Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1041 PM EDT Thu Oct 16 2025
LHZ346>349-171045-
/O.CON.KAPX.SC.Y.0098.251017T1500Z-251018T1000Z/
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-
1041 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO
6 AM EDT SATURDAY...
* WHAT...Highest gusts up to 30 kts from the south and highest
waves around 7 feet expected.
* WHERE...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...From 11 AM Friday to 6 AM EDT 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1041 PM EDT Thu Oct 16 2025
LMZ323-341-342-344>346-171045-
/O.CON.KAPX.SC.Y.0098.251017T1200Z-251018T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1041 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM FRIDAY TO
6 AM EDT SATURDAY...
* WHAT...Highest gusts up to 30 kts from the south and highest
waves around 8 feet expected.
* WHERE...Portions of Lake Michigan.
* WHEN...From 8 AM Friday to 6 AM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1041 PM EDT Thu Oct 16 2025
LSZ321-171045-
/O.CON.KAPX.SC.Y.0098.251017T1500Z-251018T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1041 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO
6 AM EDT SATURDAY...
* WHAT...Highest gusts up to 25 kts from the south and highest
waves around 4 feet expected.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI.
* WHEN...From 11 AM Friday to 6 AM EDT 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
1023 PM EDT Thu Oct 16 2025
LMZ844>849-171030-
/O.CON.KGRR.SC.Y.0086.251017T0900Z-251019T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
1023 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM FRIDAY TO
8 PM EDT SATURDAY...
* WHAT...South winds 15 to 25 knots with gusts up to 30 knots
and waves 5 to 8 feet expected.
* WHERE...St Joseph to Manistee.
* WHEN...From 5 AM Friday to 8 PM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1012 PM EDT Thu Oct 16 2025
LMZ221-171415-
/O.CON.KMQT.SC.Y.0162.251017T1200Z-251018T0000Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1012 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT
FRIDAY...
* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and
waves 2 to 5 ft expected.
* WHERE...Green Bay North of line from Cedar River MI to Rock
Island Passage.
* WHEN...From 8 AM to 8 PM EDT 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1012 PM EDT Thu Oct 16 2025
LMZ248-250-171415-
/O.CON.KMQT.SC.Y.0162.251017T0900Z-251018T0000Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1012 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 PM EDT
FRIDAY...
* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and
waves 6 to 9 ft expected.
* WHERE...Seul Choix Point to Point Detour MI and 5NM East of a
line from Fairport MI to Rock Island Passage.
* WHEN...From 5 AM to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1012 PM EDT Thu Oct 16 2025
LSZ248-171415-
/O.CON.KMQT.SC.Y.0162.251017T0900Z-251017T1800Z/
Huron Islands to Marquette MI-
1012 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM TO 2 PM EDT
FRIDAY...
* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and
waves 1 to 2 ft expected.
* WHERE...Huron Islands to Marquette MI.
* WHEN...From 5 AM to 2 PM EDT 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1012 PM EDT Thu Oct 16 2025
LSZ249>251-171415-
/O.CON.KMQT.SC.Y.0162.251017T0900Z-251018T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
1012 PM EDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 PM EDT
FRIDAY...
* WHAT...South winds 15 to 20 kt with gusts up to 30 kt and
waves 1 to 3 ft expected.
* WHERE...Marquette to Munising MI, Munising to Grand Marais MI
and Grand Marais to Whitefish Point MI.
* WHEN...From 5 AM to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
902 PM CDT Thu Oct 16 2025
LMZ521-522-171015-
/O.CON.KGRB.SC.Y.0078.251017T1200Z-251018T0600Z/
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-
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
902 PM CDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM FRIDAY TO
1 AM CDT SATURDAY...
* WHAT...South winds 10 to 20 kts with gusts up to 30 kts and
waves 2 to 4 ft expected.
* WHERE...Central and Southern Bay of Green Bay.
* WHEN...From 7 AM Friday to 1 AM CDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...There is potential for a Gale Warning
late Saturday night into Sunday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
902 PM CDT Thu Oct 16 2025
LMZ541>543-171015-
/O.CON.KGRB.SC.Y.0078.251017T0600Z-251018T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
902 PM CDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM FRIDAY TO
4 PM CDT SATURDAY...
* WHAT...South winds 15 to 25 kts with gusts up to 30 kts and
waves 7 to 10 ft expected.
* WHERE...Lake Michigan nearshore waters from Washington Island
to Sheboygan.
* WHEN...From 1 AM Friday to 4 PM CDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...There is potential for a Gale Warning
late Saturday night into Sunday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
857 PM CDT Thu Oct 16 2025
LMZ643>646-171000-
/O.CON.KMKX.SC.Y.0090.251017T0600Z-251018T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
857 PM CDT Thu Oct 16 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM FRIDAY TO
10 AM CDT SATURDAY...
* WHAT...South winds 15 to 25 kt and waves 3 to 7 ft expected.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...From 1 AM Friday to 10 AM CDT 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.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
416 PM EDT Thu Oct 16 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-172030-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
416 PM EDT Thu Oct 16 2025
This hazardous weather outlook is for portions of southwest Lower
Michigan.
.DAY ONE...This Afternoon and Tonight
No Hazardous Weather at this time
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Thunderstorms are possible from Saturday afternoon into Sunday
morning. At this time severe weather is not expected.
Strong winds associated with a fall storm system moving through
the Great Lakes are forecast this weekend. The strongest winds
are expected on Sunday. Wind gusts over 40 mph will be possible.
Some ponding of water is possible in low spots this weekend as
forecast rainfall totals are expected to be in excess of 1 inch
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
245 PM CDT Thu Oct 16 2025
LMZ521-522-541>543-171945-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
245 PM CDT Thu Oct 16 2025
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...Tonight
Gusty south winds and building waves will result in conditions
hazardous to small craft late tonight.
.DAYS TWO THROUGH SEVEN...Friday through Thursday
A period of gusty south winds and high waves will create
hazardous conditions for small craft from Friday through Saturday.
Northwest winds gusting to gale force are possible Sunday into
Sunday evening. There is also a small chance of thunderstorms at
times from Friday night through early Sunday morning.
$$
GK
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
245 PM CDT Thu Oct 16 2025
LMZ643>646-171945-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
245 PM CDT Thu Oct 16 2025
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
Small craft conditions build in overnight.
.DAYS TWO THROUGH SEVEN...Friday through Thursday
Small craft conditions are expected Friday through Saturday
morning and again Sunday into Monday for strong northwesterly
winds. Cannot rule out a few gusts approaching gale force Sunday.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
245 PM CDT Thu Oct 16 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-171945-
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-
245 PM CDT Thu Oct 16 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
There is a small chance of non-severe thunderstorms tonight.
.DAYS TWO THROUGH SEVEN...Friday through Thursday
There is a chance of non-severe thunderstorms Friday night through
Saturday night. Locally heavy rainfall is possible in the Fox
Valley and lakeshore areas late Saturday night into Sunday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
