390
WHUS73 KMQT 180758
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
358 AM EDT Mon Aug 18 2025

LSZ242-247-248-182000-
/O.CON.KMQT.SC.Y.0133.250818T1400Z-250819T0000Z/
Ontonagon to Upper Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
358 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 8 PM EDT THIS EVENING...

* WHAT...Southeast winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 2 ft expected.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Lower
  Entrance of Portage Canal To Huron Islands MI Including
  Keweenaw and Huron Bays and Huron Islands to Marquette MI.

* WHEN...From 10 AM this morning to 8 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.

&&

$$

LSZ243>246-182000-
/O.CON.KMQT.SC.Y.0133.250818T1100Z-250819T0300Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
358 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 11 PM EDT THIS EVENING...

* WHAT...Southeast winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 4 ft expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI,
  Eagle River to Manitou Island MI, Manitou Island to Point
  Isabelle MI and Point Isabelle to Lower Entrance of Portage
  Canal MI.

* WHEN...From 7 AM this morning to 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.

&&

$$

GS