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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind September 5, 2023 · Outer Apostle Islands Beyond 5 Nm From Mainland, Lake Superior

63 mph

Measured gust (55 kt)

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

What the National Weather Service wrote

A gust of 55 knots (63 mph) was recorded at DISW3 Devils Island Lighthouse during the storm.

The wider storm

Thunderstorms developed ahead of a cold front moving across northern Minnesota during the afternoon hours of the 5th. Areas of wind damage were reported across the Iron Range and Minnesota Arrowhead as the moved to the east. As these storms moved over western Lake Superior, they continued to produce strong winds with a measured gust to 70 mph being recorded by an ore boat traversing the open waters of Lake Superior south of Lutsen.

Began near Devils Island Lighthouse (47.0800, -90.7300).

Source: NOAA Storm Events Database, event 1140783. Narratives are written by the National Weather Service forecast office that issued the report.

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