Expires:202306092215;;823558 FZUS63 KMQT 091402 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1002 AM EDT Fri Jun 9 2023 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...Ridging at 29.9 inches is currently centered over northern Illinois shifts south today as a deepening 29.8 inch trough drops southwest across Ontario. This trough moves across Lake Superior tonight then stalls across the central Great Lakes through Sunday morning. North of this trough, a 30.2 inch high pressure builds across Ontario and Manitoba. By Sunday morning, a 29.7 inch low pressure develops over the Mid-Mississippi Valley then tracks into the Lower Great Lakes Sunday night. The low is expected to deepen to around 29.5 inches Monday night as it spins across the north-central Great Lakes. This low exits into Quebec Tuesday night as a Hudson Bay ridge builds to 30.1 inches. LSZ162-092215- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 1002 AM EDT Fri Jun 9 2023 /902 AM CDT Fri Jun 9 2023/ .REST OF TODAY...Southwest winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon. Waves calm to 2 feet. .TONIGHT...Southwest winds 5 to 15 knots veering north after midnight, then veering northeast late. A chance of showers and thunderstorms, mainly after midnight. Waves calm to 2 feet. .SATURDAY...Northeast winds 10 to 20 knots becoming east 15 to 25 knots in the afternoon, then becoming northeast 10 to 20 knots late. A chance of rain showers and a slight chance of thunderstorms, mainly in the morning. Waves building to 2 to 4 feet. .SATURDAY NIGHT...Northeast winds 5 to 15 knots increasing to 10 to 20 knots after midnight. Waves subsiding to calm to 2 feet. .SUNDAY...Northeast winds 10 to 20 knots becoming east 5 to 15 knots by mid afternoon. Waves building to 1 to 3 feet. .SUNDAY NIGHT...Northwest winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .MONDAY...West winds 5 to 15 knots increasing to 10 to 20 knots. Waves calm to 2 feet. .TUESDAY...Southwest winds 10 to 20 knots veering northwest. Waves calm to 2 feet. $$