Great Lakes Forecast
Issued by NWS
Issued by NWS
956 FZUS63 KDTX 210754 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 354 AM EDT Thu May 21 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, 30.40 inches, will slowly track eastward across the northern Great Lakes through Friday morning. Northeast wind veers east then strengthens late Friday into Saturday as low pressure tracks in from the Mid Mississippi Valley. LHZ361-211600- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 354 AM EDT Thu May 21 2026 .TODAY...East winds 5 to 10 knots. Waves 2 feet or less. .TONIGHT...East winds 5 to 10 knots early in the evening becoming light and variable...then becoming east 5 to 10 knots after midnight. Waves 2 feet or less. .FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .FRIDAY NIGHT...East winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Waves 4 to 6 feet building to 6 to 9 feet after midnight. Waves occasionally around 12 feet. .SATURDAY...East winds 20 to 25 knots increasing to 30 knots late in the morning...then decreasing to 15 to 20 knots late in the evening. Showers likely...then a chance of showers late in the afternoon. Waves 8 to 12 feet. Waves occasionally around 15 feet. .SUNDAY...Southeast winds 5 to 10 knots early in the morning veering to the south...then backing to the northeast early in the evening becoming light and variable. Waves 3 to 5 feet subsiding to 1 to 3 feet. .MONDAY...Light and variable winds becoming north 5 to 10 knots early in the evening...then backing to the southwest by midnight. Waves 2 feet or less. $$ LHZ362-363-211600- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 354 AM EDT Thu May 21 2026 .TODAY...Northeast winds 10 to 15 knots decreasing to 5 to 10 knots late in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast winds 5 to 10 knots increasing to 10 to 15 knots early in the morning. Waves 1 to 3 feet. .FRIDAY...Northeast winds 10 to 15 knots. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming east 15 to 20 knots after midnight. A chance of showers after midnight. Waves 5 to 7 feet. Waves occasionally around 10 feet. .SATURDAY...East winds 20 to 25 knots with gusts to 30 knots becoming southeast 10 to 15 knots late in the evening. Showers. Waves 8 to 12 feet. Waves occasionally around 15 feet. .SUNDAY...Southeast winds 5 to 10 knots becoming light and variable. Waves 3 to 5 feet subsiding to 1 to 3 feet. .MONDAY...Light and variable winds becoming west 5 to 10 knots in the late morning and early afternoon...then veering to the north early in the evening veering to the southeast by midnight. Waves 2 feet or less. $$ LHZ462>464-211600- 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- 354 AM EDT Thu May 21 2026 .TODAY...Northeast winds 10 to 15 knots. Waves 2 to 4 feet. .TONIGHT...Northeast winds 10 to 15 knots veering to the east early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the morning. .FRIDAY...Northeast winds 10 to 15 knots. Waves 2 to 4 feet. .FRIDAY NIGHT...East winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Showers likely after midnight. Waves 4 to 6 feet. .SATURDAY...East winds 20 to 25 knots with gusts to 30 knots becoming southeast 10 to 15 knots late in the evening. Showers. A chance of showers late in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .SUNDAY...Southwest winds 5 to 10 knots backing to the southeast . A chance of showers. Waves 2 feet or less. .MONDAY...Light and variable winds becoming north 5 to 10 knots early in the evening...then becoming light and variable by midnight. Waves 2 feet or less. $$ LHZ461-211600- MAFOR 2109/ HURON NORTH 12100 12200 12800 12100. Waves 2 feet or less. HURON SOUTH 11120 14110 11110 11100 11210. Waves 1 to 3 feet. $$ TF 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)