Marine Weather Message
Issued by NWS Marquette, MI

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848
WHUS73 KMQT 051430
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
930 AM EST Fri Dec 5 2025

LSZ241-242-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T1800Z/
/O.NEW.KMQT.SC.Y.0194.251206T0000Z-251206T1800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
930 AM EST Fri Dec 5 2025 /830 AM CST Fri Dec 5 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST /NOON
CST/ THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST /6 PM CST/ THIS
EVENING TO 1 PM EST /NOON CST/ SATURDAY...

* WHAT...For the first Small Craft Advisory, southwest winds 10 to
  15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. For
  the second Small Craft Advisory, northwest winds 15 to 25 kt
  with gusts up to 30 kt and waves 5 to 8 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 1 PM EST
  /noon CST/ this afternoon. For the second Small Craft
  Advisory, from 7 PM EST /6 PM CST/ this evening to 1 PM EST
  /noon CST/ Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T2100Z/
/O.NEW.KMQT.SC.Y.0194.251206T0000Z-251206T1800Z/
Upper Entrance of Portage Canal to Eagle River MI-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST SATURDAY...

* WHAT...For the first Small Craft Advisory, southwest winds 10
  to 15 kt with gusts up to 20 kt and waves 4 to 7 ft occurring.
  For the second Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 35 kt and waves 5 to 8 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 4 PM EST this
  afternoon. For the second Small Craft Advisory, from 7 PM this
  evening to 1 PM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T2100Z/
/O.NEW.KMQT.SC.Y.0194.251206T0000Z-251207T0000Z/
Eagle River to Manitou Island MI-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 7 PM
EST SATURDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 15
  kt with gusts up to 20 kt and waves 4 to 7 ft occurring. For
  the second Small Craft Advisory, northwest winds 15 to 25 kt
  with gusts up to 35 kt and waves 6 to 9 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 4 PM EST this
  afternoon. For the second Small Craft Advisory, from 7 PM this
  evening to 7 PM EST Saturday.

* 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>247-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T1800Z/
/O.NEW.KMQT.SC.Y.0194.251206T0400Z-251206T1800Z/
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-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 1 PM
EST SATURDAY...

* WHAT...For the first Small Craft Advisory, southwest winds 10
  to 20 kt with gusts up to 25 kt and waves 1 to 3 ft occurring.
  For the second Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 30 kt and waves 1 to 4 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 1 PM EST this
  afternoon. For the second Small Craft Advisory, from 11 PM
  this evening to 1 PM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T1800Z/
/O.NEW.KMQT.SC.Y.0194.251206T0600Z-251207T0000Z/
Huron Islands to Marquette MI-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 7 PM EST
SATURDAY...

* WHAT...For the first Small Craft Advisory, southwest winds 10
  to 15 kt with gusts up to 25 kt and waves 1 to 2 ft occurring.
  For the second Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 30 kt and waves 4 to 7 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...For the first Small Craft Advisory, until 1 PM EST this
  afternoon. For the second Small Craft Advisory, from 1 AM to 7
  PM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-060230-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T1800Z/
/O.NEW.KMQT.SC.Y.0194.251206T0800Z-251207T0000Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 7 PM EST
SATURDAY...

* WHAT...For the first Small Craft Advisory, southwest winds 10
  to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring.
  For the second Small Craft Advisory, northwest winds 15 to 25
  kt with gusts up to 35 kt and waves 6 to 11 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 1 PM EST this
  afternoon. For the second Small Craft Advisory, from 3 AM to 7
  PM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-060230-
/O.NEW.KMQT.SC.Y.0194.251206T0000Z-251206T1200Z/
Saxon Harbor WI to Black River MI-
930 AM EST Fri Dec 5 2025 /830 AM CST Fri Dec 5 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST /6 PM CST/ THIS
EVENING TO 7 AM EST /6 AM CST/ SATURDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and
  waves 2 to 5 ft expected.

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

* WHEN...From 7 PM EST /6 PM CST/ this evening to 7 AM EST /6 AM
  CST/ Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249-060230-
/O.NEW.KMQT.SC.Y.0194.251206T0800Z-251207T0000Z/
Marquette to Munising MI-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 7 PM EST
SATURDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
  waves 7 to 10 ft expected.

* WHERE...Marquette to Munising MI.

* WHEN...From 3 AM to 7 PM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-051700-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T1700Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
  waves 2 to 5 ft occurring.

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

* WHEN...Until noon EST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-250-052100-
/O.CON.KMQT.SC.Y.0193.000000T0000Z-251205T2100Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
930 AM EST Fri Dec 5 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 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 4 PM EST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$