275
WHUS73 KAPX 041631
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1131 AM EST Thu Dec 4 2025

LMZ323-341-342-344>346-050045-
/O.CAN.KAPX.SC.Y.0118.000000T0000Z-251204T1800Z/
/O.CON.KAPX.GL.W.0032.251205T0300Z-251205T1500Z/
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-
1131 AM EST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 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...From 10 PM this evening to 10 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-LSZ322-041745-
/O.CAN.KAPX.SC.Y.0118.000000T0000Z-251204T1800Z/
St Ignace to False Detour Channel-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1131 AM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

LHZ345-347>349-LSZ321-042200-
/O.EXT.KAPX.SC.Y.0118.000000T0000Z-251204T2200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
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-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1131 AM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON...

* WHAT...Highest gusts up to 25 kts from the west and highest
  waves around 8 feet.

* WHERE...In Lake Huron, Straits of Mackinac within 5 nm of
  Mackinac Bridge including Mackinac Island, 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.
  In Lake Superior, Whitefish Bay (U. S. Portion)/Whitefish
  Point to Point Iroquois MI.

* WHEN...Until 5 PM EST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$