Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1207 PM CST Thu Dec 4 2025
LSZ121-145>148-050615-
/O.CON.KDLH.SC.Y.0132.000000T0000Z-251205T1600Z/
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-
1207 PM CST Thu Dec 4 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST
FRIDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 40 kt and
waves 3 to 6 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 10 AM CST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...Wind gusts may drop below 20 knots for a
time Thursday morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
316 PM EST Thu Dec 4 2025
LSZ241-050830-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251204T2100Z/
/O.CON.KMQT.GL.W.0058.251204T2100Z-251205T0900Z/
Black River to Ontonagon MI-
316 PM EST Thu Dec 4 2025 /216 PM CST Thu Dec 4 2025/
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST /3 PM
CST/ THIS AFTERNOON...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST /3 AM CST/
FRIDAY...
* WHAT...For the Small Craft Advisory, southwest winds 15 to 20
kt with gusts up to 25 kt and waves 2 to 3 ft occurring. For
the Gale Warning, southwest winds 15 to 25 kt with gusts up to
35 kt and waves 4 to 7 ft expected.
* WHERE...Black River to Ontonagon MI.
* WHEN...For the Small Craft Advisory, until 4 PM EST /3 PM CST/
this afternoon. For the Gale Warning, until 4 AM EST /3 AM
CST/ Friday.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
316 PM EST Thu Dec 4 2025
LSZ242-050830-
/O.CON.KMQT.SC.Y.0191.000000T0000Z-251204T2100Z/
/O.CON.KMQT.GL.W.0058.251204T2100Z-251205T0900Z/
Ontonagon to Upper Entrance of Portage Canal MI-
316 PM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...
* WHAT...For the Small Craft Advisory, southwest winds 15 to 20
kt with gusts up to 25 kt and waves 3 to 4 ft occurring. For
the Gale Warning, southwest winds 15 to 25 kt with gusts up to
35 kt and waves 6 to 9 ft expected.
* WHERE...Ontonagon to Upper Entrance of Portage Canal MI.
* WHEN...For the Small Craft Advisory, until 4 PM EST this
afternoon. For the Gale Warning, until 4 AM EST Friday.
* 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.
&&
$$