


Great Lakes Forecast
Issued by NWS
Issued by NWS
677 FZUS63 KDTX 010733 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 333 AM EDT Mon Sep 1 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, 30.30 inches, will remain anchored over the eastern Great Lakes through Tuesday, providing tranquil boating conditions. Deepening low pressure is forecast across the northern Great Lakes Wednesday which will drive a strong cold front across Lake Huron. This system will cause an increase in winds and waves and provide rain to the region late Wednesday and Wednesday night. LHZ361-011545- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 333 AM EDT Mon Sep 1 2025 .TODAY...Light and variable winds becoming east 5 to 10 knots late in the afternoon. Waves 2 feet or less. .TONIGHT...Southeast winds 5 to 10 knots veering to the south early in the morning. Waves 2 feet or less. .TUESDAY...South winds 5 to 10 knots early in the morning becoming light and variable...then becoming east 5 to 10 knots early in the afternoon. Waves 2 feet or less. .TUESDAY NIGHT...Southeast winds 5 to 10 knots veering to the south in the late evening and overnight. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots veering to the west late in the evening. A chance of showers. Rain showers likely late in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet. .THURSDAY...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. Showers likely early in the morning...then a chance of showers. Waves 3 to 5 feet. .FRIDAY...Southwest winds 15 to 20 knots with gusts to around 30 knots veering to the west in the late evening and early morning. Showers likely. A chance of showers in the late evening and early morning. Waves 3 to 5 feet. $$ LHZ362-363-011545- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 333 AM EDT Mon Sep 1 2025 .TODAY...Light and variable winds. Waves 2 feet or less. .TONIGHT...Light and variable winds becoming east 5 to 10 knots in the late evening and early morning...then becoming light and variable early in the morning. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming southeast 5 to 10 knots early in the afternoon. Waves 2 feet or less. .TUESDAY NIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots after midnight. Waves 1 to 3 feet. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots. A chance of showers late in the morning. Rain showers likely late in the evening. Waves 3 to 5 feet building to 4 to 6 feet late in the afternoon. Waves occasionally around 8 feet. .THURSDAY...West winds 15 to 20 knots. Showers likely early in the morning...then a chance of showers in the late morning and early afternoon. Waves 4 to 6 feet. .FRIDAY...Southwest winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 35 knot gales until early evening...then becoming west 15 to 20 knots in the late evening and early morning. A chance of showers. Waves 4 to 6 feet building to 6 to 9 feet. Waves occasionally around 12 feet. $$ LHZ462>464-011545- 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- 333 AM EDT Mon Sep 1 2025 .TODAY...Light and variable winds. Waves 2 feet or less. .TONIGHT...Northeast winds 5 to 10 knots veering to the southeast early in the morning. Waves 2 feet or less. .TUESDAY...Light and variable winds. Waves 2 feet or less. .TUESDAY NIGHT...East 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 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots late in the afternoon. A chance of showers late in the afternoon. Rain showers likely late in the evening. Waves 1 to 3 feet building to 3 to 5 feet. .THURSDAY...Southwest winds 15 to 20 knots veering to the west in the late morning and early afternoon...then decreasing to 10 to 15 knots until early morning. Showers likely early in the morning. A chance of showers early in the evening. Waves 4 to 6 feet. Waves occasionally around 8 feet. .FRIDAY...Southwest winds 15 to 20 knots. Gusts to 35 knot gales until early evening. A chance of showers. Waves 4 to 6 feet. $$ LHZ461-011545- MAFOR 0109/ HURON NORTH 13400 14300 11400. Waves nearly calm. HURON SOUTH 13300 11200 12100 11200 11300. Waves 2 feet or less. $$ SC 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)