Severe Thunderstorm and Flash Flooding Threats in the South

Organized severe thunderstorms capable of producing mainly large hail and perhaps damaging winds are expected across portions of Louisiana this afternoon with a second round further west tonight. Heavy thunderstorms may lead to flash flooding over portions of the northern Gulf Coast today through Saturday. Several inches of excessive rainfall are possible with Flash Flood Watches in effect.
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Last Update: 325 PM EDT Tue Apr 13 2021

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New York, NY Local Forecast Office

17NM SE Islip NY

Marine Zone Forecast

Synopsis: ANZ300-140815- 325 PM EDT Tue Apr 13 2021 .Synopsis for the Long Island Waters and New York Harbor... High pressure moves over the waters tonight and then offshore on Wednesday. Strengthening low pressure is expected to impact the waters late Wednesday night through Friday. High pressure returns this weekend. $$

Tonight

SW winds 5 to 10 kt. Seas 3 to 4 ft.

Wed

SW winds 5 to 10 kt. Seas around 3 ft.

Wed Night

SE winds 10 to 15 kt. Seas around 3 ft. Chance of rain after midnight.

Thu

E winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Rain. Vsby 1 to 3 nm in the afternoon.

Thu Night

NE winds 15 to 20 kt, becoming N after midnight. Gusts up to 30 kt. Seas 5 to 6 ft. Rain. Vsby 1 to 3 nm in the evening.

Fri

NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain likely, mainly in the morning.