WHUS73 KMQT 181414 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1014 AM EDT Mon May 18 2026 LSZ244-182100- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260518T2100Z/ /O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1800Z/ Eagle River to Manitou Island MI- 1014 AM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest winds 5 to 10 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 5 PM EDT this afternoon. For the Small Craft Advisory, until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. 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. && $$ LMZ248-250-190215- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260518T1500Z/ /O.CON.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1014 AM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 11 AM EDT this morning. For the Small Craft Advisory, until 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-181515- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260518T1500Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1014 AM EDT Mon May 18 2026 ...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...Green Bay North of line from Cedar River MI to Rock Island Passage. * 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. && $$ LSZ264>266-182100- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260518T2100Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 1014 AM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 5 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190000- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T0000Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1014 AM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 8 PM EDT this evening. * 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. && $$ LSZ245-181800- /O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1800Z/ Manitou Island to Point Isabelle MI- 1014 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Southwest winds 5 to 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-181515- /O.CON.KMQT.SC.Y.0085.000000T0000Z-260518T1500Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1014 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...Southwest winds 5 kt or less with gusts up to 10 kt and waves 1 to 4 ft occurring. * WHERE...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...Until 11 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$