Heat in Menominee, Michigan
Heat June 30, 2026 · Menominee, Michigan
What the National Weather Service wrote
The AWOS site KMNM at the Menominee Marinette Twin County Airport reported heat index values exceeding 100 degrees from 12:57 PM to 4:47 PM with a peak heat index of 108 degrees at 2:57.
Additionally, the La Branche RAWS site, LBRM4, reported heat index values in excess of 100 from 11 AM through 3 PM, peaking at 105 at 3 PM.
The wider storm
As a significant ridge was over the southeastern US, hot and unstable air was over Michigan's Upper Peninsula by the 30th. This warm and moist air caused unseasonable heat impacts, and forcing from an approaching upper level disturbance over the Canadian Prairie initiated thunderstorms that caused multiple forms of severe weather, including the first confirmed tornado for the Upper Peninsula since 2020.
Other tornadoes from the same storm system
1 more tornado the National Weather Service filed under this storm episode.
Source: NOAA Storm Events Database, event 1345537. Narratives are written by the National Weather Service forecast office that issued the report.
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