Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ241-242-012100-
/O.CON.KMQT.SC.Y.0189.000000T0000Z-251201T2100Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
411 AM EST Mon Dec 1 2025 /311 AM CST Mon Dec 1 2025/
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST /3 PM
CST/ THIS AFTERNOON...
* WHAT...Southwest winds 15 to 20 kt with gusts up to 30 kt and
waves 3 to 6 ft occurring.
* WHERE...Black River to Ontonagon MI and Ontonagon to Upper
Entrance of Portage Canal MI.
* WHEN...Until 4 PM EST /3 PM CST/ 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ243-244-012115-
/O.EXT.KMQT.SC.Y.0189.000000T0000Z-251202T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
411 AM EST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST TUESDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and
waves 5 to 8 ft occurring.
* WHERE...Upper Entrance of Portage Canal to Eagle River MI and
Eagle River to Manitou Island MI.
* WHEN...Until 7 AM EST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ247-012115-
/O.EXT.KMQT.SC.Y.0190.251201T1200Z-251202T0600Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
411 AM EST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM EST TUESDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
waves 1 to 3 ft expected.
* WHERE...Lower Entrance of Portage Canal To Huron Islands MI
Including Keweenaw and Huron Bays.
* WHEN...Until 1 AM EST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ245-246-012115-
/O.EXT.KMQT.SC.Y.0190.251201T1100Z-251202T0600Z/
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
411 AM EST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM EST TUESDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
waves 1 to 4 ft expected.
* WHERE...Manitou Island to Point Isabelle MI and Point Isabelle
to Lower Entrance of Portage Canal MI.
* WHEN...Until 1 AM EST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ250-012115-
/O.EXT.KMQT.SC.Y.0189.000000T0000Z-251202T0000Z/
Munising to Grand Marais MI-
411 AM EST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
waves 3 to 6 ft occurring.
* WHERE...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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
411 AM EST Mon Dec 1 2025
LSZ251-012115-
/O.EXT.KMQT.SC.Y.0189.000000T0000Z-251202T0000Z/
Grand Marais to Whitefish Point MI-
411 AM EST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
waves 3 to 6 ft occurring.
* WHERE...Grand Marais to Whitefish Point MI.
* WHEN...Until 7 PM EST this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
325 AM CST Mon Dec 1 2025
LSZ146>148-150-012130-
/O.EXT.KDLH.SC.Y.0131.251201T1100Z-251202T0300Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
325 AM CST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS
EVENING...
* WHAT...Southwest to west winds 15 to 25 kt with gusts up to 30
kt and waves 1 to 4 ft expected.
* WHERE...Port Wing to Sand Island WI, Sand Island to Bayfield
WI, Oak Point to Saxon Harbor WI and Outer Apostle Islands
Beyond 5 NM from Mainland.
* WHEN...Until 9 PM CST this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
325 AM CST Mon Dec 1 2025
LSZ140>143-012130-
/O.EXT.KDLH.SC.Y.0131.251201T1100Z-251202T0300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
325 AM CST Mon Dec 1 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS
EVENING...
* WHAT...West to southwest winds 10 to 20 kt with gusts up to 25
kt and waves 1 to 4 ft expected.
* WHERE...Grand Portage to Grand Marais MN, Grand Marais to
Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN
and Silver Bay Harbor to Two Harbors MN.
* WHEN...Until 9 PM CST this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.
&&
$$
