Marine Thunderstorm Wind — Manitou Island To Point Isabelle Mi, Lake Superior
2011-09-12 · near Bete Grise Light, Manitou Island To Point Isabelle Mi, Lake Superior
40 MG
Magnitude
Event narrative
Wind gusts of 45 mph or greater were measured by the Copper Harbor ASOS.
Wider weather episode
A powerful cold front produced strong to severe thunderstorms over Lake Superior on the evening of the 12th.
View location on OpenStreetMap → (47.4760, -87.9023)
Source: NOAA Storm Events Database, event_id 347154. Narrative written by the NWS forecast office that issued the report.