Great Lakes Forecast
Issued by NWS
Issued by NWS
408 FZUS63 KDTX 052013 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 313 PM EST Thu Mar 5 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...Weak low pressure, 30.00 inches, lifts across the Ohio Valley and tracks along the southern shore of Lake Erie today. This brings showers and areas of fog to the southern waterways, with light ENE flow. A stronger low, 29.40 inches, will move into the northern Great Lakes by Saturday providing an uptick in winds and showers out ahead of it. Potential exists for some thunderstorms. The system`s cold front should pass through the central Great Lakes Saturday afternoon/evening leading to drier conditions for the rest of the weekend. LCZ460-060415- Lake St Clair- 313 PM EST Thu Mar 5 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST FRIDAY... .TONIGHT...East winds 5 to 10 knots becoming light and variable. Cloudy. Scattered light showers early in the evening. Areas of dense fog. .FRIDAY...Southeast winds 5 to 10 knots. Cloudy. Areas of dense fog early in the morning...then patchy dense fog in the late morning and afternoon. .FRIDAY NIGHT...South winds 10 to 15 knots. Mostly cloudy. A chance of light rain. .SATURDAY...Southwest winds 15 to 20 knots. Light rain until late afternoon...then light rain likely early in the afternoon. .SATURDAY NIGHT...West winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly cloudy becoming partly cloudy. .SUNDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon and evening. Mostly clear in the morning then clearing. .MONDAY...Southwest winds 15 to 20 knots. Clear. .TUESDAY...South winds 20 to 25 knots. Light rain. Waves omitted due to ice coverage. $$ KDK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes