WHUS73 KMQT 110949 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 549 AM EDT Thu Jun 11 2026 LSZ263-264-266-111800- /O.EXT.KMQT.MF.Y.0018.000000T0000Z-260611T1800Z/ 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- 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- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 2 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. && $$ LSZ267-111800- /O.EXT.KMQT.MF.Y.0018.000000T0000Z-260611T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0500Z-260612T2300Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 549 AM EDT Thu Jun 11 2026 /449 AM CDT Thu Jun 11 2026/ ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT /7 AM CDT/ THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM EDT /MIDNIGHT CDT/ TO 7 PM EDT /6 PM CDT/ FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest to west winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT /7 AM CDT/ this morning. For the Small Craft Advisory, from 1 AM EDT /midnight CDT/ to 7 PM EDT /6 PM CDT/ Friday. * 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. && $$ LSZ243-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0600Z-260613T0000Z/ Upper Entrance of Portage Canal to Eagle River MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest to west winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft expected. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 2 AM to 8 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-245-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0800Z-260613T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 PM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 4 AM to 8 PM EDT Friday. * 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. && $$ LSZ246-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0600Z-260613T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 2 AM to 8 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ247-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0800Z-260613T0000Z/ Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 PM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest to west winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft expected. * WHERE...Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 4 AM to 8 PM EDT Friday. * 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. && $$ LSZ248-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0500Z-260612T1500Z/ Huron Islands to Marquette MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 3 ft expected. * WHERE...Huron Islands to Marquette MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 1 AM to 11 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ249-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0500Z-260612T0800Z/ Marquette to Munising MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 AM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 3 ft expected. * WHERE...Marquette to Munising MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 1 AM to 4 AM EDT Friday. * 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. && $$ LSZ250-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0400Z-260612T1200Z/ Munising to Grand Marais MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Munising to Grand Marais MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from midnight tonight to 8 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ251-112200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ /O.CON.KMQT.SC.Y.0094.260612T0400Z-260612T1200Z/ Grand Marais to Whitefish Point MI- 549 AM EDT Thu Jun 11 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest to west winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from midnight tonight to 8 AM EDT Friday. * 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. && $$ LSZ162-240-265-111200- /O.CON.KMQT.MF.Y.0018.000000T0000Z-260611T1200Z/ Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM-Saxon Harbor WI to Black River MI- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 549 AM EDT Thu Jun 11 2026 /449 AM CDT Thu Jun 11 2026/ ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT /7 AM CDT/ THIS MORNING... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 AM EDT /7 AM CDT/ this morning. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-112200- /O.CON.KMQT.SC.Y.0094.260612T0200Z-260612T0800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 549 AM EDT Thu Jun 11 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM EDT FRIDAY... * WHAT...Southwest to west winds 10 to 15 kt with gusts up to 30 kt and waves 1 to 3 ft expected. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...From 10 PM this evening to 4 AM 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. && $$ LMZ248-250-112200- /O.CON.KMQT.SC.Y.0094.260612T0200Z-260612T1000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 549 AM EDT Thu Jun 11 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 6 AM EDT FRIDAY... * WHAT...South to west winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 10 PM this evening to 6 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP