FZUS63 KDTX 181357 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 957 AM EDT Mon May 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...A warm front lifts across Lake Huron this morning, with southerly flow expanding across all of the local waters. Strong to severe thunderstorms are possible this afternoon- evening and again Tuesday as a cold front sweeps across the region. High pressure, 30.50 inches, then builds in mid-week. LHZ361-182200- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 957 AM EDT Mon May 18 2026 .REST OF TODAY...Southeast winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. A chance of showers and thunderstorms in the afternoon. Waves 3 to 5 feet. .TONIGHT...South winds 5 to 10 knots backing to the southeast in the late evening and overnight. A chance of showers and thunderstorms. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and early afternoon...then veering to the southwest early in the afternoon. Showers likely and a chance of thunderstorms in the morning...then showers in the afternoon. Waves 3 to 5 feet building to 4 to 6 feet early in the afternoon. Waves occasionally around 8 feet. .TUESDAY NIGHT...Northwest winds 20 to 25 knots. Gusts to 30 knots in the late evening and overnight. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY...Northwest winds 20 to 25 knots with gusts to around 30 knots becoming north 5 to 10 knots. Waves 5 to 7 feet subsiding to 2 to 4 feet late in the evening. Waves occasionally around 10 feet. .THURSDAY...Light and variable winds becoming east 5 to 10 knots . Waves 2 feet or less. .FRIDAY...Southeast winds 5 to 10 knots becoming east 10 to 15 knots. Waves 2 feet or less building to 2 to 4 feet. $$ LHZ362-363-182200- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 957 AM EDT Mon May 18 2026 .REST OF TODAY...South winds 15 to 20 knots. A chance of showers and thunderstorms in the afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TONIGHT...South winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. A chance of showers and thunderstorms in the evening...then a chance of showers after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TUESDAY...South winds 15 to 20 knots increasing to 20 to 25 knots in the late morning and afternoon. A chance of showers in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest in the late evening and overnight. A chance of showers in the evening. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY...Northwest winds 15 to 20 knots veering to the north late in the afternoon...then decreasing to 10 to 15 knots late in the evening. Waves 6 to 9 feet subsiding to 4 to 6 feet late in the evening. Waves occasionally around 12 feet. .THURSDAY...North winds 5 to 10 knots veering to the northeast by midnight. Waves 2 to 4 feet subsiding to 2 feet or less. .FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots. Waves 1 to 3 feet building to 2 to 4 feet by midnight. $$ LHZ462>464-182200- 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 OffShore- 957 AM EDT Mon May 18 2026 .REST OF TODAY...South winds 15 to 20 knots. Waves 3 to 5 feet. .TONIGHT...South winds 10 to 15 knots. Showers likely and a chance of thunderstorms in the evening...then a chance of showers after midnight. Waves 3 to 5 feet. .TUESDAY...South winds 15 to 20 knots. A chance of showers and thunderstorms in the afternoon. Waves 3 to 5 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots. A chance of showers and thunderstorms in the evening. Waves 3 to 5 feet. .WEDNESDAY...North winds 10 to 15 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...North winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots . Waves 1 to 3 feet building to 2 to 4 feet by midnight. $$ LHZ461-182200- MAFOR 1815/ HURON NORTH 11420 11426 12416 13410 11420. A chance of thunderstorms. Waves 3 to 5 feet. HURON SOUTH 12410 11419 11416 14410. Waves 2 to 4 feet. $$ DRK 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)