


Great Lakes Forecast
Issued by NWS
Issued by NWS
281 FZUS63 KDTX 171406 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 1006 AM EDT Thu Apr 17 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, drifts across the Great Lakes today leading to favorable marine conditions. The next low pressure system organizes upstream and is set to bring showers and thunderstorms to the area Friday through the weekend. LHZ361-172215- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 1006 AM EDT Thu Apr 17 2025 .REST OF TODAY...Southeast winds 5 to 10 knots becoming east 15 to 20 knots. Waves 1 to 3 feet building to 3 to 5 feet late in the afternoon. .TONIGHT...Southeast winds 15 to 20 knots. Showers after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .FRIDAY...Southeast winds 10 to 15 knots becoming south 5 to 10 knots in the late morning and early afternoon...then backing to the east early in the afternoon. Showers likely. Waves 4 to 6 feet. .FRIDAY NIGHT...North winds 5 to 10 knots backing to the west in the late evening and early morning...then increasing to 10 to 15 knots after midnight. Showers likely and a chance of thunderstorms in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning...then building to 2 to 4 feet after midnight. Waves occasionally around 8 feet. .SATURDAY...West winds 15 to 20 knots becoming northwest 10 to 15 knots late in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SUNDAY...Northwest winds 5 to 10 knots veering to the north in the late morning and early afternoon...then veering to the east early in the evening increasing to 10 to 15 knots in the late evening and early morning. A chance of rain in the late evening and early morning. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and early morning. .MONDAY...East winds 15 to 20 knots backing to the north in the late evening and early morning. Rain likely. A chance of rain in the late evening and early morning. Waves 4 to 6 feet. $$ LHZ362-363-172215- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 1006 AM EDT Thu Apr 17 2025 .REST OF TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet late in the afternoon. .TONIGHT...Southeast winds 15 to 20 knots becoming south 20 to 25 knots early in the morning. A chance of showers. Waves 3 to 5 feet building to 5 to 7 feet early in the morning. Waves occasionally around 10 feet. .FRIDAY...South winds 20 to 25 knots with gusts to around 30 knots decreasing to 10 to 15 knots. Showers in the morning... then showers likely in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .FRIDAY NIGHT...South winds 10 to 15 knots. Showers and a chance of thunderstorms in the evening...then showers after midnight. Waves 3 to 5 feet. .SATURDAY...Southwest winds 10 to 15 knots veering to the northwest. Waves 2 to 4 feet. .SUNDAY...Northwest winds 10 to 15 knots veering to the east in the late evening and early morning. A chance of rain in the late evening and early morning. Waves 1 to 3 feet building to 2 to 4 feet until early morning. .MONDAY...East winds 15 to 20 knots backing to the north in the late evening and early morning. Rain likely until afternoon... then a chance of rain until early morning. Waves 4 to 6 feet. $$ LHZ462>464-172215- 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- 1006 AM EDT Thu Apr 17 2025 .REST OF TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Waves 1 to 3 feet. .TONIGHT...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the late evening and overnight. A chance of showers after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. .FRIDAY...South winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots in the late morning and afternoon. Showers likely in the morning...then a chance of showers in the afternoon. Waves 4 to 6 feet. .FRIDAY NIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots in the late evening and early morning...then becoming southwest 10 to 15 knots after midnight. A chance of showers in the evening...then showers likely after midnight. Waves 3 to 5 feet. Waves occasionally around 8 feet. .SATURDAY...West winds 10 to 15 knots. Showers likely in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the evening. .SUNDAY...North winds 10 to 15 knots veering to the east in the late evening and early morning. A chance of rain until early morning. Waves 1 to 3 feet building to 2 to 4 feet until early morning. .MONDAY...Southeast winds 15 to 20 knots veering to the southwest in the late evening and early morning. Rain likely until afternoon...then a chance of rain early in the evening. Waves 4 to 6 feet. Waves occasionally around 8 feet. $$ LHZ461-172215- MAFOR 1715/ HURON NORTH 11400 13310 12420 11430 11436. Waves 1 to 3 feet this afternoon. Waves 3 to 5 feet tonight. Waves 5 to 7 feet. Occasional wave height around 10 feet Friday morning. HURON SOUTH 11400 13310 12420 11430 11436. Waves 2 feet or less this afternoon. Waves 2 to 4 feet building to 3 to 5 feet tonight. Waves 4 to 6 feet. Occasional wave height around 8 feet Friday morning. $$ 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)