Marine Weather Message
Issued by NWS Marquette, MI

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570
WHUS73 KMQT 140020
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
820 PM EDT Mon Oct 13 2025

LSZ242-140400-
/O.EXT.KMQT.SC.Y.0160.000000T0000Z-251014T0400Z/
Ontonagon to Upper Entrance of Portage Canal MI-
820 PM EDT Mon Oct 13 2025

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

* WHAT...West to northwest winds around 15 kt with gusts up to 25
  kt and waves 3 to 5 ft occurring.

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

&&

$$

LSZ243-141000-
/O.EXT.KMQT.SC.Y.0160.000000T0000Z-251014T1000Z/
Upper Entrance of Portage Canal to Eagle River MI-
820 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EDT TUESDAY...

* WHAT...West to northwest winds 15 to 20 kt with gusts up to 25
  kt and waves 4 to 6 ft occurring.

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

* WHEN...Until 6 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.

&&

$$

LSZ244-141230-
/O.EXT.KMQT.SC.Y.0161.000000T0000Z-251014T1500Z/
Eagle River to Manitou Island MI-
820 PM EDT Mon Oct 13 2025

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

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

* WHERE...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.

&&

$$

LSZ245-140900-
/O.EXT.KMQT.SC.Y.0161.000000T0000Z-251014T0900Z/
Manitou Island to Point Isabelle MI-
820 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM EDT TUESDAY...

* WHAT...West to northwest winds 10 to 20 kt with gusts up to 25
  kt and waves 1 to 3 ft occurring.

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

* WHEN...Until 5 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.

&&

$$

LSZ246-247-140300-
/O.EXT.KMQT.SC.Y.0160.000000T0000Z-251014T0300Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
820 PM EDT Mon Oct 13 2025

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

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

* WHERE...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...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.

&&

$$

LSZ249-141230-
/O.EXT.KMQT.SC.Y.0161.251014T0600Z-251014T1800Z/
Marquette to Munising MI-
820 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 2 PM EDT
TUESDAY...

* WHAT...Northwest to north winds 10 to 20 kt and waves 2 to 5 ft
  expected.

* WHERE...Marquette to Munising MI.

* WHEN...From 2 AM to 2 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.

&&

$$

LSZ250-251-141230-
/O.CON.KMQT.SC.Y.0161.251014T0600Z-251015T0000Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
820 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT
TUESDAY...

* WHAT...Northwest to north winds 15 to 20 kt with gusts up to 25
  kt and waves 3 to 6 ft expected.

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

* WHEN...From 2 AM to 8 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.

&&

$$

TAP