Marine Weather Message
Issued by NWS Detroit/Pontiac, 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
490
WHUS73 KDTX 011849
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
249 PM EDT Sat Nov 1 2025

LHZ361>363-421-441-462-020700-
/O.NEW.KDTX.GL.A.0016.251103T0300Z-251104T0300Z/
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
249 PM EDT Sat Nov 1 2025

...GALE WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...Expect sustained winds up to 31 knots from the west
  with gusts up to 38 knots. The largest significant waves will
  be 9 feet with a potential maximum wave height of 13 feet.

* WHERE...Portions of Lake Huron.

* WHEN...The maximum winds are expected around 4 AM EDT Monday
  with the largest waves expected around 6 AM EDT Monday.

* IMPACTS...Strong winds can cause hazardous 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 waves.

&&

$$

LHZ422-020700-
/O.NEW.KDTX.GL.A.0016.251103T0300Z-251103T1500Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
249 PM EDT Sat Nov 1 2025

...GALE WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
MORNING...

* WHAT...Expect sustained winds up to 29 knots from the
  southwest with gusts up to 34 knots. The largest significant
  waves will be 5 feet with a potential maximum wave height of 7
  feet.

* WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI.

* WHEN...The maximum winds are expected around 1 AM EDT Monday
  with the largest waves expected around 5 AM EDT Monday.

* IMPACTS...Strong winds can cause hazardous 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 waves.

&&

$$