Coastal Flood in Southwest Suffolk, New York

Widespread major coastal flooding occurred for several hours along the Great South Bay:

Major coastal flooding occurred at at the Lindenhurst USGS tidal gauge, with water levels above the major threshold of 4.1 ft MLLW from 712 AM EST to 1018 AM EST, and a peak water level of 4.5 ft MLLW at 900 AM EST. Moderate coastal flooding above the threshold of 3.6 ft MLLW occurred from 554 AM EST to 1148 AM EST.

Major coastal flooding occurred at the West Sayville USGS tidal gauge, with water levels above the major threshold of 4.1 ft MLLW from 648 AM EST to 1254 PM EST, and a peak water level of 4.9 ft MLLW at 954 AM EST. Moderate coastal flooding above the threshold of 3.6 ft MLLW occurred from 524 AM EST to 236 PM EST.

Major coastal flooding occurred at the Watch Hill USGS tidal gauge on Fire Island, with water levels above the major threshold of 4.2 ft MLLW from 706 AM EST to 1236 AM EST,

and a peak water level of 4.9 ft MLLW from 1012 AM EST to 1018 AM EST. Moderate coastal flooding above the threshold of 3.7 ft MLLW occurred from 606 AM EST to 206 PM EST.

Strong low pressure moving northeast from the Mid Atlantic region to southern New England during the night of January 9, 2024 into the early morning hours of January 10, 2024 produced high winds, which combined with high astronomical tides associated with an upcoming new moon to produce widespread moderate to major coastal flooding along the south shore of Long Island and along the Hudson River in Southeast New York.