####018010574#### FZUS63 KMQT 240206 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1006 PM EDT Tue Apr 23 2024 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...30.3 inch high pressure over northern Ontario will build southeast and into the Great Lakes region Wednesday...and remain in place over the lower Lakes Thursday. A 29.2 inch low will develop over western portions of Kansas by Friday morning and track northeast toward Lake Superior on Saturday (weakening to 29.4 inches). The low fills to 29.8 inches on early Sunday morning over eastern Lake Superior as it continues to spin northeast. LSZ162-241015- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 1006 PM EDT Tue Apr 23 2024 /906 PM CDT Tue Apr 23 2024/ .REST OF TONIGHT...Northeast winds 10 to 20 knots veering east late. Waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to 4 feet. .WEDNESDAY...East winds 10 to 20 knots. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .THURSDAY...East winds 10 to 20 knots. Waves building to 2 to 4 feet. .THURSDAY NIGHT...East winds 10 to 20 knots veering southeast after midnight. Waves subsiding to 1 to 3 feet. .FRIDAY...East winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A chance of rain. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .FRIDAY NIGHT...East winds 20 to 30 knots becoming northeast 15 to 25 knots after midnight. Rain. Waves 2 to 4 feet. .SATURDAY...Northeast winds 15 to 25 knots increasing to 20 to 30 knots. Rain. A chance of rain. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northeast gales to 35 knots diminishing to 20 to 30 knots. A chance of rain, then rain likely. Waves building to 4 to 8 feet occasionally to 10 feet. $$ LSZ263-241015- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 1006 PM EDT Tue Apr 23 2024 .REST OF TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...East winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots veering south late. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming east 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots veering south after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...Southeast winds 15 to 25 knots increasing to 20 to 30 knots by mid afternoon. A chance of rain. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast winds 20 to 30 knots becoming east 15 to 25 knots after midnight. Rain. Waves 3 to 6 feet occasionally to 8 feet. .SATURDAY...North winds 15 to 25 knots veering northeast. Rain. A chance of thunderstorms. A chance of rain. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast winds 20 to 30 knots. A chance of rain, then rain likely. Waves building to 4 to 8 feet occasionally to 10 feet. $$ LSZ264-241015- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1006 PM EDT Tue Apr 23 2024 .REST OF TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves 5 to 8 feet occasionally to 10 feet subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...Northeast winds 10 to 20 knots veering southeast late. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet. .THURSDAY...South winds 10 to 20 knots becoming southeast 15 to 25 knots by mid afternoon. Waves building to 1 to 3 feet. .THURSDAY NIGHT...Southeast winds 20 to 30 knots veering south after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY NIGHT...Southeast gales to 35 knots diminishing to 20 to 30 knots after midnight. Rain. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...Southeast winds 20 to 30 knots backing north. Rain. A chance of thunderstorms. A chance of rain. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast gales to 35 knots veering east. A chance of rain, then rain likely. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ265-241015- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 1006 PM EDT Tue Apr 23 2024 .REST OF TONIGHT...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots late. Waves 8 to 11 feet occasionally to 14 feet subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots becoming east 5 to 15 knots in the afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots veering south after midnight. Waves building to 2 to 4 feet. .FRIDAY...Southeast winds 20 to 30 knots increasing to gales to 35 knots by mid afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast gales to 35 knots diminishing to 20 to 30 knots after midnight. Rain. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...South winds 20 to 30 knots backing north. Rain. A chance of thunderstorms. A chance of rain. Waves subsiding to 1 to 3 feet, then building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northeast winds 20 to 30 knots veering east. Rain likely. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ266-241015- 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- 1006 PM EDT Tue Apr 23 2024 .REST OF TONIGHT...Northeast winds to 30 knots with a few gale force gusts to 35 knots possible diminishing to 15 to 25 knots. Waves 8 to 11 feet occasionally to 14 feet subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon, then becoming north less than 10 knots late. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 20 to 30 knots. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY NIGHT...Southeast gales to 35 knots. A chance of rain through midnight, then rain after midnight. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...South winds 20 to 30 knots backing north. Rain. A chance of rain. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast winds 20 to 30 knots veering east. A chance of rain, then rain likely. Waves building to 4 to 7 feet occasionally to 9 feet. $$ LSZ267-241015- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1006 PM EDT Tue Apr 23 2024 ...GALE WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .REST OF TONIGHT...Northeast gales to 35 knots diminishing to 15 to 25 knots. Isolated snow showers by late evening. Waves 8 to 11 feet occasionally to 14 feet subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots backing north in the afternoon, then becoming northwest 5 to 15 knots late. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots backing south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 10 to 20 knots backing southeast by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 15 to 25 knots backing southeast after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast gales to 35 knots. A chance of rain through midnight, then rain after midnight. Waves 3 to 6 feet occasionally to 8 feet. .SATURDAY...South winds 20 to 30 knots becoming southwest 15 to 25 knots. Rain. Waves subsiding to 2 to 4 feet. .SUNDAY...Northeast winds 15 to 25 knots becoming east 20 to 30 knots. Rain likely. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ261-241015- MAFOR 2403/ Superior West 12120 13210 11310 11210 11200. Waves 3 to 6 feet overnight subsiding to 1 to 4 feet Wednesday and Wednesday evening. Superior North Central 11130 11120 12110 11200 12300 11310. Waves 5 to 8 feet overnight. Waves 3 to 6 feet subsiding to 1 to 2 feet Wednesday and Wednesday evening. Superior South Central 11130 12120 11110 11100 12200 11300. Waves 6 to 10 feet overnight. Waves 5 to 7 feet subsiding to 1 to 3 feet Wednesday and Wednesday evening. Superior East...GALE WARNING IN EFFECT...11150 12130 11120 11100 12800 11700. Waves 6 to 10 feet subsiding to 5 to 8 feet overnight. Waves 4 to 7 feet subsiding to 1 to 3 feet Wednesday. Waves 1 foot or less Wednesday evening. $$ JSS Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes