


Great Lakes Forecast
Issued by NWS
Issued by NWS
821 FZUS63 KDTX 091943 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 343 PM EDT Tue Sep 9 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 over New England maintains an average pressure of 30.20 inches across the central Great Lakes. A weak cold front drops across Lake Huron Wednesday night before high pressure, 30.30 inches, fills into Ontario for the late week period. LHZ361-100345- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 343 PM EDT Tue Sep 9 2025 .TONIGHT...Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...South winds 5 to 10 knots early in the morning becoming light and variable. Waves 2 feet or less. .WEDNESDAY NIGHT...Light and variable winds. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 10 knots until late afternoon becoming light and variable. Waves 2 feet or less. .THURSDAY NIGHT...Light and variable winds. Waves 2 feet or less. .FRIDAY...Light and variable winds becoming east 5 to 10 knots late in the afternoon...then becoming light and variable late in the evening. A chance of showers late in the evening. Waves 2 feet or less. .SATURDAY...Light and variable winds. A chance of showers early in the morning. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots until afternoon becoming light and variable...then becoming east 5 to 10 knots in the late evening and early morning. Waves 2 feet or less. $$ LHZ362-363-100345- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 343 PM EDT Tue Sep 9 2025 .TONIGHT...Southeast winds 10 to 15 knots becoming south 5 to 10 knots early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...South winds 5 to 10 knots until late afternoon becoming light and variable. Waves 2 feet or less. .WEDNESDAY NIGHT...Light and variable winds. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less. .THURSDAY NIGHT...Northeast winds 5 to 10 knots early in the evening becoming light and variable. Waves 2 feet or less. .FRIDAY...Light and variable winds becoming southeast 5 to 10 knots late in the afternoon. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots backing to the east in the late morning and early afternoon...then becoming light and variable early in the evening becoming northeast 5 to 10 knots in the late evening and early morning. A chance of showers. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and early afternoon...then becoming northeast 5 to 10 knots until early morning. Waves 2 feet or less. $$ LHZ462>464-100345- 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- 343 PM EDT Tue Sep 9 2025 .TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and early morning...then becoming south 5 to 10 knots early in the morning. Waves 1 to 3 feet. .WEDNESDAY...South winds 5 to 10 knots early in the morning becoming light and variable. Waves 2 feet or less. .WEDNESDAY NIGHT...Light and variable winds. Waves 2 feet or less. .THURSDAY...Light and variable winds becoming north 5 to 10 knots in the late morning and afternoon. Waves 2 feet or less. .THURSDAY NIGHT...North winds 10 to 15 knots becoming east 5 to 10 knots in the late evening and overnight. Waves 1 to 3 feet. .FRIDAY...Light and variable winds becoming northeast 5 to 10 knots late in the afternoon...then veering to the southeast late in the evening. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots veering to the north until early morning. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots increasing to 10 to 15 knots until early morning. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and early morning. $$ LHZ461-100345- MAFOR 0921/ HURON NORTH 13410 11400 13500 11400. Waves 2 to 4 feet tonight. Waves 2 feet or less Wednesday. HURON SOUTH 12300 15400. Waves 2 feet or less. $$ MV 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)