947
WHUS73 KAPX 050256
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
956 PM EST Thu Dec 4 2025

LMZ323-341-342-344>346-051100-
/O.CON.KAPX.GL.W.0032.251205T0300Z-251205T1600Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
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-
956 PM EST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and
  highest waves around 13 feet expected.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 11 AM EST Friday.

* 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.

&&

$$

LHZ345-051100-
/O.CON.KAPX.GL.W.0032.251205T0300Z-251205T1600Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
956 PM EST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and
  highest waves around 6 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
  including Mackinac Island.

* WHEN...Until 11 AM EST Friday.

* 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.

&&

$$

LSZ321-051100-
/O.CON.KAPX.GL.W.0032.251205T0400Z-251205T1600Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
956 PM EST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and
  highest waves around 6 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
  Iroquois MI.

* WHEN...Until 11 AM EST Friday.

* 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.

&&

$$

LHZ346>348-051100-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251205T2200Z/
St Ignace to False Detour Channel-
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-
956 PM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST FRIDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and
  highest waves around 7 feet.

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

* WHEN...Until 5 PM EST 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.

&&

$$

LHZ349-051100-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251206T1000Z/
Sturgeon Pt to Alabaster MI-
956 PM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kts from the southwest and
  highest waves around 8 feet.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...Until 5 AM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-051100-
/O.CON.KAPX.SC.Y.0119.251205T0400Z-251206T1600Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
956 PM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST
SATURDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and
  highest waves around 4 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing
  Bay.

* WHEN...Until 11 AM EST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$