A powerful September nor'easter is bringing periods of rain, strong winds, rough surf and coastal flooding to parts of New York this weekend, with the greatest impacts expected through Sunday. Coastal
flood warnings remain in effect for New York City, southern Westchester County and Long Island.
Storm expected to peak through Sunday
Forecasters expect conditions to worsen through Saturday, with the storm reaching peak intensity from Saturday into early Sunday. Gusty winds, rough surf and coastal flooding could linger into Monday even after the heaviest rain tapers off.
Rain and wind forecast
Parts of central and eastern Long Island could receive 3 to 4 inches of rain, while many other locations are forecast to see 1 to 3 inches.
Wind gusts of 40 to 50 mph are possible in many coastal areas, with isolated gusts approaching 55 mph. Forecasters warn that fully leafed trees could increase the risk of downed limbs and scattered power outages.
Coastal flooding remains the biggest threat
Coastal flooding continues to be the storm's primary hazard.
Coastal flood warnings are in effect through Sunday for New York City, southern Westchester County and Long Island.
AccuWeather forecasts tides 2 to 3 feet above average in some areas from northern New Jersey through southeastern New York, increasing the risk of flooding during multiple high-tide cycles.
Long Island's South Shore and other low-lying coastal communities around New York City are expected to face the greatest risk. Beach erosion, dangerous surf and rip currents are also expected through the weekend.
Travel impacts possible
Strong winds could create hazardous travel conditions and cause scattered power outages in some areas.
Airlines and transportation providers have warned of potential delays and disruptions as the storm moves through the Northeast. Travelers are encouraged to check the status of flights, trains and other transportation before departing.
When conditions improve
The nor'easter is expected to weaken Sunday, though rain showers, gusty winds and some coastal flooding could continue into Monday, especially along Long Island and other coastal areas. Conditions are expected to improve gradually early next week.
Residents in flood-prone and coastal communities should monitor the latest forecasts and warnings, avoid flooded roadways and prepare for changing conditions throughout the weekend.
This article originally appeared on Rockland/Westchester Journal News: How long will New York's nor'easter last? Latest forecast, flooding risks and timing
