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 17 at 4:30AM EDT until April 18 at 8:00AM EDT by NWS Marquette MI

Effective: Fri April 17, 2026, 4:30 AM
Expires: Fri April 17, 2026, 8:30 PM

Snowmelt will continue through today with increasingly warm temperatures and humidity. Thunderstorms are possible late this afternoon into this evening, which could bring over a half inch of rainfall, adding to the flood risk. * 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, Northern Schoolcraft and Southern Schoolcraft. In western Upper Michigan, Keweenaw, Northern Houghton and Southern Houghton. * WHEN...Through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Snowmelt continues today with rainfall coming late this afternoon through this evening. - 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 17 at 1:39PM EDT by NWS Marquette MI

Effective: Fri April 17, 2026, 1:39 PM
Expires: Sat April 18, 2026, 9:45 AM

...The Flood Warning is extended for the following rivers in Michigan... Middle Branch Escanaba River at Humboldt affecting Marquette County. East Branch Escanaba River at Gwinn affecting Marquette County. Paint River at Crystal Falls (Paint) affecting Iron County. ...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Houghton and Baraga Counties. .Heavy rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. * 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 4:00 PM EDT Thursday the stage was 11.1 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 PM EDT Thursday was 11.1 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 Saturday morning at 945 AM EDT /845 AM CDT/.

Flood Warning issued April 17 at 12:39PM CDT by NWS Marquette MI

Effective: Fri April 17, 2026, 1:39 PM
Expires: Sat April 18, 2026, 9:45 AM

...Forecast flooding changed from Moderate to Major severity for the following rivers in Michigan... Sturgeon River near Alston affecting Houghton and Baraga Counties. Michigamme River near Witch Lake affecting Marquette and Dickinson Counties. Michigamme River near Republic affecting Marquette County. Sturgeon River near Nahma Junction affecting Delta County. .Rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. * WHAT...Minor flooding is occurring and major flooding is forecast. This approaches the flood of record. * WHERE...Sturgeon River near Alston. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 12:30 PM EDT Friday the stage was 9.5 feet. - Bankfull stage is 7.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:30 PM EDT Friday was 9.5 feet. - Forecast...The river is expected to rise to a crest of 14.0 feet tomorrow evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 13.8 feet on 04/24/1960. - 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 Saturday morning at 845 AM CDT /945 AM EDT/.

Flood Advisory issued April 17 at 1:32PM EDT until April 19 at 8:00PM EDT by NWS Marquette MI

Effective: Fri April 17, 2026, 1:32 PM
Expires: Sat April 18, 2026, 9:45 AM

...The National Weather Service in Marquette has issued a Flood Advisory for the following rivers in Michigan... Sturgeon River near Sidnaw affecting Houghton and Baraga Counties. .Rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. * WHAT...Elevated river levels caused by rain and snowmelt are occurring. * WHERE...Sturgeon River near Sidnaw. * WHEN...From this afternoon to Sunday evening. * IMPACTS...At 12.0 feet, Flooding of low lying wooded lands upstream and downstream occurs * ADDITIONAL DETAILS... - At 12:45 PM EDT Friday the stage was 9.1 feet. - Bankfull stage is 11.0 feet. - Forecast...The river is expected to rise to a crest of 11.6 feet tomorrow morning. - Action stage is 11.0 feet. - Flood stage is 12.0 feet. - www.weather.gov/safety/flood

If you encounter a flooded roadway, turn around and find an alternative route. Additional information is available at www.weather.gov/marquette. The next statement will be issued Saturday morning at 945 AM EDT.