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Marine Thunderstorm Wind · Atlantic North

Marine Thunderstorm Wind June 19, 2025 · South Shore Bays From Jones Inlet Through Shinnecock Bay, Atlantic North

54 mph

Measured gust (47 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Mesonet site XHCK at Great South Bay measured a 47 knot gust.

The wider storm

A pre-frontal trough approached at the surface out ahead of a cold front. Aloft, a shortwave trough led to falling heights into the afternoon. These features combined with MLCAPE values between 1000 and 2000 J/kg and moderate shear allowed for thunderstorms to develop and become organized. These storms produced damaging wind gusts over the waters.

Began near Amityville Wxflow (40.6589, -73.3996).

Source: NOAA Storm Events Database, event 1257220. Narratives are written by the National Weather Service forecast office that issued the report.

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