Marine Weather Message
Issued by NWS Marquette, MI

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080
WHUS73 KMQT 020826
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
426 AM EDT Tue Sep 2 2025

LMZ221-248-250-022030-
/O.NEW.KMQT.SC.Y.0140.250903T0200Z-250903T1200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
426 AM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 8 AM
EDT WEDNESDAY...

* WHAT...Southwest winds 15 to 20 kt with gusts up to 25 kt and
  waves 2 to 4 ft expected.

* WHERE...Green Bay North of line from Cedar River MI to Rock
  Island Passage, Seul Choix Point to Point Detour MI and 5NM
  East of a line from Fairport MI to Rock Island Passage.

* WHEN...From 10 PM this evening to 8 AM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ240-022030-
/O.NEW.KMQT.SC.Y.0140.250903T0900Z-250904T0000Z/
Saxon Harbor WI to Black River MI-
426 AM EDT Tue Sep 2 2025 /326 AM CDT Tue Sep 2 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO
8 PM EDT /7 PM CDT/ WEDNESDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and
  waves 3 to 5 ft expected.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...From 5 AM EDT /4 AM CDT/ to 8 PM EDT /7 PM CDT/
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ241>243-022030-
/O.NEW.KMQT.SC.Y.0140.250903T0800Z-250904T0000Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
426 AM EDT Tue Sep 2 2025 /326 AM CDT Tue Sep 2 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT /3 AM CDT/ TO
8 PM EDT /7 PM CDT/ WEDNESDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and
  waves 3 to 6 ft expected.

* WHERE...Black River to Ontonagon MI, Ontonagon to Upper
  Entrance of Portage Canal MI and Upper Entrance of Portage
  Canal to Eagle River MI.

* WHEN...From 4 AM EDT /3 AM CDT/ to 8 PM EDT /7 PM CDT/
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ244-022030-
/O.NEW.KMQT.SC.Y.0140.250903T1000Z-250904T0000Z/
Eagle River to Manitou Island MI-
426 AM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO 8 PM EDT
WEDNESDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
  waves 5 to 8 ft expected.

* WHERE...Eagle River to Manitou Island MI.

* WHEN...From 6 AM to 8 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ245>248-022030-
/O.NEW.KMQT.SC.Y.0140.250903T1200Z-250904T0000Z/
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
426 AM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 8 PM EDT
WEDNESDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
  waves 2 to 5 ft expected.

* WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to
  Lower Entrance of Portage Canal MI, Lower Entrance of Portage
  Canal To Huron Islands MI Including Keweenaw and Huron Bays
  and Huron Islands to Marquette MI.

* WHEN...From 8 AM to 8 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ249-250-022030-
/O.NEW.KMQT.SC.Y.0140.250903T1400Z-250904T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
426 AM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT
WEDNESDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and
  waves 5 to 8 ft expected.

* WHERE...Marquette to Munising MI and Munising to Grand Marais
  MI.

* WHEN...From 10 AM to 8 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ251-022030-
/O.NEW.KMQT.SC.Y.0140.250903T1600Z-250904T0000Z/
Grand Marais to Whitefish Point MI-
426 AM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TO 8 PM EDT
WEDNESDAY...

* WHAT...West to northwest winds 15 to 20 kt with gusts up to 25
  kt and waves 4 to 7 ft expected.

* WHERE...Grand Marais to Whitefish Point MI.

* WHEN...From noon to 8 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

TAP