371
WHUS73 KDTX 040832
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
332 AM EST Thu Dec 4 2025

LHZ421-422-441-042100-
/O.CON.KDTX.SC.Y.0091.000000T0000Z-251204T2100Z/
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-
332 AM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Expect sustained winds up to 24 knots from the
  northwest with gusts up to 31 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 7 AM EST Thursday
  with the largest waves expected around 9 AM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ442-443-042100-
/O.CON.KDTX.SC.Y.0091.000000T0000Z-251204T2100Z/
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
332 AM EST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Expect sustained winds up to 21 knots from the northwest
  with gusts up to 30 knots. The largest significant waves will
  be 4 feet with a potential maximum wave height of 5 feet.

* WHERE...Harbor Beach to Port Sanilac MI and Port Sanilac to
  Port Huron MI.

* WHEN...The maximum winds are expected around 6 AM EST Thursday
  with the largest waves expected around 9 AM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$