Alert archive / Wisconsin / Gale Warnings in 2025

Gale Warning 2, NWS Milwaukee, WI

January 21, 2025

NWS Milwaukee, WI issued this gale warning at Jan 21, 2025, 9:35 AM CST. It took effect at Jan 22, 2025, 4:00 AM CST. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 21, 2025, 9:35 AM CST (15:35 UTC)
In effect from
Jan 22, 2025, 4:00 AM CST
Expired
Jan 22, 2025, 1:00 PM CST
In force
9 hr
Issued by
NWS Milwaukee, WI

The text

As transmitted.

837 
WHUS73 KMKX 211535
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
935 AM CST Tue Jan 21 2025

LMZ080-669-671-673-675-777-779-870-872-874-876-878-212345-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250122T0000Z/
/O.UPG.KMKX.GL.A.0002.250122T0900Z-250122T1900Z/
/O.NEW.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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 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-
935 AM CST Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 AM TO 1 PM CST WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  25 to 30 kt with gusts up to 35 kt and waves 6 to 11 ft 
  expected.

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

* WHEN...For the Heavy Freezing Spray Warning, until 6 PM CST 
  this evening. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ567-868-212345-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250122T0000Z/
/O.NEW.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
935 AM CST Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 AM TO 1 PM CST WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  25 to 30 kt with gusts up to 35 kt and waves 8 to 12 ft 
  expected.

* WHERE...Lake Michigan from Two Rivers to Sheboygan WI 5NM 
  offshore to Mid Lake and Lake Michigan from Pentwater to 
  Manistee MI 5NM offshore to Mid Lake.

* WHEN...For the Heavy Freezing Spray Warning, until 6 PM CST 
  this evening. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ261-362-364-366-563-565-212345-
/O.NEW.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
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-
935 AM CST Tue Jan 21 2025

...GALE WARNING IN EFFECT FROM 4 AM TO 1 PM CST WEDNESDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 6 to 11 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 4 AM to 1 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.

&&

$$

LMZ643>646-212345-
/O.EXT.KMKX.SC.Y.0007.250122T0400Z-250123T0000Z/
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-
935 AM CST Tue Jan 21 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO
6 PM CST WEDNESDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and 
  waves 4 to 6 ft expected.

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

* WHEN...From 10 PM this evening to 6 PM CST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
5 follow-up statements
566 
WHUS73 KMKX 212039
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
239 PM CST Tue Jan 21 2025

LMZ261-362-364-366-563-565-220445-
/O.NEW.KMKX.UP.W.0002.250122T0300Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
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-
239 PM CST Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM CST WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM CST
WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater expected, and may 
  rapidly accumulate on vessels. For the Gale Warning, southwest 
  winds 20 to 30 kt with gusts up to 35 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...For the Heavy Freezing Spray Warning, from 9 PM this 
  evening to 6 PM CST Wednesday. For the Gale Warning, from 4 AM 
  to 1 PM CST Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-220445-
/O.EXT.KMKX.UP.W.0001.000000T0000Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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-
239 PM CST Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 6 PM CST
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM CST
WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  25 to 30 kt with gusts up to 35 kt and waves 7 to 12 ft 
  expected.

* WHERE...Southern Open Waters of Lake Michigan, Lake Michigan 
  from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake, and 
  Lake Michigan from Pentwater to Manistee MI 5NM offshore to 
  Mid Lake.

* WHEN...For the Heavy Freezing Spray Warning, until 6 PM CST 
  Wednesday. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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>646-220445-
/O.CON.KMKX.SC.Y.0007.250122T0400Z-250123T0000Z/
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-
239 PM CST Tue Jan 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 6 PM CST WEDNESDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 6 ft expected.

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

* WHEN...From 10 PM this evening to 6 PM CST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
716 
WHUS73 KMKX 220304
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
904 PM CST Tue Jan 21 2025

LMZ643>646-221115-
/O.CON.KMKX.SC.Y.0007.250122T0400Z-250123T0000Z/
/O.EXB.KMKX.UP.W.0001.250122T0900Z-250122T1800Z/
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 Tue Jan 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 3 AM TO NOON CST
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 25 
  kt with gusts up to 30 kt and waves 4 to 6 ft expected. For 
  the Heavy Freezing Spray Warning, heavy freezing spray at a 
  rate of 2 cm per hour or greater expected, and may rapidly 
  accumulate on vessels.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST Wednesday. 
  For the Heavy Freezing Spray Warning, from 3 AM to noon CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...A few gale force gusts are possible
  Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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

&&

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-221115-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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 Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM CST
WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  25 to 30 kt with gusts up to 35 kt and waves 7 to 12 ft 
  expected.

* WHERE...Southern Open Waters of Lake Michigan, Lake Michigan 
  from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake, and 
  Lake Michigan from Pentwater to Manistee MI 5NM offshore to 
  Mid Lake.

* WHEN...For the Heavy Freezing Spray Warning, until 6 PM CST 
  Wednesday. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ261-362-364-366-563-565-221115-
/O.CON.KMKX.UP.W.0002.000000T0000Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
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-
904 PM CST Tue Jan 21 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM CST
WEDNESDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  20 to 30 kt with gusts up to 35 kt and waves 8 to 13 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...For the Heavy Freezing Spray Warning, until 6 PM CST 
  Wednesday. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is
  hazardous. Freezing spray may render mechanical and electronic
  components inoperative. Rapid ice accretion on decks and
  superstructures may result in a catastrophic loss of stability.
  Strong winds will cause hazardous waves which could capsize or
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$
948 
WHUS73 KMKX 220916
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
316 AM CST Wed Jan 22 2025

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-221730-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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-
316 AM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM CST THIS AFTERNOON...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  25 to 30 kt with gusts up to 35 kt and waves 7 to 12 ft 
  expected.

* WHERE...Southern Open Waters of Lake Michigan, Lake Michigan 
  from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake, and 
  Lake Michigan from Pentwater to Manistee MI 5NM offshore to 
  Mid Lake.

* WHEN...For the Heavy Freezing Spray Warning, until 6 PM CST 
  Wednesday. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ261-362-364-366-563-565-221730-
/O.CON.KMKX.UP.W.0002.000000T0000Z-250123T0000Z/
/O.CON.KMKX.GL.W.0002.250122T1000Z-250122T1900Z/
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-
316 AM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM CST THIS AFTERNOON...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Gale Warning, southwest winds 
  20 to 30 kt with gusts up to 35 kt and waves 8 to 13 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...For the Heavy Freezing Spray Warning, until 6 PM CST 
  Wednesday. For the Gale Warning, from 4 AM to 1 PM CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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>646-221730-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250122T1800Z/
/O.CON.KMKX.SC.Y.0007.000000T0000Z-250123T0000Z/
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-
316 AM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL NOON CST
TODAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 25 kt
  with gusts up to 30 kt expected. Waves 3 to 5 ft in ice free 
  areas. For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater expected, and may 
  rapidly accumulate on vessels.

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

* WHEN...For the Small Craft Advisory, until 6 PM CST Wednesday. 
  For the Heavy Freezing Spray Warning, from 3 AM to noon CST 
  Wednesday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Conditions will be hazardous to small craft.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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

&&

$$
888 
WHUS73 KMKX 221458
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
858 AM CST Wed Jan 22 2025

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-222300-
/O.CON.KMKX.GL.W.0002.000000T0000Z-250122T1900Z/
/O.CON.KMKX.UP.W.0001.000000T0000Z-250123T0000Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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-
858 AM CST Wed Jan 22 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM CST THIS AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...

* WHAT...For the Gale Warning, southwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 7 to 12 ft. For the Heavy Freezing 
  Spray Warning, heavy freezing spray at a rate of 2 cm per hour 
  or greater may rapidly accumulate on vessels.

* WHERE...Southern Open Waters of Lake Michigan, Lake Michigan 
  from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake, and 
  Lake Michigan from Pentwater to Manistee MI 5NM offshore to 
  Mid Lake.

* WHEN...For the Gale Warning, until 1 PM CST this afternoon. 
  For the Heavy Freezing Spray Warning, until 6 PM CST this 
  evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LMZ261-362-364-366-563-565-222300-
/O.CON.KMKX.GL.W.0002.000000T0000Z-250122T1900Z/
/O.CON.KMKX.UP.W.0002.000000T0000Z-250123T0000Z/
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-
858 AM CST Wed Jan 22 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM CST THIS AFTERNOON...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...

* WHAT...For the Gale Warning, southwest winds around 25 kt with 
  gusts up to 35 kt and waves 7 to 12 ft. For the Heavy Freezing 
  Spray Warning, heavy freezing spray at a rate of 2 cm per hour 
  or greater may rapidly accumulate on vessels.

* 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...For the Gale Warning, until 1 PM CST this afternoon. 
  For the Heavy Freezing Spray Warning, until 6 PM CST this 
  evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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>646-222300-
/O.CON.KMKX.UP.W.0001.000000T0000Z-250122T1800Z/
/O.CON.KMKX.SC.Y.0007.000000T0000Z-250123T0000Z/
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-
858 AM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL NOON CST
TODAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Small Craft Advisory, southwest 
  winds 15 to 25 kt with gusts up to 30 kt and waves 4 to 6 ft.

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

* WHEN...For the Heavy Freezing Spray Warning, until noon CST 
  today. For the Small Craft Advisory, until 6 PM CST this 
  evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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

&&

$$
680 
WHUS73 KMKX 221901
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
101 PM CST Wed Jan 22 2025

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-230000-
/O.EXP.KMKX.GL.W.0002.000000T0000Z-250122T1900Z/
/O.CON.KMKX.UP.W.0001.000000T0000Z-250123T0000Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of 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-
101 PM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING HAS EXPIRED...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or 
  greater may rapidly accumulate on vessels.

* WHERE...Southern Open Waters of Lake Michigan, Lake Michigan 
  from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake, and 
  Lake Michigan from Pentwater to Manistee MI 5NM offshore to 
  Mid Lake.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of stability.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

&&

$$

LMZ261-362-364-366-563-565-230000-
/O.EXP.KMKX.GL.W.0002.000000T0000Z-250122T1900Z/
/O.CON.KMKX.UP.W.0002.000000T0000Z-250123T0000Z/
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-
101 PM CST Wed Jan 22 2025

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THIS EVENING...
...GALE WARNING HAS EXPIRED...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or 
  greater may rapidly accumulate on vessels.

* 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...Until 6 PM CST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of stability.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

&&

$$

LMZ643>646-230000-
/O.CON.KMKX.SC.Y.0007.000000T0000Z-250123T0000Z/
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-
101 PM CST Wed Jan 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater may rapidly 
  accumulate on vessels. For the Small Craft Advisory, southwest 
  winds 15 to 25 kt with gusts up to 30 kt and waves 4 to 6 ft.

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

* WHEN...Until 6 PM CST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

What forecasters said that day

The local office's own words before this gale warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this gale warning went out at Jan 21, 4:29 AM CST, 5 hours 6 minutes earlier. Its key messages:

  • Extreme Cold Warnings are in effect until noon CST today.
  • Very cold temperatures and wind chills will linger this afternoon into Wednesday morning. Additional Cold Weather Advisories may be needed.
  • Heavy freezing spray potential continues over Lake Michigan through today and possibly into tonight.
  • Confidence is rising for light snow developing Wed AM for all of srn WI. The snow may continue over far srn WI including MKE through the afternoon into the evening. Snow accums will be light but travel may be impacted.
  • Temperatures trend back toward normal mid-week through this weekend.
Area forecast discussion, Jan 21, 4:29 AM CST, 5 hours 6 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
429 AM CST Tue Jan 21 2025

.KEY MESSAGES...

- Extreme Cold Warnings are in effect until noon CST today.

- Very cold temperatures and wind chills will linger this
  afternoon into Wednesday morning. Additional Cold Weather
  Advisories may be needed.

- Heavy freezing spray potential continues over Lake Michigan
  through today and possibly into tonight.

- Confidence is rising for light snow developing Wed AM for all
  of srn WI. The snow may continue over far srn WI including MKE
  through the afternoon into the evening. Snow accums will be
  light but travel may be impacted.

- Temperatures trend back toward normal mid-week through this
  weekend.

&&

.SHORT TERM...
Issued 429 AM CST Tue Jan 21 2025

Today through Wednesday night:

There is one very narrow nw-se band of very light snow hanging
on from Madison to Lake Geneva but the shortwave trough will
pass within the next few hours with any light snow ending.
Otherwise the bitterly cold temps and wind chills are on track
this morning with some -30F wind chills already occurring.
There will be the usual spatial and temporal variability in
wind chills due to the variability in wind speed.

The sfc ridge will pass today with sswly winds and warm
advection beginning late this afternoon. High temps will only
rise to around zero degrees today but with gradual warming from
late evening into Wed as breezy swly winds develop. The wind
chills will slowly moderate this afternoon into tonight but a
Cold Weather Advisory may still be needed with best chances
toward east central WI.

The swly winds are increasing as the arctic high moves across
the Ohio River Valley tnt, while weakening low pressure
approaches Lake Superior from south central Canada. The low will
move across the nrn Great Lakes Wed-Wed nt. The strong low to
mid level warm advection will eventually result in enough layer lift
and moistening for light snow development west to east across
srn WI Wed AM. Mid level dry air may keep the duration of snow
fairly short north of Madison and Milwaukee, but a confluent
flow and hence frontogenesis between two shortwave troughs
could keep the light snow going into the afternoon and evening from
far srn WI enewd into the MKE metro area. 1-2 inches may occur
there with under an inch to the north. Given the cold temps,
these light snow accums would be enough to impact travel through
the day and into the evening. A cold frontal and shortwave
passage will then occur Wed nt with some potential for areas of
light snow to linger through the night.

Gehring

&&

.LONG TERM...
Issued 429 AM CST Tue Jan 21 2025

Thursday through Monday:

Nwly winds and cold advection will continue on Thu with the sfc
ridge passage expected for Fri AM. Thus temps will drop to near
zero degrees by sunrise Fri, but slightly milder toward far ern
WI. Swly winds and weak warm advection will begin Fri afternoon
with highs in the lower 20s forecast.

The jet stream will then become zonal across the ern two thirds
of the country with temps returning to near normal conditions
and mostly dry conditions into the weekend.

Gehring

&&

.AVIATION...
Issued 429 AM CST Tue Jan 21 2025

Scattered flurries and local MVFR Cigs will end over far
srn WI by 13Z today. Otherwise VFR conditions today and
tonight, but light snow developing Wed AM from west to east
across srn WI. Cigs will fall to MVFR with vsbys of 1-3SM with
the snowfall.

Gehring

&&

.MARINE...
Issued 429 AM CST Tue Jan 21 2025

Arctic high pressure around 30.8 inches over the southern Great Plains
will move east across the Ohio River Valley through tonight.
This will maintain breezy west winds across Lake Michigan through
today, and shift to southwest overnight into Wednesday. Brisk
west winds will combine with elevated wave heights and frigid air
temperatures to support heavy freezing spray. Heavy Freezing
Spray Warnings are in effect through this morning in the northern
third, and into this evening for the southern two thirds.

Low pressure around 29.8 inches will across the northern Great
Lakes Wednesday into Wednesday night with a cold front to follow.
The breezy southwest winds late tonight into early Wednesday
afternoon may reach gale force for the south half, hence a Gale
Watch is in effect. The winds will then shift to northwesterly
for Wednesday night and Thursday, but not as windy.

A Small Craft Advisory has been issued from Sheboygan to
Winthrop Harbor from 11 PM CST tonight until 6 PM CST on
Wednesday for breezy southwest winds and building waves.

Gehring

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...Extreme Cold Warning...WIZ046-WIZ047-WIZ051-WIZ052-WIZ056-
     WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065-
     WIZ066-WIZ067-WIZ068-WIZ069-WIZ070-WIZ071-WIZ072 until
     noon Tuesday.

LM...Gale Watch...LMZ080-LMZ669-LMZ671-LMZ673-LMZ675-LMZ777-LMZ779-
     LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...3 AM Wednesday to 1
     PM Wednesday.

     Heavy Freezing Spray Warning...LMZ080-LMZ567-LMZ669-LMZ671-
     LMZ673-LMZ675-LMZ777-LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-
     LMZ876-LMZ878 until 6 PM Tuesday.

     Heavy Freezing Spray Warning...LMZ261-LMZ362-LMZ364-LMZ366-
     LMZ563-LMZ565 until 6 AM Tuesday.

     Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646...11 PM
     Tuesday to 6 PM Wednesday.

&&

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Hazardous weather outlook, Jan 21, 3:52 AM CST, 5 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
352 AM CST Tue Jan 21 2025

WIZ046-047-051-052-056>060-062>072-221000-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
352 AM CST Tue Jan 21 2025

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

.DAY ONE...Today and Tonight

Bitterly cold temperatures and wind chills continue through this
morning, with slight moderation this afternoon and tonight.
Please continue to heed cold weather headlines.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Light snow is expected to develop from west to east Wednesday
morning, then may linger into the evening over far southern
Wisconsin. Light snow accumulation may impact travel for both the
morning and afternoon commute.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed, but snowfall reports are
appreciated.

LMZ643>646-221000-
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-
352 AM CST Tue Jan 21 2025

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

.DAY ONE...Today and Tonight

A Small Craft Advisory begins late this evening for developing
breezy southwest winds.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A Small Craft Advisory remains in effect until 6 PM CST Wednesday
for breezy southwest winds and building waves.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-221000-
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-
352 AM CST Tue Jan 21 2025

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

.DAY ONE...Today and Tonight

A Heavy Freezing Spray Warning continues south of a line from Two
Rivers WI to Manistee MI through this afternoon. There is the
potential for areas of heavy freezing spray to continue tonight.

A Gale Watch goes into effect for the south half of the lake at 3
AM CST as southwest winds increase to potential gales.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A Gale Watch is in effect Wednesday for the south half of Lake
Michigan until 1 PM CST for potential southwest gales.

Localized heavy freezing spray is possible Wednesday morning.

www.weather.gov/mkx

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 3:34 AM CSTGale WatchMKX6 hr
Jan 21, 3:34 AM CSTSmall Craft AdvisoryMKX41 hr
Jan 21, 9:21 AM CSTCold Weather AdvisoryMKXColumbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more15 hr
Jan 21, 2:39 PM CSTHeavy Freezing Spray WarningMKX27 hr

Nearby

Gale Warnings in Wisconsin, 2025Every gale warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.