Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 PM EST Fri Dec 5 2025
LSZ322-060315-
/O.EXT.KAPX.SC.Y.0119.000000T0000Z-251206T2100Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
203 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EST SATURDAY...
* WHAT...Highest gusts up to 25 kts from the west and highest
waves around 4 feet.
* WHERE...St. Marys River Point Iroquois to E. Potagannissing
Bay.
* WHEN...Until 4 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 PM EST Fri Dec 5 2025
LHZ345>348-060315-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251206T2100Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
203 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
SATURDAY...
* WHAT...Highest gusts up to 25 kts from the west and highest
waves around 6 feet.
* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
including Mackinac Island, St Ignace to False Detour Channel,
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI
Including Thunder Bay National Marine Sanctuary.
* WHEN...Until 4 PM EST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 PM EST Fri Dec 5 2025
LMZ323-341-342-344>346-060315-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251206T2100Z/
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-
203 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
SATURDAY...
* WHAT...Highest gusts up to 25 kts from the west and highest
waves around 7 feet.
* WHERE...Portions of Lake Michigan.
* WHEN...Until 4 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 PM EST Fri Dec 5 2025
LHZ349-060315-
/O.CON.KAPX.SC.Y.0118.000000T0000Z-251206T1000Z/
Sturgeon Pt to Alabaster MI-
203 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...
* WHAT...Highest gusts up to 30 kts from the southwest and
highest waves around 7 feet.
* WHERE...Sturgeon Pt to Alabaster MI.
* WHEN...Until 5 AM EST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 PM EST Fri Dec 5 2025
LSZ321-060315-
/O.CON.KAPX.SC.Y.0118.251206T0900Z-251206T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
203 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
* WHAT...Highest gusts up to 25 kts from the west and highest
waves around 9 feet.
* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
Iroquois MI.
* WHEN...From 4 AM to 4 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
313 PM CST Fri Dec 5 2025
LMZ643>646-060515-
/O.CON.KMKX.SC.Y.0106.000000T0000Z-251206T0600Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
313 PM CST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
* WHAT...Southwest winds 15 to 25 kt.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...Until midnight CST tonight.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
MRC
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
349 PM EST Fri Dec 5 2025
LSZ249>251-060900-
/O.CON.KMQT.SC.Y.0194.251206T0800Z-251207T0000Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
349 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 PM EST
SATURDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 7 to 10 ft expected.
* WHERE...Marquette to Munising MI, Munising to Grand Marais MI
and Grand Marais to Whitefish Point MI.
* WHEN...From 3 AM to 7 PM 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.
&&
$$
TAP
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
349 PM EST Fri Dec 5 2025
LSZ248-060900-
/O.EXT.KMQT.SC.Y.0194.251206T0600Z-251206T1800Z/
Huron Islands to Marquette MI-
349 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 1 PM EST
SATURDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
waves 3 to 6 ft expected.
* WHERE...Huron Islands to Marquette MI.
* WHEN...From 1 AM to 1 PM EST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
349 PM EST Fri Dec 5 2025
LMZ248-250-060300-
/O.EXT.KMQT.SC.Y.0193.000000T0000Z-251206T0300Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
349 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
waves 2 to 4 ft occurring.
* WHERE...Seul Choix Point to Point Detour MI and 5NM East of a
line from Fairport MI to Rock Island Passage.
* WHEN...Until 10 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
346 PM EST Fri Dec 5 2025
LHZ421-422-441-060900-
/O.EXT.KDTX.SC.Y.0092.000000T0000Z-251206T1500Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-
346 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EST SATURDAY...
* WHAT...Expect sustained winds up to 22 knots from the
southwest with gusts up to 32 knots. The largest significant
waves will be 6 feet with a potential maximum wave height of 8
feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay, Inner Saginaw Bay SW of Point Au Gres to
Bay Port MI and Port Austin to Harbor Beach MI.
* WHEN...The maximum winds are expected around 9 PM EST Friday
with the largest waves expected around 10 PM EST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
245 PM EST Fri Dec 5 2025
LMZ844>849-060345-
/O.CON.KGRR.SC.Y.0106.000000T0000Z-251207T0000Z/
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-
245 PM EST Fri Dec 5 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...
* WHAT...West winds 15 to 25 knots with gusts up to 30 knots and
waves 5 to 8 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until 7 PM 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.
&&
$$
