575  
WHUS73 KDLH 162103  
MWWDLH  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DULUTH MN  
403 PM CDT MON MAR 16 2026  
 
LSZ141-170900-  
/O.CAN.KDLH.GL.W.0011.000000T0000Z-260317T0600Z/  
/O.EXB.KDLH.SC.Y.0035.000000T0000Z-260317T0900Z/  
GRAND MARAIS TO TACONITE HARBOR MN-  
403 PM CDT MON MAR 16 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY
 
   
..GALE WARNING IS CANCELLED
 
 
* WHAT...NORTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND  
WAVES UP TO 3 FT.  
 
* WHERE...GRAND MARAIS TO TACONITE HARBOR MN.  
 
* WHEN...UNTIL 4 AM CDT TUESDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN  
HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ147-148-150-170900-  
/O.EXP.KDLH.GL.W.0011.000000T0000Z-260316T2100Z/  
/O.EXP.KDLH.UP.W.0009.000000T0000Z-260316T2100Z/  
/O.NEW.KDLH.UP.W.0010.260316T2103Z-260317T0600Z/  
/O.EXB.KDLH.SC.Y.0035.000000T0000Z-260317T0900Z/  
SAND ISLAND TO BAYFIELD WI-OAK POINT TO SAXON HARBOR WI-  
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-  
403 PM CDT MON MAR 16 2026  
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 1 AM CDT  
TUESDAY...   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY
 
   
..GALE WARNING HAS EXPIRED
 
 
* WHAT...FOR THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING  
SPRAY AT A RATE OF 2 CM PER HOUR OR GREATER MAY RAPIDLY  
ACCUMULATE ON VESSELS. FOR THE SMALL CRAFT ADVISORY, NORTH  
WINDS 20 TO 30 KT AND WAVES 5 TO 8 FT.  
 
* WHERE...SAND ISLAND TO BAYFIELD WI, OAK POINT TO SAXON HARBOR  
WI AND OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND.  
 
* WHEN...FOR THE HEAVY FREEZING SPRAY WARNING, UNTIL 1 AM CDT  
TUESDAY. FOR THE SMALL CRAFT ADVISORY, UNTIL 4 AM CDT TUESDAY.  
 
* 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.  
CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
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.  
 
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN  
HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ146-170600-  
/O.EXP.KDLH.UP.W.0009.000000T0000Z-260316T2100Z/  
/O.NEW.KDLH.UP.W.0010.260316T2103Z-260317T0600Z/  
/O.CON.KDLH.SC.Y.0035.000000T0000Z-260317T0600Z/  
PORT WING TO SAND ISLAND WI-  
403 PM CDT MON MAR 16 2026  
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 1 AM CDT  
TUESDAY...  
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT  
TUESDAY...  
 
* WHAT...FOR THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING  
SPRAY AT A RATE OF 2 CM PER HOUR OR GREATER MAY RAPIDLY  
ACCUMULATE ON VESSELS. FOR THE SMALL CRAFT ADVISORY, NORTH  
WINDS 15 TO 25 KT AND WAVES 4 TO 6 FT.  
 
* WHERE...PORT WING TO SAND ISLAND WI.  
 
* WHEN...UNTIL 1 AM CDT TUESDAY.  
 
* 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.  
CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
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.  
 
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN  
HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ140-170600-  
/O.CON.KDLH.GL.W.0012.000000T0000Z-260317T0600Z/  
GRAND PORTAGE TO GRAND MARAIS MN-  
403 PM CDT MON MAR 16 2026  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 1 AM CDT TUESDAY
 
 
* WHAT...NORTH WINDS 15 TO 25 KT WITH GUSTS UP TO 35 KT AND  
WAVES 1 TO 4 FT.  
 
* WHERE...GRAND PORTAGE TO GRAND MARAIS MN.  
 
* WHEN...UNTIL 1 AM CDT TUESDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
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.  
 

 
 

 
 
LSZ142>145-170600-  
/O.CON.KDLH.SC.Y.0035.000000T0000Z-260317T0600Z/  
TACONITE HARBOR TO SILVER BAY HARBOR MN-  
SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN-  
DULUTH MN TO PORT WING WI-  
403 PM CDT MON MAR 16 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT  
TUESDAY...  
 
* WHAT...NORTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND  
WAVES 2 TO 5 FT.  
 
* WHERE...TACONITE HARBOR TO SILVER BAY HARBOR MN, SILVER BAY  
HARBOR TO TWO HARBORS MN, TWO HARBORS TO DULUTH MN AND DULUTH  
MN TO PORT WING WI.  
 
* WHEN...UNTIL 1 AM CDT TUESDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN  
HAZARDOUS CONDITIONS.  
 

 
 

 
 
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