


Great Lakes Forecast
Issued by NWS
Issued by NWS
500 FZUS63 KDTX 030144 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 944 PM EDT Tue Sep 2 2025 For waters beyond five nautical miles off shore on Lake Huron Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...High pressure, 30.20 inches, persists across the eastern Great Lakes tonight while low pressure, 29.60 inches, is forecast to develop over western Lake Superior Wednesday. This system will move into northern Ontario while driving a strong cold front across Lake Huron Wednesday night triggering showers and a few thunderstorms. Much cooler air will advance across the Great Lakes in the wake of this system and persist into the weekend. LHZ361-030945- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 944 PM EDT Tue Sep 2 2025 .REST OF TONIGHT...South winds 5 to 10 knots. Waves 1 to 3 feet. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots late in the afternoon. A chance of showers in the morning...then showers in the afternoon. A chance of waterspouts in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .WEDNESDAY NIGHT...West winds 15 to 20 knots. Showers in the evening. Waves 3 to 5 feet. .THURSDAY...West winds 15 to 20 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY NIGHT...Southwest winds 10 to 15 knots backing to the south after midnight. Showers likely after midnight. Waves 3 to 5 feet. .FRIDAY...South winds 15 to 20 knots with gusts to around 30 knots becoming southwest 20 to 25 knots with gusts to around 30 knots late in the morning...then becoming west 15 to 20 knots with gusts to around 30 knots late in the afternoon decreasing to 10 to 15 knots late in the evening. Showers likely in the morning. A chance of showers. Waves 4 to 6 feet. .SATURDAY...West winds 15 to 20 knots with gusts to around 30 knots decreasing to 10 to 15 knots in the late evening and early morning. A chance of showers early in the morning. Waves 3 to 5 feet. Waves occasionally around 8 feet. .SUNDAY...West winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and early morning. Waves 1 to 3 feet. $$ LHZ362-363-030945- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 944 PM EDT Tue Sep 2 2025 .REST OF TONIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots with gusts to around 30 knots in the late morning and afternoon. A chance of showers in the morning...then showers likely in the afternoon. Waves 3 to 5 feet. .WEDNESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest after midnight. A chance of waterspouts in the evening. Showers in the evening...then a chance of showers after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...West winds 15 to 20 knots decreasing to 10 to 15 knots in the late morning and afternoon. Waves 4 to 6 feet. .THURSDAY NIGHT...Southwest winds 10 to 15 knots increasing to 15 to 20 knots after midnight. A chance of showers after midnight. Waves 3 to 5 feet. Waves occasionally around 8 feet. .FRIDAY...South winds 20 to 25 knots with gusts to 35 knot gales becoming west 15 to 20 knots with gusts to around 30 knots late in the afternoon. A chance of showers. Waves 6 to 9 feet. Waves occasionally around 12 feet. .SATURDAY...West winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and early morning. Waves 4 to 6 feet. .SUNDAY...West winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning. Waves occasionally around 8 feet. $$ LHZ462>464-030945- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 944 PM EDT Tue Sep 2 2025 .REST OF TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots after midnight. Waves 1 to 3 feet. .WEDNESDAY...South winds 10 to 15 knots. A chance of showers in the afternoon. Waves 2 to 4 feet. .WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming west 15 to 20 knots after midnight. Showers. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots in the late morning and afternoon. Showers in the morning. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 3 to 5 feet. .FRIDAY...South winds 20 to 25 knots with gusts to 35 knot gales becoming west 15 to 20 knots with gusts to around 30 knots late in the afternoon...then decreasing to 10 to 15 knots late in the evening. A chance of showers. Waves 5 to 7 feet. Waves occasionally around 10 feet. .SATURDAY...Southwest winds 10 to 15 knots becoming west 15 to 20 knots with gusts to around 30 knots until early evening...then decreasing to 10 to 15 knots in the late evening and early morning. Waves 3 to 5 feet. .SUNDAY...West winds 10 to 15 knots becoming northwest 5 to 10 knots until early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning. $$ LHZ461-030945- MAFOR 0303/ HURON NORTH 11400 13410 12426 11526 11716. A chance of waterspouts Wednesday afternoon and Wednesday evening. Waves 2 feet or less overnight. Waves 1 to 3 feet building to 3 to 5 feet Wednesday. Waves 3 to 5 feet Wednesday evening. HURON SOUTH 15410 11516 11616. A chance of waterspouts Wednesday afternoon. Waves 1 to 3 feet overnight. Waves 2 to 4 feet Wednesday and Wednesday evening. $$ MR Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)