Expires:202405140345;;152379 FZUS63 KDTX 131935 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 335 PM EDT Mon May 13 2024 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 frontal boundary has stalled across south central Michigan and will be the focal point for showers and thunderstorms across the Saginaw Bay and central to southern Lake Huron. High pressure, 30.00 inches, will build in across the northern Great Lakes lake tonight into Tuesday afternoon, which will transition the stationary front into a cold front, pushing it south of the Great Lakes by tomorrow afternoon. This will reinforce north to northeast flow over the open waters. LCZ460-140345- Lake St Clair- 335 PM EDT Mon May 13 2024 .TONIGHT...Southwest winds 10 to 15 knots diminishing to 5 to 10 knots late in the evening...then veering to the west after midnight veering to the north early in the morning. Partly cloudy with scattered light showers in the evening...then mostly cloudy after midnight. Waves 2 feet or less. .TUESDAY...Northeast winds 5 to 10 knots becoming north 10 to 15 knots late in the afternoon. Mostly cloudy with scattered light showers. Waves 2 feet or less. .TUESDAY NIGHT...North winds 10 to 15 knots. Mostly cloudy with a chance of light showers. Waves 1 to 3 feet. .WEDNESDAY...North winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly cloudy. Waves 1 to 3 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly clear. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 10 knots veering to the southeast in the afternoon...then increasing to 10 to 15 knots in the evening. Mostly sunny...then partly cloudy with a chance of showers in the evening. Waves 2 feet or less. .FRIDAY...Southwest winds 10 to 15 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 feet or less. .SATURDAY...Southeast winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. $$ AM Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes