Marine Weather Message
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
488 WHUS73 KMQT 180143 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 943 PM EDT Fri Oct 17 2025 LSZ249>251-181345- /O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0600Z/ /O.CON.KMQT.GL.A.0024.251019T1200Z-251020T0300Z/ Marquette to Munising MI-Munising to Grand Marais MI- Grand Marais to Whitefish Point MI- 943 PM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... * WHAT...For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 3 ft occurring. For the Gale Watch, northwest winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 11 ft possible. * WHERE...Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Small Craft Advisory, until 2 AM EDT Saturday. For the Gale Watch, from Sunday morning through Sunday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ221-180600- /O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0600Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 943 PM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... * WHAT...South winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft occurring. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ247-180300- /O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T0300Z/ Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 943 PM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Southwest winds around 10 kt with gusts up to 20 kt and waves around 1 foot occurring. * WHERE...Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 11 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. && $$ LMZ248-250-181200- /O.CON.KMQT.SC.Y.0162.000000T0000Z-251018T1200Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 943 PM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT SATURDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and waves 6 to 9 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...Until 8 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ266-267-181345- /O.CON.KMQT.GL.A.0024.251019T1200Z-251020T0300Z/ 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- 943 PM EDT Fri Oct 17 2025 ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 10 ft possible. * 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 Sunday morning through Sunday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$