


Marine Weather Message
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
703 WHUS73 KDTX 242000 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 400 PM EDT Sun Aug 24 2025 LHZ441-250815- /O.NEW.KDTX.SC.Y.0063.250825T1400Z-250826T1400Z/ Port Austin to Harbor Beach MI- 400 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM MONDAY TO 10 AM EDT TUESDAY... * WHAT...Expect sustained winds up to 20 knots from the northwest with gusts up to 25 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. * WHEN...The maximum winds are expected around 9 PM EDT Monday with the largest waves expected around 12 AM 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. && $$ LHZ421-442-250815- /O.NEW.KDTX.SC.Y.0063.250826T0200Z-250826T1400Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Harbor Beach to Port Sanilac MI- 400 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM MONDAY TO 10 AM EDT TUESDAY... * WHAT...Expect sustained winds up to 20 knots from the northwest with gusts up to 25 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay and Harbor Beach to Port Sanilac MI. * WHEN...The maximum winds are expected around 10 PM EDT Monday with the largest waves expected around 12 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ KGK