


Great Lakes Forecast
Issued by NWS
Issued by NWS
129 FZUS63 KDTX 031917 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 317 PM EDT Fri Oct 3 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...Western periphery of high pressure, 30.10 inches, holds over the Great Lakes today bringing continuation of dry conditions and light winds. A slight increase in wind speeds are expected this weekend, with a cold front bringing the next chance for active weather on Monday. LHZ361-040330- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 317 PM EDT Fri Oct 3 2025 .TONIGHT...Light and variable winds. Waves 2 feet or less. .SATURDAY...Southeast winds 5 to 10 knots. Waves 2 feet or less. .SATURDAY NIGHT...Southeast winds 5 to 10 knots veering to the south in the late evening and early morning...then increasing to 10 to 15 knots after midnight. Waves 1 to 3 feet. .SUNDAY...South winds 10 to 15 knots. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. .SUNDAY NIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots after midnight. A chance of showers after midnight. Waves 3 to 5 feet. .MONDAY...South winds 10 to 15 knots veering to the west late in the morning...then becoming northwest 5 to 10 knots late in the afternoon. A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .TUESDAY...Northwest winds 5 to 10 knots increasing to 15 to 20 knots with gusts to around 30 knots. A chance of showers early in the morning. Waves 2 feet or less building to 3 to 5 feet until early morning. .WEDNESDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 2 feet or less until early morning. $$ LHZ362-363-040330- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 317 PM EDT Fri Oct 3 2025 .TONIGHT...South winds 5 to 10 knots in the evening becoming light and variable. Waves 1 to 3 feet. .SATURDAY...South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 4 feet. .SUNDAY...South winds 10 to 15 knots. Waves 3 to 5 feet. .SUNDAY NIGHT...South winds 15 to 20 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. .MONDAY...South winds 15 to 20 knots decreasing to 10 to 15 knots late in the morning...then becoming south 10 to 15 knots late in the evening. A chance of showers late in the morning. Rain showers likely late in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the evening. .TUESDAY...North winds 5 to 10 knots backing to the northwest in the late morning and early afternoon...then increasing to 15 to 20 knots until early morning. A chance of showers early in the morning. Waves 2 feet or less building to 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY...North winds 15 to 20 knots decreasing to 5 to 10 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. $$ LHZ462>464-040330- 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- 317 PM EDT Fri Oct 3 2025 .TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots late in the evening...then decreasing to 5 to 10 knots after midnight. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet. .SUNDAY...South winds 10 to 15 knots. Waves 1 to 3 feet. .SUNDAY NIGHT...South winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Waves 3 to 5 feet. .MONDAY...South winds 10 to 15 knots. A chance of showers late in the morning. Rain showers likely late in the afternoon...then showers late in the evening. Waves 2 to 4 feet. .TUESDAY...North winds 5 to 10 knots becoming northwest 15 to 20 knots. Showers early in the morning...then a chance of showers until early evening. Waves 1 to 3 feet building to 5 to 7 feet in the late evening and early morning. Waves occasionally around 10 feet. .WEDNESDAY...North winds 15 to 20 knots decreasing to 10 to 15 knots. Waves 4 to 6 feet. $$ LHZ461-040330- MAFOR 0321/ HURON NORTH 11400 12300 14400 11410. Waves 2 feet or less. HURON SOUTH 13400 13500 12400. Waves 2 feet or less. $$ AM 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)