Marine Weather Message
Issued by NWS Marquette, MI

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450
WHUS73 KMQT 271958
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
358 PM EDT Wed Aug 27 2025

LSZ248-280800-
/O.CON.KMQT.SC.Y.0138.000000T0000Z-250828T0000Z/
/O.EXT.KMQT.SC.Y.0139.250828T0600Z-250829T0300Z/
Huron Islands to Marquette MI-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 11 PM EDT
THURSDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 15
  kt with gusts up to 30 kt and waves 1 to 3 ft occurring. For
  the second Small Craft Advisory, north winds 10 to 20 kt with
  gusts up to 25 kt and waves 5 to 8 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...For the first Small Craft Advisory, until 8 PM EDT this
  evening. For the second Small Craft Advisory, from 2 AM to 11
  PM EDT 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.

&&

$$

LSZ250-251-280800-
/O.EXT.KMQT.SC.Y.0139.250828T0600Z-250829T0300Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 11 PM EDT
THURSDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and
  waves 4 to 7 ft expected.

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

* WHEN...From 2 AM to 11 PM EDT 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.

&&

$$

LSZ249-280800-
/O.EXT.KMQT.SC.Y.0139.250828T0600Z-250829T0300Z/
Marquette to Munising MI-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 11 PM EDT
THURSDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and
  waves 4 to 7 ft expected.

* WHERE...Marquette to Munising MI.

* WHEN...From 2 AM to 11 PM EDT 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.

&&

$$

LSZ241-280800-
/O.CON.KMQT.SC.Y.0138.000000T0000Z-250827T2200Z/
/O.CON.KMQT.SC.Y.0139.250828T0600Z-250829T0000Z/
Black River to Ontonagon MI-
358 PM EDT Wed Aug 27 2025 /258 PM CDT Wed Aug 27 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT /5 PM
CDT/ THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM EDT /1 AM
CDT/ TO 8 PM EDT /7 PM CDT/ THURSDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 15
  kt with gusts up to 25 kt and waves 2 to 3 ft occurring. For
  the second Small Craft Advisory, northeast winds 10 to 20 kt
  with gusts up to 25 kt and waves 3 to 6 ft expected.

* WHERE...Black River to Ontonagon MI.

* WHEN...For the first Small Craft Advisory, until 6 PM EDT /5
  PM CDT/ this evening. For the second Small Craft Advisory,
  from 2 AM EDT /1 AM CDT/ to 8 PM EDT /7 PM CDT/ 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.

&&

$$

LSZ242-280800-
/O.CON.KMQT.SC.Y.0138.000000T0000Z-250828T0000Z/
/O.CON.KMQT.SC.Y.0139.250828T0600Z-250829T0000Z/
Ontonagon to Upper Entrance of Portage Canal MI-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT
THURSDAY...

* WHAT...For the first Small Craft Advisory, west winds 15 to 20
  kt with gusts up to 30 kt and waves 3 to 6 ft occurring. For
  the second Small Craft Advisory, northeast winds 10 to 20 kt
  with gusts up to 25 kt and waves 3 to 6 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 8 PM EDT this
  evening. For the second Small Craft Advisory, from 2 AM to 8
  PM EDT 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.

&&

$$

LSZ245>247-280800-
/O.CON.KMQT.SC.Y.0138.000000T0000Z-250828T0000Z/
/O.CON.KMQT.SC.Y.0139.250828T0600Z-250829T0000Z/
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-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT
THURSDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 15
  kt with gusts up to 30 kt and waves 1 to 3 ft occurring. For
  the second Small Craft Advisory, northeast winds 10 to 20 kt
  with gusts up to 25 kt and waves 2 to 5 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 8 PM EDT this
  evening. For the second Small Craft Advisory, from 2 AM to 8
  PM EDT 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.

&&

$$

LSZ240-280800-
/O.CON.KMQT.SC.Y.0139.250828T0600Z-250829T0000Z/
Saxon Harbor WI to Black River MI-
358 PM EDT Wed Aug 27 2025 /258 PM CDT Wed Aug 27 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM EDT /1 AM
CDT/ TO 8 PM EDT /7 PM CDT/ THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and
  waves 3 to 6 ft expected.

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

* WHEN...From 2 AM EDT /1 AM CDT/ to 8 PM EDT /7 PM CDT/
  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.

&&

$$

LSZ243-244-280800-
/O.CON.KMQT.SC.Y.0138.000000T0000Z-250829T0000Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
358 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
THURSDAY...

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

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

* WHEN...Until 8 PM EDT 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.

&&

$$