FZUS63 KDTX 182101 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 401 PM EST Wed Feb 18 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...Precipitation continues to taper off as the line of rain drifts into the northern Great Lakes. Areas of fog linger overnight. Weaker flow expected Thursday, followed by potential for higher gusts on Friday with the next low pressure system. LCZ460-190515- Lake St Clair- 401 PM EST Wed Feb 18 2026 .TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to 15 knots early in the morning. Mostly cloudy. Areas of fog early in the evening. A chance of light rain in the evening. .THURSDAY...East winds 10 to 15 knots. Mostly cloudy. .THURSDAY NIGHT...East winds 15 to 20 knots. Light rain likely early in the evening...then light rain in the late evening and overnight. .FRIDAY...Southeast winds 15 to 20 knots becoming southwest 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Mostly cloudy. Light rain early in the morning...then a chance of light rain in the late morning and afternoon. A Small Craft Advisory may be needed. .FRIDAY NIGHT...West winds 15 to 20 knots. Mostly cloudy. .SATURDAY...West winds 10 to 15 knots diminishing to 5 to 10 knots in the evening. Mostly cloudy. .SUNDAY...North winds 15 to 20 knots. Mostly cloudy with a chance of light snow. .MONDAY...North winds 20 to 25 knots. Partly cloudy. Waves omitted due to ice coverage. $$ KGK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes