Marine Weather Message
Issued by NWS Gaylord, MI

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
236
WHUS73 KAPX 180650
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
250 AM EDT Sat Oct 18 2025

LMZ323-341-342-344>346-181500-
/O.CON.KAPX.SC.Y.0098.000000T0000Z-251018T1000Z/
/O.UPG.KAPX.GL.A.0009.251019T1200Z-251020T0300Z/
/O.NEW.KAPX.GL.W.0024.251019T1200Z-251020T0300Z/
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-
250 AM EDT Sat Oct 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...GALE WARNING IN EFFECT FROM 8 AM TO 11 PM EDT SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30
  kts from the southwest and highest waves around 8 feet. For
  the Gale Warning, Highest gusts up to 40 kts from the
  northwest and highest waves around 9 feet expected.

* WHERE...Portions of Lake Michigan.

* WHEN...For the Small Craft Advisory, until 6 AM EDT early this
  morning. For the Gale Warning, from 8 AM to 11 PM EDT Sunday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ346>349-181500-
/O.CON.KAPX.SC.Y.0098.000000T0000Z-251018T1000Z/
/O.UPG.KAPX.GL.A.0009.251019T1600Z-251020T0900Z/
/O.NEW.KAPX.GL.W.0024.251019T1600Z-251020T0900Z/
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-
250 AM EDT Sat Oct 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...GALE WARNING IN EFFECT FROM NOON SUNDAY TO 5 AM EDT MONDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30
  kts from the south and highest waves around 5 feet. For the
  Gale Warning, Highest gusts up to 45 kts from the northwest
  and highest waves around 10 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...For the Small Craft Advisory, until 6 AM EDT early this
  morning. For the Gale Warning, from noon Sunday to 5 AM EDT
  Monday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ345-181500-
/O.UPG.KAPX.GL.A.0009.251019T1600Z-251020T0900Z/
/O.NEW.KAPX.GL.W.0024.251019T1600Z-251020T0900Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
250 AM EDT Sat Oct 18 2025

...GALE WARNING IN EFFECT FROM NOON SUNDAY TO 5 AM EDT MONDAY...

* WHAT...Highest gusts up to 35 kts from the northwest and
  highest waves around 5 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge
  including Mackinac Island.

* WHEN...From noon Sunday to 5 AM EDT Monday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LSZ321-181500-
/O.CON.KAPX.SC.Y.0098.000000T0000Z-251018T1000Z/
/O.CON.KAPX.GL.A.0009.251019T1600Z-251020T0300Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
250 AM EDT Sat Oct 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WHAT...For the Small Craft Advisory, highest waves around 3
  feet. For the Gale Watch, Highest gusts up to 35 kts from the
  northwest and highest waves around 9 feet possible.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point
  Iroquois MI.

* WHEN...For the Small Craft Advisory, until 6 AM EDT early this
  morning. For the Gale Watch, from Sunday afternoon through
  Sunday evening.

* IMPACTS...Strong winds can cause hazardous highest waves which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and highest
waves.

&&

$$

LSZ322-181500-
/O.CON.KAPX.GL.A.0009.251019T1600Z-251020T0300Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
250 AM EDT Sat Oct 18 2025

...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and
  highest waves around 5 feet possible.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing
  Bay.

* WHEN...From Sunday afternoon through Sunday evening.

* IMPACTS...Strong winds can cause hazardous highest waves which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and highest
waves.

&&

$$