FZUS63 KDTX 182223 AAA GLFLH Open Lake Forecast for Lake Huron...UPDATED National Weather Service Detroit/Pontiac MI 623 PM 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...Strong to severe thunderstorms are likely this afternoon-evening and again possible Tuesday as a cold front sweeps across the region. High pressure, 30.50 inches, then builds in mid-week. LHZ361-190630- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 623 PM EDT Mon May 18 2026 .TONIGHT...Southeast winds 5 to 10 knots backing to the east by midnight...then veering to the south early in the morning. A chance of showers and thunderstorms in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...Southeast winds 10 to 15 knots becoming south 15 to 20 knots in the late morning and early afternoon...then veering to the southwest late in the afternoon. A chance of showers. Waves 3 to 5 feet building to 4 to 6 feet late in the afternoon. Waves occasionally around 8 feet. .TUESDAY NIGHT...West winds 15 to 20 knots becoming northwest 20 to 25 knots with gusts to around 30 knots 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 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 decreasing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Light and variable winds becoming east 5 to 10 knots late in the morning...then becoming light and variable late in the evening. 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 2 to 4 feet. .SATURDAY...East winds 20 to 25 knots decreasing to 10 to 15 knots. A chance of showers. Waves 2 to 4 feet. $$ LHZ362-363-190630- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 623 PM EDT Mon May 18 2026 .TONIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots early in the morning. Showers and a chance of thunderstorms in the evening. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TUESDAY...South winds 15 to 20 knots increasing to 20 to 25 knots early in the afternoon...then decreasing to 15 to 20 knots late in the afternoon. A chance of showers in the afternoon. Waves 4 to 6 feet building to 6 to 9 feet in the afternoon. Waves occasionally around 12 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest with gusts to around 30 knots in the late evening and overnight. A chance of showers in the evening. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY...Northwest winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots in the late morning and afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northwest 10 to 15 knots after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...Northeast winds 5 to 10 knots becoming light and variable...then becoming northeast 5 to 10 knots late in the evening. Waves 1 to 3 feet. .FRIDAY...East winds 5 to 10 knots increasing to 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet by midnight. .SATURDAY...East winds 15 to 20 knots decreasing to 10 to 15 knots . A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet by midnight. $$ LHZ462>464-190630- 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- 623 PM EDT Mon May 18 2026 .TONIGHT...South winds 10 to 15 knots. Showers and a chance of thunderstorms in the evening. 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 becoming west 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 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...Northeast winds 5 to 10 knots becoming north 10 to 15 knots late in the afternoon...then becoming northeast 5 to 10 knots late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...East winds 5 to 10 knots increasing to 15 to 20 knots. A chance of showers by midnight. Waves 1 to 3 feet building to 2 to 4 feet by midnight. .SATURDAY...East winds 15 to 20 knots decreasing to 10 to 15 knots. A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. $$ LHZ461-190630- MAFOR 1821/ HURON NORTH 12416 13410 12420 11520. A chance of thunderstorms this evening. Waves 3 to 5 feet tonight. Waves 3 to 5 feet building to 5 to 7 feet. Occasional wave height around 10 feet Tuesday. HURON SOUTH 11516 14410 12420 11520. A chance of thunderstorms this evening. Waves 2 to 4 feet tonight. Waves 3 to 5 feet Tuesday. $$ KDK 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)