Excessive Heat in Alger, Michigan
Excessive Heat June 30, 2026 · Alger, Michigan
What the National Weather Service wrote
The RAWS site DOEM4 at Doe Lake reported heat index values from 107 to 109 degrees from noon EST through 4 PM with heat index in excess of 100 degrees in the 1 hour preceding and 2 hours following that time period. Additionally, the ASOS site KP53 at the Munising Lakeshore reached a peak heat index of 105 degrees at 3:56 PM despite the close proximity to the cooling influence of Lake Superior.
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 1345546. Narratives are written by the National Weather Service forecast office that issued the report.
Tornadoes near your address
See every tornado that passed near a place you know, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.