Station Name: EAST SUPERIOR -70 NM NE Marquette, MI
Station Type: Other
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Offshore
Copper Harbor, MI 49918
Keweenaw County

GPS Coordinates: 47.585, -86.585

Nearby Water Temperatures

Dense Fog Advisory issued November 4 at 4:35AM EST until November 4 at 10:00AM EST by NWS Marquette MI

Effective: Wed November 4, 2026, 4:35 AM
Expires: Wed November 4, 2026, 4:45 PM

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and waves 10 to 15 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...For the Dense Fog Advisory, until 10 AM EST this morning. For the Gale Warning, from 7 AM Thursday to 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult.

Gale Warning issued November 4 at 4:35AM EST until November 6 at 1:00AM EST by NWS Marquette MI

Effective: Wed November 4, 2026, 4:35 AM
Expires: Wed November 4, 2026, 4:45 PM

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and waves 10 to 15 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...For the Dense Fog Advisory, until 10 AM EST this morning. For the Gale Warning, from 7 AM Thursday to 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult.

Gale Warning issued November 4 at 10:41AM EST until November 6 at 1:00AM EST by NWS Marquette MI

Effective: Wed November 4, 2026, 10:41 AM
Expires: Wed November 4, 2026, 10:45 PM

* WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 10 to 15 ft expected. * WHERE...Portions of Central and Eastern Lake Superior. * WHEN...From 7 AM Thursday to 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.