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Marine Thunderstorm Wind · Lake Superior
Marine Thunderstorm Wind August 5, 2019 · Grand Marais To Whitefish Point Mi, Lake Superior
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
The GLOS station at Grand Marais Light measured a thunderstorm wind gust of 58 mph.
The wider storm
A cold front moving across a moist and unstable air mass produced isolated severe thunderstorms over portions of Lake Superior on the afternoon of the 5th.
Began near Grand Marais Light (46.6787, -85.9726).
Source: NOAA Storm Events Database, event 848893. Narratives are written by the National Weather Service forecast office that issued the report.
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