Great Lakes Forecast
Issued by NWS
Issued by NWS
658 FZUS63 KDTX 171359 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 959 AM EDT Mon Aug 17 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...High pressure, 30.20 inches, through the early week period. A cold front then tracks across the Great Lakes mid-week. LHZ361-172200- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 959 AM EDT Mon Aug 17 2026 .REST OF TODAY...West winds 5 to 10 knots. Waves 2 feet or less. .TONIGHT...West winds 5 to 10 knots early in the evening becoming light and variable...then becoming southwest 5 to 10 knots early in the morning. Waves 2 feet or less. .TUESDAY...Southwest winds 10 to 15 knots veering to the west early in the afternoon. A chance of showers and thunderstorms in the afternoon. Waves 1 to 3 feet. .TUESDAY NIGHT...Northwest winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. A chance of showers. Waves 1 to 3 feet. .WEDNESDAY...Northwest winds 5 to 10 knots increasing to 10 to 15 knots late in the morning...then decreasing to 5 to 10 knots late in the evening. Waves 1 to 3 feet. .THURSDAY...Northwest winds 5 to 10 knots backing to the west early in the evening...then veering to the west 5 to 10 knots by midnight. Waves 2 feet or less. .FRIDAY...South winds 5 to 10 knots. A chance of showers by midnight. Waves 2 feet or less. $$ LHZ362-363-172200- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 959 AM EDT Mon Aug 17 2026 .REST OF TODAY...North winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Light and variable winds becoming southwest 5 to 10 knots early in the morning. Waves 2 feet or less. .TUESDAY...Southwest winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. A chance of showers in the afternoon. Waves 1 to 3 feet. .TUESDAY NIGHT...South winds 5 to 10 knots veering to the west by midnight...then becoming northwest 10 to 15 knots after midnight. A chance of showers and thunderstorms in the evening...then a chance of showers after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet. .THURSDAY...Northwest winds 5 to 10 knots veering to the east by midnight. Waves 2 feet or less. .FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots . Waves 1 to 3 feet. $$ LHZ462>464-172200- 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- 959 AM EDT Mon Aug 17 2026 .REST OF TODAY...North winds 10 to 15 knots decreasing to 5 to 10 knots late in the afternoon. Waves 2 to 4 feet. .TONIGHT...North winds 5 to 10 knots early in the evening becoming light and variable. Waves 2 feet or less. .TUESDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less. .TUESDAY NIGHT...South winds 5 to 10 knots becoming west 10 to 15 knots in the late evening and overnight. Showers and a chance of thunderstorms in the evening...then showers likely after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots late in the morning...then veering to the northeast late in the evening. Waves 2 feet or less. .THURSDAY...North winds 5 to 10 knots veering to the northeast by midnight. Waves 2 feet or less. .FRIDAY...Southeast winds 5 to 10 knots becoming south 10 to 15 knots by midnight. Waves 2 feet or less. $$ LHZ461-172200- MAFOR 1715/ HURON NORTH 14700 11600 13500. Waves 2 feet or less. HURON SOUTH 14800 11700 13500. Waves 1 to 3 feet this afternoon. Waves 2 feet or less tonight and Tuesday morning. $$ MV 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)