Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
258 AM EST Wed Dec 3 2025
LHZ345>349-032030-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251204T1800Z/
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-
258 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...
* WHAT...Highest gusts up to 30 kts from the west and highest
waves around 9 feet.
* 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...Until 1 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
258 AM EST Wed Dec 3 2025
LMZ323-341-342-344>346-032030-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251204T1800Z/
/O.NEW.KAPX.GL.A.0018.251205T0300Z-251205T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
258 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...
* WHAT...For the Small Craft Advisory, Highest gusts up to 30 kts
from the northwest and highest waves around 9 feet. For the
Gale Watch, Highest gusts up to 40 kts from the southwest and
highest waves around 12 feet possible.
* WHERE...Portions of Lake Michigan.
* WHEN...For the Small Craft Advisory, until 1 PM EST Thursday.
For the Gale Watch, from Thursday evening through Friday
morning.
* IMPACTS...Strong winds can cause hazardous highest waves which
could capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and highest
waves.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
258 AM EST Wed Dec 3 2025
LSZ321-322-032030-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251204T1800Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
258 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...
* WHAT...Highest gusts up to 30 kts from the northwest and
highest waves around 10 feet.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI and St. Marys River Point Iroquois to E.
Potagannissing Bay.
* WHEN...Until 1 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
306 AM CST Wed Dec 3 2025
LMZ521-031715-
/O.CON.KGRB.SC.Y.0092.000000T0000Z-251204T0900Z/
/O.NEW.KGRB.GL.A.0006.251205T0300Z-251205T1200Z/
Green Bay south of line from Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
306 AM CST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...
* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
kt and waves 1 to 4 ft. For the Gale Watch, southwest winds 20
to 25 kt with gusts up to 35 kt and waves 5 to 8 ft possible.
* WHERE...Central Bay of Green Bay.
* WHEN...For the Small Craft Advisory, until 3 AM CST Thursday.
For the Gale Watch, from Thursday evening through late
Thursday night.
* IMPACTS...Strong winds can cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
306 AM CST Wed Dec 3 2025
LMZ522-031715-
/O.CON.KGRB.SC.Y.0092.000000T0000Z-251204T0900Z/
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
306 AM CST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
* WHAT...Northwest winds 15 to 25 kt and waves 1 to 3 ft.
* WHERE...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.
&&
$$
Kurimski
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
306 AM CST Wed Dec 3 2025
LMZ541-031715-
/O.CON.KGRB.SC.Y.0092.000000T0000Z-251204T0900Z/
/O.NEW.KGRB.GL.A.0006.251205T0300Z-251205T1200Z/
Rock Island Passage to Sturgeon Bay WI-
306 AM CST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...
* WHAT...For the Small Craft Advisory, northwest winds 15 to 20
kt with gusts up to 25 kt and waves 2 to 5 ft. For the Gale
Watch, southwest winds 20 to 25 kt with gusts up to 35 kt and
waves 4 to 7 ft possible.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sturgeon Bay.
* WHEN...For the Small Craft Advisory, until 3 AM CST Thursday.
For the Gale Watch, from Thursday evening through late
Thursday night.
* IMPACTS...Strong winds can cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
306 AM CST Wed Dec 3 2025
LMZ542-543-031715-
/O.CON.KGRB.SC.Y.0092.000000T0000Z-251204T0900Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
306 AM CST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...
* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and
waves 1 to 4 ft.
* WHERE...Lake Michigan nearshore waters from Sturgeon Bay 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
401 AM EST Wed Dec 3 2025
LHZ421-422-441-032115-
/O.CON.KDTX.SC.Y.0091.000000T0000Z-251204T2100Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-
401 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
THURSDAY...
* WHAT...Expect sustained winds up to 27 knots from the west
with gusts up to 31 knots. The largest significant waves will
be 6 feet with a potential maximum wave height of 8 feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay, Inner Saginaw Bay SW of Point Au Gres to
Bay Port MI and Port Austin to Harbor Beach MI.
* WHEN...The maximum winds are expected around 7 AM EST Thursday
with the largest waves expected around 9 AM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
401 AM EST Wed Dec 3 2025
LHZ442-443-032115-
/O.EXB.KDTX.SC.Y.0091.251204T0300Z-251204T2100Z/
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
401 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM
EST THURSDAY...
* WHAT...Expect sustained winds up to 23 knots from the northwest
with gusts up to 30 knots. The largest significant waves will
be 4 feet with a potential maximum wave height of 5 feet.
* WHERE...Harbor Beach to Port Sanilac MI and Port Sanilac to
Port Huron MI.
* WHEN...The maximum winds are expected around 6 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
329 AM EST Wed Dec 3 2025
LMZ844>849-031630-
/O.CON.KGRR.SC.Y.0105.000000T0000Z-251205T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
329 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
THURSDAY...
* WHAT...West winds 15 to 25 knots with gusts up to 30 knots and
waves 6 to 9 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until 7 PM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
323 AM EST Wed Dec 3 2025
LMZ221-248-250-032030-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251204T1200Z/
/O.NEW.KMQT.GL.A.0034.251205T0300Z-251205T1200Z/
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-
323 AM EST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...
* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
kt with gusts up to 30 kt and waves 2 to 5 ft occurring. For
the Gale Watch, southwest winds 20 to 30 kt with gusts up to
35 kt and waves 5 to 8 ft possible.
* 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...For the Small Craft Advisory, until 7 AM EST Thursday.
For the Gale Watch, from Thursday evening through Friday
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.
&&
$$
GS
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
149 AM CST Wed Dec 3 2025
LMZ643>646-032000-
/O.CON.KMKX.SC.Y.0105.000000T0000Z-251204T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
149 AM CST Wed Dec 3 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
THURSDAY...
* WHAT...West winds 15 to 20 kt with gusts up to 25 kt.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...Until 6 AM CST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
