Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
302 PM CST Sun Dec 7 2025
LMZ740>742-080515-
/O.CON.KLOT.SC.Y.0109.000000T0000Z-251208T1500Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
302 PM CST Sun Dec 7 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 9 AM CST MONDAY...
* WHAT...Northeast winds to 30 kt and significant waves to 7 ft
occasionally to 9 ft expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...From 8 AM this morning to 9 AM CST Monday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
243 PM CST Sun Dec 7 2025
LMZ541>543-080445-
/O.NEW.KGRB.SC.Y.0094.251209T0000Z-251209T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
243 PM CST Sun Dec 7 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM MONDAY TO 3 PM CST
TUESDAY...
* WHAT...Southwest winds 15 to 25 kts with gusts to around 30 kts
and waves 6 to 10 ft expected.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sheboygan.
* WHEN...From 6 PM Monday to 3 PM CST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Kieckbusch
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
234 PM CST Sun Dec 7 2025
LMZ645-646-080300-
/O.EXT.KMKX.SC.Y.0107.000000T0000Z-251208T0300Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
234 PM CST Sun Dec 7 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS
EVENING...
* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and waves
3 to 5 ft.
* WHERE...Nearshore Waters from North Point Lighthouse to
Winthrop Harbor IL.
* WHEN...Until 9 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.
&&
$$
Gale Watch
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
234 PM CST Sun Dec 7 2025
LMZ261-362-364-366-563-565-567-868-080445-
/O.NEW.KMKX.GL.A.0027.251209T0400Z-251209T1200Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
234 PM CST Sun Dec 7 2025
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH LATE MONDAY
NIGHT...
* WHAT...Southwest winds 20 to 30 kt with gusts up to 35 kt and
waves 9 to 14 ft possible.
* WHERE...Northern Open Waters of Lake Michigan.
* WHEN...From Monday evening through late Monday night.
* IMPACTS...Strong winds can cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
312 PM CST Sun Dec 7 2025
LMZ643>646-082115-
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-
312 PM CST Sun Dec 7 2025
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
A Small Craft Advisory is in effect for the nearshore waters
south of Port Washington into this evening for elevated winds and
waves.
.DAYS TWO THROUGH SEVEN...Monday through Sunday
Conditions hazardous to small craft will develop Monday night and
continue through Wednesday. A few brief periods of gale force
gusts are possible within this time frame.
Winds may reach Small Craft Advisory levels again Thursday night
through Saturday. Again, a few brief periods of gale force gusts
are possible within this time frame.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
312 PM CST Sun Dec 7 2025
WIZ046-047-051-052-056>060-062>072-082115-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
312 PM CST Sun Dec 7 2025
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
A broken line of lake effect snow may wobble onshore tonight
across lakeshore counties. Generally less than 1 inch of snow is
expected.
.DAYS TWO THROUGH SEVEN...Monday through Sunday
Light snow is possible again Monday night, mainly north of the
I-94 corridor. Expecting around an inch or less in these areas.
A wintry mix is expected to develop Tuesday evening, with slick
spots on area roads possible due to continued cold pavement
temperatures. Wintry mix will transition to snow on Wednesday,
with uncertainty remaining in total snowfall amounts.
Additional rounds of snowfall are then possible through the end of
the work week, but confidence in timing is much lower.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
244 PM CST Sun Dec 7 2025
LMZ740>745-082045-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
244 PM CST Sun Dec 7 2025
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Hazardous conditions for small craft.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday through Saturday...
Hazardous conditions for small craft are likely at times.
$$
RC
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