


Great Lakes Forecast
Issued by NWS
Issued by NWS
954 FZUS63 KDTX 300738 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 334 AM EDT MON JUN 30 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...A cold front is moving in the Western Great Lakes tonight and will move through the Central Great Lakes Tomorrow evening, triggering showers and thundestorms. Westerly winds up around 20 knots to follow for Tuesday. LCZ460-302000- Lake St Clair- 334 AM EDT MON JUN 30 2025 .TODAY...South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Partly sunny. A chance of showers and thunderstorms in the morning...then showers and thunderstorms likely in the afternoon. Waves 2 feet or less. .TONIGHT...Southwest winds 5 to 10 knots becoming west 10 to 15 knots after midnight...then diminishing to 5 to 10 knots early in the morning. Mostly cloudy. Showers and thunderstorms likely in the evening. Waves 2 feet or less. .TUESDAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .TUESDAY NIGHT...Northwest winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Clear. Waves 2 feet or less. .WEDNESDAY...West winds 5 to 10 knots. Sunny becoming mostly clear. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 10 knots. Clear. Waves 2 feet or less. .FRIDAY...Southeast winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. $$ CB Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes