140
WHUS73 KDTX 171904
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
304 PM EDT Thu Apr 17 2025

LHZ421-422-180815-
/O.NEW.KDTX.SC.Y.0033.250418T0600Z-250418T2000Z/
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-
304 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 4 PM EDT FRIDAY...

* WHAT...Expect sustained winds up to 23 knots from the south
  with gusts up to 27 knots. The largest significant waves will
  be 3 feet with a potential maximum wave height of 4 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 8 AM EDT Friday
  with the largest waves expected around 9 AM EDT Friday.

* 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>443-180815-
/O.NEW.KDTX.SC.Y.0033.250418T0600Z-250418T2000Z/
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
304 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 4 PM EDT FRIDAY...

* WHAT...Expect sustained winds up to 21 knots from the south
  with gusts up to 26 knots. The largest significant waves will
  be 5 feet with a potential maximum wave height of 7 feet.

* WHERE...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 7 AM EDT Friday
  with the largest waves expected around 9 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LCZ460-180815-
/O.NEW.KDTX.SC.Y.0033.250418T1200Z-250419T0200Z/
Lake St Clair-
304 PM EDT Thu Apr 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 10 PM EDT FRIDAY...

* WHAT...Expect sustained winds up to 20 knots from the
  southwest with gusts up to 30 knots. The largest significant
  waves will be 2 feet with a potential maximum wave height of 3
  feet.

* WHERE...Lake St Clair.

* WHEN...The maximum winds are expected around 1 PM EDT Friday
  with the largest waves expected around 11 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$