Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
902 PM EST Wed Dec 10 2025
LSZ246-247-111200-
/O.CON.KMQT.SC.Y.0197.000000T0000Z-251211T1200Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
902 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and
waves up to 3 ft occurring.
* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI
and Lower Entrance of Portage Canal To Huron Islands MI
Including Keweenaw and Huron Bays.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
902 PM EST Wed Dec 10 2025
LSZ249-250-111415-
/O.CON.KMQT.GL.W.0059.000000T0000Z-251211T0300Z/
/O.CON.KMQT.SC.Y.0198.251211T0300Z-251212T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
902 PM EST Wed Dec 10 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
THURSDAY...
* WHAT...For the Gale Warning, northwest winds around 25 kt with
gusts up to 35 kt and waves 8 to 13 ft occurring. For the
Small Craft Advisory, northwest winds 15 to 25 kt with gusts
up to 30 kt and waves 7 to 12 ft expected.
* WHERE...Marquette to Munising MI and Munising to Grand Marais
MI.
* WHEN...For the Gale Warning, until 10 PM EST this evening. For
the Small Craft Advisory, until 7 PM EST Thursday.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
902 PM EST Wed Dec 10 2025
LSZ242-243-111200-
/O.CON.KMQT.SC.Y.0197.000000T0000Z-251211T1200Z/
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
902 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and
waves 3 to 6 ft occurring.
* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and
Upper Entrance of Portage Canal to Eagle River MI.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
902 PM EST Wed Dec 10 2025
LSZ244-245-248-111415-
/O.EXT.KMQT.SC.Y.0197.000000T0000Z-251211T1800Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-Huron Islands to Marquette MI-
902 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST THURSDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 5 to 8 ft occurring.
* WHERE...Eagle River to Manitou Island MI, Manitou Island to
Point Isabelle MI and Huron Islands to Marquette MI.
* WHEN...Until 1 PM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
902 PM EST Wed Dec 10 2025
LSZ251-111415-
/O.CON.KMQT.SC.Y.0197.000000T0000Z-251212T0000Z/
Grand Marais to Whitefish Point MI-
902 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
THURSDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 6 to 11 ft occurring.
* WHERE...Grand Marais to Whitefish Point MI.
* 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.
&&
$$
GS
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
257 PM EST Wed Dec 10 2025
LHZ345>349-110400-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
257 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
* WHAT...Highest gusts up to 30 kts from the northwest and
highest waves around 8 feet.
* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
including Mackinac Island, St Ignace to False Detour Channel,
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI
Including Thunder Bay National Marine Sanctuary and Sturgeon
Pt to Alabaster MI.
* WHEN...Until 7 AM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
257 PM EST Wed Dec 10 2025
LMZ323-341-342-344>346-110400-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T1200Z/
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-
257 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
* WHAT...Highest gusts up to 30 kts from the northwest and
highest waves around 9 feet.
* WHERE...Portions of Lake Michigan.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
257 PM EST Wed Dec 10 2025
LSZ321-110400-
/O.CON.KAPX.SC.Y.0122.000000T0000Z-251211T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
257 PM EST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...
* WHAT...Highest gusts up to 30 kts from the north and highest
waves around 9 feet.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI.
* WHEN...Until 7 AM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
114 PM CST Wed Dec 10 2025
LSZ140-141-110700-
/O.CON.KDLH.SC.Y.0136.000000T0000Z-251211T0700Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
114 PM CST Wed Dec 10 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CST
THURSDAY...
* WHAT...Northwest winds 5 to 15 kt with gusts up to 30 kt and
waves 1 to 2 ft.
* WHERE...Grand Portage to Grand Marais MN and Grand Marais to
Taconite Harbor MN.
* WHEN...Until 1 AM CST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
