Coastal Flood in Southern Nassau, New York

Coastal Flood May 7, 2020 · Southern Nassau, New York

What the National Weather Service wrote

The moderate coastal flood threshold of 6.2 ft MLLW was touched at the USGS tidal gauge at Hudson Bay at Freeport from 2020-05-07 20:00 EST to 2020-05-07 20:12 EST.

The wider storm

Residual 3 to 4 foot southeast to south swell on the ocean waters after the passage of low pressure to the south and east helped prevent water drainage from the Long Island south shore back bays. This in combination with unusually high astronomical tides associated with the full moon of the 7th led to isolated moderate coastal flooding along the south shore back bays of Nassau County during the morning high tide cycles of the 7th and 8th.

Source: NOAA Storm Events Database, event 929041. Narratives are written by the National Weather Service forecast office that issued the report.

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