Marine Weather Message
Issued by NWS Marquette, MI

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826
WHUS73 KMQT 030823
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
323 AM EST Wed Dec 3 2025

LSZ244-032030-
/O.CON.KMQT.SC.Y.0189.000000T0000Z-251203T1200Z/
/O.UPG.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.GL.W.0057.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.UP.W.0017.251204T0000Z-251204T1200Z/
Eagle River to Manitou Island MI-
323 AM EST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...GALE WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST
THURSDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING
TO 7 AM EST THURSDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20
  kt with gusts up to 25 kt and waves 4 to 6 ft occurring. For
  the Gale Warning, northwest winds 20 to 30 kt with gusts up to
  35 kt and waves 6 to 11 ft expected. For the Heavy Freezing
  Spray Warning, heavy freezing spray at a rate of 2 cm per hour
  or greater expected, and may rapidly accumulate on vessels.

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

* WHEN...For the Small Craft Advisory, until 7 AM EST this
  morning. For the Gale Warning, from 7 AM this morning to 7 AM
  EST Thursday. For the Heavy Freezing Spray Warning, from 7 PM
  this evening to 7 AM EST Thursday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ263-032030-
/O.UPG.KMQT.GL.A.0033.251203T2100Z-251204T0600Z/
/O.NEW.KMQT.GL.W.0057.251203T2100Z-251204T0600Z/
/O.NEW.KMQT.UP.W.0017.251204T0000Z-251204T1200Z/
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-
323 AM EST Wed Dec 3 2025

...GALE WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EST
THURSDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING
TO 7 AM EST THURSDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with
  gusts up to 35 kt and waves 6 to 9 ft expected. For the Heavy
  Freezing Spray Warning, heavy freezing spray at a rate of 2 cm
  per hour or greater expected, and may rapidly accumulate on
  vessels.

* WHERE...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...For the Gale Warning, from 4 PM this afternoon to 1 AM
  EST Thursday. For the Heavy Freezing Spray Warning, from 7 PM
  this evening to 7 AM EST Thursday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ264-266-032030-
/O.UPG.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.GL.W.0057.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.UP.W.0017.251204T0000Z-251204T1200Z/
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
323 AM EST Wed Dec 3 2025

...GALE WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST
THURSDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING
TO 7 AM EST THURSDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with
  gusts up to 40 kt and waves 9 to 14 ft expected. For the Heavy
  Freezing Spray Warning, heavy freezing spray at a rate of 2 cm
  per hour or greater expected, and may rapidly accumulate on
  vessels.

* WHERE...Lake Superior from Upper Entrance to Portage Canal to
  Manitou Island MI 5NM off shore to the US/Canadian Border and
  Lake Superior East of a line from Manitou Island to Marquette
  MI and West of a line from Grand Marais MI to the US/Canadian
  Border Beyond 5NM from shore.

* WHEN...For the Gale Warning, from 7 AM this morning to 7 AM
  EST Thursday. For the Heavy Freezing Spray Warning, from 7 PM
  this evening to 7 AM EST Thursday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ241-032030-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251203T2100Z/
/O.UPG.KMQT.GL.A.0033.251203T2100Z-251204T0600Z/
/O.NEW.KMQT.GL.W.0057.251203T2100Z-251204T0600Z/
Black River to Ontonagon MI-
323 AM EST Wed Dec 3 2025 /223 AM CST Wed Dec 3 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST /3 PM
CST/ THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM EST /3 PM CST/ THIS AFTERNOON
TO 1 AM EST /MIDNIGHT CST/ THURSDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 30 kt and waves 4 to 7 ft occurring. For
  the Gale Warning, northwest winds around 25 kt with gusts up
  to 35 kt and waves 7 to 9 ft expected.

* WHERE...Black River to Ontonagon MI.

* WHEN...For the Small Craft Advisory, until 4 PM EST /3 PM CST/
  this afternoon. For the Gale Warning, from 4 PM EST /3 PM CST/
  this afternoon to 1 AM EST /midnight CST/ Thursday.

* 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.

&&

$$

LSZ242-032030-
/O.CON.KMQT.SC.Y.0189.000000T0000Z-251203T2100Z/
/O.UPG.KMQT.GL.A.0033.251203T2100Z-251204T0600Z/
/O.NEW.KMQT.GL.W.0057.251203T2100Z-251204T0600Z/
Ontonagon to Upper Entrance of Portage Canal MI-
323 AM EST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EST
THURSDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 30 kt and waves 5 to 8 ft occurring. For
  the Gale Warning, northwest winds 20 to 30 kt with gusts up to
  35 kt and waves 7 to 10 ft expected.

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

* WHEN...For the Small Craft Advisory, until 4 PM EST this
  afternoon. For the Gale Warning, from 4 PM this afternoon to 1
  AM EST Thursday.

* 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.

&&

$$

LSZ243-032030-
/O.CON.KMQT.SC.Y.0189.000000T0000Z-251203T1200Z/
/O.UPG.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.GL.W.0057.251203T1200Z-251204T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
323 AM EST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...GALE WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST
THURSDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20
  kt with gusts up to 25 kt and waves 5 to 6 ft occurring. For
  the Gale Warning, northwest winds 20 to 30 kt with gusts up to
  35 kt and waves 6 to 9 ft expected.

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

* WHEN...For the Small Craft Advisory, until 7 AM EST this
  morning. For the Gale Warning, from 7 AM this morning to 7 AM
  EST Thursday.

* 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.

&&

$$

LSZ245>251-032030-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251203T1200Z/
/O.UPG.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.GL.W.0057.251203T1200Z-251204T1200Z/
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-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
323 AM EST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...GALE WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST
THURSDAY...

* WHAT...For the Small Craft Advisory, west winds 10 to 20 kt
  with gusts up to 25 kt and waves 1 to 3 ft occurring. For the
  Gale Warning, northwest winds 20 to 30 kt with gusts up to 35
  kt and waves 7 to 12 ft expected.

* WHERE...Portions of Central and Eastern Lake Superior.

* WHEN...For the Small Craft Advisory, until 7 AM EST this
  morning. For the Gale Warning, from 7 AM this morning to 7 AM
  EST Thursday.

* 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.

&&

$$

LSZ265-267-032030-
/O.UPG.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
/O.NEW.KMQT.GL.W.0057.251203T1200Z-251204T1200Z/
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
323 AM EST Wed Dec 3 2025

...GALE WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST
THURSDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and
  waves 9 to 14 ft expected.

* WHERE...Lake Superior West of Line from Manitou Island to
  Marquette MI Beyond 5NM from shore and Lake Superior from
  Grand Marais MI to Whitefish Point MI 5NM off shore to the
  US/Canadian border.

* WHEN...From 7 AM this morning to 7 AM EST Thursday.

* 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.

&&

$$

LSZ240-032030-
/O.EXT.KMQT.SC.Y.0191.000000T0000Z-251204T1200Z/
Saxon Harbor WI to Black River MI-
323 AM EST Wed Dec 3 2025 /223 AM CST Wed Dec 3 2025/

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST /6 AM CST/
THURSDAY...

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

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

* WHEN...Until 7 AM EST /6 AM CST/ Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-248-250-032030-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251204T1200Z/
/O.NEW.KMQT.GL.A.0034.251205T0300Z-251205T1200Z/
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-
323 AM EST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 30 kt and waves 2 to 5 ft occurring. For
  the Gale Watch, southwest winds 20 to 30 kt with gusts up to
  35 kt and waves 5 to 8 ft possible.

* 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...For the Small Craft Advisory, until 7 AM EST Thursday.
  For the Gale Watch, from Thursday evening through Friday
  morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

GS