Great Lakes Forecast
Issued by NWS
Issued by NWS
924 FZUS63 KDTX 120839 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 339 AM EST Wed Nov 12 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...Increasing southwest winds today ahead of a cold front, which tracks through the Great Lakes. Brief, localized gusts to gales are possible today over the open waters of Lake Huron. LCZ460-121645- Lake St Clair- 339 AM EST Wed Nov 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...West winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and early afternoon...then increasing to 20 to 25 knots with gusts to 30 knots late in the afternoon. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...West winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Mostly clear. Waves 1 to 3 feet. .THURSDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Sunny. Waves 2 feet or less. .THURSDAY NIGHT...West winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly clear. Waves 2 feet or less. .FRIDAY...West winds 5 to 10 knots backing to the east in the evening. Partly cloudy in the morning then clearing. Waves 2 feet or less. .SATURDAY...Southwest winds 20 to 25 knots. Partly cloudy. Light rain likely. Waves 1 to 3 feet. .SUNDAY...Northwest winds 20 to 25 knots with gusts to 30 knots. Partly cloudy. Light rain likely. Waves 2 to 4 feet. A Small Craft Advisory may be needed. $$ AM Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes