Marine Thunderstorm Wind — Sand Is To Bayfield Wi, Lake Superior

2017-09-03 · near Sand Island, Sand Is To Bayfield Wi, Lake Superior

Event narrative

Moored boats were severely damaged as thunderstorm winds pushed them into the shoreline.

Wider weather episode

Strong thunderstorm-induced winds and waves battered the shorelines of Sand, Rocky and Outer Islands of the Apostle Islands. The winds and waves damaged moored boats by pushing the boats into shore. Two of the eight vessels involved had to be towed back to the mainland and one was partially sunk.

View location on OpenStreetMap → (46.9796, -90.9346)

Source: NOAA Storm Events Database, event_id 721132. Narrative written by the NWS forecast office that issued the report.