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 April 15 at 8:04PM EDT until April 16 at 10:00AM EDT by NWS Marquette MI

Effective: Wed April 15, 2026, 8:04 PM
Expires: Thu April 16, 2026, 10:00 AM

* WHAT...Visibility 1/4 mile or less in dense fog. * WHERE...Portions of central Upper and western Upper Michigan. * WHEN...Until 10 AM EDT /9 AM CDT/ Thursday. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Flood Watch issued April 15 at 3:55PM EDT until April 17 at 2:00AM EDT by NWS Marquette MI

Effective: Wed April 15, 2026, 3:55 PM
Expires: Thu April 16, 2026, 8:00 AM

* WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...Portions of central Upper and western Upper Michigan, including the following areas, in central Upper Michigan, Alger, Baraga, Delta, Dickinson, Iron, Luce, Marquette, Menominee, Northern Schoolcraft and Southern Schoolcraft. In western Upper Michigan, Keweenaw, Northern Houghton and Southern Houghton. * WHEN...Through late Thursday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Watch issued April 16 at 3:09AM EDT until April 17 at 2:00AM EDT by NWS Marquette MI

Effective: Thu April 16, 2026, 3:09 AM
Expires: Thu April 16, 2026, 7:15 PM

* WHAT...Flooding caused by snowmelt continues to be possible. * WHERE...Portions of central Upper and western Upper Michigan, including the following areas, in central Upper Michigan, Alger, Baraga, Delta, Dickinson, Iron, Luce, Marquette, Menominee, Northern Schoolcraft and Southern Schoolcraft. In western Upper Michigan, Keweenaw, Northern Houghton and Southern Houghton. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.