859  
WHUS73 KMQT 262034  
MWWMQT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MARQUETTE MI  
334 PM EST THU FEB 26 2026  
 
LSZ162-270845-  
/O.CON.KMQT.GL.W.0019.260227T1800Z-260228T1000Z/  
/O.CON.KMQT.UP.W.0013.260228T0000Z-260228T1200Z/  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
334 PM EST THU FEB 26 2026 /234 PM CST THU FEB 26 2026/  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 PM EST /NOON CST/ FRIDAY  
TO 5 AM EST /4 AM CST/ SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM EST  
/6 PM CST/ FRIDAY TO 7 AM EST /6 AM CST/ SATURDAY...  
 
* WHAT...FOR THE GALE WARNING, WEST WINDS 20 TO 30 KT WITH GUSTS  
UP TO 45 KT AND WAVES 6 TO 9 FT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* WHERE...LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO  
GRAND PORTAGE MN BEYOND 5NM.  
 
* WHEN...FOR THE GALE WARNING, FROM 1 PM EST /NOON CST/ FRIDAY  
TO 5 AM EST /4 AM CST/ SATURDAY. FOR THE HEAVY FREEZING SPRAY  
WARNING, FROM 7 PM EST /6 PM CST/ FRIDAY TO 7 AM EST /6 AM  
CST/ SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ242-263-270845-  
/O.CON.KMQT.GL.W.0019.260227T1800Z-260228T1000Z/  
/O.CON.KMQT.UP.W.0013.260228T0000Z-260228T1500Z/  
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-  
334 PM EST THU FEB 26 2026  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 5 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM  
FRIDAY TO 10 AM EST SATURDAY...  
 
* WHAT...FOR THE GALE WARNING, WEST WINDS 25 TO 35 KT WITH GUSTS  
UP TO 45 KT AND WAVES 9 TO 14 FT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* WHERE...ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI AND  
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.  
 
* WHEN...FOR THE GALE WARNING, FROM 1 PM FRIDAY TO 5 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 7 PM  
FRIDAY TO 10 AM EST SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ246-247-270845-  
/O.CON.KMQT.GL.W.0019.260227T1800Z-260228T1200Z/  
/O.CON.KMQT.UP.W.0013.260228T0300Z-260228T2100Z/  
POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI-  
LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING  
KEWEENAW AND HURON BAYS-  
334 PM EST THU FEB 26 2026  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY...  
 
* WHAT...FOR THE GALE WARNING, WEST WINDS 25 TO 35 KT WITH GUSTS  
UP TO 45 KT AND WAVES AROUND 0 FOOT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* 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 GALE WARNING, FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ249-250-270845-  
/O.CON.KMQT.GL.W.0019.260227T1800Z-260228T1200Z/  
/O.CON.KMQT.UP.W.0013.260228T0300Z-260301T0900Z/  
MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI-  
334 PM EST THU FEB 26 2026  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM  
FRIDAY TO 4 AM EST SUNDAY...  
 
* WHAT...FOR THE GALE WARNING, WEST WINDS 30 TO 40 KT WITH GUSTS  
UP TO 45 KT AND WAVES 13 TO 18 FT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* WHERE...MARQUETTE TO MUNISING MI AND MUNISING TO GRAND MARAIS  
MI.  
 
* WHEN...FOR THE GALE WARNING, FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 10 PM  
FRIDAY TO 4 AM EST SUNDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ243-244-264-270845-  
/O.CON.KMQT.SR.W.0002.260227T1800Z-260228T1200Z/  
/O.CON.KMQT.UP.W.0013.260228T0000Z-260228T1800Z/  
UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI-  
EAGLE RIVER TO MANITOU ISLAND MI-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
334 PM EST THU FEB 26 2026  
 
...STORM WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM  
FRIDAY TO 1 PM EST SATURDAY...  
 
* WHAT...FOR THE STORM WARNING, WEST WINDS 30 TO 40 KT WITH  
GUSTS UP TO 50 KT AND WAVES 11 TO 16 FT EXPECTED. FOR THE  
HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE  
OF 2 CM PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY  
ACCUMULATE ON VESSELS.  
 
* WHERE...UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI,  
EAGLE RIVER TO MANITOU ISLAND MI AND LAKE SUPERIOR FROM UPPER  
ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE  
TO THE US/CANADIAN BORDER.  
 
* WHEN...FOR THE STORM WARNING, FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 7 PM  
FRIDAY TO 1 PM EST SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STORM FORCE WINDS AND HAZARDOUS WAVES WILL CAPSIZE  
OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
LSZ245-270845-  
/O.CON.KMQT.SR.W.0002.260227T1800Z-260228T1200Z/  
/O.CON.KMQT.UP.W.0013.260228T0300Z-260228T2100Z/  
MANITOU ISLAND TO POINT ISABELLE MI-  
334 PM EST THU FEB 26 2026  
 
...STORM WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY...  
 
* WHAT...FOR THE STORM WARNING, WEST WINDS 25 TO 35 KT WITH  
GUSTS UP TO 50 KT AND WAVES 5 TO 8 FT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* WHERE...MANITOU ISLAND TO POINT ISABELLE MI.  
 
* WHEN...FOR THE STORM WARNING, FROM 1 PM FRIDAY TO 7 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STORM FORCE WINDS AND HAZARDOUS WAVES WILL CAPSIZE  
OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
LSZ248-265-270845-  
/O.CON.KMQT.SR.W.0002.260227T1800Z-260228T1500Z/  
/O.CON.KMQT.UP.W.0013.260228T0300Z-260228T2100Z/  
HURON ISLANDS TO MARQUETTE MI-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
334 PM EST THU FEB 26 2026  
 
...STORM WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 10 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY...  
 
* WHAT...FOR THE STORM WARNING, WEST WINDS 30 TO 40 KT WITH  
GUSTS UP TO 50 KT AND WAVES 3 TO 6 FT EXPECTED. FOR THE HEAVY  
FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM  
PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON  
VESSELS.  
 
* WHERE...HURON ISLANDS TO MARQUETTE MI AND LAKE SUPERIOR WEST  
OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM  
SHORE.  
 
* WHEN...FOR THE STORM WARNING, FROM 1 PM FRIDAY TO 10 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 10 PM  
FRIDAY TO 4 PM EST SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STORM FORCE WINDS AND HAZARDOUS WAVES WILL CAPSIZE  
OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
LSZ251-266-267-270845-  
/O.CON.KMQT.SR.W.0002.260227T1800Z-260228T1500Z/  
/O.CON.KMQT.UP.W.0013.260228T0300Z-260301T0900Z/  
GRAND MARAIS TO WHITEFISH POINT MI-  
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-  
334 PM EST THU FEB 26 2026  
 
...STORM WARNING REMAINS IN EFFECT FROM 1 PM FRIDAY TO 10 AM EST  
SATURDAY...  
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 10 PM  
FRIDAY TO 4 AM EST SUNDAY...  
 
* WHAT...FOR THE STORM WARNING, WEST WINDS 30 TO 40 KT WITH  
GUSTS UP TO 50 KT AND WAVES 17 TO 22 FT EXPECTED. FOR THE  
HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE  
OF 2 CM PER HOUR OR GREATER EXPECTED, AND MAY RAPIDLY  
ACCUMULATE ON VESSELS.  
 
* WHERE...GRAND MARAIS TO WHITEFISH POINT MI, 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...FOR THE STORM WARNING, FROM 1 PM FRIDAY TO 10 AM EST  
SATURDAY. FOR THE HEAVY FREEZING SPRAY WARNING, FROM 10 PM  
FRIDAY TO 4 AM EST SUNDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF  
STABILITY. STORM FORCE WINDS AND HAZARDOUS WAVES WILL CAPSIZE  
OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
LSZ240-241-270845-  
/O.CON.KMQT.UP.W.0013.260228T0000Z-260228T1500Z/  
SAXON HARBOR WI TO BLACK RIVER MI-BLACK RIVER TO ONTONAGON MI-  
334 PM EST THU FEB 26 2026 /234 PM CST THU FEB 26 2026/  
 
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM EST  
/6 PM CST/ FRIDAY TO 10 AM EST /9 AM CST/ SATURDAY...  
 
* WHAT...HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR OR  
GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON VESSELS.  
 
* WHERE...SAXON HARBOR WI TO BLACK RIVER MI AND BLACK RIVER TO  
ONTONAGON MI.  
 
* WHEN...FROM 7 PM EST /6 PM CST/ FRIDAY TO 10 AM EST /9 AM CST/  
SATURDAY.  
 
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS  
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC  
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND  
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF STABILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON  
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA  
OR CONDUCT MITIGATION.  
 

 
 

 
 
LMZ248-250-270845-  
/O.CON.KMQT.SC.Y.0034.260227T1500Z-260228T1200Z/  
SEUL CHOIX POINT TO POINT DETOUR MI-  
5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE-  
334 PM EST THU FEB 26 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM FRIDAY TO  
7 AM EST SATURDAY...  
 
* WHAT...WEST WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT AND WAVES  
1 TO 4 FT EXPECTED.  
 
* WHERE...SEUL CHOIX POINT TO POINT DETOUR MI AND 5NM EAST OF A  
LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE.  
 
* WHEN...FROM 10 AM FRIDAY TO 7 AM EST SATURDAY.  
 
* 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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