Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
320 AM CST Thu Nov 6 2025
LMZ521-522-061730-
/O.NEW.KGRB.SC.Y.0084.251106T2100Z-251108T0000Z/
Green Bay south of line from Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
320 AM CST Thu Nov 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 PM CST FRIDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt,
shifting to the northwest 10 to 20 kt with gusts up to 25 kt on
Friday. Waves building to 3 to 6 ft tonight, subsiding to 2 to
4 feet on Friday.
* WHERE...Central and Southern Bay of Green Bay.
* WHEN...From 3 PM this afternoon to 6 PM CST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
320 AM CST Thu Nov 6 2025
LMZ541>543-061730-
/O.NEW.KGRB.SC.Y.0084.251106T2100Z-251108T0000Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
320 AM CST Thu Nov 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 PM CST FRIDAY...
* WHAT...Southwest winds 15 to 25 kt with a few gale force gusts
up to 35 kt through tonight, shifting to the west at 15 to 25 kt
on Friday. Greatest risk for gale gusts will be tonight toward
Sheboygan. Waves building to 6 to 9 ft tonight, then subsiding
to 1 to 3 feet by late Friday.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sheboygan.
* WHEN...From 3 PM this afternoon to 6 PM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
JLA
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
418 AM EST Thu Nov 6 2025
LMZ844>849-061730-
/O.CON.KGRR.SC.Y.0094.000000T0000Z-251106T1300Z/
/O.UPG.KGRR.GL.A.0012.251107T0200Z-251107T1200Z/
/O.NEW.KGRR.GL.W.0022.251107T0300Z-251107T1500Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
418 AM EST Thu Nov 6 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...
...GALE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST
FRIDAY...
* WHAT...For the Small Craft Advisory early this morning, waves
will gradually subside to below 4 feet by 800 am. For the Gale
Warning tonight into Friday, southwest gales to 40 knots
developing and waves building to 6 to 10 feet.
* WHERE...St Joseph to Manistee.
* WHEN...For the Small Craft Advisory, until 8 AM EST this
morning. For the Gale Warning, from 10 PM this evening to 10
AM EST Friday.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...The Small Craft Advisory conditions will
abate this morning as waves fall below 4 feet. A respite is
expected today with lighter winds and lower wave action as a
ridge of high pressure moves through. Gale conditions develop
quickly tonight after dark persisting into Friday morning.
Southwest gales to 40 knots and waves pushing to 10 feet are
expected.
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 hazardous conditions.
&&
$$
DUKE
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 AM CST Thu Nov 6 2025
LMZ643>646-061700-
/O.NEW.KMKX.SC.Y.0096.251106T2100Z-251108T0000Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
246 AM CST Thu Nov 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 PM CST FRIDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
waves 4 to 6 ft expected.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...From 3 PM this afternoon to 6 PM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...A few gales in the nearshore zones will be
possible but the timeframe will be limited and gusts overall
would be expected to be borderline.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
316 AM EST Thu Nov 6 2025
LMZ221-248-250-062030-
/O.NEW.KMQT.SC.Y.0173.251106T2100Z-251108T0000Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
316 AM EST Thu Nov 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 PM EST FRIDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and
waves 5 to 8 ft expected.
* WHERE...Green Bay North of line from Cedar River MI to Rock
Island Passage, Seul Choix Point to Point Detour MI and 5NM
East of a line from Fairport MI to Rock Island Passage.
* WHEN...From 4 PM this afternoon to 7 PM EST 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.
&&
$$
