521
WHUS73 KDTX 101428
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
928 AM EST Wed Dec 10 2025

LHZ443-110230-
/O.UPG.KDTX.SC.Y.0094.000000T0000Z-251211T0900Z/
/O.EXA.KDTX.GL.W.0028.251210T1600Z-251211T0400Z/
Port Sanilac to Port Huron MI-
928 AM EST Wed Dec 10 2025

...GALE WARNING IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Expect sustained winds up to 28 knots from the
  northwest with gusts up to 33 knots. The largest significant
  waves will be 6 feet with a potential maximum wave height of 8
  feet.

* WHERE...Port Sanilac to Port Huron MI.

* WHEN...The maximum winds are expected around 2 PM EST
  Wednesday with the largest waves expected around 6 PM EST
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.


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.

&&

$$

LHZ421-441-442-110230-
/O.CON.KDTX.GL.W.0028.251210T1600Z-251211T0400Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-
928 AM EST Wed Dec 10 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Expect sustained winds up to 32 knots from the
  northwest with gusts up to 36 knots. The largest significant
  waves will be 11 feet with a potential maximum wave height of
  16 feet.

* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
  Inner Saginaw Bay, Port Austin to Harbor Beach MI and Harbor
  Beach to Port Sanilac MI.

* WHEN...The maximum winds are expected around 7 PM EST
  Wednesday with the largest waves expected around 7 PM EST
  Wednesday.

* IMPACTS...Strong winds will cause hazardous 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.

&&

$$

LHZ363-462>464-110230-
/O.CON.KDTX.GL.W.0028.251210T1600Z-251211T0800Z/
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
928 AM EST Wed Dec 10 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM EST THURSDAY...

* WHAT...Expect sustained winds up to 32 knots from the
  northwest with gusts up to 36 knots. The largest significant
  waves will be 13 feet with a potential maximum wave height of
  19 feet.

* WHERE...Lake Huron from Sturgeon Point to Alabaster MI beyond
  5NM off shore, Lake Huron from Port Austin to Harbor Beach
  beyond 5NM Off Shore, Lake Huron from Harbor Beach to Port
  Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac
  to Port Huron beyond 5NM Off Shore.

* WHEN...The maximum winds are expected around 7 PM EST
  Wednesday with the largest waves expected around 7 PM EST
  Wednesday.

* IMPACTS...Strong winds will cause hazardous 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.

&&

$$

LCZ460-110230-
/O.CON.KDTX.SC.Y.0094.000000T0000Z-251211T0900Z/
Lake St Clair-
928 AM EST Wed Dec 10 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
THURSDAY...

* WHAT...Expect sustained winds up to 25 knots from the west
  with gusts up to 32 knots. The largest significant waves will
  be 3 feet with a potential maximum wave height of 5 feet.

* WHERE...Lake St Clair.

* WHEN...The maximum winds are expected around 8 PM EST
  Wednesday with the largest waves expected around 4 AM EST
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LEZ444-110230-
/O.CON.KDTX.SC.Y.0094.000000T0000Z-251211T0900Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
928 AM EST Wed Dec 10 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
THURSDAY...

* WHAT...Expect sustained winds up to 22 knots from the west
  with gusts up to 32 knots. The largest significant waves will
  be 5 feet with a potential maximum wave height of 7 feet.

* WHERE...Michigan Waters of Lake Erie from Detroit River to
  North Cape MI.

* WHEN...The maximum winds are expected around 7 PM EST
  Wednesday with the largest waves expected around 4 AM EST
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ422-110230-
/O.CON.KDTX.SC.Y.0094.000000T0000Z-251211T0900Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
928 AM EST Wed Dec 10 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
THURSDAY...

* WHAT...Expect sustained winds up to 28 knots from the
  northwest with gusts up to 33 knots. The largest significant
  waves will be 6 feet with a potential maximum wave height of 8
  feet.

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

* WHEN...The maximum winds are expected around 8 PM EST
  Wednesday with the largest waves expected around 7 PM EST
  Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$