603
WHUS73 KMKX 091948
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
148 PM CST Tue Dec 9 2025

LMZ645-646-100400-
/O.EXT.KMKX.SC.Y.0109.251210T0000Z-251210T1100Z/
/O.EXB.KMKX.GL.W.0036.251210T1100Z-251210T1800Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
148 PM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
5 AM CST WEDNESDAY...
...GALE WARNING IN EFFECT FROM 5 AM TO NOON CST WEDNESDAY...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 20
  kt with gusts up to 30 kt expected. For the Gale Warning,
  northwest winds 20 to 30 kt with gusts up to 35 kt and waves 7
  to 10 ft expected.

* WHERE...Nearshore Waters from North Point Lighthouse to
  Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, from 6 PM this evening to
  5 AM CST Wednesday. For the Gale Warning, from 5 AM to noon
  CST Wednesday.

* 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.

&&

$$

LMZ643-644-100400-
/O.EXT.KMKX.SC.Y.0109.251210T0000Z-251210T1100Z/
/O.EXT.KMKX.GL.W.0036.251210T1100Z-251210T1800Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
148 PM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
5 AM CST WEDNESDAY...
...GALE WARNING NOW IN EFFECT FROM 5 AM TO NOON CST WEDNESDAY...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 20
  kt with gusts up to 25 kt expected. For the Gale Warning,
  north winds 20 to 30 kt with gusts up to 35 kt and waves 5 to
  8 ft expected.

* WHERE...Nearshore Waters from Sheboygan to North Point
  Lighthouse.

* WHEN...For the Small Craft Advisory, from 6 PM this evening to
  5 AM CST Wednesday. For the Gale Warning, from 5 AM to noon
  CST Wednesday.

* 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.

&&

$$

LMZ080-673-675-777-779-874-876-878-100400-
/O.CON.KMKX.GL.W.0036.251210T0300Z-251211T0000Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
148 PM CST Tue Dec 9 2025

...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM
CST WEDNESDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 knots
  tonight. Northwest winds 20 to 30 kt with gusts up to 40 kt on
  Wednesday. Waves 10 to 15 ft expected.

* WHERE...Southern Third of the Open Waters of Lake Michigan.

* WHEN...From 9 PM this evening to 6 PM CST Wednesday.

* 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.

&&

$$

LMZ366-565-567-669-671-868-870-872-100400-
/O.CON.KMKX.GL.W.0036.251210T1100Z-251211T0000Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
148 PM CST Tue Dec 9 2025

...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 6 PM CST
WEDNESDAY...

* WHAT...North winds 25 to 30 kt with gusts up to 35 kt and
  waves 8 to 13 ft expected.

* WHERE...Central Third of the Open Waters of Lake Michigan.

* WHEN...From 5 AM to 6 PM CST Wednesday.

* 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.

&&

$$