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Marine Thunderstorm Wind · Atlantic North

Marine Thunderstorm Wind September 8, 2023 · Cape Elizabeth Me To Merrimack River Ma Out 25 Nm, Atlantic North

55 mph

Measured gust (48 kt)

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

What the National Weather Service wrote

Severe thunderstorm outflow wind gusts up to 55 mph where reported at the Isle of Shoals C-Man station. A local mesonet on Appledore Island also reported a gust of 61 mph.

The wider storm

A strong mid-level trough ejected out of New York and pushed from southwest to northeast across New England during the day on September 8th. This feature had ample low level instability to work with as the region was experiencing well above normal temperatures and moisture for early September. All these ingredients came together to bring a line of strong thunderstorms that moved from the south to the north from the NH/MA border up to Casco Bay.

Began near Isle of Shoals (42.9700, -70.6200).

Source: NOAA Storm Events Database, event 1142636. Narratives are written by the National Weather Service forecast office that issued the report.

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