Great Lakes Forecast
Issued by NWS
Issued by NWS
085 FZUS63 KDTX 050301 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 1001 PM EST Tue Nov 4 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 system, 29.70 inches, will tracks into the Central Great Lakes tomorrow, bringing gust to gales across Lake Huron and the Saginaw Bay. High pressure, 30.20 inches, will then briefly fill in on Thursday. LCZ460-051115- Lake St Clair- 1001 PM EST Tue Nov 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...South winds 10 to 15 knots increasing to 20 to 25 knots. Mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .WEDNESDAY...Southwest winds 20 to 25 knots with gusts to 30 knots veering to the northwest with gusts to 35 knot gales late in the afternoon. Mostly cloudy with a chance of light rain. Waves 2 to 4 feet. .WEDNESDAY NIGHT...Northwest winds to 30 knots diminishing to 15 to 20 knots. Clear. A chance of light rain early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Northwest winds 10 to 15 knots becoming west 5 to 10 knots in the late morning and early afternoon...then backing to the southwest early in the afternoon. Mostly sunny. Waves 2 feet or less. .THURSDAY NIGHT...South winds 10 to 15 knots increasing to 20 to 25 knots in the late evening and overnight. Partly cloudy early in the evening becoming mostly cloudy. A chance of light rain after midnight. Waves 2 feet or less building to 2 to 4 feet in the late evening and overnight. .FRIDAY...South winds 20 to 25 knots becoming southwest 15 to 20 knots in the afternoon and evening. Light rain...then light rain likely in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the evening. .SATURDAY...Northeast winds 15 to 20 knots. Partly cloudy. A chance of light rain. Waves 2 feet or less. .SUNDAY...Northwest winds 20 to 25 knots. Partly cloudy. Light rain likely and a chance of light snow. Waves 2 to 4 feet. $$ SC Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes