National Weather Service United States Department of Commerce


A cold front tracking through southeast Michigan during the afternoon hours of July 21, 2022 led to widespread thunderstorm development and severe weather reports across the area. Initially discrete cells developed just after noon along a north-south oriented instability gradient situated over central MI. These cells moved west to east at 40 mph between approximately 1 PM and 4 PM, growing upscale into a broken line as they progressed. At times these storms exhibited rotation and associated supercellular characteristics, although the main threat with these storms was damaging winds. Several reports of trees and powerlines down as well as a 66 mph wind gust at Detroit Metro Airport were recorded. A second round of storms developed between 4-6 PM as the cold front cleared the area, primarily impacting the extreme eastern portions of the CWA near the Lake Huron shoreline. Storms once again grew upscale quickly and resulted in strong wind gusts.

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