####018009250#### WHUS73 KDTX 212209 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 609 PM EDT Mon Apr 21 2025 LHZ422-220830- /O.NEW.KDTX.LO.Y.0005.250421T2209Z-250422T0400Z/ /O.CON.KDTX.GL.W.0018.000000T0000Z-250422T0200Z/ /O.CON.KDTX.SC.Y.0035.250422T0200Z-250422T1400Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 609 PM EDT Mon Apr 21 2025 ...LOW WATER ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...During the Low Water Advisory, abnormally low water levels. During the Gale Warning, expect sustained winds up to 24 knots from the southwest with gusts up to 37 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. During the Small Craft Advisory, expect sustained winds up to 23 knots from the west with gusts up to 34 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...During the Low Water Advisory, the maximum winds are expected around 6 PM EDT Monday with the largest waves expected around 6 PM EDT Monday. During the Small Craft Advisory, the maximum winds are expected around 10 PM EDT Monday with the largest waves expected around 10 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS... Water levels at Essexville now reside at -8 inches below low water datum. Water levels are forecasted to continue to drop between -10 to -14 inches below low water datum through late this evening, rising above critical threshold levels around and after Midnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ441>443-220830- /O.CON.KDTX.GL.W.0018.000000T0000Z-250422T0200Z/ /O.CON.KDTX.SC.Y.0035.250422T0200Z-250422T1400Z/ Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- 609 PM EDT Mon Apr 21 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...During the Gale Warning, expect sustained winds up to 22 knots from the southwest with gusts up to 37 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. During the Small Craft Advisory, expect sustained winds up to 21 knots from the west with gusts up to 32 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Gale Warning, the maximum winds are expected around 6 PM EDT Monday with the largest waves expected around 7 PM EDT Monday. During the Small Craft Advisory, the maximum winds are expected around 10 PM EDT Monday with the largest waves expected around 10 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-220830- /O.CON.KDTX.GL.W.0018.000000T0000Z-250422T0200Z/ /O.CON.KDTX.SC.Y.0035.250422T0200Z-250422T1400Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 609 PM EDT Mon Apr 21 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...During the Gale Warning, expect sustained winds up to 24 knots from the southwest with gusts up to 39 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. During the Small Craft Advisory, expect sustained winds up to 23 knots from the west with gusts up to 32 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. * WHEN...During the Gale Warning, the maximum winds are expected around 6 PM EDT Monday with the largest waves expected around 8 PM EDT Monday. During the Small Craft Advisory, the maximum winds are expected around 10 PM EDT Monday with the largest waves expected around 10 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LCZ460-220800- /O.CON.KDTX.GL.W.0018.000000T0000Z-250422T0200Z/ /O.CON.KDTX.SC.Y.0035.250422T0200Z-250422T0800Z/ Lake St Clair- 609 PM EDT Mon Apr 21 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM EDT TUESDAY... * WHAT...During the Gale Warning, expect sustained winds up to 18 knots from the southwest with gusts up to 35 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. During the Small Craft Advisory, expect sustained winds up to 16 knots from the west with gusts up to 26 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Lake St Clair. * WHEN...During the Gale Warning, the maximum winds are expected around 6 PM EDT Monday with the largest waves expected around 6 PM EDT Monday. During the Small Craft Advisory, the maximum winds are expected around 12 AM EDT Tuesday with the largest waves expected around 12 AM EDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ361-362-220830- /O.CON.KDTX.GL.W.0018.250422T0000Z-250422T1400Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 609 PM EDT Mon Apr 21 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT TUESDAY... * WHAT...Expect sustained winds up to 25 knots from the west with gusts up to 37 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 5 AM EDT Tuesday with the largest waves expected around 6 AM EDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LEZ444-220800- /O.CON.KDTX.SC.Y.0034.000000T0000Z-250422T0800Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 609 PM EDT Mon Apr 21 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT TUESDAY... * WHAT...Expect sustained winds up to 20 knots from the west with gusts up to 35 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 6 PM EDT Monday with the largest waves expected around 6 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$