Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
840 WHUS73 KMQT 100204 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1004 PM EDT Thu Oct 9 2025 LSZ242-243-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251010T1200Z/ /O.CON.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south to southwest winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. For the Gale Warning, southwest winds 15 to 25 kt with gusts up to 35 kt becoming northwest winds 15 to 25 kt with gusts up to 40 kt Friday afternoon; 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, until 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. && $$ LSZ244-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251010T1200Z/ /O.CON.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Eagle River to Manitou Island MI- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south to southwest winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, southwest winds 10 to 20 kt with gusts up to 35 kt becoming northwest winds 15 to 25 kt with gusts up to 40 kt by Friday afternoon; waves 4 to 7 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Small Craft Advisory, until 8 AM EDT Friday. For the Gale Warning, from 8 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ245>247-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251010T1500Z/ /O.CON.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- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south to southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. For the Gale Warning, west to 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, until 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. && $$ LSZ248-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251010T1500Z/ /O.CON.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ Huron Islands to Marquette MI- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south to southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, west to northwest winds 15 to 25 kt with gusts up to 35 kt and waves 3 to 6 ft expected. * WHERE...Huron Islands to Marquette MI. * WHEN...For the Small Craft Advisory, until 11 AM EDT Friday. For the Gale Warning, from 11 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ249-250-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251010T1500Z/ /O.CON.KMQT.GL.W.0043.251010T1500Z-251011T0000Z/ Marquette to Munising MI-Munising to Grand Marais MI- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...For the Small Craft Advisory, south to southwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. For the Gale Warning, southwest winds 10 to 20 kt with a few gale force gusts up to 35 kt possible becoming northwest winds 15 to 25 kt with gusts up to 35 kt by late Friday afternoon; waves 4 to 7 ft expected. * WHERE...Marquette to Munising MI and Munising to Grand Marais MI. * WHEN...For the Small Craft Advisory, until 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. && $$ LSZ263-264-101415- /O.CON.KMQT.GL.W.0043.251010T1200Z-251011T0000Z/ Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1004 PM EDT Thu Oct 9 2025 ...GALE WARNING REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt becoming northwest winds 15 to 25 kt with gusts up to 40 kt by Friday afternoon; waves 4 to 7 ft expected. * WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...From 8 AM to 8 PM EDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ265-266-101415- /O.CON.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- 1004 PM EDT Thu Oct 9 2025 ...GALE WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt becoming west to northwest winds 20 to 25 kt with gusts up to 40 kt Friday afternoon; 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. && $$ LMZ221-101415- /O.EXT.KMQT.SC.Y.0158.251010T0300Z-251011T1200Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT SATURDAY... * WHAT...South to southwest winds 15 to 25 kt with gusts up to 30 kt becoming northwest to north winds 10 to 20 kt with gusts up 25 kt late Friday. Waves 2 to 5 ft expected. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 8 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ248-250-101415- /O.CON.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- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT SATURDAY... * WHAT...South to southwest winds 15 to 25 kt with gusts up to 30 kt becoming northwest to north winds 10 to 20 kt with gusts up to 25 kt Friday evening. 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...Until 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. && $$ LSZ240-241-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251011T0000Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- 1004 PM EDT Thu Oct 9 2025 /904 PM CDT Thu Oct 9 2025/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ FRIDAY... * WHAT...South to southwest winds 10 to 20 kt with gusts up to 30 kt becoming west to northwest winds 15 to 25 kt with gusts up to 30 kt Friday. Waves 3 to 6 ft expected. * WHERE...Saxon Harbor WI to Black River MI and Black River to Ontonagon MI. * WHEN...Until 8 PM EDT /7 PM CDT/ Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-101415- /O.CON.KMQT.SC.Y.0158.000000T0000Z-251011T0000Z/ Grand Marais to Whitefish Point MI- 1004 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... * WHAT...South to southwest winds 10 to 20 kt with gusts up to 30 kt becoming northwest winds 10 to 20 kt with gusts up to 30 kt by Friday evening. Waves 2 to 5 ft expected. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 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. && $$ TAP