


Great Lakes Forecast
Issued by NWS
Issued by NWS
337 FZUS63 KDTX 160801 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 401 AM EDT Wed Jul 16 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 hybrid cold front and low pressure trough, averaging 29.80 inches, moves into the Great Lakes today and Thursday which brings showers and thunderstorms to the marine zones. Strong to severe thunderstorms will be possible this afternoon and evening. North-northwest winds behind this system will increase on Thursday, ranging from 20-25 knots. LHZ361-362-161615- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 401 AM EDT Wed Jul 16 2025 .TODAY...Southwest winds 5 to 10 knots backing to the southeast early in the afternoon...then becoming light and variable late in the afternoon. A chance of showers in the afternoon. Waves 1 to 3 feet. .TONIGHT...Light and variable winds becoming northeast 5 to 10 knots after midnight. A chance of showers and thunderstorms in the evening...then showers likely and a chance of thunderstorms after midnight. Waves 2 feet or less. .THURSDAY...North winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Showers likely in the morning. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .THURSDAY 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. .FRIDAY...Light and variable winds. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots backing to the northeast until early morning. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots. Waves 2 feet or less. $$ LHZ363-161615- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 401 AM EDT Wed Jul 16 2025 .TODAY...South winds 5 to 10 knots backing to the southeast late in the afternoon. A chance of showers in the afternoon. Waves 2 feet or less. .TONIGHT...Southeast winds 5 to 10 knots. A chance of showers and thunderstorms in the evening...then showers likely and a chance of thunderstorms after midnight. Waves 2 feet or less. .THURSDAY...Southwest winds 10 to 15 knots veering to the northwest in the late morning and early afternoon...then increasing to 15 to 20 knots early in the afternoon. A chance of showers in the morning. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. Waves 2 to 4 feet. .FRIDAY...North winds 5 to 10 knots becoming light and variable... then becoming southeast 5 to 10 knots late in the evening. Waves 1 to 3 feet. .SATURDAY...South winds 5 to 10 knots backing to the northeast in the late evening and early morning. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots. Waves 2 feet or less. $$ LHZ462>464-161615- 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- 401 AM EDT Wed Jul 16 2025 .TODAY...South winds 5 to 10 knots. A chance of showers and thunderstorms in the afternoon. Waves 2 feet or less. .TONIGHT...South winds 5 to 10 knots. A chance of showers and thunderstorms. Waves 2 feet or less. .THURSDAY...Southwest winds 5 to 10 knots becoming northwest 10 to 15 knots in the late morning and early afternoon...then increasing to 15 to 20 knots early in the afternoon. A chance of showers and thunderstorms in the morning...then a chance of showers in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. .THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. Waves 3 to 5 feet. .FRIDAY...Northeast winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SATURDAY...South winds 5 to 10 knots backing to the east in the late evening and early morning. A chance of showers until early morning. Waves 2 feet or less. .SUNDAY...North winds 5 to 10 knots. Waves 2 feet or less. $$ LHZ461-161615- MAFOR 1609/ HURON NORTH 12500 11400 12300 11200 11206 11106. A chance of thunderstorms this afternoon and tonight. Waves 2 feet or less. HURON SOUTH 12500 14400 11400 11406. A chance of thunderstorms tonight. Waves 2 feet or less. $$ KGK 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)