Marine Weather Message
Issued by NWS Marquette, MI

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595
WHUS73 KMQT 060738
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
338 AM EDT Sun Jul 6 2025

LSZ248-061945-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
/O.EXT.KMQT.SC.Y.0122.250706T1200Z-250707T0000Z/
Huron Islands to Marquette MI-
338 AM EDT Sun Jul 6 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO
8 PM EDT THIS EVENING...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than one nautical mile. For the Small Craft
  Advisory, north winds 10 to 15 kt with gusts up to 20 kt and
  waves 2 to 5 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...For the Dense Fog Advisory, until 8 AM EDT this
  morning. For the Small Craft Advisory, from 8 AM this morning
  to 8 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LSZ249>251-061945-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
/O.EXT.KMQT.SC.Y.0122.250706T1200Z-250707T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
338 AM EDT Sun Jul 6 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO
8 PM EDT THIS EVENING...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than one nautical mile. For the Small Craft
  Advisory, north winds 10 to 15 kt with gusts up to 25 kt and
  waves 3 to 5 ft expected.

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

* WHEN...For the Dense Fog Advisory, until 8 AM EDT this
  morning. For the Small Craft Advisory, from 8 AM this morning
  to 8 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LSZ243-244-061945-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
/O.CON.KMQT.SC.Y.0122.250706T0900Z-250706T2000Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
338 AM EDT Sun Jul 6 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than one nautical mile. For the Small Craft
  Advisory, northeast winds 10 to 15 kt with gusts up to 25 kt
  and waves 2 to 5 ft expected.

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

* WHEN...For the Dense Fog Advisory, until 8 AM EDT this
  morning. For the Small Craft Advisory, until 4 PM EDT this
  afternoon.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LSZ245-246-061945-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
/O.CON.KMQT.SC.Y.0122.250706T0900Z-250706T2000Z/
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
338 AM EDT Sun Jul 6 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than one nautical mile. For the Small Craft
  Advisory, northeast winds 10 to 20 kt with gusts up to 25 kt
  and waves up to 3 ft expected.

* WHERE...Manitou Island to Point Isabelle MI and Point Isabelle
  to Lower Entrance of Portage Canal MI.

* WHEN...For the Dense Fog Advisory, until 8 AM EDT this
  morning. For the Small Craft Advisory, until 4 PM EDT this
  afternoon.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LSZ162-240>242-263-264-061200-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
338 AM EDT Sun Jul 6 2025 /238 AM CDT Sun Jul 6 2025/

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT /7 AM CDT/
THIS MORNING...

* WHAT...Dense fog will reduce visibility to less than one
  nautical mile.

* WHERE...Portions of Western Lake Superior.

* WHEN...Until 8 AM EDT /7 AM CDT/ this morning.

* IMPACTS...Low visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LSZ247-265>267-061200-
/O.CON.KMQT.MF.Y.0017.000000T0000Z-250706T1200Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
338 AM EDT Sun Jul 6 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* WHAT...Dense fog will reduce visibility to less than one
  nautical mile.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI
  Including Keweenaw and Huron Bays, Lake Superior West of Line
  from Manitou Island to Marquette MI Beyond 5NM from shore,
  Lake Superior East of a line from Manitou Island to Marquette
  MI and West of a line from Grand Marais MI to the US/Canadian
  Border Beyond 5NM from shore and Lake Superior from Grand
  Marais MI to Whitefish Point MI 5NM off shore to the
  US/Canadian border.

* WHEN...Until 8 AM EDT this morning.

* IMPACTS...Low visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$