634
WHUS73 KMKX 031957
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
157 PM CST Wed Dec 3 2025

LMZ261-362-364-366-563-565-040400-
/O.UPG.KMKX.GL.A.0026.251205T0300Z-251205T1200Z/
/O.NEW.KMKX.GL.W.0034.251205T0300Z-251205T1500Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
157 PM CST Wed Dec 3 2025

...GALE WARNING IN EFFECT FROM 9 PM THURSDAY TO 9 AM CST FRIDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 7 to 12 ft expected.

* WHERE...Northern Third of the Open Waters of Lake Michigan,
  Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
  Mid Lake, and Lake Michigan from Sturgeon Bay to Two Rivers WI
  5NM offshore to Mid Lake.

* WHEN...From 9 PM Thursday to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-040400-
/O.CON.KMKX.SC.Y.0105.000000T0000Z-251204T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
157 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
THURSDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...Until 6 AM CST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MRC