


Great Lakes Forecast
Issued by NWS
Issued by NWS
199 FZUS63 KDTX 071945 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 345 PM EDT Tue Oct 7 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...A cold front exits across Lake Erie through tonight. High pressure, 30.50 inches, expands into the Great Lakes from the northwest on Wednesday. This high will influence the region through Thursday. The next cold front arrives over the western Great Lakes Thursday night into early Friday. LHZ361-080400- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 345 PM EDT Tue Oct 7 2025 .TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to 25 knots late in the evening...then becoming north 15 to 20 knots after midnight. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY...North winds 15 to 20 knots decreasing to 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots until early morning becoming light and variable. Waves 2 feet or less. .THURSDAY...Light and variable winds. Waves 2 feet or less. .THURSDAY NIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and overnight. Waves 1 to 3 feet. .FRIDAY...Southwest winds 10 to 15 knots becoming light and variable. Waves 1 to 3 feet. .SATURDAY...Light and variable winds becoming southeast 5 to 10 knots. Waves 2 feet or less. .SUNDAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots until early morning. Waves 1 to 3 feet. $$ LHZ362-363-080400- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 345 PM EDT Tue Oct 7 2025 .TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to 25 knots after midnight...then decreasing to 15 to 20 knots early in the morning. Waves 5 to 7 feet building to 6 to 9 feet after midnight. Waves occasionally around 12 feet. .WEDNESDAY...North winds 15 to 20 knots decreasing to 10 to 15 knots late in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Light and variable winds becoming east 5 to 10 knots in the late morning and early afternoon...then veering to the southeast early in the afternoon. Waves 2 feet or less. .THURSDAY NIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .FRIDAY...Southwest winds 10 to 15 knots becoming south 5 to 10 knots late in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY...South winds 5 to 10 knots backing to the southeast. Waves 2 feet or less. .SUNDAY...East winds 5 to 10 knots becoming southeast 10 to 15 knots. Waves 1 to 3 feet. $$ LHZ462>464-080400- 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- 345 PM EDT Tue Oct 7 2025 .TONIGHT...North winds 15 to 20 knots increasing to 20 to 25 knots after midnight...then decreasing to 15 to 20 knots early in the morning. Waves 3 to 5 feet building to 6 to 9 feet after midnight. Waves occasionally around 12 feet. .WEDNESDAY...North winds 15 to 20 knots. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots decreasing to 5 to 10 knots. Waves 3 to 5 feet. .THURSDAY...Northeast winds 5 to 10 knots veering to the east in the late morning and afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...Light and variable winds becoming south 5 to 10 knots in the late evening and early morning...then increasing to 10 to 15 knots after midnight. Waves 2 feet or less. .FRIDAY...South winds 5 to 10 knots. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots backing to the southeast until early morning. Waves 2 feet or less. .SUNDAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and early morning. Waves 1 to 3 feet. $$ LHZ461-080400- MAFOR 0721/ HURON NORTH 11720 12730 13820 11810 11710. Waves 1 to 3 feet building to 3 to 5 feet...THEN building to 4 to 6 feet. Occasional wave height around 8 feet tonight. Waves 2 to 4 feet Wednesday. HURON SOUTH 11810 11820 12830 13820 11810. Waves 2 to 4 feet building to 5 to 7 feet. Occasional wave height around 10 feet tonight. Waves 5 to 7 feet subsiding to 3 to 5 feet. Occasional wave height around 10 feet Wednesday. $$ TF 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)