FZUS63 KDTX 142030 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 330 PM EST Wed Jan 14 2026 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...Inbound arctic air will lead to near gale force winds, heavy freezing spray, and snow squalls tonight. Lingering troughing will hold across the eastern Great Lakes through Thursday while high pressure, 30.10 inches, expands across Lake Superior. Another low pressure system is forecast to track across the northern Great Lakes on Friday, bringing more gusty winds and snow showers into this weekend. LCZ460-150430- Lake St Clair- 330 PM EST Wed Jan 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots by midnight...then diminishing to 15 to 20 knots with gusts to 30 knots early in the morning. Mostly cloudy. Light snow early in the evening...then a chance of light snow in the late evening and overnight. Waves 1 to 3 feet. .THURSDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15 knots late in the afternoon. Partly sunny. A chance of light snow early in the morning. Waves 1 to 3 feet. .THURSDAY NIGHT...West winds 5 to 10 knots becoming southwest 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less. .FRIDAY...South winds 15 to 20 knots. Light snow until late afternoon...then light snow likely early in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy with a chance of light snow. Waves 1 to 3 feet. .SATURDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon and evening. Mostly cloudy with a chance of light snow. Waves 1 to 3 feet. .SUNDAY...Southwest winds 15 to 20 knots. Mostly cloudy. Waves 1 to 3 feet. .MONDAY...West winds 15 to 20 knots. Mostly cloudy. A chance of light snow. Waves 1 to 3 feet. $$ KDK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes