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 10 at 11:05AM EDT until April 15 at 8:00AM EDT by NWS Marquette MI

Effective: Fri April 10, 2026, 11:05 AM
Expires: Sat April 11, 2026, 6:15 AM

* WHAT...Flooding caused by rain and snowmelt is 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, Gogebic, Keweenaw, Northern Houghton, Ontonagon and Southern Houghton. * WHEN...From Saturday evening through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * 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 11 at 1:45AM EDT until April 15 at 8:00AM EDT by NWS Marquette MI

Effective: Sat April 11, 2026, 1:45 AM
Expires: Sat April 11, 2026, 5:00 PM

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, Alger, Baraga, Delta, Dickinson, Iron, Luce, Marquette, Menominee, Northern Schoolcraft and Southern Schoolcraft. In western Upper Michigan, Gogebic, Keweenaw, Northern Houghton, Ontonagon and Southern Houghton. * WHEN...From this evening through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * 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 10 at 10:41PM EDT by NWS Marquette MI

Effective: Fri April 10, 2026, 10:41 PM
Expires: Sat April 11, 2026, 12:00 PM

...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Alston affecting Houghton and Baraga Counties. .Warming temperatures will accelerate snowmelt over the weekend into early next week. Flows in rivers will increase quickly and reach critical levels. Rainfall is also likely during this time period which could result in rivers rising above the current forecast. * WHAT...Minor flooding is forecast. * WHERE...Sturgeon River near Alston. * WHEN...From late Monday night until further notice. * IMPACTS...At 11.0 feet, Additional homes and structures near the river are impacted and evacuations may be necessary. Water levels may reach the bottom of Froberg bridge in addition to other bridges that cross the river * ADDITIONAL DETAILS... - At 9:30 PM EDT Friday the stage was 5.4 feet. - Bankfull stage is 7.5 feet. - Forecast...The river is expected to rise above flood stage early Tuesday morning and continue rising to 9.7 feet Friday, April 17. Additional rises are possible thereafter. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 9.7 feet on 04/27/1979. - 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 afternoon at noon EDT.