Marine Weather Message
Issued by NWS Gaylord, MI

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149
WHUS73 KAPX 071948
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
348 PM EDT Mon Apr 7 2025

LHZ347>349-080300-
/O.CON.KAPX.GL.W.0017.000000T0000Z-250408T0300Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
348 PM EDT Mon Apr 7 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING...

* WHAT...Highest gusts up to 35 kts from the northwest and
  highest waves around 8 feet expected.

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI
  including Bois Blanc Island, Presque Isle Light to Sturgeon Pt
  MI Including Thunder Bay National Marine Sanctuary and
  Sturgeon Pt to Alabaster MI.

* WHEN...From 9 AM this morning to 11 PM EDT this evening.

* IMPACTS...Strong winds will cause hazardous highest waves
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-080400-
/O.EXT.KAPX.SC.Y.0044.000000T0000Z-250408T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
348 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EDT TUESDAY...

* WHAT...Highest gusts up to 30 kts from the north and highest
  waves around 7 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
  Iroquois MI and St. Marys River Point Iroquois to E.
  Potagannissing Bay.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345-LMZ341-080400-
/O.CON.KAPX.SC.Y.0044.000000T0000Z-250408T0400Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-Seul Choix Point to 5NM West of Mackinac Bridge-
348 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

* WHAT...Highest gusts up to 30 kts from the north and highest
  waves around 4 feet expected.

* WHERE...In Lake Huron, Straits of Mackinac within 5 nm of
  Mackinac Bridge including Mackinac Island. In Lake Michigan,
  Seul Choix Point to 5NM West of Mackinac Bridge.

* WHEN...Until midnight EDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ346-080400-
/O.CON.KAPX.SC.Y.0044.000000T0000Z-250408T1200Z/
St Ignace to False Detour Channel-
348 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kts from the north and highest
  waves around 4 feet expected.

* WHERE...St Ignace to False Detour Channel.

* WHEN...From 11 AM this morning to 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-342-344>346-080400-
/O.CON.KAPX.SC.Y.0044.000000T0000Z-250408T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
348 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kts from the north and highest
  waves around 9 feet.

* WHERE...Grand Traverse Bay south of a line Grand Traverse
  Light to Norwood MI, Norwood MI to 5NM West of Mackinac Bridge
  including Little Traverse Bay, Sleeping Bear Point to Grand
  Traverse Light MI, Point Betsie to Sleeping Bear Point MI and
  Manistee to Point Betsie MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$