Marine Weather Message
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
335 WHUS73 KDTX 270901 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 401 AM EST Thu Nov 27 2025 LHZ422-272130- /O.CAN.KDTX.LO.Y.0009.000000T0000Z-251127T1500Z/ /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T1500Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... ...LOW WATER ADVISORY IS CANCELLED... * WHAT...Expect sustained winds up to 31 knots from the west with gusts up to 41 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 4 AM EST Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...As of 4 AM EST, the water level at Essexville was 6 inches below low water datum. The critical mark for safe navigation is 10 inches below low water datum, and with water levels forecast to continue to rise through the morning, the Low Water Advisory was cancelled. 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. && $$ LEZ444-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T0900Z/ /O.CON.KDTX.LO.Y.0009.000000T0000Z-251128T0900Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY... ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY... * WHAT...During the Gale Warning, expect sustained winds up to 27 knots from the west with gusts up to 37 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. During the Low Water Advisory, abnormally low water levels. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 4 AM EST Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...As of 330 AM EST, the water level at Toledo was 22 inches below low water datum, which is more than a foot below the critical mark for safe navigation. Water levels will range from one to two feet below the critical mark for safe navigation today, then improve to near the critical mark tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ LHZ361-362-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T1200Z/ 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- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots from the northwest with gusts up to 37 knots. The largest significant waves will be 12 feet with a potential maximum wave height of 17 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 4 AM EST Thursday with the largest waves expected around 9 PM EST Thursday. * 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. && $$ LHZ363-462-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T1500Z/ Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the northwest with gusts up to 41 knots. The largest significant waves will be 13 feet with a potential maximum wave height of 19 feet. * WHERE...Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 12 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LHZ421-441-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Expect sustained winds up to 32 knots from the northwest with gusts up to 40 knots. The largest significant waves will be 8 feet with a potential maximum wave height of 11 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay and Port Austin to Harbor Beach MI. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 12 AM EST Friday. * 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. && $$ LHZ442-443-463-464-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T1500Z/ Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Expect sustained winds up to 33 knots from the west with gusts up to 41 knots. The largest significant waves will be 11 feet with a potential maximum wave height of 16 feet. * WHERE...Harbor Beach to Port Sanilac MI, Port Sanilac to Port Huron MI, Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LCZ460-272130- /O.CON.KDTX.GL.W.0026.000000T0000Z-251128T0900Z/ Lake St Clair- 401 AM EST Thu Nov 27 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY... * WHAT...Expect sustained winds up to 26 knots from the west with gusts up to 37 knots. The largest significant waves will be 3 feet with a potential maximum wave height of 4 feet. * WHERE...Lake St Clair. * WHEN...The maximum winds are expected around 4 AM EST Thursday with the largest waves expected around 4 AM EST Thursday. * 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. && $$