FZUS63 KDTX 181329 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 929 AM EDT Sat Jul 18 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...Will get a brief break from Canadian wildfire smoke as southwestly flow pushes it northeast out of the area. A low pressure system tracking through the northern lakes region today will drop a cold front through the eastern lakes which will bring some showers and thunderstorms this morning and afternoon. High pressure will then build into the region for Sunday. LHZ361-182130- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 929 AM EDT Sat Jul 18 2026 .REST OF TODAY...Northwest winds 20 to 25 knots decreasing to 15 to 20 knots late in the afternoon. Gusts to 30 knots. Areas of smoke. Waves 4 to 6 feet. .TONIGHT...Northwest winds 15 to 20 knots becoming 5 to 10 knots early in the morning. Smoke in the evening. Patchy smoke after midnight. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally around 8 feet. .SUNDAY...Light and variable winds. Waves 2 feet or less. .SUNDAY NIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Waves 2 feet or less. .MONDAY...South winds 10 to 15 knots increasing to 15 to 20 knots with gusts to around 30 knots late in the evening. A chance of showers late in the morning. Rain showers and a chance of thunderstorms late in the afternoon. Waves 2 to 4 feet building to 3 to 5 feet. .TUESDAY...West winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 35 knot gales in the late morning and early afternoon...then becoming northwest to 30 knots with gusts to 35 knot gales . A chance of showers. Waves 6 to 9 feet building to 8 to 12 feet . Waves occasionally around 15 feet. .WEDNESDAY...Northwest winds to 30 knots decreasing to 15 to 20 knots. Gusts to 35 knot gales. Waves 6 to 9 feet. Waves occasionally around 12 feet. $$ LHZ362-363-182130- 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- 929 AM EDT Sat Jul 18 2026 .REST OF TODAY...West winds 15 to 20 knots veering to the northwest with gusts to around 30 knots early in the afternoon... then increasing to 20 to 25 knots with gusts to 35 knot gales late in the afternoon. A chance of showers late in the morning. Patchy smoke. Waves 5 to 7 feet building to 6 to 9 feet late in the afternoon. Waves occasionally around 12 feet. .TONIGHT...North winds 20 to 25 knots with gusts to around 30 knots decreasing to 10 to 15 knots. Patchy smoke. Waves 5 to 7 feet. Waves occasionally around 10 feet. .SUNDAY...North winds 5 to 10 knots early in the morning becoming light and variable. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .SUNDAY NIGHT...Light and variable winds becoming southeast 5 to 10 knots by midnight...then becoming south 10 to 15 knots after midnight. Waves 2 feet or less. .MONDAY...South winds 10 to 15 knots with gusts to around 30 knots increasing to 20 to 25 knots with gusts to around 30 knots late in the afternoon. A chance of showers late in the morning. Rain showers and a chance of thunderstorms late in the afternoon...then showers likely late in the evening. Waves 1 to 3 feet building to 5 to 7 feet. Waves occasionally around 10 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late morning and early afternoon...then increasing to 20 to 25 knots early in the evening becoming northwest to 30 knots by midnight. Gusts to 35 knot gales.Showers likely early in the morning...then a chance of showers. Waves 6 to 9 feet building to 10 to 14 feet . Waves occasionally around 18 feet. .WEDNESDAY...Northwest winds to 30 knots decreasing to 15 to 20 knots. Gusts to 35 knot gales. A chance of showers early in the morning. Waves 8 to 12 feet. Waves occasionally around 15 feet. $$ LHZ462>464-182130- 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- 929 AM EDT Sat Jul 18 2026 .REST OF TODAY...West winds 15 to 20 knots veering to the north with gusts to around 30 knots late in the afternoon. A chance of showers and thunderstorms. Patchy smoke in the afternoon. Waves 3 to 5 feet. .TONIGHT...Northwest winds 20 to 25 knots with gusts to around 30 knots becoming north 10 to 15 knots. Patchy smoke. Waves 6 to 9 feet. Waves occasionally around 12 feet. .SUNDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots in the late morning and afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the afternoon. .SUNDAY NIGHT...Light and variable winds becoming south 5 to 10 knots after midnight. Waves 2 feet or less. .MONDAY...South winds 5 to 10 knots increasing to 15 to 20 knots with gusts to around 30 knots. Showers late in the afternoon. Waves 1 to 3 feet building to 4 to 6 feet late in the afternoon. Waves occasionally around 8 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late morning and early afternoon...then becoming northwest 15 to 20 knots with gusts to around 30 knots early in the evening increasing to 20 to 25 knots with gusts to around 30 knots by midnight. Showers early in the morning. A chance of thunderstorms. A chance of showers . Waves 3 to 5 feet building to 8 to 12 feet . Waves occasionally around 15 feet. .WEDNESDAY...Northwest winds 20 to 25 knots decreasing to 15 to 20 knots . Gusts to 35 knot gales. Waves 6 to 9 feet. Waves occasionally around 12 feet. $$ LHZ461-182130- MAFOR 1815/ HURON NORTH 12730 11720 11710 11810 11800 11100 11800. Waves 4 to 6 feet this afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet. Occasional wave height around 8 feet tonight. Waves 2 feet or less Sunday morning. HURON SOUTH 11610 12730 11820 13810 11100. A chance of showers late this morning. Waves 3 to 5 feet this afternoon. Waves 5 to 7 feet subsiding to 3 to 5 feet. Occasional wave height around 10 feet tonight. Waves 2 to 4 feet Sunday morning. $$ MR 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)