Alert archive / Wisconsin / Small Craft Advisories in 2021

Small Craft Advisory 84, NWS Milwaukee, WI

October 20, 2021

NWS Milwaukee, WI issued this small craft advisory at Oct 20, 2021, 3:26 AM CDT. It took effect at Oct 21, 2021, 7:00 AM CDT. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Oct 20, 2021, 3:26 AM CDT (08:26 UTC)
In effect from
Oct 21, 2021, 7:00 AM CDT
Expired
Oct 22, 2021, 4:00 AM CDT
In force
21 hr
Issued by
NWS Milwaukee, WI

The text

As transmitted.

729 
WHUS73 KMKX 200826
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
326 AM CDT Wed Oct 20 2021

LMZ643-644-201630-
/O.NEW.KMKX.SC.Y.0084.211021T0900Z-211022T0300Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
326 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 10 PM CDT
THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 7 ft expected.

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

* WHEN...From 4 AM to 10 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-201630-
/O.NEW.KMKX.SC.Y.0084.211021T1200Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
326 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THURSDAY TO 4 AM CDT
FRIDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and 
  waves 5 to 8 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
10 follow-up statements
138 
WHUS73 KMKX 201356
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
856 AM CDT Wed Oct 20 2021

LMZ643-644-202200-
/O.CON.KMKX.SC.Y.0084.211021T0900Z-211022T0300Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
856 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM CDT
THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and 
  waves 5 to 8 ft expected.

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

* WHEN...From 4 AM to 10 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-202200-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
856 AM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THURSDAY TO
4 AM CDT FRIDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and 
  waves 5 to 8 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
599 
WHUS73 KMKX 201950
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
250 PM CDT Wed Oct 20 2021

LMZ643-644-210400-
/O.EXT.KMKX.SC.Y.0084.211021T1200Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
250 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM THURSDAY TO
MIDNIGHT CDT THURSDAY NIGHT...

* WHAT...Northerly winds 10 to 20 kt with gusts up to 30 kt and 
  waves 4 to 7 ft expected.

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

* WHEN...From 7 AM Thursday to midnight CDT Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-210400-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
250 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THURSDAY TO
4 AM CDT FRIDAY...

* WHAT...Northerly winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
DDV
000 
WHUS73 KMKX 210126
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
826 PM CDT Wed Oct 20 2021

LMZ261-362-364-366-563-565-567-868-210930-
/O.NEW.KMKX.GL.W.0021.211021T0900Z-211021T2100Z/
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 Pentwater to Manistee MI 5NM offshore to Mid
Lake-
826 PM CDT Wed Oct 20 2021

...GALE WARNING IN EFFECT FROM 4 AM TO 4 PM CDT THURSDAY...

* WHAT...North to northeast winds 15 to 25 kt with gusts up to 35
  kt and waves building to 6 to 9 ft are expected.

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

* WHEN...From 4 AM to 4 PM CDT Thursday.

* 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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210930-
/O.NEW.KMKX.GL.W.0021.211021T1500Z-211022T0000Z/
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-
826 PM CDT Wed Oct 20 2021

...GALE WARNING IN EFFECT FROM 10 AM TO 7 PM CDT THURSDAY...

* WHAT...North to Northwest winds 15 to 25 kt with gusts up to 35
  kt and waves building to 7 to 10 ft are expected.

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

* WHEN...From 10 AM to 7 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ643-644-210930-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
826 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THURSDAY TO
MIDNIGHT CDT THURSDAY NIGHT...

* WHAT...Northwest to north winds 10 to 20 kt with gusts up to 30
  kt and waves 3 to 6 ft expected.

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

* WHEN...From 7 AM Thursday to midnight CDT Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-210930-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
826 PM CDT Wed Oct 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THURSDAY TO
4 AM CDT FRIDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
MBK
775 
WHUS73 KMKX 210906
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
406 AM CDT Thu Oct 21 2021

LMZ261-362-364-366-563-565-567-868-211715-
/O.CON.KMKX.GL.W.0021.000000T0000Z-211021T2100Z/
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 Pentwater to Manistee MI 5NM offshore to Mid
Lake-
406 AM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

* WHAT...North to northeast winds 15 to 25 kt with gusts up to 
  35 kt and waves building to 6 to 9 ft are expected.

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

* WHEN...From 4 AM to 4 PM CDT Thursday.

* 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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-211715-
/O.CON.KMKX.GL.W.0021.211021T1500Z-211022T0000Z/
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-
406 AM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM
CDT THIS EVENING...

* WHAT...North to Northwest winds 15 to 25 kt with gusts up to 
  35 kt and waves building to 7 to 10 ft are expected.

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

* WHEN...From 10 AM to 7 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ643-644-211715-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
406 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Northwest to north winds 10 to 20 kt with gusts up to 
  30 kt and waves 3 to 6 ft expected.

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

* WHEN...From 7 AM Thursday to midnight CDT Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-211715-
/O.CON.KMKX.SC.Y.0084.211021T1200Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
406 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
375 
WHUS73 KMKX 211413
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
913 AM CDT Thu Oct 21 2021

LMZ261-362-364-366-563-565-567-868-212100-
/O.CON.KMKX.GL.W.0021.000000T0000Z-211021T2100Z/
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 Pentwater to Manistee MI 5NM offshore to Mid
Lake-
913 AM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 35
  to 40 kt and waves building to 6 to 9 ft are expected.

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

* WHEN...From 4 AM to 4 PM CDT Thursday.

* 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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-212215-
/O.CON.KMKX.GL.W.0021.211021T1500Z-211022T0000Z/
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-
913 AM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...North winds 20 to 25 kt with gusts up to 35 to 40kt, and
  waves building to 7 to 10 ft are expected.

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

* WHEN...From 10 AM to 7 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ643-644-212215-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
913 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...North winds 20 to 25 kt with gusts up to 30 kt, and waves
  4 to 8 ft expected.

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

* WHEN...From 7 AM Thursday to midnight CDT Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-212215-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
913 AM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...North winds 20 to 25 kt with gusts up to 30 kt, and 
  waves 4 to 9 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
250 
WHUS73 KMKX 211955
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
255 PM CDT Thu Oct 21 2021

LMZ261-362-364-366-563-565-567-868-212100-
/O.CON.KMKX.GL.W.0021.000000T0000Z-211021T2100Z/
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 Pentwater to Manistee MI 5NM offshore to Mid
Lake-
255 PM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

* WHAT...North winds 20 to 25 kt with gusts up to 35 kt and waves
  of 5 to 9 ft are expected.

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

* WHEN...From 4 AM to 4 PM CDT Thursday.

* 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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-220000-
/O.CON.KMKX.GL.W.0021.000000T0000Z-211022T0000Z/
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-
255 PM CDT Thu Oct 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...North winds 20 to 25 kt with gusts up to 35 to 40 kt, 
  and waves building to 8 to 12 ft are expected.

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

* WHEN...From 10 AM to 7 PM CDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ643-644-220400-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
255 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...North winds 20 to 25 kt with gusts up to 30 kt, and 
  waves 4 to 8 ft expected.

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

* WHEN...From 7 AM Thursday to midnight CDT Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-220400-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
255 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...North winds 20 to 25 kt with gusts up to 30 kt, and 
  waves 4 to 9 ft expected.

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

* WHEN...From 7 AM Thursday to 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
941 
WHUS73 KMKX 212345
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
645 PM CDT Thu Oct 21 2021

LMZ080-669-671-673-675-777-779-870-872-874-876-878-220045-
/O.EXP.KMKX.GL.W.0021.000000T0000Z-211022T0000Z/
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-
645 PM CDT Thu Oct 21 2021

...GALE WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING...

North winds will continue to gust up to 30 knots into the evening
before diminishing. Waves of 6 to 10 feet will slowly diminish
overnight. 

$$

LMZ643-644-220500-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
645 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Waves 3 to 6 ft.

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

* WHEN...Until midnight CDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-220745-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
645 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...Waves 4 to 7 ft.

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

* WHEN...Until 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
MBK
517 
WHUS73 KMKX 220206
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
906 PM CDT Thu Oct 21 2021

LMZ643-644-220500-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
906 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Waves 3 to 6 ft.

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

* WHEN...Until midnight CDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ645-646-220900-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
906 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...Waves 4 to 7 ft.

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

* WHEN...Until 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
Kavinsky
521 
WHUS73 KMKX 220438
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1138 PM CDT Thu Oct 21 2021

LMZ643-644-220545-
/O.EXP.KMKX.SC.Y.0084.000000T0000Z-211022T0500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
1138 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT MIDNIGHT CDT TONIGHT...

Waves will continue to gradually diminish overnight. 

$$

LMZ645-646-220900-
/O.CON.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1138 PM CDT Thu Oct 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY...

* WHAT...Waves 3 to 6 ft.

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

* WHEN...Until 4 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
Kavinsky
860 
WHUS73 KMKX 220834
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
334 AM CDT Fri Oct 22 2021

LMZ645-646-220945-
/O.EXP.KMKX.SC.Y.0084.000000T0000Z-211022T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
334 AM CDT Fri Oct 22 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CDT EARLY THIS
MORNING...

Waves have diminished below Small Craft Advisory criteria and the
the headline will be allowed to expire.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 20, 5:18 PM CDTSpecial Weather StatementMKXWalworth27 min
Oct 20, 5:45 PM CDTSpecial Weather StatementMKXWaukesha15 min
Oct 20, 6:02 PM CDTSpecial Weather StatementMKXMilwaukee13 min
Oct 20, 6:15 PM CDTSpecial Marine WarningMKX60 min
Oct 20, 6:19 PM CDTSpecial Weather StatementMKXMilwaukee26 min

Nearby

Small Craft Advisories in Wisconsin, 2021Every small craft advisory in 2021

Sources

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