Great Lakes Forecast
Issued by NWS
Issued by NWS
748 FZUS63 KDTX 211938 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 338 PM EDT Sat Sep 21 2024 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 ridge of high pressure, 29.90 inches, holds today, with weak low pressure, 29.80 inches, moving in over the northern Ohio River Valley into Lake Erie tomorrow evening to Monday morning. This will bring occasional rain with embedded thunderstorms, and will also push in a cold front, which will flip wind direction from SSE to NNW/NNE. LCZ460-220345- Lake St Clair- 338 PM EDT Sat Sep 21 2024 .TONIGHT...Light and variable winds. Mostly clear. Waves 2 feet or less. .SUNDAY...Light and variable winds becoming southeast 5 to 10 knots in the late morning and afternoon. Partly sunny. Waves 2 feet or less. .SUNDAY NIGHT...South winds 5 to 10 knots becoming southeast 10 to 15 knots in the late evening and overnight. Light showers. Waves 2 feet or less. .MONDAY...South winds 10 to 15 knots veering to the northwest in the late morning and early afternoon...then diminishing to 5 to 10 knots early in the afternoon. Mostly cloudy. Waves 2 feet or less. .MONDAY NIGHT...North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Mostly cloudy. A chance of light showers after midnight. Waves 2 feet or less. .TUESDAY...West winds 5 to 10 knots backing to the southeast in the afternoon and evening. Mostly cloudy becoming partly cloudy. Waves 2 feet or less. .WEDNESDAY...Northwest winds 5 to 10 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 feet or less. .THURSDAY...North winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. $$ AM Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes