


Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
926 WHUS73 KMQT 170958 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI Issued by National Weather Service Green Bay WI 558 AM EDT Sat May 17 2025 LSZ264-172200- /O.NEW.KMQT.GL.W.0036.250517T1800Z-250518T0000Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 558 AM EDT Sat May 17 2025 ...GALE WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... * WHAT...North winds 20 to 25 kt with gusts up to 35 kt and waves 5 to 8 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 2 PM this afternoon to 8 PM EDT 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. && $$ LSZ243-244-172200- /O.EXB.KMQT.SC.Y.0102.250517T1800Z-250518T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM EDT SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft expected. * WHERE...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...From 2 PM this afternoon to 2 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ266-267-171500- /O.CON.KMQT.MF.Y.0006.000000T0000Z-250517T1500Z/ 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- 558 AM EDT Sat May 17 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * 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...Until 11 AM EDT this morning. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-248-250-172200- /O.CON.KMQT.SC.Y.0102.250517T2300Z-250518T1200Z/ Green Bay North of line from Cedar River MI to Rock Island Passage-Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 8 AM EDT SUNDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 3 ft expected. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage, Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 7 PM this evening to 8 AM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ245-172200- /O.CON.KMQT.SC.Y.0102.250517T1800Z-250518T1500Z/ Manitou Island to Point Isabelle MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM EDT SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...From 2 PM this afternoon to 11 AM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-172200- /O.CON.KMQT.SC.Y.0102.250517T1800Z-250518T0200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI. * WHEN...From 2 PM this afternoon to 10 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ247-172200- /O.CON.KMQT.SC.Y.0102.250517T2000Z-250518T0000Z/ Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 3 ft expected. * WHERE...Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 4 PM this afternoon to 8 PM EDT 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. && $$ LSZ248-249-172200- /O.CON.KMQT.SC.Y.0102.250517T1800Z-250519T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with a few gale force gusts up to 35 kt and waves 6 to 9 ft expected. * WHERE...Huron Islands to Marquette MI and Marquette to Munising MI. * WHEN...From 2 PM this afternoon to 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-172200- /O.CON.KMQT.SC.Y.0102.250517T2000Z-250519T0000Z/ Munising to Grand Marais MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 8 PM EDT SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and waves 6 to 9 ft expected. * WHERE...Munising to Grand Marais MI. * WHEN...From 4 PM this afternoon to 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-172200- /O.CON.KMQT.SC.Y.0102.250518T0200Z-250518T1500Z/ Grand Marais to Whitefish Point MI- 558 AM EDT Sat May 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 11 AM EDT SUNDAY... * WHAT...North winds 15 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...From 10 PM this evening to 11 AM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$