230
WHUS73 KMQT 240906
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
506 AM EDT Sun Aug 24 2025

LSZ246-247-242115-
/O.EXB.KMQT.SC.Y.0135.250824T1200Z-250825T0300Z/
/O.NEW.KMQT.SC.Y.0136.250825T1200Z-250826T0000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
506 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 8 PM EDT MONDAY...

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

* 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...For the first Small Craft Advisory, until 11 PM EDT
  this evening. For the second Small Craft Advisory, from 8 AM
  to 8 PM EDT Monday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242115-
/O.EXT.KMQT.SC.Y.0134.000000T0000Z-250825T1500Z/
Black River to Ontonagon MI-
506 AM EDT Sun Aug 24 2025 /406 AM CDT Sun Aug 24 2025/

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT /10 AM CDT/
MONDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and
  waves 4 to 7 ft occurring.

* WHERE...Black River to Ontonagon MI.

* WHEN...Until 11 AM EDT /10 AM CDT/ Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-242115-
/O.EXT.KMQT.SC.Y.0135.250824T1200Z-250825T2200Z/
Huron Islands to Marquette MI-
506 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT MONDAY...

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

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 6 PM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249-242115-
/O.EXT.KMQT.SC.Y.0135.250824T1500Z-250826T0600Z/
Marquette to Munising MI-
506 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO
2 AM EDT TUESDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
  waves 5 to 8 ft expected.

* WHERE...Marquette to Munising MI.

* WHEN...From 11 AM this morning to 2 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.

&&

$$

LSZ250-251-242115-
/O.EXT.KMQT.SC.Y.0134.000000T0000Z-250826T1000Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
506 AM EDT Sun Aug 24 2025

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
  waves 6 to 9 ft occurring.

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

&&

$$

LSZ240-242115-
/O.CON.KMQT.SC.Y.0134.000000T0000Z-250825T0000Z/
Saxon Harbor WI to Black River MI-
506 AM EDT Sun Aug 24 2025 /406 AM CDT Sun Aug 24 2025/

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

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and
  waves 3 to 5 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.

&&

$$

LSZ242-243-242115-
/O.CON.KMQT.SC.Y.0134.000000T0000Z-250825T1800Z/
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
506 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT MONDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and
  waves 3 to 6 ft occurring.

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

* WHEN...Until 2 PM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-242115-
/O.CON.KMQT.SC.Y.0134.000000T0000Z-250825T2100Z/
Eagle River to Manitou Island MI-
506 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT MONDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and
  waves 4 to 7 ft occurring.

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

* WHEN...Until 5 PM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ245-242115-
/O.CON.KMQT.SC.Y.0135.250824T1200Z-250825T1200Z/
Manitou Island to Point Isabelle MI-
506 AM EDT Sun Aug 24 2025

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
  waves 1 to 4 ft expected.

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

* WHEN...Until 8 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$