weather for Halloween looks ideal for trick-or-treating

A flash flood watch has been issued for Sunday into Monday for New York City, Long Island and parts of Connecticut and New Jersey ahead of a storm system that’s expected to bring strong winds and widespread rain to the tri-state. 

The National Weather Service issued the flash flood watch from noon Sunday through 6 a.m. Monday. A high wind watch was also issued for much of the region from 6 p.m. Sunday through 6 a.m. Monday. 


The region is under a flash flood watch on Sunday.

Photo credit: NBC 4 New York

Conditions were beautiful Saturday, with 70-degree weather and sunny skies, but they’re expected to deteriorate rapidly Sunday as gusty winds and heavy rain form. 

The storm moving in Sunday is expected to bring 1-3 inches across the region, with more than 3 inches possible in some places, Storm Team 4 says. (See the full list of weather watches and warnings below.)

The severe weather threat comes five years to the day Sandy made landfall in New Jersey, beginning its days-long siege on the tri-state area.


Potential rainfall from the storm.

Photo credit: NBC 4 New York

The heaviest rain is expected between noon Sunday and 7 a.m. Monday, according to Storm Team 4. Flash flooding and isolated power outages are possible as the storm rolls through. 

The strongest winds are likely between 3 p.m Sunday and noon Monday. Gusts are expected to be more than 50 mph in spots. Storm Team 4 says the windiest areas are expected to be on Long Island, but that gusts of more than 40 mph are likely in the city and Hudson Valley. 

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Wind gusts expected on Monday

Photo credit: NBC 4 New York

Utility company PSE&G said all of its employees and contractors on Long Island are on-hand and ready to respond to any damage the rain and high winds might cause. 

The storm moves out Monday morning, though wind gusts will still top 40 mph at times, especially on Long Island, according to Storm Team 4. 

Check the latest severe weather alerts from the National Weather Service here.

Showers may linger a bit through Monday morning, but it’s expected to stay gusty for much of the day and temperatures aren’t expected to crack the 60-degree mark. The weather improves for Halloween, with partly to mostly sunny skies forecast and a high of 60 degrees, Storm Team 4 says.

Flash flood watch is in effect for:

  • All five boroughs of New York City
  • Suffolk County
  • Nassau County
  • Westchester County
  • Passaic County
  • Hudson Couty
  • Bergen County
  • Essex County
  • Sussex County 
  • Union County
  • Orange County
  • Putnam County
  • Rockland County
  • Fairfield County
  • New Haven County
  • Middlesex County
  • New London County

High wind watch is in effect for: 


The Bronx 

Staten Island


Nassau County

Fairfield County

Hudson County

Eastern Bergen County

Southern Westchester County

  • All five boroughs of New York City
  • Nassau County
  • Fairfield County
  • Hudson County
  • Bergen County
  • Westchester County (southern)
  • Ulster County (western)
  • Dutchess County (eastern) 

High wind warning is in effect for:

Published at 8:38 AM EDT on Oct 28, 2017 | Updated 18 minutes ago

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