373
WHUS73 KDLH 170248
MWWDLH
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DULUTH MN
948 PM CDT MON MAR 16 2026
LSZ140-170900-
/O.CAN.KDLH.GL.W.0012.000000T0000Z-260317T0600Z/
/O.EXA.KDLH.SC.Y.0035.000000T0000Z-260317T0900Z/
GRAND PORTAGE TO GRAND MARAIS MN-
948 PM CDT MON MAR 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTH WINDS 10 TO 20 KT WITH GUSTS UP TO 25 KT AND WAVES
1 TO 2 FT.
* WHERE...GRAND PORTAGE TO GRAND MARAIS 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.
LSZ146-170600-
/O.CON.KDLH.UP.W.0010.000000T0000Z-260317T0600Z/
/O.CON.KDLH.SC.Y.0035.000000T0000Z-260317T0600Z/
PORT WING TO SAND ISLAND WI-
948 PM CDT MON MAR 16 2026
...HEAVY FREEZING SPRAY WARNING REMAINS 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 5 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.
LSZ147-148-150-170900-
/O.CON.KDLH.UP.W.0010.000000T0000Z-260317T0600Z/
/O.CON.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-
948 PM CDT MON MAR 16 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 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 7 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.
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-
948 PM CDT MON MAR 16 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
* WHAT...NORTH WINDS 10 TO 25 KT AND WAVES 1 TO 3 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.
LSZ141-170900-
/O.CON.KDLH.SC.Y.0035.000000T0000Z-260317T0900Z/
GRAND MARAIS TO TACONITE HARBOR MN-
948 PM CDT MON MAR 16 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
TUESDAY...
* WHAT...NORTH WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT AND
WAVES 1 TO 2 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.
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