Expires:202406140345;;959191 FZUS63 KMQT 131941 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 341 PM EDT Thu Jun 13 2024 For waters beyond 5 nautical miles of shore on Lake Superior. 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 29.7 inch trough over Lake Superior this afternoon gives way to ridging the rest of today through Friday, with the ridging building to 30.1 inches over the lake by Friday afternoon. This high pressure continues building to 30.2 inches as it moves over the central Great Lakes Saturday, and continues shifting east toward New England on Sunday. Deepening low pressure near 29.4 inches emerges out of the High Plains Saturday night, moving northeast towards Hudson Bay Sunday into Monday as it deepens to 29.0 inches. This low extends a 29.6 inch trough over Lake Superior Sunday night before weak ridging of 29.9 inches moves over Lake Superior from the Northern Plains Monday. A low pressure of at least 29.5 inches looks to move off the Colorado Rockies into the Northern Plains early next week. LSZ265-140345- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 341 PM EDT Thu Jun 13 2024 .LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. A slight chance of showers and thunderstorms. Waves calm to 2 feet. .TONIGHT...Northwest winds 5 to 15 knots backing west after midnight. Waves calm to 2 feet. .FRIDAY...North winds 5 to 15 knots veering southeast late. Waves calm to 2 feet. .FRIDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet. .SATURDAY...South winds 10 to 20 knots becoming southeast 15 to 25 knots by mid afternoon. Waves calm to 2 feet. .SATURDAY NIGHT...South winds 15 to 25 knots backing southeast after midnight. A chance of showers. Waves calm to 2 feet. .SUNDAY...Southeast winds 15 to 25 knots. Showers likely through early afternoon. A chance of thunderstorms. A chance of showers by mid afternoon. Waves building to 1 to 3 feet. .SUNDAY NIGHT...South winds 10 to 20 knots. Waves subsiding to calm to 2 feet. .MONDAY...Southwest winds 10 to 20 knots backing south. A chance of showers. Waves calm to 2 feet. .TUESDAY...Southeast winds 10 to 20 knots veering south. A chance of showers. Waves calm to 2 feet. $$