WHUS73 KDTX 230650
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
250 AM EDT Sun Aug 23 2026

LHZ421-441-232000-
/O.EXT.KDTX.SC.Y.0050.000000T0000Z-260824T2000Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
250 AM EDT Sun Aug 23 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT MONDAY...

* WHAT...Expect sustained winds up to 24 knots from the 
  northwest with gusts up to 31 knots. The largest significant 
  waves will be 5 feet with a potential maximum wave height of 7 
  feet.

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

* WHEN...The maximum winds are expected around 6 AM EDT Sunday 
  with the largest waves expected around 11 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ442-443-232000-
/O.EXT.KDTX.SC.Y.0050.000000T0000Z-260824T2000Z/
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
250 AM EDT Sun Aug 23 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT MONDAY...

* WHAT...Expect sustained winds up to 21 knots from the 
  northwest with gusts up to 31 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 9 AM EDT Sunday 
  with the largest waves expected around 11 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ422-232000-
/O.CON.KDTX.SC.Y.0050.000000T0000Z-260824T0800Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
250 AM EDT Sun Aug 23 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT MONDAY...

* WHAT...Expect sustained winds up to 26 knots from the 
  northwest with gusts up to 31 knots. The largest significant 
  waves will be 3 feet with a potential maximum wave height of 4 
  feet.

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

* WHEN...The maximum winds are expected around 7 PM EDT Sunday 
  with the largest waves expected around 7 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$