Marine Weather Message
Issued by NWS Marquette, MI

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175
WHUS73 KMQT 060644
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
244 AM EDT Mon Oct 6 2025

LSZ241-061500-
/O.CON.KMQT.GL.W.0042.000000T0000Z-251006T0900Z/
/O.EXB.KMQT.SC.Y.0154.251006T0900Z-251006T1500Z/
Black River to Ontonagon MI-
244 AM EDT Mon Oct 6 2025 /144 AM CDT Mon Oct 6 2025/

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EDT /4 AM CDT/ EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT /10 AM CDT/
THIS MORNING...

* WHAT...For the Gale Warning, northwest winds 15 to 20 kt with
  gusts up to 35 kt and waves 5 to 7 ft occurring. For the Small
  Craft Advisory, northwest winds 10 to 15 kt with gusts up to
  25 kt and waves 3 to 5 ft expected.

* WHERE...Black River to Ontonagon MI.

* WHEN...For the Gale Warning, until 5 AM EDT /4 AM CDT/ early
  this morning. For the Small Craft Advisory, until 11 AM EDT
  /10 AM CDT/ this morning.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ242-061500-
/O.CON.KMQT.GL.W.0042.000000T0000Z-251006T0900Z/
/O.NEW.KMQT.SC.Y.0156.251006T0900Z-251006T1500Z/
Ontonagon to Upper Entrance of Portage Canal MI-
244 AM EDT Mon Oct 6 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...For the Gale Warning, west winds 15 to 20 kt with gusts
  up to 35 kt and waves 5 to 7 ft occurring. For the Small Craft
  Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt
  and waves 3 to 6 ft expected.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI.

* WHEN...For the Gale Warning, until 5 AM EDT early this
  morning. For the Small Craft Advisory, until 11 AM EDT this
  morning.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ162-263-060900-
/O.CON.KMQT.GL.W.0042.000000T0000Z-251006T0900Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
244 AM EDT Mon Oct 6 2025 /144 AM CDT Mon Oct 6 2025/

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EDT /4 AM CDT/ EARLY
THIS MORNING...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 35 kt and
  waves 5 to 8 ft occurring.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to
  Grand Portage MN beyond 5NM and Lake Superior from Saxon
  Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore
  to the US/Canadian border including Isle Royale National Park.

* WHEN...Until 5 AM EDT /4 AM CDT/ early this morning.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ243-244-061845-
/O.NEW.KMQT.SC.Y.0156.251006T0644Z-251007T1500Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT TUESDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves
  4 to 7 ft occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI and
  Eagle River to Manitou Island MI.

* WHEN...Until 11 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246>248-061845-
/O.NEW.KMQT.SC.Y.0156.251006T0644Z-251007T1500Z/
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-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT TUESDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
  up to 3 ft occurring.

* WHERE...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...Until 11 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249-250-061845-
/O.NEW.KMQT.SC.Y.0156.251006T0644Z-251007T2100Z/
Marquette to Munising MI-Munising to Grand Marais MI-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT TUESDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
  3 to 6 ft occurring.

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

* WHEN...Until 5 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ245-061845-
/O.EXB.KMQT.SC.Y.0154.000000T0000Z-251007T1500Z/
Manitou Island to Point Isabelle MI-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT TUESDAY...

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

* WHERE...Manitou Island to Point Isabelle MI.

* WHEN...Until 11 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-060900-
/O.CON.KMQT.SC.Y.0154.000000T0000Z-251006T0900Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EDT EARLY
THIS MORNING...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
  waves 2 to 4 ft occurring.

* WHERE...Green Bay North of line from Cedar River MI to Rock
  Island Passage.

* WHEN...Until 5 AM EDT early this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-060900-
/O.CON.KMQT.SC.Y.0154.000000T0000Z-251006T0900Z/
Saxon Harbor WI to Black River MI-
244 AM EDT Mon Oct 6 2025 /144 AM CDT Mon Oct 6 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EDT /4 AM
CDT/ EARLY THIS MORNING...

* WHAT...Northwest winds around 15 kt with gusts up to 30 kt and
  waves 3 to 5 ft occurring.

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

* WHEN...Until 5 AM EDT /4 AM CDT/ early this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ251-061845-
/O.CON.KMQT.SC.Y.0154.000000T0000Z-251007T0000Z/
Grand Marais to Whitefish Point MI-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
  waves 3 to 6 ft occurring.

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

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-250-061500-
/O.CON.KMQT.SC.Y.0154.000000T0000Z-251006T1500Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
244 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
  4 to 7 ft occurring.

* WHERE...Seul Choix Point to Point Detour MI and 5NM East of a
  line from Fairport MI to Rock Island Passage.

* WHEN...Until 11 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$