Dec 29, 2025
A surface low pressure rapidly deepened 22 mb in 24 hours as it tracked northeastward from the mid-Mississippi Valley to Chicago to the Georgian Bay, bringing blizzard conditions to the UP on the 28th and 29th. Rain turned to snow during the afternoon and evening of the 28th with a few inches of heavy, wet snow developing and sticking to trees. As the low moved east, cold air quickly rushed in and heavy snow continued through the early morning hours of the 29th. Winds increased from the north wi
Source: NOAA National Weather Service Storm Events Database (event 1307838). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Keweenaw County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.