FZUS63 KMQT 200910 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 410 AM EST Wed Nov 20 2019 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 30.1 inch ridge will continue across the Upper Great Lakes through this evening. A 29.6 inch low pressure system is developing over the Central Plains and will move across the Mackinac Straits by Thursday evening as it deepens to 29.4 inches. By Friday the low exits into Quebec as a brief 30.1 inch ridge shifts over the region, and by Saturday a 29.7 inch low pressure trough will move into the region from a low centered over northern Manitoba and northern Ontario. The trough will remain steady over the region Sunday as another low works it's way east across the northern Canadian Plains. LSZ162-201715- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 410 AM EST Wed Nov 20 2019 /310 AM CST Wed Nov 20 2019/ .EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...West winds 5 to 15 knots backing southwest. A chance of rain. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots increasing to 10 to 20 knots late. Rain. Snow after midnight. Waves building to 1 to 3 feet. .THURSDAY...North winds 15 to 25 knots becoming northwest 20 to 30 knots by mid afternoon. Rain showers, possibly mixed with snow in the morning, then a chance of snow showers and drizzle in the afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .THURSDAY NIGHT...Northwest winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet. .FRIDAY...West winds 10 to 20 knots becoming southwest 15 to 25 knots in the afternoon. Waves subsiding to calm to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. .FRIDAY NIGHT...West winds 15 to 25 knots. Waves building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...Southwest winds 5 to 15 knots veering west. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ263-201715- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 410 AM EST Wed Nov 20 2019 .EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...West winds 5 to 15 knots backing southwest by mid afternoon. A slight chance of rain in the afternoon. Waves calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots backing east by midnight, then increasing to 10 to 20 knots late. A chance of rain in the evening, then rain, possibly mixed with snow after midnight. Waves building to 1 to 3 feet. .THURSDAY...North winds 15 to 25 knots increasing to 20 to 30 knots. Rain showers, possibly mixed with snow in the morning, then a chance of snow showers and drizzle likely in the afternoon. Waves building to 5 to 8 feet occasionally to 10 feet. .THURSDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. A slight chance of snow showers. Waves subsiding to 2 to 4 feet. .FRIDAY...West winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...West winds 20 to 30 knots. Waves building to 4 to 7 feet occasionally to 9 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...Southwest winds 10 to 20 knots veering west. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. $$ LSZ264-201715- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 410 AM EST Wed Nov 20 2019 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... .EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...West winds 5 to 15 knots backing southwest by mid afternoon. A slight chance of rain in the afternoon. Waves calm to 2 feet. .TONIGHT...Southwest winds 5 to 15 knots backing south by midnight, then becoming southeast 10 to 20 knots late. A chance of rain in the evening, then rain, possibly mixed with snow after midnight. Waves building to 2 to 4 feet. .THURSDAY...North winds 15 to 25 knots increasing to 20 to 30 knots. Rain showers in the morning. Snow showers. Drizzle likely in the afternoon. Waves building to 6 to 9 feet occasionally to 11 feet. .THURSDAY NIGHT...North winds 20 to 30 knots backing northwest after midnight. A slight chance of snow showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Northwest winds 10 to 20 knots becoming west 15 to 25 knots in the afternoon. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...West winds 15 to 25 knots. Waves building to 5 to 8 feet occasionally to 10 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...Southwest winds 5 to 15 knots veering west. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. $$ LSZ265-201715- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 410 AM EST Wed Nov 20 2019 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... .EARLY THIS MORNING...West winds 10 to 20 knots. Waves calm to 2 feet. .TODAY...West winds 10 to 20 knots becoming southwest 5 to 15 knots. A slight chance of. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots by midnight, then backing southeast late. A chance of rain in the evening, then rain after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...South winds 5 to 15 knots becoming north 15 to 25 knots by late morning, then increasing to gales to 35 knots by mid afternoon. Rain and snow showers. Drizzle in the afternoon. Waves subsiding to 1 to 3 feet, then building to 6 to 9 feet occasionally to 11 feet. .THURSDAY NIGHT...Northwest gales to 35 knots diminishing to 20 to 30 knots after midnight. A chance of snow showers. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .FRIDAY...Northwest winds 15 to 25 knots becoming west 10 to 20 knots in the afternoon. Waves subsiding to 1 to 3 feet. .FRIDAY NIGHT...West winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...West winds 10 to 20 knots backing southwest. Waves calm to 2 feet. $$ LSZ266-201715- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 410 AM EST Wed Nov 20 2019 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... .EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...West winds 5 to 15 knots backing southwest. A slight chance of rain in the afternoon. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots by midnight, then becoming southeast 15 to 25 knots late. A chance of rain in the evening, then rain after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...South winds 15 to 25 knots becoming north 20 to 30 knots by late morning, then increasing to gales to 35 knots by mid afternoon. Rain showers, possibly mixed with snow. Drizzle in the afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .THURSDAY NIGHT...North gales to 35 knots becoming northwest 20 to 30 knots after midnight. A chance of drizzle in the evening. A chance of snow showers. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .FRIDAY...Northwest winds 15 to 25 knots becoming west 10 to 20 knots in the afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .FRIDAY NIGHT...West winds 15 to 25 knots. Waves building to 5 to 8 feet occasionally to 10 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...Southwest winds 5 to 15 knots. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. $$ LSZ267-201715- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 410 AM EST Wed Nov 20 2019 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE THURSDAY NIGHT... .EARLY THIS MORNING...Southwest winds 10 to 20 knots. Waves calm to 2 feet. .TODAY...Southwest winds 10 to 20 knots. Waves calm to 2 feet. .TONIGHT...South winds 10 to 20 knots becoming southeast 15 to 25 knots late. A slight chance of rain in the evening, then rain after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...Southeast winds 15 to 25 knots veering south by late morning, then backing north by mid afternoon. Rain showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. .THURSDAY NIGHT...North gales to 35 knots backing northwest after midnight. Snow showers and drizzle likely in the evening, then a chance of snow showers after midnight. Waves building to 7 to 11 feet occasionally to 14 feet. .FRIDAY...Northwest winds 20 to 30 knots becoming west 15 to 25 knots in the afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .FRIDAY NIGHT...West winds 15 to 25 knots. Waves building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...West winds 15 to 25 knots becoming northwest 5 to 15 knots. Waves subsiding to 1 to 3 feet. .SUNDAY...Southwest winds 10 to 20 knots. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ261-201715- MAFOR 2010/ Superior West 13610 11500 11400 11316 11226 11216. Waves 1 foot or less today. Waves 2 feet or less building to 2 to 3 feet tonight. Superior North Central 13610 12510 11410 11416 11327. Waves 1 to 3 feet. Superior South Central 12610 12510 11400 11410 11420 11326. Waves 2 feet or less today. Waves 1 to 3 feet building to 2 to 4 feet tonight. Superior East 12600 12510 11500 11410 11420 11320. A chance of rain overnight. Waves 1 to 3 feet. $$ JAW Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes