Great Lakes Forecast
Issued by NWS
Issued by NWS
271 FZUS63 KDTX 212058 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 358 PM EST Thu Nov 21 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...Low pressure, 29.50 inches, is now over southern Lake Michigan and will continue to drift into the Ohio Valley tonight. Relatively light winds flip to the north tonight and increase to near gale force once again over southern Lake Huron on Friday. Rain and snow showers this evening transition to all showers for Friday and Saturday as the upper low is slow to depart. LCZ460-220500- Lake St Clair- 358 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST FRIDAY THROUGH FRIDAY EVENING... .TONIGHT...Northwest winds 5 to 10 knots increasing to 20 to 25 knots. Mostly cloudy. A chance of light showers in the evening...then a chance of light rain after midnight. Waves 2 feet or less. .FRIDAY...Northwest winds 20 to 25 knots with gusts to 30 knots. Cloudy with light rain likely. Waves 2 to 4 feet. .FRIDAY NIGHT...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late evening and overnight. Light rain. Waves 1 to 3 feet. .SATURDAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots early in the afternoon. Mostly cloudy. Waves 1 to 3 feet. .SATURDAY NIGHT...West winds 10 to 15 knots. Mostly cloudy. Waves 2 feet or less. .SUNDAY...Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the evening. Mostly cloudy. Waves 2 feet or less. .MONDAY...West winds 15 to 20 knots. Mostly cloudy with light rain likely. Waves 1 to 3 feet. .TUESDAY...West winds 20 to 25 knots. Partly cloudy. A chance of light rain. Waves 1 to 3 feet. $$ MV Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes