Expires:202207032145;;610066 FZUS63 KMQT 031339 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 939 AM EDT Sun Jul 3 2022 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...Broad sfc high pressure of 30.2 inches will drift over the Great Lakes region today. As the high moves to the Mid- Atlantic states tonight, a 29.8 inch low pressure trough will develop northeast across the Northern Plains toward the Upper Mississippi Valley. This trough will develop farther into the northern Great Lakes on Monday. As the trough then aligns from the Central Plains to the Lower Great Lakes region during Tuesday, a broad 30.1 inch high pressure will build southeast across northern Ontario. As this high shifts toward southern Quebec on Wednesday, a 29.9 inch low pressure trough will move east to the Dakotas. This trough will cross Lake Superior on Thursday or Friday. In its wake, 30.2 inch high pressure will build southeast to northern Ontario. && LSZ162-032145- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 939 AM EDT Sun Jul 3 2022 /839 AM CDT Sun Jul 3 2022/ .REST OF TODAY...Northeast winds 5 to 15 knots veering east in the afternoon. A slight chance of showers and thunderstorms by mid afternoon. Waves calm to 2 feet. .TONIGHT...Northeast winds 10 to 20 knots. Showers likely and a chance of thunderstorms. Patchy fog after midnight. Waves calm to 2 feet. .MONDAY...Northeast winds 10 to 20 knots. Patchy fog through early afternoon. Showers likely through early afternoon. A chance of thunderstorms. A chance of showers by mid afternoon. Waves building to 1 to 3 feet. .MONDAY NIGHT...Northeast winds 10 to 20 knots. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet. .TUESDAY...Northeast winds 10 to 20 knots. Waves calm to 2 feet. .TUESDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to 2 feet. .WEDNESDAY...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...Southwest winds 5 to 15 knots backing northeast. Waves calm to 2 feet. $$