Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LSZ245>248-051800-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T1200Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T1800Z/
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-
321 AM EST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 1 PM
EST THIS AFTERNOON...
* WHAT...For the Gale Warning, southwest winds 15 to 25 kt with
gusts up to 35 kt and waves 2 to 5 ft occurring. For the Small
Craft Advisory, southwest winds 10 to 20 kt with gusts up to
25 kt and waves 1 to 4 ft expected.
* WHERE...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
and Huron Islands to Marquette MI.
* WHEN...For the Gale Warning, until 7 AM EST this morning. For
the Small Craft Advisory, from 7 AM this morning to 1 PM EST
this afternoon.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LMZ248-250-052030-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T1200Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T2100Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
321 AM EST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 4 PM
EST THIS AFTERNOON...
* WHAT...For the Gale Warning, southwest winds 20 to 30 kt with
gusts up to 40 kt and waves 7 to 10 ft occurring. For the
Small Craft Advisory, southwest winds 15 to 25 kt with gusts
up to 30 kt and waves 6 to 9 ft expected.
* WHERE...Seul Choix Point to Point Detour MI and 5NM East of a
line from Fairport MI to Rock Island Passage.
* WHEN...For the Gale Warning, until 7 AM EST this morning. For
the Small Craft Advisory, from 7 AM this morning to 4 PM EST
this afternoon.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LSZ250-251-051800-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T1200Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T1800Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
321 AM EST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 1 PM
EST THIS AFTERNOON...
* WHAT...For the Gale Warning, southwest winds 20 to 30 kt with
gusts up to 35 kt and waves 3 to 6 ft occurring. For the Small
Craft Advisory, southwest winds 10 to 20 kt with gusts up to
25 kt and waves 2 to 5 ft expected.
* WHERE...Munising to Grand Marais MI and Grand Marais to
Whitefish Point MI.
* WHEN...For the Gale Warning, until 7 AM EST this morning. For
the Small Craft Advisory, from 7 AM this morning to 1 PM EST
this afternoon.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LSZ243-244-052030-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T1200Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T2100Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
321 AM EST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 4 PM
EST THIS AFTERNOON...
* WHAT...For the Gale Warning, west winds 20 to 25 kt with gusts
up to 35 kt and waves 6 to 11 ft occurring. For the Small
Craft Advisory, west winds 10 to 20 kt with gusts up to 25 kt
and waves 6 to 9 ft expected.
* WHERE...Upper Entrance of Portage Canal to Eagle River MI and
Eagle River to Manitou Island MI.
* WHEN...For the Gale Warning, until 7 AM EST this morning. For
the Small Craft Advisory, from 7 AM this morning to 4 PM EST
this afternoon.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LSZ241-242-051800-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T0900Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T1800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
321 AM EST Fri Dec 5 2025 /221 AM CST Fri Dec 5 2025/
...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST /3 AM CST/ EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST /6 AM CST/ THIS
MORNING TO 1 PM EST /NOON CST/ THIS AFTERNOON...
* WHAT...For the Gale Warning, southwest winds 20 to 25 kt with
gusts up to 35 kt and waves 5 to 8 ft occurring. For the Small
Craft Advisory, southwest winds 10 to 20 kt with gusts up to
25 kt and waves 4 to 7 ft expected.
* WHERE...Black River to Ontonagon MI and Ontonagon to Upper
Entrance of Portage Canal MI.
* WHEN...For the Gale Warning, until 4 AM EST /3 AM CST/ early
this morning. For the Small Craft Advisory, from 7 AM EST /6
AM CST/ this morning to 1 PM EST /noon CST/ this afternoon.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
321 AM EST Fri Dec 5 2025
LMZ221-051700-
/O.CON.KMQT.GL.W.0058.000000T0000Z-251205T1200Z/
/O.NEW.KMQT.SC.Y.0193.251205T1200Z-251205T1700Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
321 AM EST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO NOON
EST TODAY...
* WHAT...For the Gale Warning, southwest winds 20 to 30 kt with
gusts up to 40 kt and waves 5 to 8 ft occurring. For the Small
Craft Advisory, southwest winds 15 to 25 kt with gusts up to
30 kt and waves 3 to 6 ft expected.
* WHERE...Green Bay North of line from Cedar River MI to Rock
Island Passage.
* WHEN...For the Gale Warning, until 7 AM EST this morning. For
the Small Craft Advisory, from 7 AM this morning to noon EST
today.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 AM EST Fri Dec 5 2025
LHZ346>348-051630-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251205T2200Z/
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-
317 AM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON...
* WHAT...Highest gusts up to 30 kts from the southwest and
highest waves around 7 feet.
* WHERE...St Ignace to False Detour Channel, 5NM East of
Mackinac Bridge to Presque Isle Light MI including Bois Blanc
Island and Presque Isle Light to Sturgeon Pt MI Including
Thunder Bay National Marine Sanctuary.
* WHEN...Until 5 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
214 AM CST Fri Dec 5 2025
LMZ521-051615-
/O.CON.KGRB.GL.W.0018.000000T0000Z-251205T1200Z/
/O.EXB.KGRB.SC.Y.0093.251205T1200Z-251205T1700Z/
Green Bay south of line from Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
214 AM CST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO 11 AM CST THIS
MORNING...
* WHAT...For the Gale Warning, southwest winds 20 to 25 kt with
gusts up to 35 kt and waves 4 to 7 ft. For the Small Craft
Advisory, southwest winds 15 to 20 kt with gusts up to 25 kt
and waves 3 to 6 ft expected.
* WHERE...Central Bay of Green Bay.
* WHEN...For the Gale Warning, until 6 AM CST early this
morning. For the Small Craft Advisory, from 6 AM to 11 AM CST
this morning.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
214 AM CST Fri Dec 5 2025
LMZ541-051615-
/O.CON.KGRB.GL.W.0018.000000T0000Z-251205T1200Z/
/O.EXB.KGRB.SC.Y.0093.251205T1200Z-251205T2100Z/
Rock Island Passage to Sturgeon Bay WI-
214 AM CST Fri Dec 5 2025
...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 3 PM
CST THIS AFTERNOON...
* WHAT...For the Gale Warning, southwest winds 20 to 30 kt with
gusts up to 35 kt and waves 5 to 8 ft. For the Small Craft
Advisory, southwest winds 15 to 25 kt and waves 4 to 7 ft
expected.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sturgeon Bay.
* WHEN...For the Gale Warning, until 6 AM CST early this
morning. For the Small Craft Advisory, from 6 AM this morning
to 3 PM CST this afternoon.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1157 PM CST Thu Dec 4 2025
LSZ121-145>148-051200-
/O.EXT.KDLH.SC.Y.0132.000000T0000Z-251205T1200Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
1157 PM CST Thu Dec 4 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM CST FRIDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
waves 2 to 5 ft.
* WHERE...Chequamegon Bay-Bayfield to Oak Point WI, Duluth MN to
Port Wing WI, Port Wing to Sand Island WI, Sand Island to
Bayfield WI and Oak Point to Saxon Harbor WI.
* WHEN...Until 6 AM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
BJH
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1157 PM CST Thu Dec 4 2025
LSZ140-051400-
/O.EXP.KDLH.GL.W.0034.000000T0000Z-251205T0600Z/
/O.EXB.KDLH.SC.Y.0132.251205T0600Z-251205T1400Z/
Grand Portage to Grand Marais MN-
1157 PM CST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CST FRIDAY...
...GALE WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT...
* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
7 to 10 ft expected.
* WHERE...Grand Portage to Grand Marais MN.
* WHEN...Until 8 AM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1157 PM CST Thu Dec 4 2025
LSZ141>144-051200-
/O.EXP.KDLH.GL.W.0034.000000T0000Z-251205T0600Z/
/O.EXB.KDLH.SC.Y.0132.251205T0600Z-251205T1200Z/
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
1157 PM CST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST FRIDAY...
...GALE WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT...
* WHAT...West winds 5 to 15 kt with gusts up to 25 kt and waves
3 to 6 ft expected.
* WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to
Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and
Two Harbors to Duluth MN.
* WHEN...Until 6 AM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1157 PM CST Thu Dec 4 2025
LSZ150-051200-
/O.EXP.KDLH.GL.W.0034.000000T0000Z-251205T0600Z/
/O.EXB.KDLH.SC.Y.0132.251205T0600Z-251205T1200Z/
Outer Apostle Islands Beyond 5 NM from Mainland-
1157 PM CST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST FRIDAY...
...GALE WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT...
* WHAT...Southwest winds 15 to 20 kt with gusts up to 30 kt and
waves 4 to 7 ft expected.
* WHERE...Outer Apostle Islands Beyond 5 NM from Mainland.
* WHEN...Until 6 AM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
