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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind September 7, 2021 · Duluth Mn To Pt Wing Wi, Lake Superior

49 mph

Measured gust (43 kt)

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

What the National Weather Service wrote

Measured gust by the GLOS Port Wing station PNGW3 at the Port Wing harbor.

The wider storm

A potent low level jet ahead of an advancing cold front brought a round of thunderstorms to western Lake Superior during the early morning hours of the 7th. In the wake of the cold front later in the day, a deepening surface low brought another round of storms across the lake during the afternoon and evening hours. Both rounds brought sporadic strong winds gusts to the head of the lake area.

Began near Port Wing Station Pngw3 (46.7881, -91.3911).

Source: NOAA Storm Events Database, event 984587. Narratives are written by the National Weather Service forecast office that issued the report.

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