Marine Thunderstorm Wind — Eagle River To Manitou Island Mi, Lake Superior
2025-07-27 · near Copper Harbor, Eagle River To Manitou Island Mi, Lake Superior
40 MG
Magnitude
Event narrative
A 40 knot wind gust was recorded at the Copper Harbor ASOS (KP59) at 1145EST. A 36 knot wind gust was recorded at 1158EST.
Wider weather episode
A line of thunderstorms moved eastward across the lake during the late morning and early afternoon on the 27th, bringing wind gusts as high as 53 knots.
View location on OpenStreetMap → (47.4700, -87.8800)
Source: NOAA Storm Events Database, event_id 1287921. Narrative written by the NWS forecast office that issued the report.