Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
099 WHUS73 KMQT 152036 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 336 PM EST Mon Dec 15 2025 LSZ242-160845- /O.CAN.KMQT.SC.Y.0202.000000T0000Z-251215T2100Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251216T2100Z/ /O.UPG.KMQT.GL.A.0038.251216T2100Z-251217T0900Z/ /O.NEW.KMQT.GL.W.0062.251216T2100Z-251217T0900Z/ Ontonagon to Upper Entrance of Portage Canal MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 4 PM EST TUESDAY... ...GALE WARNING IN EFFECT FROM 4 PM TUESDAY TO 4 AM EST WEDNESDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 4 to 7 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 7 to 12 ft expected. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...For the Small Craft Advisory, from 7 AM to 4 PM EST Tuesday. For the Gale Warning, from 4 PM Tuesday to 4 AM EST Wednesday. * 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. && $$ LSZ250-251-160845- /O.CON.KMQT.SC.Y.0200.000000T0000Z-251216T0600Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251216T1500Z/ /O.UPG.KMQT.GL.A.0038.251216T1500Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T1500Z-251217T1200Z/ Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 10 AM EST TUESDAY... ...GALE WARNING IN EFFECT FROM 10 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...For the first Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. For the second Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 3 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 40 kt and waves 9 to 14 ft expected. * WHERE...Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the first Small Craft Advisory, until 1 AM EST Tuesday. For the second Small Craft Advisory, from 7 AM to 10 AM EST Tuesday. For the Gale Warning, from 10 AM Tuesday to 7 AM EST Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ243-244-160845- /O.EXT.KMQT.SC.Y.0202.000000T0000Z-251215T2300Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251216T1800Z/ /O.UPG.KMQT.GL.A.0038.251216T1800Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T1800Z-251217T1200Z/ Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 1 PM EST TUESDAY... ...GALE WARNING IN EFFECT FROM 1 PM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...For the first Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 4 ft occurring. For the second Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 8 to 13 ft expected. * WHERE...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the first Small Craft Advisory, until 6 PM EST this evening. For the second Small Craft Advisory, from 7 AM to 1 PM EST Tuesday. For the Gale Warning, from 1 PM Tuesday to 7 AM EST Wednesday. * 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. && $$ LSZ249-160845- /O.NEW.KMQT.SC.Y.0203.251215T2200Z-251216T0400Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251217T0600Z/ /O.UPG.KMQT.GL.A.0038.251217T0600Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251217T0600Z-251217T1200Z/ Marquette to Munising MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TUESDAY TO 1 AM EST WEDNESDAY... ...GALE WARNING IN EFFECT FROM 1 AM TO 7 AM EST WEDNESDAY... * WHAT...For the first Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 20 kt and waves 2 to 4 ft expected. For the second Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 5 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 40 kt and waves 7 to 12 ft expected. * WHERE...Marquette to Munising MI. * WHEN...For the first Small Craft Advisory, until 11 PM EST this evening. For the second Small Craft Advisory, from 7 AM Tuesday to 1 AM EST Wednesday. For the Gale Warning, from 1 AM to 7 AM EST Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ241-160845- /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251216T2100Z/ /O.UPG.KMQT.GL.A.0038.251216T2100Z-251217T0900Z/ /O.NEW.KMQT.GL.W.0062.251216T2100Z-251217T0900Z/ Black River to Ontonagon MI- 336 PM EST Mon Dec 15 2025 /236 PM CST Mon Dec 15 2025/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST /6 AM CST/ TO 4 PM EST /3 PM CST/ TUESDAY... ...GALE WARNING IN EFFECT FROM 4 PM EST /3 PM CST/ TUESDAY TO 4 AM EST /3 AM CST/ WEDNESDAY... * WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 40 kt and waves 6 to 9 ft expected. * WHERE...Black River to Ontonagon MI. * WHEN...For the Small Craft Advisory, from 7 AM EST /6 AM CST/ to 4 PM EST /3 PM CST/ Tuesday. For the Gale Warning, from 4 PM EST /3 PM CST/ Tuesday to 4 AM EST /3 AM CST/ Wednesday. * 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. && $$ LSZ245>248-160845- /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251216T2100Z/ /O.UPG.KMQT.GL.A.0038.251216T2100Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T2100Z-251217T1200Z/ Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays-Huron Islands to Marquette MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 4 PM EST TUESDAY... ...GALE WARNING IN EFFECT FROM 4 PM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. For the Gale Warning, southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 3 to 6 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays and Huron Islands to Marquette MI. * WHEN...For the Small Craft Advisory, from 7 AM to 4 PM EST Tuesday. For the Gale Warning, from 4 PM Tuesday to 7 AM EST Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ162-160845- /O.UPG.KMQT.GL.A.0038.251216T1200Z-251217T0600Z/ /O.NEW.KMQT.GL.W.0062.251216T1200Z-251217T0600Z/ Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 336 PM EST Mon Dec 15 2025 /236 PM CST Mon Dec 15 2025/ ...GALE WARNING IN EFFECT FROM 7 AM EST /6 AM CST/ TUESDAY TO 1 AM EST /MIDNIGHT CST/ WEDNESDAY... * WHAT...Southwest winds becoming northwest winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 11 ft expected. * WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM. * WHEN...From 7 AM EST /6 AM CST/ Tuesday to 1 AM EST /midnight CST/ Wednesday. * 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. && $$ LSZ263-160845- /O.UPG.KMQT.GL.A.0038.251216T1200Z-251217T0900Z/ /O.NEW.KMQT.GL.W.0062.251216T1200Z-251217T0900Z/ Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 336 PM EST Mon Dec 15 2025 ...GALE WARNING IN EFFECT FROM 7 AM TUESDAY TO 4 AM EST WEDNESDAY... * WHAT...Southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 8 to 13 ft expected. * WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park. * WHEN...From 7 AM Tuesday to 4 AM EST Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ264-160845- /O.UPG.KMQT.GL.A.0038.251216T1200Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T1200Z-251217T1200Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 336 PM EST Mon Dec 15 2025 ...GALE WARNING IN EFFECT FROM 7 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...Southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 10 to 15 ft expected. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...From 7 AM Tuesday to 7 AM EST Wednesday. * 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. && $$ LSZ265-160845- /O.UPG.KMQT.GL.A.0038.251216T2100Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T2100Z-251217T1200Z/ Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 336 PM EST Mon Dec 15 2025 ...GALE WARNING IN EFFECT FROM 4 PM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...Southwest winds becoming northwest winds 30 to 40 kt with gusts up to 45 kt and waves 7 to 10 ft expected. * WHERE...Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore. * WHEN...From 4 PM Tuesday to 7 AM EST Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ266-267-160845- /O.UPG.KMQT.GL.A.0038.251216T1500Z-251217T1200Z/ /O.NEW.KMQT.GL.W.0062.251216T1500Z-251217T1200Z/ 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- 336 PM EST Mon Dec 15 2025 ...GALE WARNING IN EFFECT FROM 10 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...Southwest winds becoming northwest winds 25 to 35 kt with gusts up to 45 kt and waves 10 to 15 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...From 10 AM Tuesday to 7 AM EST Wednesday. * 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. && $$ LMZ248-160845- /O.CON.KMQT.SC.Y.0201.000000T0000Z-251216T0100Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251217T1200Z/ Seul Choix Point to Point Detour MI- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...For the first Small Craft Advisory, west winds 5 to 10 kt with gusts up to 15 kt and waves 2 to 4 ft occurring. For the second Small Craft Advisory, southwest winds 20 to 30 kt with a few gale force gusts up to 35 kt and waves 6 to 11 ft expected. * WHERE...Seul Choix Point to Point Detour MI. * WHEN...For the first Small Craft Advisory, until 8 PM EST this evening. For the second Small Craft Advisory, from 7 AM Tuesday to 7 AM EST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ250-160845- /O.CON.KMQT.SC.Y.0201.000000T0000Z-251215T2200Z/ /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251217T1200Z/ 5NM East of a line from Fairport MI to Rock Island Passage- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...For the first Small Craft Advisory, west winds 10 to 15 kt and waves 2 to 4 ft occurring. For the second Small Craft Advisory, southwest winds 20 to 30 kt with a few gale force gusts to 35 kt and waves 7 to 10 ft expected. * WHERE...5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the first Small Craft Advisory, until 5 PM EST this afternoon. For the second Small Craft Advisory, from 7 AM Tuesday to 7 AM EST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ240-160845- /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251217T1200Z/ Saxon Harbor WI to Black River MI- 336 PM EST Mon Dec 15 2025 /236 PM CST Mon Dec 15 2025/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST /6 AM CST/ TUESDAY TO 7 AM EST /6 AM CST/ WEDNESDAY... * WHAT...Southwest winds 20 to 30 kt with a few gale force gusts up to 35 kt and waves 3 to 6 ft expected. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...From 7 AM EST /6 AM CST/ Tuesday to 7 AM EST /6 AM CST/ Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ221-160845- /O.NEW.KMQT.SC.Y.0204.251216T1200Z-251217T1200Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 336 PM EST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TUESDAY TO 7 AM EST WEDNESDAY... * WHAT...Southwest winds 15 to 25 kt with a few gale force gusts up to 35 kt and waves 4 to 7 ft expected. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...From 7 AM Tuesday to 7 AM EST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GS