Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
461 WHUS73 KMQT 100901 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 401 AM EST Wed Dec 10 2025 LSZ242>244-102115- /O.CON.KMQT.GL.W.0059.000000T0000Z-251210T1600Z/ /O.EXB.KMQT.SC.Y.0197.251210T1600Z-251211T1200Z/ Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 AM EST THURSDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft occurring. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and waves 7 to 10 ft expected. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the Gale Warning, until 11 AM EST this morning. For the Small Craft Advisory, from 11 AM this morning to 7 AM EST Thursday. * 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. && $$ LSZ245-247-248-102115- /O.CON.KMQT.GL.W.0059.251210T1200Z-251210T1600Z/ /O.EXB.KMQT.SC.Y.0197.251210T1600Z-251211T1200Z/ Manitou Island to Point Isabelle MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays-Huron Islands to Marquette MI- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 11 AM EST THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 AM EST THURSDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 10 ft expected. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and waves 6 to 9 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays and Huron Islands to Marquette MI. * WHEN...For the Gale Warning, from 7 AM to 11 AM EST this morning. For the Small Craft Advisory, from 11 AM this morning to 7 AM EST Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ249-250-102115- /O.CON.KMQT.GL.W.0059.251210T1200Z-251211T0300Z/ /O.NEW.KMQT.SC.Y.0198.251211T0300Z-251212T0000Z/ Marquette to Munising MI-Munising to Grand Marais MI- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 PM EST THURSDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft expected. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and waves 7 to 12 ft expected. * WHERE...Marquette to Munising MI and Munising to Grand Marais MI. * WHEN...For the Gale Warning, from 7 AM this morning to 10 PM EST this evening. For the Small Craft Advisory, from 10 PM this evening to 7 PM EST Thursday. * 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. && $$ LSZ263-264-101600- /O.CON.KMQT.GL.W.0059.000000T0000Z-251210T1600Z/ Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 10 ft occurring. * WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...Until 11 AM EST this morning. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ265-101600- /O.CON.KMQT.GL.W.0059.251210T1200Z-251210T1600Z/ Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 11 AM EST THIS MORNING... * WHAT...North winds 25 to 30 kt with gusts up to 35 kt and waves 7 to 10 ft expected. * WHERE...Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore. * WHEN...From 7 AM to 11 AM EST this morning. * 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. && $$ LSZ266-102115- /O.CON.KMQT.GL.W.0059.251210T1200Z-251211T0300Z/ Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 401 AM EST Wed Dec 10 2025 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 10 PM EST THIS EVENING... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 12 ft expected. * WHERE...Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...From 7 AM this morning to 10 PM EST this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ246-102115- /O.EXB.KMQT.SC.Y.0197.251210T1600Z-251211T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- 401 AM EST Wed Dec 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 AM EST THURSDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI. * WHEN...From 11 AM this morning to 7 AM EST Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-102115- /O.EXB.KMQT.SC.Y.0197.251210T1200Z-251212T0000Z/ Grand Marais to Whitefish Point MI- 401 AM EST Wed Dec 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST THURSDAY... * WHAT...North winds 20 to 25 kt with gusts up to 30 kt and waves 6 to 11 ft expected. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...From 7 AM this morning to 7 PM EST Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ221-248-250-102115- /O.EXT.KMQT.SC.Y.0197.000000T0000Z-251211T0000Z/ Green Bay North of line from Cedar River MI to Rock Island Passage-Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 401 AM EST Wed Dec 10 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft occurring. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage, Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...Until 7 PM EST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ240-241-102115- /O.CON.KMQT.SC.Y.0197.000000T0000Z-251211T0100Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- 401 AM EST Wed Dec 10 2025 /301 AM CST Wed Dec 10 2025/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EST /7 PM CST/ THIS EVENING... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and waves 7 to 10 ft occurring. * WHERE...Saxon Harbor WI to Black River MI and Black River to Ontonagon MI. * WHEN...Until 8 PM EST /7 PM CST/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$