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

Dense Smoke Advisory issued July 17 at 10:04PM EDT until July 18 at 6:00AM EDT by NWS Marquette MI

Effective: Fri July 17, 2026, 10:04 PM
Expires: Sat July 18, 2026, 10:15 AM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Huron Islands to Marquette MI and Marquette to Munising MI. * WHEN...For the Dense Smoke Advisory, until 6 AM EDT Saturday. For the Small Craft Advisory, from 4 AM to 6 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Small Craft Advisory issued July 17 at 10:04PM EDT until July 18 at 6:00PM EDT by NWS Marquette MI

Effective: Fri July 17, 2026, 10:04 PM
Expires: Sat July 18, 2026, 10:15 AM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Huron Islands to Marquette MI and Marquette to Munising MI. * WHEN...For the Dense Smoke Advisory, until 6 AM EDT Saturday. For the Small Craft Advisory, from 4 AM to 6 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Small Craft Advisory issued July 18 at 4:23AM EDT until July 18 at 6:00PM EDT by NWS Marquette MI

Effective: Sat July 18, 2026, 4:23 AM
Expires: Sat July 18, 2026, 4:30 PM

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft occurring. For the Dense Smoke Advisory, dense smoke will reduce visibility to less than one nautical mile. * WHERE...Huron Islands to Marquette MI and Marquette to Munising MI. * WHEN...For the Small Craft Advisory, until 6 PM EDT this evening. For the Dense Smoke Advisory, from 8 AM this morning to 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Dense Smoke Advisory issued July 18 at 4:23AM EDT until July 19 at 8:00PM EDT by NWS Marquette MI

Effective: Sat July 18, 2026, 4:23 AM
Expires: Sat July 18, 2026, 4:30 PM

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft occurring. For the Dense Smoke Advisory, dense smoke will reduce visibility to less than one nautical mile. * WHERE...Huron Islands to Marquette MI and Marquette to Munising MI. * WHEN...For the Small Craft Advisory, until 6 PM EDT this evening. For the Dense Smoke Advisory, from 8 AM this morning to 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.