008
WHUS73 KMQT 180913
MWWMQT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MARQUETTE MI
513 AM EDT MON MAY 18 2026
LMZ221-181500-
/O.CAN.KMQT.SC.Y.0085.000000T0000Z-260519T0000Z/
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T1500Z/
GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND
PASSAGE-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
..SMALL CRAFT ADVISORY IS CANCELLED
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO LESS THAN ONE
NAUTICAL MILE.
* WHERE...GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE.
* WHEN...UNTIL 11 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.
LSZ249-181015-
/O.CAN.KMQT.SC.Y.0085.000000T0000Z-260518T1200Z/
MARQUETTE TO MUNISING MI-
513 AM EDT MON MAY 18 2026
..SMALL CRAFT ADVISORY IS CANCELLED
WINDS AND WAVES ARE EXPECTED TO STAY BELOW SMALL CRAFT ADVISORY
CRITERIA.
LSZ250-251-181015-
/O.CAN.KMQT.SC.Y.0085.000000T0000Z-260518T1500Z/
MUNISING TO GRAND MARAIS MI-GRAND MARAIS TO WHITEFISH POINT MI-
513 AM EDT MON MAY 18 2026
..SMALL CRAFT ADVISORY IS CANCELLED
WINDS AND WAVES ARE EXPECTED TO STAY BELOW SMALL CRAFT ADVISORY
CRITERIA.
LSZ244-182100-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T2100Z/
/O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1800Z/
EAGLE RIVER TO MANITOU ISLAND MI-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 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, SOUTH WINDS 5 TO 15 KT WITH GUSTS UP TO 25 KT AND
WAVES 2 TO 5 FT OCCURRING.
* WHERE...EAGLE RIVER TO MANITOU ISLAND MI.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 5 PM EDT THIS
AFTERNOON. FOR THE SMALL CRAFT ADVISORY, UNTIL 2 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.
LSZ245-181800-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T1300Z/
/O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1800Z/
MANITOU ISLAND TO POINT ISABELLE MI-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 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, SOUTH WINDS 5 TO 15 KT WITH GUSTS UP TO 25 KT AND
WAVES 3 TO 6 FT OCCURRING.
* WHERE...MANITOU ISLAND TO POINT ISABELLE MI.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 9 AM EDT THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, UNTIL 2 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.
LSZ246-181500-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T1300Z/
/O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1500Z/
POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN ONE NAUTICAL MILE. FOR THE SMALL CRAFT
ADVISORY, SOUTHEAST WINDS 5 TO 15 KT WITH GUSTS UP TO 20 KT
AND WAVES 3 TO 6 FT OCCURRING.
* WHERE...POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 9 AM EDT THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, UNTIL 11 AM EDT THIS
MORNING.
* 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.
LMZ248-250-182115-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T1500Z/
/O.EXT.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/
SEUL CHOIX POINT TO POINT DETOUR MI-
5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT TUESDAY
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN ONE NAUTICAL MILE. FOR THE SMALL CRAFT
ADVISORY, SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
WAVES 5 TO 8 FT OCCURRING.
* WHERE...SEUL CHOIX POINT TO POINT DETOUR MI AND 5NM EAST OF A
LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 11 AM EDT THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, UNTIL 8 PM EDT TUESDAY.
* 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.
LSZ264>266-182100-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260518T2100Z/
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
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-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO LESS THAN ONE
NAUTICAL MILE.
* WHERE...LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO
MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER,
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE AND 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.
* WHEN...UNTIL 5 PM EDT THIS AFTERNOON.
* 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.
LSZ267-182115-
/O.NEW.KMQT.MF.Y.0011.260518T0913Z-260519T0000Z/
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
513 AM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO LESS THAN ONE
NAUTICAL MILE.
* WHERE...LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT
MI 5NM OFF SHORE TO THE US/CANADIAN BORDER.
* WHEN...UNTIL 8 PM EDT THIS EVENING.
* 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.
LSZ247-181500-
/O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1500Z/
LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING
KEWEENAW AND HURON BAYS-
513 AM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...
* WHAT...SOUTHEAST WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT AND
WAVES 2 TO 5 FT OCCURRING.
* WHERE...LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI
INCLUDING KEWEENAW AND HURON BAYS.
* WHEN...UNTIL 11 AM EDT THIS MORNING.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LSZ248-181200-
/O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1200Z/
HURON ISLANDS TO MARQUETTE MI-
513 AM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
* WHAT...SOUTHEAST WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT AND
WAVES 3 TO 5 FT OCCURRING.
* WHERE...HURON ISLANDS TO MARQUETTE MI.
* WHEN...UNTIL 8 AM EDT THIS MORNING.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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