


Great Lakes Forecast
Issued by NWS
Issued by NWS
109 FZUS63 KDTX 301955 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 355 PM EDT Sat Aug 30 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, will continue to hold over the Great Lakes through the weekend and into early next week. This will sustain dry weather and tranquil conditions. LHZ361-310400- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 355 PM EDT Sat Aug 30 2025 .TONIGHT...West winds 5 to 10 knots in the evening becoming light and variable. Waves 2 feet or less. .SUNDAY...Light and variable winds. Waves 2 feet or less. .SUNDAY NIGHT...Light and variable winds. Waves 2 feet or less. .MONDAY...Light and variable winds. Waves nearly calm. .MONDAY NIGHT...Light and variable winds. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming south 5 to 10 knots late in the evening. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots with gusts to around 30 knots early in the evening... then veering to the west in the late evening and early morning. Showers likely. Waves 1 to 3 feet building to 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...West winds 15 to 20 knots. Gusts to 30 knots until early evening. A chance of showers. Waves 4 to 6 feet. $$ LHZ362-363-310400- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 355 PM EDT Sat Aug 30 2025 .TONIGHT...Light and variable winds. Waves 2 feet or less. .SUNDAY...Light and variable winds. Waves 2 feet or less. .SUNDAY NIGHT...Light and variable winds. Waves 2 feet or less. .MONDAY...Light and variable winds. Waves 2 feet or less. .MONDAY NIGHT...Light and variable winds. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming south 10 to 15 knots. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots increasing to 20 to 25 knots. A chance of showers in the late morning and early afternoon. Rain showers likely and a chance of thunderstorms until early morning. Waves 3 to 5 feet building to 5 to 7 feet until early morning. Waves occasionally around 10 feet. .THURSDAY...West winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots in the late evening and early morning. Showers likely early in the morning. A chance of showers until early evening. Waves 6 to 9 feet. Waves occasionally around 12 feet. $$ LHZ462>464-310400- 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- 355 PM EDT Sat Aug 30 2025 .TONIGHT...Light and variable winds. Waves 2 feet or less. .SUNDAY...Light and variable winds. Waves 2 feet or less. .SUNDAY NIGHT...Light and variable winds. Waves 2 feet or less. .MONDAY...Light and variable winds. Waves 2 feet or less. .MONDAY NIGHT...Light and variable winds. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming east 5 to 10 knots late in the afternoon...then veering to the south late in the evening. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots with gusts to around 30 knots until early morning. A chance of showers and thunderstorms early in the evening. Rain showers likely and a chance of thunderstorms in the late evening and early morning. Waves 1 to 3 feet building to 5 to 7 feet. Waves occasionally around 10 feet. .THURSDAY...Southwest winds 20 to 25 knots with gusts to around 30 knots becoming west 15 to 20 knots with gusts to 35 knot gales until early morning. Showers likely early in the morning. A chance of showers in the late morning and early afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. $$ LHZ461-310400- MAFOR 3021/ HURON NORTH 11700 13600 12700 12600. Waves 2 feet or less. HURON SOUTH 11800 11100 11500 12600 13700. Waves 2 feet or less. $$ SS 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)