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Marine Thunderstorm Wind · Lake Michigan

Marine Thunderstorm Wind August 10, 2020 · Calumet Harbor Il To Gary in, Lake Michigan

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

Winds gusted over 34 knots for an hour at the Gary/Chicago International Airport, just south of Buffington Harbor. A peak gust of 48 knots occurred at 1516 CST.

The wider storm

During the afternoon of Monday August 10th, a line of intense thunderstorms known as a derecho brought widespread severe winds to all of southern Lake Michigan. One tornado touched down near Rogers Park in Chicago and then moved over the lake as a waterspout.

Began near Buffington Harbor (41.6433, -87.4079).

Source: NOAA Storm Events Database, event 915770. Narratives are written by the National Weather Service forecast office that issued the report.

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