Marine Weather Message
Issued by NWS Marquette, MI

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896
WHUS73 KMQT 171434
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1034 AM EDT Fri Oct 17 2025

LMZ221-180245-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0600Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1034 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and
  waves 2 to 5 ft occurring.

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

* WHEN...Until 2 AM EDT 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.

&&

$$

LSZ240-180000-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0000Z/
Saxon Harbor WI to Black River MI-
1034 AM EDT Fri Oct 17 2025 /934 AM CDT Fri Oct 17 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM
CDT/ THIS EVENING...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 2 ft occurring.

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

* WHEN...Until 8 PM EDT /7 PM CDT/ 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.

&&

$$

LSZ241>243-180000-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0000Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
1034 AM EDT Fri Oct 17 2025 /934 AM CDT Fri Oct 17 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM
CDT/ THIS EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 2 ft occurring.

* 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...Until 8 PM EDT /7 PM CDT/ 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.

&&

$$

LSZ247-180245-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0300Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1034 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 2 ft occurring.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI
  Including Keweenaw and Huron Bays.

* WHEN...Until 11 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.

&&

$$

LSZ248-172100-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251017T2100Z/
Huron Islands to Marquette MI-
1034 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 2 ft occurring.

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 5 PM EDT 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.

&&

$$

LSZ249>251-180245-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0400Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
1034 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and
  waves 1 to 2 ft occurring.

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

* WHEN...Until midnight EDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-250-180245-
/O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T1200Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1034 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
SATURDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and
  waves 6 to 9 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 8 AM EDT 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.

&&

$$