Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
342 PM EST Thu Nov 20 2025
LHZ441-211515-
/O.NEW.KDTX.SC.Y.0086.251122T0000Z-251122T0900Z/
Port Austin to Harbor Beach MI-
342 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM FRIDAY TO 4 AM EST
SATURDAY...
* WHAT...Expect sustained winds up to 16 knots from the
northwest with gusts up to 17 knots. The largest significant
waves will be 4 feet with a potential maximum wave height of 5
feet.
* WHERE...Port Austin to Harbor Beach MI.
* WHEN...The maximum winds are expected around 8 PM EST Friday
with the largest waves expected around 12 AM EST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
329 PM EST Thu Nov 20 2025
LSZ245>248-210830-
/O.CON.KMQT.SC.Y.0182.000000T0000Z-251121T1800Z/
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
329 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST FRIDAY...
* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves
1 to 3 ft occurring.
* WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to
Lower Entrance of Portage Canal MI, Lower Entrance of Portage
Canal To Huron Islands MI Including Keweenaw and Huron Bays
and Huron Islands to Marquette MI.
* WHEN...Until 1 PM EST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
329 PM EST Thu Nov 20 2025
LSZ249-210830-
/O.EXT.KMQT.SC.Y.0183.251121T1200Z-251122T0000Z/
Marquette to Munising MI-
329 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM TO 7 PM EST
FRIDAY...
* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and
waves 4 to 7 ft expected.
* WHERE...Marquette to Munising MI.
* WHEN...From 7 AM to 7 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
329 PM EST Thu Nov 20 2025
LSZ250-251-210830-
/O.EXT.KMQT.SC.Y.0182.251121T0000Z-251122T0600Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
329 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 PM THIS EVENING TO
1 AM EST SATURDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 6 to 9 ft expected.
* WHERE...Munising to Grand Marais MI and Grand Marais to
Whitefish Point MI.
* WHEN...From 7 PM this evening to 1 AM EST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
158 PM EST Thu Nov 20 2025
LHZ345-210300-
/O.EXT.KAPX.SC.Y.0113.000000T0000Z-251121T0600Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
158 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM EST FRIDAY...
* WHAT...Highest gusts up to 25 kts from the southwest and
highest waves around 3 feet.
* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
including Mackinac Island.
* WHEN...Until 1 AM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
158 PM EST Thu Nov 20 2025
LMZ323-341-342-344-345-210300-
/O.CON.KAPX.SC.Y.0113.000000T0000Z-251121T0600Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
158 PM EST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST FRIDAY...
* WHAT...Highest gusts up to 25 kts from the southwest and
highest waves around 5 feet.
* WHERE...Grand Traverse Bay south of a line Grand Traverse
Light to Norwood MI, Seul Choix Point to 5NM West of Mackinac
Bridge, Norwood MI to 5NM West of Mackinac Bridge including
Little Traverse Bay, Sleeping Bear Point to Grand Traverse
Light MI and Point Betsie to Sleeping Bear Point MI.
* WHEN...Until 1 AM EST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Green Bay WI
211 PM CST Thu Nov 20 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-212015-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
211 PM CST Thu Nov 20 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
Patchy fog will restrict visibilities at times across north
central and central Wisconsin through early this evening.
.DAYS TWO THROUGH SEVEN...Friday through Thursday
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
