URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1010 PM EDT Mon Jun 29 2026

LSZ263-264-301200-
/O.CON.KMQT.MF.Y.0021.000000T0000Z-260630T1200Z/
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-
1010 PM EDT Mon Jun 29 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY...

* WHAT...Dense fog will reduce visibility to less than one
  nautical mile.

* 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 and Lake Superior from
  Upper Entrance to Portage Canal to Manitou Island MI 5NM off
  shore to the US/Canadian Border.

* WHEN...Until 8 AM EDT Tuesday.

* 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.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
853 PM CDT Mon Jun 29 2026

LMZ563-301000-
/O.CON.KMKX.MF.Y.0013.000000T0000Z-260630T1200Z/
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
853 PM CDT Mon Jun 29 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY...

* WHAT...Dense fog will reduce visibility to 1 NM or less.

* WHERE...Western portions of the open waters of Lake Michigan
  from offshore Sturgeon Bay to offshore Washington Island to mid
  lake.

* WHEN...Until 7 AM CDT Tuesday.

* 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.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
649 PM CDT Mon Jun 29 2026

LMZ541-300800-
/O.CON.KGRB.MF.Y.0015.000000T0000Z-260630T1500Z/
/O.CON.KGRB.SC.Y.0063.000000T0000Z-260701T0900Z/
Rock Island Passage to Sturgeon Bay WI-
649 PM CDT Mon Jun 29 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 mile at times. For the Small Craft
  Advisory, south winds 10 to 15 kt with gusts up to 25 kt and
  waves 3 to 6 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island
  to Sturgeon Bay.

* WHEN...For the Dense Fog Advisory, until 10 AM CDT Tuesday.
  For the Small Craft Advisory, until 4 AM CDT Wednesday.

* 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.

&&

$$

Kurimski

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
424 PM CDT Mon Jun 29 2026

LSZ140>145-300930-
/O.NEW.KDLH.MF.Y.0019.260629T2124Z-260630T1300Z/
/O.CON.KDLH.SC.Y.0079.000000T0000Z-260630T0300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
424 PM CDT Mon Jun 29 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  northeast winds 10 to 15 kt with gusts up to 30 kt and waves 2
  to 3 ft.

* WHERE...Portions of Lake Superior.

* WHEN...For the Dense Fog Advisory, until 8 AM CDT Tuesday. For
  the Small Craft Advisory, until 10 PM CDT this evening.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel 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.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
424 PM CDT Mon Jun 29 2026

LSZ121-146>148-150-300930-
/O.NEW.KDLH.MF.Y.0019.260629T2124Z-260630T1300Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
424 PM CDT Mon Jun 29 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY...

* WHAT...Dense fog will reduce visibility to below 1 NM.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI, Port Wing to
  Sand Island WI, Sand Island to Bayfield WI, Oak Point to Saxon
  Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 8 AM CDT Tuesday.

* 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.

&&

$$