Expires:202305282200;;213655 FZUS63 KMQT 281347 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 947 AM EDT Sun May 28 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...A 30.2 inch high pressure ridge will remain over the Great Lakes basin through Memorial Day as it gradually weakens to 30.0 inches. During Monday night and Tuesday, the ridge will drift east while a 29.7 inch trough over the Canadian Prairies also drifts east. The trough will weaken to 29.9 inches as it approaches Lake Superior on Wednesday and then crosses Lake Superior during Thursday. In its wake, 30.5 inch high pressure over Hudson Bay will extend a 30.1 inch ridge south into the Upper Great Lakes on Friday. LSZ261-282200- MAFOR 2815/ Superior West 11400 11200 11110 11210 11100 12200 11300. Waves 1 foot or less. Superior North Central 11500 11400 11300 11210 12310 11300 11400. Waves 2 feet or less. Superior South Central 13200 11300 11310 11300 11400 11300. Waves 1 foot or less. Superior East 11500 11600 11800 11200 12300 11200 11300. Waves 1 foot or less. $$ Rolfson Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes