Station Name: South Entry Buoy, South Keweenaw Peninsula, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet

Nearest Address:
Offshore
Jacobsville, MI
Houghton County

GPS Coordinates: 46.969, -88.398

Nearby Water Temperatures

Flood Watch issued April 23 at 7:45AM EDT until April 25 at 8:00AM EDT by NWS Marquette MI

Effective: Thu April 23, 2026, 7:45 AM
Expires: Fri April 24, 2026, 12:00 AM

Heavy rain may fall on a deep primed snowpack leading to the melt increasing. Flows in rivers may increase quickly and reach critical levels. * 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, Baraga, Dickinson, Iron and Marquette. In western Upper Michigan, Keweenaw, Northern Houghton, Ontonagon and Southern Houghton. * WHEN...From this evening through Saturday morning. * 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 23 at 1:41PM EDT until April 25 at 8:00AM EDT by NWS Marquette MI

Effective: Thu April 23, 2026, 1:41 PM
Expires: Fri April 24, 2026, 6:00 AM

Heavy rain may fall on a deep primed snowpack leading to the melt increasing. Flows in rivers may increase quickly and reach critical levels. * 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, Baraga, Dickinson, Iron and Marquette. In western Upper Michigan, Keweenaw, Northern Houghton, Ontonagon and Southern Houghton. * WHEN...From 8 PM EDT /7 PM CDT/ this evening through Saturday morning. * 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 Warning issued April 23 at 1:32PM EDT by NWS Marquette MI

Effective: Thu April 23, 2026, 1:32 PM
Expires: Fri April 24, 2026, 6:00 AM

...The Flood Warning is extended for the following rivers in Michigan... Sturgeon River near Alston affecting Houghton and Baraga Counties. ...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Houghton and Baraga Counties. Michigamme River near Crystal Falls (Michigamme) affecting Iron County. Michigamme River near Republic affecting Marquette County. .Snow melt and increased reservoir releases will cause the river flows to become high. Expect minor flooding downstream from the dam. * WHAT...Minor flooding is occurring. * WHERE...Sturgeon River near Chassell. * WHEN...Until further notice. * IMPACTS...At 10.5 feet, The river begins to overflow onto Sturgeon River Road...Rajala Road...and Aho Road * ADDITIONAL DETAILS... - At 8:00 AM EDT Thursday the stage was 10.7 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM EDT Thursday was 10.7 feet. - Forecast...No forecast is available for this location. - Flood stage is 10.5 feet. - Flood History...This crest compares to a previous crest of 11.2 feet on 04/18/2023. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Friday morning at 600 AM EDT /500 AM CDT/.

Flood Warning issued April 23 at 1:32PM EDT until April 28 at 8:00PM EDT by NWS Marquette MI

Effective: Thu April 23, 2026, 1:32 PM
Expires: Fri April 24, 2026, 6:00 AM

...The Flood Warning is extended for the following rivers in Michigan... Sturgeon River near Alston affecting Houghton and Baraga Counties. ...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Houghton and Baraga Counties. Michigamme River near Crystal Falls (Michigamme) affecting Iron County. Michigamme River near Republic affecting Marquette County. .Snow melt and increased reservoir releases will cause the river flows to become high. Expect minor flooding downstream from the dam. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sturgeon River near Alston. * WHEN...Until Tuesday evening. * IMPACTS...At 8.0 feet, Homes and structures along the low lying areas and numerous roads become impacted by flood water. In Houghton County...Sturgeon River Road...Aho Road...and Rajala Road are impacted. In Baraga County...Sturgeon Road...Halonen Road and Usitalo Road are impacted. Along Froberg Road...Tahtinen Road... Irwin Road...Oliver Road...and Shirley Road are impacted. * ADDITIONAL DETAILS... - At 12:30 PM EDT Thursday the stage was 8.1 feet. - Bankfull stage is 7.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:30 PM EDT Thursday was 8.2 feet. - Forecast...The river is expected to rise to a crest of 9.2 feet Saturday morning. It will then fall below flood stage Monday evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 9.2 feet on 04/01/1986. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Friday morning at 600 AM EDT /500 AM CDT/.