807
WHUS73 KDTX 200703
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
303 AM EDT Sun Sep 20 2026

LHZ421-422-441>443-202030-
/O.CON.KDTX.SC.Y.0056.260920T1600Z-260924T0200Z/
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-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
303 AM EDT Sun Sep 20 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
10 PM EDT WEDNESDAY...

* WHAT...Expect sustained winds up to 26 knots from the
  northeast with gusts up to 32 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, Port Austin to Harbor Beach MI, Harbor Beach to
  Port Sanilac MI and Port Sanilac to Port Huron MI.

* WHEN...The maximum winds are expected around 9 PM EDT Monday
  with the largest waves expected around 6 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LCZ460-202030-
/O.CON.KDTX.SC.Y.0056.260921T0000Z-260924T0200Z/
Lake St Clair-
303 AM EDT Sun Sep 20 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 10 PM EDT WEDNESDAY...

* WHAT...Expect sustained winds up to 29 knots from the
  northeast with gusts up to 34 knots. The largest significant
  waves will be 4 feet with a potential maximum wave height of 5
  feet.

* WHERE...Lake St Clair.

* WHEN...The maximum winds are expected around 11 PM EDT Tuesday
  with the largest waves expected around 2 AM EDT 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.

&&

$$

LEZ444-202030-
/O.CON.KDTX.SC.Y.0056.260921T0000Z-260924T0200Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
303 AM EDT Sun Sep 20 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 10 PM EDT WEDNESDAY...

* WHAT...Expect sustained winds up to 26 knots from the
  northeast with gusts up to 34 knots. The largest significant
  waves will be 6 feet with a potential maximum wave height of 8
  feet.

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

* WHEN...The maximum winds are expected around 11 PM EDT Tuesday
  with the largest waves expected around 2 AM EDT 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.

&&

$$