Gale Warning 39, NWS Milwaukee, WI

909 
WHUS73 KMKX 171819
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1219 PM CST Wed Dec 17 2025

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180230-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
1219 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 8 to 13 ft expected.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...From 11 PM this evening 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>646-180230-
/O.CON.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.CON.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
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-
1219 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST THURSDAY...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
LATE THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 8 ft expected. For the 
  Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt 
  possible.

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

* WHEN...For the Small Craft Advisory, from 6 PM this evening to 
  6 PM CST Thursday. For the Gale Watch, from Thursday evening 
  through late Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

735 
WHUS73 KMKX 172053
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
253 PM CST Wed Dec 17 2025

LMZ643>646-180500-
/O.CON.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.UPG.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
/O.EXB.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
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-
253 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST THURSDAY...
...GALE WARNING IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST FRIDAY...

* WHAT...For the Small Craft Advisory, south to southwest winds 15
  to 25 kt with gusts up to 30 kt and waves 5 to 8 ft expected. A
  few gale force gusts up to 35 kt are possible. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 40 kt expected.

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

* WHEN...For the Small Craft Advisory, from 6 PM this evening to 
  6 PM CST Thursday. For the Gale Warning, from 6 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.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180500-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
253 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...South-southwest winds 20 to 30 kt with gusts up to 40 kt
  and waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft. 

* WHERE...All Open Waters of Lake Michigan.

* WHEN...From 11 PM this evening 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.

&&

$$

MRC

551 
WHUS73 KMKX 180334
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
934 PM CST Wed Dec 17 2025

LMZ643>646-181145-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
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-
934 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST
FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 35 kt and waves 5 to 8 ft. Isolated gale force
  gusts up to 35 kt are possible. For the Gale Warning, west 
  winds 20 to 30 kt with gusts up to 40 kt expected.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST Thursday. 
  For the Gale Warning, from 6 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.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181145-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
934 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 40 kt and
  waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft Thursday evening into Friday morning.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 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.

&&

$$

356 
WHUS73 KMKX 180850
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
250 AM CST Thu Dec 18 2025

LMZ643>646-181700-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
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-
250 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to gale
  force possible through early this afternoon. For the Gale
  Warning, west to northwest winds 20 to 30 kt with gusts up to 35 
  kt expected.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening 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.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181700-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
250 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft.
  From this evening onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A brief lull in the gales may occur late
  this afternoon. Moderate freezing spray is expected to accompany
  the gales late tonight through Friday morning. 

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.

&&

$$

Sheppard

242 
WHUS73 KMKX 181540
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
940 AM CST Thu Dec 18 2025

LMZ643>646-182345-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
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-
940 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening 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.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-182345-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
940 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 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.

&&

$$

170 
WHUS73 KMKX 182035
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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 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 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-
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-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until noon 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.

&&

$$

LMZ261-362-364-563-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
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 Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 2 PM 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>646-190445-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
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-
235 PM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening 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.

&&

$$

580 
WHUS73 KMKX 190304
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
904 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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 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 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-
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-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...West winds 25 to 35 kt and waves 8 to 13 ft.

* WHERE...Southern Two Thirds of the Open Waters of Lake 
  Michigan.

* WHEN...Until noon 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>646-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
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-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt.

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

* WHEN...Until 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.

&&

$$

LMZ261-362-364-563-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
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 Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 6 to 9 ft.

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

* WHEN...Until 2 PM 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.

&&

$$

371 
WHUS73 KMKX 190835
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 AM CST Fri Dec 19 2025

LMZ643>646-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
/O.NEW.KMKX.SC.Y.0115.251219T1500Z-251219T2000Z/
/O.NEW.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
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-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM
CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

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

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

* 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.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
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 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 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-
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-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  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 Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* 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.

&&

$$

LMZ261-362-364-563-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
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 Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

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

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* 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.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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 St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of 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 and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* 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.

&&

$$

527 
WHUS73 KMKX 191624
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1024 AM CST Fri Dec 19 2025

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
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 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 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-
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-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  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 Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* 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.

&&

$$

LMZ261-362-364-563-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
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 Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

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

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* 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.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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 St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of 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 and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* 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>646-200030-
/O.CON.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.CON.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
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-
1024 AM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 AM CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

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

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

519 
WHUS73 KMKX 192012
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
212 PM CST Fri Dec 19 2025

LMZ261-362-364-563-200415-
/O.EXP.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
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 Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  waves 6 to 11 ft expected.

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

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

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

* ADDITIONAL DETAILS...The previous Gale Warning over the northern
  third of the open waters has expired.

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>646-200415-
/O.EXP.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.EXT.KMKX.SC.Y.0116.251220T0500Z-251220T2100Z/
/O.NEW.KMKX.GL.W.0040.251220T2100Z-251221T0900Z/
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-
212 PM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO
3 PM CST SATURDAY...
...GALE WARNING IN EFFECT FROM 3 PM SATURDAY TO 3 AM CST SUNDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 25 
  kt with gusts up to 35 kt and waves 5 to 8 ft expected. For 
  the Gale Warning, west winds 20 to 30 kt with gusts up to 35 
  kt expected.

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

* WHEN...For the Small Craft Advisory, from 11 PM this evening 
  to 3 PM CST Saturday. For the Gale Warning, from 3 PM Saturday 
  to 3 AM CST Sunday.

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

* ADDITIONAL DETAILS...The Small Craft Advisory from early this
  afternoon has expired.

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.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200415-
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
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 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 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-
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-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...

* WHAT...West winds 25 to 35 kt with gusts up to 40 kt and waves 
  7 to 12 ft expected.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  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 Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

* 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.

&&

$$

LMZ080-777-779-878-200415-
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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 St Joseph to South Haven MI 5NM offshore to
Mid Lake-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  waves 7 to 10 ft expected.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of 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 and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

* 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.

&&

$$

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
916 PM CST Tue Dec 16 2025

.KEY MESSAGES...

- Milder temperatures expected through early Thursday, with
  highs in the middle to upper 30s.

- 65-90% rain chances are forecast from late Wednesday night
  through Thursday morning. There are 20-40% chances for light
  precipitation to continue Thursday afternoon and evening, with
  a gradual transition to light snow.

- Significantly colder temperatures (single digit low temps)
  expected Thursday night, freezing any surfaces that remain wet
  from Thursday's rain and snow.

&&

.UPDATE...
Issued 915 PM CST Tue Dec 16 2025

Forecast remains largely on track this evening. Broken mid-
upper clouds have filled in across the region ahead of a
disturbance approaching from the Northern Plains, leading to
nearly steady temperatures. A surface front accompanies the
aforementioned disturbance, with 9 PM CST surface obs placing
the boundary along an approximate Bayfield, WI to Rochester, MN
axis. Moving in tandem with the parent upper disturbance, the
front will quickly progress east across the region through the
predawn hours, resulting in a gusty northwest wind shift. Dry
conditions in the lower part of the column will keep conditions
precip-free during the frontal passage. The post-frontal
northwest winds will bring a slightly cooler air mass into the
region for the day tomorrow.

Quigley

&&

.SHORT TERM...
Issued 338 PM CST Tue Dec 16 2025

Tonight through Wednesday night:

A surface trough/cold front will slide across southern WI
tonight. This is coincident with a mid level trough. South-
southwest winds are gusty ahead of it and northwest winds will
continue to be a little gusty behind it during the overnight
hours. Our temperatures over-performed this afternoon with the
extreme warm air advection. Expect mid level clouds along the
front this evening. There is a chance for some scattered low
clouds behind it during the overnight hours due to trapped low
level moisture, but the air (and winds) just above the inversion
will be very dry (and gusty). The question is how much mixing
will occur down to the surface behind the front. The hinting of
low clouds from the models and trapped low level moisture may
also be from the melting snow with the mild temps this
afternoon. The winds should be high enough to prevent fog, but
the stratus would be the result instead.

Wednesday, the surface high will slide across IL, so winds over
southern WI will actually be light and generally out of the
west. If clouds stall over the IL/WI border along the weakening
front Wed morning, this will slow down our cooling tonight but
also the warming on Wednesday. However, low pressure
approaching from the Northern Plains will bring us right back
into a warming pattern by Wed afternoon. With sunshine and
increasing southerly winds, we should be able to get back into
at least the mid 30s, but given how this afternoon over-
performed, I would not be surprised to see 40 along the IL
border. Fog is possible Wednesday night.

Cronce

&&

.LONG TERM...
Issued 338 PM CST Tue Dec 16 2025

Thursday through Tuesday:

Low level moisture will surge into southern WI early Thursday
morning. Rain or drizzle is possible initially (30 to 50%
chance), and then deeper moisture will arrive shortly after
12Z/6AM as the surface low of this occluding system tracks into
northeast MN. The initial surface trough/cold front will slide
through southern WI during the daylight hours, and the secondary
cold front (925-850mb cold front) will cross during the late
afternoon/evening hours. This secondary front will feature gusty
west to northwest winds and a sudden drop in temperatures. Thu
nt lows will drop into the single digits to lower teens, with
min apparent temps in the negative single digits.

A high pressure ridge will return Friday afternoon with lighter
winds and highs in the lower to mid 20s. The next clipper will
cross Ontario near Lake Superior Saturday. Southern WI will be
above freezing in most of southern WI during the day, with the
precip chances mainly over northern WI. One more weaker clipper
will take the same track Sunday evening and should not impact
us.

Monday afternoon and evening could bring a wintry mix to
southern WI with a period of warm air advection as the next
clipper approaches. This could lay out a stalled frontal
boundary over southern WI on Tuesday, so a period of light rain
or at least low clouds is possible.

Cronce

&&

.AVIATION...
Issued 915 PM CST Tue Dec 16 2025

VFR flight categories prevail through the period at most
terminals. Gusty winds will continue through the overnight
period as a cold front crosses southern Wisconsin. The passing
boundary will result in a northwest wind shift at all terminals
by the predawn hours. LLWS potential will continue along/behind
the departing front into early Wednesday morning. Frontal
passage will also be accompanied by FEW-SCT clouds near FL020.
Don't currently expect clouds to be thick enough for categorical
reductions, though trends will need to be monitored through
daybreak, particularly in east-central Wisconsin. Should low
clouds trend thicker, MVFR mentions may become necessary. Winds
will taper late Wednesday morning as high pressure moves into
the region, ending LLWS potential at all terminals. An upper
disturbance will move into the Upper Mississippi Valley
Wednesday night, bringing precip chances to all of southern
Wisconsin. Will need to account for precip potential in
subsequent updates at all aerodromes.

Quigley

&&

.MARINE...
Issued 338 PM CST Tue Dec 16 2025

High pressure will linger across the Southeast U.S. through
Wednesday. Meanwhile, low pressure currently over southwestern
Ontario will lift into western Quebec tonight, leading to
continued gales across the northern two-thirds of the open
waters through early Wednesday morning. A Gale Warning is in
effect. Winds will veer westerly then northwesterly and diminish
into early Wednesday morning behind a cold front. Light winds
then are expected through Wednesday afternoon. The Small Craft
Advisory is in effect through late tonight.

Low pressure then tracks eastward along the Canadian border
Wednesday night into Thursday, bringing southerly gales once
again late Wednesday night into Thursday morning. A brief period
of lighter winds is expected Thursday morning into Thursday
afternoon as low pressure crosses the Upper Peninsula of
Michigan. Winds turn westerly, then northwesterly Thursday
evening, with gales returning to the southern half of the open
waters early Thursday evening. Northwesterly gales will return
to the northern half late Thursday night. Gale Watches are in
effect for each area for these time frames. Winds will diminish
below gale force Friday morning and become light and variable.

Friday night, another low pressure system swings through southern
Canada, bringing gusty south-southwest winds once again. Gales are
possible, but confidence is lower with timing and intensity at
this time.

Cronce/MH

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Gale Warning...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ669-LMZ671-LMZ673-LMZ868-LMZ870-LMZ872-LMZ874
     until 3 AM Wednesday.

     Gale Watch...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565...11 PM
     Wednesday to 10 AM Thursday.

     Gale Watch...LMZ080-LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ777-
     LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...11 PM
     Wednesday to 9 AM Friday.

     Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 6 AM
     Wednesday.

&&

Visit us at weather.gov/milwaukee

Follow us on Facebook, X, and YouTube at:
www.facebook.com/NWSMilwaukee
www.x.com/NWSMilwaukee
www.youtube.com/NWSMilwaukee

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
902 PM CST Tue Dec 16 2025

WIZ046-047-051-052-056>060-062>072-180315-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
902 PM CST Tue Dec 16 2025

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Rain developing late Wednesday night into Thursday. Temperatures
fall well below freezing Thursday evening through Thursday night,
freezing any remaining wet surfaces. Chances for light snow late
Thursday afternoon and evening as temperatures fall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ643>646-180315-
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-
902 PM CST Tue Dec 16 2025

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Tonight

A Small Craft Advisory remains in effect for gusty southwest
winds and high waves.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Gusty winds and high waves return Wednesday night and continue
through Friday morning. Gales are possible at times late Wednesday
night through Thursday night.

Additional gusty winds and high waves are expected Friday night
into Saturday morning.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180315-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
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-
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 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 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-
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-
902 PM CST Tue Dec 16 2025

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Tonight

A Gale Warning is in effect for the southern two-thirds of Lake
Michigan tonight, ending at 3 AM CST.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

A Gale Watch is in effect Wednesday night through Thursday morning
for the northern half of the open waters.

A Gale Watch is in effect Wednesday night through Friday morning
for the southern half of the open waters.

Another period of northwesterly gales is expected late Thursday
night through Friday morning for the northern half of the open
waters.

Additional southerly gales are possible Friday night, but
confidence is lower in intensity and timing for this period.

www.weather.gov/mkx