Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 AM EST Thu Dec 11 2025
LHZ345>347-111200-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T1200Z/
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-
331 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
* WHAT...Highest gusts up to 25 kts from the north and highest
waves around 5 feet.
* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
including Mackinac Island, St Ignace to False Detour Channel
and 5NM East of Mackinac Bridge to Presque Isle Light MI
including Bois Blanc Island.
* WHEN...Until 7 AM EST this morning.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 AM EST Thu Dec 11 2025
LHZ348-349-111930-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T2100Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
331 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
* WHAT...Highest gusts up to 25 kts from the northwest and
highest waves around 6 feet.
* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder
Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.
* WHEN...Until 4 PM EST this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 AM EST Thu Dec 11 2025
LMZ323-341-342-344>346-111930-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T2100Z/
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-
331 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
* WHAT...Highest gusts up to 25 kts from the northwest and
highest waves around 6 feet.
* WHERE...Portions of Lake Michigan.
* WHEN...Until 4 PM EST this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 AM EST Thu Dec 11 2025
LSZ321-111800-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T1800Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
331 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
* WHAT...Highest gusts up to 25 kts from the north and highest
waves around 6 feet.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI.
* WHEN...Until 1 PM EST this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
405 AM EST Thu Dec 11 2025
LHZ421-441-442-112130-
/O.CON.KDTX.SC.Y.0094.000000T0000Z-251212T0300Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-
405 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Expect sustained winds up to 25 knots from the northwest
with gusts up to 30 knots. The largest significant waves will
be 8 feet with a potential maximum wave height of 11 feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay, Port Austin to Harbor Beach MI and Harbor
Beach to Port Sanilac MI.
* WHEN...The maximum winds and waves are in progress. and waves
are in progress
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
336 AM EST Thu Dec 11 2025
LSZ244-245-248-111800-
/O.CON.KMQT.SC.Y.0197.000000T0000Z-251211T1800Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-Huron Islands to Marquette MI-
336 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and
waves 4 to 7 ft occurring.
* WHERE...Eagle River to Manitou Island MI, Manitou Island to
Point Isabelle MI and Huron Islands to Marquette MI.
* WHEN...Until 1 PM EST this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
336 AM EST Thu Dec 11 2025
LSZ249-250-112045-
/O.CON.KMQT.SC.Y.0198.000000T0000Z-251212T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
336 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 7 to 10 ft occurring.
* WHERE...Marquette to Munising MI and Munising to Grand Marais
MI.
* WHEN...Until 7 PM EST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
336 AM EST Thu Dec 11 2025
LSZ251-112045-
/O.CON.KMQT.SC.Y.0197.000000T0000Z-251212T0000Z/
Grand Marais to Whitefish Point MI-
336 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and
waves 5 to 8 ft occurring.
* WHERE...Grand Marais to Whitefish Point MI.
* WHEN...Until 7 PM EST this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
327 AM EST Thu Dec 11 2025
LMZ844>849-111630-
/O.CON.KGRR.SC.Y.0109.000000T0000Z-251211T2100Z/
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-
327 AM EST Thu Dec 11 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
* WHAT...Northwest winds 10 to 20 knots and waves 3 to 6 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until 4 PM EST this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
