Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
238 PM EST Tue Dec 2 2025
LHZ345>349-030530-
/O.CON.KAPX.SC.Y.0118.251203T0300Z-251204T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
238 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 7 PM EST WEDNESDAY...
* WHAT...Highest gusts up to 30 kts from the southwest and
highest waves around 7 feet expected.
* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
including Mackinac Island, St Ignace to False Detour Channel,
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI
Including Thunder Bay National Marine Sanctuary and Sturgeon
Pt to Alabaster MI.
* WHEN...From 10 PM this evening to 7 PM EST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
238 PM EST Tue Dec 2 2025
LMZ323-341-342-344>346-030530-
/O.CON.KAPX.SC.Y.0118.251203T0000Z-251204T0000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
238 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 7 PM EST WEDNESDAY...
* WHAT...Highest gusts up to 30 kts from the west and highest
waves around 8 feet expected.
* WHERE...Portions of Lake Michigan.
* WHEN...From 7 PM this evening to 7 PM EST Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
238 PM EST Tue Dec 2 2025
LSZ321-030530-
/O.CON.KAPX.SC.Y.0118.251203T0000Z-251204T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
238 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 7 PM EST WEDNESDAY...
* WHAT...Highest gusts up to 30 kts from the west and highest
waves around 9 feet expected.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI.
* WHEN...From 7 PM this evening to 7 PM EST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
420 PM CST Tue Dec 2 2025
LMZ521-522-030630-
/O.CON.KGRB.SC.Y.0092.251203T0000Z-251204T0900Z/
Green Bay south of line from Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
420 PM CST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
* WHAT...West winds 15 to 20 kts with gusts up to 25 kts and waves
2 to 4 ft expected.
* WHERE...Central and Southern Bay of Green Bay.
* WHEN...Until 3 AM CST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
420 PM CST Tue Dec 2 2025
LMZ541>543-030630-
/O.CON.KGRB.SC.Y.0092.251203T0000Z-251204T0900Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
420 PM CST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
* WHAT...West winds 15 to 20 kts with gusts up to 25 kts and waves
2 to 5 ft expected.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sheboygan.
* WHEN...Until 3 AM CST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
351 PM EST Tue Dec 2 2025
LMZ844>849-030500-
/O.CON.KGRR.SC.Y.0105.251203T0000Z-251205T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
351 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 7 PM EST THURSDAY...
* WHAT...Southwest wind increasing to 20 to 30 knots tonight,
veering to northwest Wednesday afternoon. Waves building to 7
to 11 feet tonight, and to 8 to 13 feet Wednesday.
* WHERE...St Joseph to Manistee.
* WHEN...From 7 PM this evening to 7 PM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
341 PM EST Tue Dec 2 2025
LHZ421-422-441-030930-
/O.CON.KDTX.SC.Y.0091.251203T0200Z-251204T2100Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-
341 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 4 PM EST THURSDAY...
* WHAT...Expect sustained winds up to 28 knots from the west
with gusts up to 31 knots. The largest significant waves will
be 5 feet with a potential maximum wave height of 7 feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay, Inner Saginaw Bay SW of Point Au Gres to
Bay Port MI and Port Austin to Harbor Beach MI.
* WHEN...The maximum winds are expected around 5 AM EST Thursday
with the largest waves expected around 9 AM EST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
215 PM CST Tue Dec 2 2025
LMZ643>646-030415-
/O.EXT.KMKX.SC.Y.0105.251203T0300Z-251204T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
215 PM CST Tue Dec 2 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO
6 AM CST THURSDAY...
* WHAT...Southwest winds 15 to 25 kt this evening into Wednesday
morning, becoming northwest Wednesday afternoon and night. Waves
3 to 5 feet near the open waters.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...From 9 PM this evening to 6 AM CST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Wood
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
253 PM EST Tue Dec 2 2025
LMZ221-248-250-030800-
/O.EXT.KMQT.SC.Y.0191.251202T2100Z-251204T1200Z/
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-
253 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST THURSDAY...
* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
2 to 5 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...Until 7 AM EST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
253 PM EST Tue Dec 2 2025
LSZ245>251-030800-
/O.EXT.KMQT.SC.Y.0191.251203T0000Z-251203T1200Z/
/O.NEW.KMQT.GL.A.0033.251203T1200Z-251204T1200Z/
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
253 PM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 PM THIS EVENING TO
7 AM EST WEDNESDAY...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY
MORNING...
* WHAT...For the Small Craft Advisory, southwest winds 10 to 20
kt with gusts up to 25 kt and waves 1 to 3 ft expected. For
the Gale Watch, northwest winds 20 to 30 kt with gusts up to
40 kt and waves 7 to 10 ft possible.
* WHERE...Portions of Central and Eastern Lake Superior.
* WHEN...For the Small Craft Advisory, from 7 PM this evening to
7 AM EST Wednesday. For the Gale Watch, from Wednesday morning
through Thursday morning.
* IMPACTS...Strong winds can cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.
&&
$$
