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Marine Thunderstorm Wind · Atlantic South

Marine Thunderstorm Wind June 18, 2026 · Charleston Harbor, Atlantic South

43 mph

Measured gust (37 kt)

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

What the National Weather Service wrote

The Weatherflow sensor at Fort Sumter Range Front Light measured wind gusts of at least 34 knots between 514 PM and 519 PM with a peak wind gust of 37 knots at 519 PM.

The wider storm

Hot and humid conditions persisting across the region and a closed low across the Deep South led to an environment favorable for strong to severe thunderstorms across coastal waters.

Began near Shutes Folly Weatherflow (32.7500, -79.8700).

Source: NOAA Storm Events Database, event 1356969. Narratives are written by the National Weather Service forecast office that issued the report.

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