Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
690 WHUS73 KMQT 091901 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 301 PM EDT Thu Oct 9 2025 LSZ242-243-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251010T1200Z/ /O.NEW.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 8 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 40 kt and waves 4 to 7 ft expected. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...For the Small Craft Advisory, from 10 PM this evening to 8 AM EDT Friday. For the Gale Warning, from 8 AM to 8 PM EDT 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. && $$ LSZ244-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251010T1200Z/ /O.NEW.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Eagle River to Manitou Island MI- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 8 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, west winds 15 to 25 kt with gusts up to 40 kt and waves 4 to 7 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Small Craft Advisory, from 10 PM this evening to 8 AM EDT Friday. For the Gale Warning, from 8 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ245>247-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251010T1500Z/ /O.NEW.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ 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- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 11 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. For the Gale Warning, northwest winds 10 to 20 kt with gusts up to 35 kt and waves 1 to 3 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...For the Small Craft Advisory, from 10 PM this evening to 11 AM EDT Friday. For the Gale Warning, from 11 AM to 8 PM EDT 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. && $$ LSZ248-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251010T1500Z/ /O.NEW.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ Huron Islands to Marquette MI- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 11 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, west winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 5 ft expected. * WHERE...Huron Islands to Marquette MI. * WHEN...For the Small Craft Advisory, from 10 PM this evening to 11 AM EDT Friday. For the Gale Warning, from 11 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ249-250-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251010T1500Z/ /O.NEW.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ Marquette to Munising MI-Munising to Grand Marais MI- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 11 AM EDT FRIDAY... ...GALE WARNING IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, west winds 15 to 25 kt with gusts up to 35 kt and waves 4 to 7 ft expected. * WHERE...Marquette to Munising MI and Munising to Grand Marais MI. * WHEN...For the Small Craft Advisory, from 10 PM this evening to 11 AM EDT Friday. For the Gale Warning, from 11 AM to 8 PM EDT 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. && $$ LSZ263-264-100715- /O.NEW.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 301 PM EDT Thu Oct 9 2025 ...GALE WARNING IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and waves 4 to 7 ft expected. * WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...From 8 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ265-266-100715- /O.NEW.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 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- 301 PM EDT Thu Oct 9 2025 ...GALE WARNING IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...West winds 20 to 25 kt with gusts up to 35 kt and waves 4 to 7 ft expected. * WHERE...Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and 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 11 AM to 8 PM EDT 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. && $$ LMZ248-250-100715- /O.EXT.KMQT.SC.Y.0158.251010T0400Z-251011T1200Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SATURDAY... * WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From midnight tonight to 8 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ221-100715- /O.EXT.KMQT.SC.Y.0158.251010T0400Z-251011T1200Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SATURDAY... * WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...From midnight tonight to 8 AM EDT 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. && $$ LSZ251-100715- /O.EXT.KMQT.SC.Y.0158.251010T0200Z-251011T0000Z/ Grand Marais to Whitefish Point MI- 301 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 8 PM EDT FRIDAY... * WHAT...South winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...From 10 PM this evening to 8 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ240-241-100715- /O.CON.KMQT.SC.Y.0158.251010T0200Z-251011T0000Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- 301 PM EDT Thu Oct 9 2025 /201 PM CDT Thu Oct 9 2025/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM EDT /9 PM CDT/ THIS EVENING TO 8 PM EDT /7 PM CDT/ FRIDAY... * WHAT...West winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft expected. * WHERE...Saxon Harbor WI to Black River MI and Black River to Ontonagon MI. * WHEN...From 10 PM EDT /9 PM CDT/ this evening to 8 PM EDT /7 PM CDT/ Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$