FZUS63 KDTX 192038 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 438 PM EDT Tue May 19 2026 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 sweeps across the region this evening, veering winds from southwest to northwest. Strong to severe thunderstorms will be possible ahead of this cold front. High pressure, 30.50 inches, then builds in mid-week. LHZ361-200445- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 438 PM EDT Tue May 19 2026 .TODAY...East winds 5 to 10 knots increasing to 10 to 15 knots late in the morning...then veering to the south early in the afternoon becoming southwest 15 to 20 knots late in the afternoon. Scattered showers. Waves 2 to 4 feet building to 3 to 5 feet in the late morning and afternoon. .TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to 25 knots early in the morning. Scattered showers in the evening. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY...Northwest winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots in the late morning and afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming north 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Northeast winds 5 to 10 knots veering to the east. Waves 2 feet or less. .FRIDAY...East winds 5 to 10 knots increasing to 15 to 20 knots. A chance of. Waves 2 feet or less building to 5 to 7 feet. Waves occasionally around 10 feet. .SATURDAY...East winds 20 to 25 knots with gusts to around 30 knots increasing to 30 knots with gusts to 35 knot gales in the late morning and early afternoon...then decreasing to 20 to 25 knots with gusts to around 30 knots early in the evening decreasing to 15 to 20 knots by midnight. A chance of showers. Waves 6 to 9 feet subsiding to 3 to 5 feet by midnight. Waves occasionally around 12 feet. $$ LHZ362-363-462-200445- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 438 PM EDT Tue May 19 2026 .TODAY...South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Scattered showers in the afternoon. Waves 3 to 5 feet building to 5 to 7 feet in the afternoon. Waves occasionally around 10 feet. .TONIGHT...Southwest winds 15 to 20 knots veering to the northwest in the late evening and overnight. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY...Northwest winds 15 to 20 knots. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. Waves 3 to 5 feet. .THURSDAY...Northeast winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...East winds 10 to 15 knots becoming northeast 15 to 20 knots . A chance of showers by midnight. Waves 1 to 3 feet building to 4 to 6 feet . Waves occasionally around 8 feet. .SATURDAY...East winds 20 to 25 knots with gusts to around 30 knots decreasing to 10 to 15 knots. Showers likely until afternoon...then a chance of showers . Waves 4 to 6 feet. $$ LHZ463-464-200445- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 438 PM EDT Tue May 19 2026 .TODAY...South winds 5 to 10 knots increasing to 10 to 15 knots late in the morning...then increasing to 15 to20 knots early in the afternoon decreasing to 10 to 15 knots late in the afternoon. Scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with damaging winds and large hail. Waves 2 to 4 feet. .TONIGHT...Southwest winds 10 to 15 knots. A chance of showers and scattered thunderstorms in the evening...then a chance of showers after midnight. Some thunderstorms may be severe with damaging winds and large hail. Waves 3 to 5 feet. .WEDNESDAY...North winds 10 to 15 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots. Waves 3 to 5 feet. .THURSDAY...North winds 10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the morning...then building to 2 to 4 feet late in the afternoon. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots by midnight. A chance of showers early in the evening. Rain showers likely by midnight. Waves 2 to 4 feet building to 4 to 6 feet . Waves occasionally around 8 feet. .SATURDAY...East winds 20 to 25 knots decreasing to 10 to 15 knots. Showers likely until afternoon...then a chance of showers . Waves 4 to 6 feet subsiding to 1 to 3 feet by midnight. Waves occasionally around 8 feet. $$ LHZ461-200445- MAFOR 1912 AMD/ HURON NORTH 11410 11426 11420 19426 11626 13730. Waves 2 to 4 feet building to 4 to 6 feet. Occasional wave height around 8 feet today. Waves 4 to 6 feet tonight. HURON SOUTH 11420 11420 19426 11510 19516 11520 19526 11620 11720 11710. Waves 2 to 4 feet building to 3 to 5 feet today. Waves 3 to 5 feet tonight. $$ CB 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)