Marine Thunderstorm Wind — St Marys River From Point Iroquois To E Potagannissing Bay, Lake Superior
2025-08-09 · near Brimley, St Marys River From Point Iroquois To E Potagannissing Bay, Lake Superior
35 MG
Magnitude
Event narrative
Gust to 40mph at MDOT site near Dafter, MI.
Wider weather episode
Very hot weather continued. Upstream convection tracked into the region in the evening, decaying quickly with eastward extent, but did result in some gusty winds at the northwest Lower MI lakeshore and across parts of the EUP.
View location on OpenStreetMap → (46.3700, -84.4300)
Source: NOAA Storm Events Database, event_id 1297451. Narrative written by the NWS forecast office that issued the report.