


Great Lakes Forecast
Issued by NWS
Issued by NWS
540 FZUS63 KDTX 161920 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 320 PM EDT Tue Sep 16 2025 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, 30.30 inches, holds over the eastern Great Lakes through the middle of the week, which will continue to support dry weather and light winds. A second high pressure system will then drop in from the central Canadian provinces, centering over eastern Ontario by the end of the week. LHZ361-362-170330- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 320 PM EDT Tue Sep 16 2025 .TONIGHT...Light and variable winds. Waves 2 feet or less. .WEDNESDAY...Light and variable winds. Waves 2 feet or less. .WEDNESDAY NIGHT...Light and variable winds becoming west 5 to 10 knots after midnight. Waves 2 feet or less. .THURSDAY...Northwest winds 5 to 10 knots. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds 5 to 10 knots veering to the north in the late evening and early morning...then becoming northeast 10 to 15 knots after midnight. Waves 2 feet or less. .FRIDAY...Northeast winds 10 to 15 knots decreasing to 5 to 10 knots late in the morning...then becoming east 10 to 15 knots late in the evening. Waves 2 to 4 feet. .SATURDAY...East winds 10 to 15 knots becoming southeast 15 to 20 knots in the late morning and early afternoon...then decreasing to 10 to 15 knots until early morning. Waves 3 to 5 feet. .SUNDAY...Southeast winds 10 to 15 knots becoming south 5 to 10 knots in the late evening and early morning. A chance of showers. Waves 1 to 3 feet. $$ LHZ363-462>464-170330- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 320 PM EDT Tue Sep 16 2025 .TONIGHT...North winds 5 to 10 knots early in the evening becoming light and variable. Waves 2 feet or less. .WEDNESDAY...Light and variable winds. Waves 2 feet or less. .WEDNESDAY NIGHT...Light and variable winds. Waves 2 feet or less. .THURSDAY...West winds 5 to 10 knots veering to the north in the late morning and afternoon. Waves 2 feet or less. .THURSDAY NIGHT...North winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. Waves 2 feet or less. .FRIDAY...Northeast winds 10 to 15 knots. Waves 3 to 5 feet. .SATURDAY...East winds 10 to 15 knots decreasing to 5 to 10 knots early in the evening...then becoming southeast 10 to 15 knots in the late evening and early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning. .SUNDAY...South winds 10 to 15 knots. A chance of showers until early morning. Waves 1 to 3 feet. $$ LHZ461-170330- MAFOR 1621/ HURON NORTH 13300 14400 11400. Waves nearly calm. HURON SOUTH 12100 11200 11300 12400 12500. Waves nearly calm. $$ AM 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)