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

Lakeshore Flood Warning issued March 14 at 2:36PM EDT until March 16 at 11:00PM EDT by NWS Marquette MI

Effective: Sat March 14, 2026, 2:36 PM
Expires: Sun March 15, 2026, 8:15 AM

* WHAT...Significant lakeshore flooding expected with wave heights of 15 to 25 feet possible. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From 8 PM Sunday to 11 PM EDT Monday. * IMPACTS...Numerous roads closed and low lying property including parking lots, lawns, and homes and businesses will be inundated near the lake. Some shoreline erosion will occur.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Blizzard Warning issued March 15 at 12:59AM EDT until March 17 at 2:00AM EDT by NWS Marquette MI

Effective: Sun March 15, 2026, 12:59 AM
Expires: Sun March 15, 2026, 5:00 PM

* WHAT...Blizzard conditions expected. Total snow accumulations between 1 and 2 feet. Winds gusting as high as 60 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From 5 AM early this morning to 2 AM EDT Tuesday. * IMPACTS...Travel will be treacherous and potentially life-threatening. Widespread blowing snow and heavy snowfall rates will significantly reduce visibility. Very strong winds could cause extensive tree damage and result in power outages. * ADDITIONAL DETAILS...Heavy snowfall rates of 1 to 2 inches per hour are expected much of the day today. Strongest winds late this afternoon into Monday.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.