Expires:202207032145;;610072 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. && LSZ261-032145- MAFOR 0315/ Superior West 12200 12210 14116. A chance of thunderstorms overnight and Monday morning. Waves 2 feet or less. Superior North Central 11600 11500 13310 12316 11320. Waves 2 feet or less this afternoon and tonight. Waves 1 to 3 feet Monday morning. Superior South Central 11800 11200 12310 14316. Waves 2 feet or less this afternoon and tonight. Waves 1 to 3 feet Monday morning. Superior East 11600 11700 11200 12300 13316. Waves 1 to 2 feet. $$ WFO MQT Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes