Great Lakes Forecast
Issued by NWS
Issued by NWS
431 FZUS63 KDTX 291459 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 959 AM EST Sat Nov 29 2025 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...Low pressure, depeening to 29.60 inches, will lift northeast out of the Central Plains today and track through Central Lake Huron tomorrow afternoon. A period of northwest gales behind the low is expected over much of Lake Huron late in the afternoon and early evening hours. LCZ460-292300- Lake St Clair- 959 AM EST Sat Nov 29 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING THROUGH SUNDAY EVENING... .REST OF TODAY...South winds 5 to 10 knots becoming southeast 10 to 15 knots late in the afternoon. Cloudy. A chance of light snow in the afternoon. Waves 2 feet or less. .TONIGHT...Southeast winds 15 to 20 knots. Gusts to 30 knots early in the morning. Snow until early morning...then rain and light snow early in the morning. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .SUNDAY...Southwest winds 20 to 25 knots veering to the west early in the afternoon. Gusts to 30 knots. Light rain early in the morning. Light snow until late afternoon...then a chance of light snow early in the afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the afternoon. Waves occasionally around 7 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots with gusts to 30 knots diminishing to 10 to 15 knots after midnight. Mostly clear. Waves 1 to 3 feet. .MONDAY...West winds 5 to 10 knots backing to the southwest in the afternoon and evening. Partly sunny in the morning becoming mostly cloudy. A chance of light snow in the evening. Waves 2 feet or less. .TUESDAY...Northwest winds 5 to 10 knots. Mostly cloudy. Light snow likely. Waves 2 feet or less. .WEDNESDAY...West winds 20 to 25 knots. Mostly cloudy. A chance of light snow. Waves 2 to 4 feet. $$ SF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes