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Home Return to list Small Craft Advisory 0023 Issued by the Marquette Forecast Office
Action: New Issued At: 2026-02-05 03:18:38 625 WHUS73 KMQT 050918 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 418 AM EST Thu Feb 5 2026 LSZ263-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260206T1800Z/ /O.NEW.KMQT.UP.A.0001.260206T1200Z-260207T0000Z/ 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- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM TO 1 PM EST FRIDAY... ...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... * WHAT...For the Gale Warning, north winds 20 to 25 kt with gusts up to 40 kt and waves 2 to 5 ft expected. For the Heavy Freezing Spray Watch, heavy freezing spray at a rate of 2 cm per hour or greater possible, and may rapidly accumulate on vessels. * WHERE...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 7 AM to 1 PM EST Friday. For the Heavy Freezing Spray Watch, from Friday morning through Friday 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid or mitigate hazardous accumulation of ice on their vessel. 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. && $$ LSZ264-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260207T0000Z/ /O.NEW.KMQT.UP.A.0001.260206T1200Z-260207T0600Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY... ...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and waves 8 to 13 ft expected. For the Heavy Freezing Spray Watch, heavy freezing spray at a rate of 2 cm per hour or greater possible, and may rapidly accumulate on vessels. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...For the Gale Warning, from 7 AM to 7 PM EST Friday. For the Heavy Freezing Spray Watch, from Friday morning through late Friday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid or mitigate hazardous accumulation of ice on their vessel. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ266-267-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260207T0600Z/ /O.NEW.KMQT.UP.A.0001.260206T1200Z-260207T1200Z/ 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- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM FRIDAY TO 1 AM EST SATURDAY... ...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY MORNING... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and waves 11 to 16 ft expected. For the Heavy Freezing Spray Watch, heavy freezing spray at a rate of 2 cm per hour or greater possible, 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...For the Gale Warning, from 7 AM Friday to 1 AM EST Saturday. For the Heavy Freezing Spray Watch, from Friday morning through Saturday morning. * 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 consider altering plans to avoid or mitigate hazardous accumulation of ice on their vessel. 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. && $$ LSZ242-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260206T1800Z/ Ontonagon to Upper Entrance of Portage Canal MI- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM TO 1 PM EST FRIDAY... * WHAT...North winds 25 to 30 kt with gusts up to 40 kt and waves 1 to 4 ft expected. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...From 7 AM to 1 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ243>248-265-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260207T0000Z/ Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- 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- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 6 to 9 ft expected. * WHERE...Portions of Central and Western Lake Superior. * WHEN...From 7 AM to 7 PM EST Friday. * 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. && $$ LSZ249>251-052130- /O.NEW.KMQT.GL.W.0009.260206T1200Z-260207T0600Z/ Marquette to Munising MI-Munising to Grand Marais MI- Grand Marais to Whitefish Point MI- 418 AM EST Thu Feb 5 2026 ...GALE WARNING IN EFFECT FROM 7 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 13 to 18 ft expected. * WHERE...Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...From 7 AM Friday to 1 AM EST Saturday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ248-250-052130- /O.NEW.KMQT.SC.Y.0023.260206T1500Z-260207T0600Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 418 AM EST Thu Feb 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...North winds 15 to 25 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 1 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. && $$ Action: Continued Issued At: 2026-02-05 09:31:59 725 WHUS73 KMQT 051531 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1031 AM EST Thu Feb 5 2026 LSZ263-060345- /O.UPG.KMQT.UP.A.0001.260206T1200Z-260207T0000Z/ /O.NEW.KMQT.UP.W.0009.260206T1200Z-260207T0000Z/ /O.CON.KMQT.GL.W.0009.260206T1200Z-260206T1800Z/ Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 1031 AM EST Thu Feb 5 2026 ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 1 PM EST FRIDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. For the Gale Warning, north winds 20 to 25 kt with gusts up to 40 kt and waves 2 to 5 ft expected. * WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park. * WHEN...For the Heavy Freezing Spray Warning, from 7 AM to 7 PM EST Friday. For the Gale Warning, from 7 AM to 1 PM EST Friday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ264-060345- /O.UPG.KMQT.UP.A.0001.260206T1200Z-260207T0600Z/ /O.NEW.KMQT.UP.W.0009.260206T1200Z-260207T0600Z/ /O.CON.KMQT.GL.W.0009.260206T1200Z-260207T0000Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1031 AM EST Thu Feb 5 2026 ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM FRIDAY TO 1 AM EST SATURDAY... ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY... * WHAT...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. For the Gale Warning, north winds 25 to 35 kt with a few storm-force gusts up to 50 kt possible and waves 8 to 13 ft expected. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...For the Heavy Freezing Spray Warning, from 7 AM Friday to 1 AM EST Saturday. For the Gale Warning, from 7 AM to 7 PM EST Friday. * 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. && $$ LSZ266-267-060345- /O.UPG.KMQT.UP.A.0001.260206T1200Z-260207T1200Z/ /O.NEW.KMQT.UP.W.0009.260206T1200Z-260207T1200Z/ /O.CON.KMQT.GL.W.0009.260206T1200Z-260207T0600Z/ Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1031 AM EST Thu Feb 5 2026 ...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 AM FRIDAY TO 7 AM EST SATURDAY... ...GALE WARNING REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater expected, and may rapidly accumulate on vessels. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and waves 11 to 16 ft expected. * WHERE...Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore and Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...For the Heavy Freezing Spray Warning, from 7 AM Friday to 7 AM EST Saturday. For the Gale Warning, from 7 AM Friday to 1 AM EST Saturday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ242-060345- /O.CON.KMQT.GL.W.0009.260206T1200Z-260206T1800Z/ Ontonagon to Upper Entrance of Portage Canal MI- 1031 AM EST Thu Feb 5 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 1 PM EST FRIDAY... * WHAT...North winds 25 to 30 kt with gusts up to 40 kt and waves 1 to 4 ft expected. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...From 7 AM to 1 PM EST Friday. * 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. && $$ LSZ243>248-265-060345- /O.CON.KMQT.GL.W.0009.260206T1200Z-260207T0000Z/ Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays-Huron Islands to Marquette MI- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 1031 AM EST Thu Feb 5 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 6 to 9 ft expected. * WHERE...Portions of Central and Western Lake Superior. * WHEN...From 7 AM to 7 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ249>251-060345- /O.CON.KMQT.GL.W.0009.260206T1200Z-260207T0600Z/ Marquette to Munising MI-Munising to Grand Marais MI- Grand Marais to Whitefish Point MI- 1031 AM EST Thu Feb 5 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 13 to 18 ft expected. * WHERE...Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...From 7 AM Friday to 1 AM EST Saturday. * 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. && $$ LMZ248-250-060345- /O.CON.KMQT.SC.Y.0023.260206T1500Z-260207T0600Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1031 AM EST Thu Feb 5 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt possible and waves 1 to 4 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 10 AM Friday to 1 AM EST Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||