WHUS73 KMQT 200020
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
820 PM EDT Tue May 19 2026

LMZ248-250-LSZ241-242-244>247-200130-
/O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves have fallen below small craft criteria.

$$

LSZ249-201230-
/O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/
Marquette to Munising MI-
820 PM EDT Tue May 19 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and 
  waves 2 to 5 ft occurring.

* WHERE...Marquette to Munising MI.

* WHEN...Until 11 AM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ251-201230-
/O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/
Grand Marais to Whitefish Point MI-
820 PM EDT Tue May 19 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and 
  waves 4 to 6 ft occurring.

* WHERE...Grand Marais to Whitefish Point MI.

* WHEN...Until 2 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LSZ248-200300-
/O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/
Huron Islands to Marquette MI-
820 PM EDT Tue May 19 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and 
  waves 2 to 4 ft occurring.

* WHERE...Huron Islands to Marquette MI.

* 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.

&&

$$

LSZ250-201230-
/O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/
Munising to Grand Marais MI-
820 PM EDT Tue May 19 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT
WEDNESDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and 
  waves 3 to 6 ft occurring.

* WHERE...Munising to Grand Marais MI.

* WHEN...Until 2 PM EDT Wednesday.

* 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