423
WHUS73 KMQT 281621
MWWMQT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MARQUETTE MI
1121 AM EST SAT FEB 28 2026
LSZ244-281800-
/O.CON.KMQT.UP.W.0013.000000T0000Z-260228T1800Z/
/O.CON.KMQT.SC.Y.0034.000000T0000Z-260228T1800Z/
EAGLE RIVER TO MANITOU ISLAND MI-
1121 AM EST SAT FEB 28 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
THIS AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
* WHAT...FOR THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING
SPRAY AT A RATE OF 2 CM PER HOUR OR GREATER OCCURRING, AND MAY
RAPIDLY ACCUMULATE ON VESSELS. FOR THE SMALL CRAFT ADVISORY,
NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT AND WAVES 4
TO 6 FT OCCURRING.
* WHERE...EAGLE RIVER TO MANITOU ISLAND MI.
* WHEN...UNTIL 1 PM EST THIS AFTERNOON.
* 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.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LSZ249>251-010300-
/O.CON.KMQT.UP.W.0013.000000T0000Z-260301T0300Z/
/O.CON.KMQT.SC.Y.0034.000000T0000Z-260301T0000Z/
MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI-
GRAND MARAIS TO WHITEFISH POINT MI-
1121 AM EST SAT FEB 28 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...FOR THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING
SPRAY AT A RATE OF 2 CM PER HOUR OR GREATER OCCURRING, AND MAY
RAPIDLY ACCUMULATE ON VESSELS. FOR THE SMALL CRAFT ADVISORY,
NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT AND WAVES 2
TO 5 FT OCCURRING.
* WHERE...MARQUETTE TO MUNISING MI, MUNISING TO GRAND MARAIS MI
AND GRAND MARAIS TO WHITEFISH POINT MI.
* WHEN...FOR THE HEAVY FREEZING SPRAY WARNING, UNTIL 10 PM EST
THIS EVENING. FOR THE SMALL CRAFT ADVISORY, UNTIL 7 PM EST
THIS EVENING.
* 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.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LSZ243-264-281800-
/O.CON.KMQT.UP.W.0013.000000T0000Z-260228T1800Z/
UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1121 AM EST SAT FEB 28 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
THIS AFTERNOON...
* WHAT...HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR OR
GREATER OCCURRING, AND MAY RAPIDLY ACCUMULATE ON VESSELS.
* WHERE...UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI AND
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER.
* WHEN...UNTIL 1 PM EST THIS AFTERNOON.
* 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.
LSZ245>248-265-282100-
/O.CON.KMQT.UP.W.0013.000000T0000Z-260228T2100Z/
MANITOU ISLAND TO POINT ISABELLE MI-
POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI-
LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING
KEWEENAW AND HURON BAYS-HURON ISLANDS TO MARQUETTE MI-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1121 AM EST SAT FEB 28 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 PM EST
THIS AFTERNOON...
* WHAT...HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR OR
GREATER OCCURRING, AND MAY RAPIDLY ACCUMULATE ON VESSELS.
* WHERE...MANITOU ISLAND TO POINT ISABELLE MI, POINT ISABELLE TO
LOWER ENTRANCE OF PORTAGE CANAL MI, LOWER ENTRANCE OF PORTAGE
CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS,
HURON ISLANDS TO MARQUETTE MI AND LAKE SUPERIOR WEST OF LINE
FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE.
* WHEN...UNTIL 4 PM EST THIS AFTERNOON.
* 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.
LSZ266-267-010300-
/O.CON.KMQT.UP.W.0013.000000T0000Z-260301T0300Z/
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-
1121 AM EST SAT FEB 28 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...
* WHAT...HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR OR
GREATER OCCURRING, AND MAY RAPIDLY ACCUMULATE ON VESSELS.
* WHERE...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 10 PM EST THIS EVENING.
* 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.
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