WHUS73 KDTX 130736
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
336 AM EDT Mon Apr 13 2026

LHZ421-422-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
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-
336 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Expect sustained winds up to 25 knots from the
  southwest with gusts up to 33 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 Inner Saginaw Bay SW of Point Au Gres to
  Bay Port MI.

* WHEN...The maximum winds are expected around 3 AM EDT Monday
  with the largest waves expected around 3 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ441-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
Port Austin to Harbor Beach MI-
336 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Expect sustained winds up to 21 knots from the
  southwest with gusts up to 29 knots. The largest significant
  waves will be 4 feet with a potential maximum wave height of 5
  feet.

* WHERE...Port Austin to Harbor Beach MI.

* WHEN...The maximum winds are expected around 3 AM EDT Monday
  with the largest waves expected around 3 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ442-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
Harbor Beach to Port Sanilac MI-
336 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Expect sustained winds up to 21 knots from the
  southwest with gusts up to 29 knots. The largest significant
  waves will be 3 feet with a potential maximum wave height of 4
  feet.

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

* WHEN...The maximum winds are expected around 3 AM EDT Monday
  with the largest waves expected around 5 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ443-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
Port Sanilac to Port Huron MI-
336 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Expect sustained winds up to 21 knots from the
  southwest with gusts up to 27 knots. The largest significant
  waves will be 3 feet with a potential maximum wave height of 4
  feet.

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

* WHEN...The maximum winds are expected around 4 AM EDT Monday
  with the largest waves expected around 5 AM EDT Monday.

* 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-LEZ444-131600-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1600Z/
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
336 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY...

* WHAT...Expect sustained winds up to 20 knots from the
  southwest with gusts up to 30 knots. The largest significant
  waves will be 3 feet with a potential maximum wave height of 4
  feet.

* WHERE...In Lake St Clair, Lake St Clair. In Lake Erie,
  Michigan Waters of Lake Erie from Detroit River to North Cape
  MI.

* WHEN...The maximum winds are expected around 5 AM EDT Monday
  with the largest waves expected around 6 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$