####018011485#### FZUS63 KMQT 232000 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI Issued by National Weather Service Gaylord MI 400 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). LSZ162-240400- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 400 PM EDT Tue Apr 23 2024 /300 PM CDT Tue Apr 23 2024/ .LATE THIS AFTERNOON...East winds 15 to 25 knots. Isolated rain showers. Waves 4 to 8 feet occasionally to 10 feet. .TONIGHT...East winds 10 to 20 knots backing northeast after midnight. Waves subsiding to 3 to 5 feet occasionally to 7 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. $$ LSZ263-240400- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 400 PM EDT Tue Apr 23 2024 .LATE THIS AFTERNOON...Northeast winds 15 to 25 knots. Waves 5 to 9 feet occasionally to 11 feet. .TONIGHT...Northeast winds 10 to 20 knots. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then building to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...East winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots veering south late. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming east 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots veering south after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...Southeast winds 15 to 25 knots increasing to 20 to 30 knots by mid afternoon. A chance of rain. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast winds 20 to 30 knots becoming east 15 to 25 knots after midnight. Rain. Waves 3 to 6 feet occasionally to 8 feet. .SATURDAY...North winds 15 to 25 knots veering northeast. Rain. A chance of thunderstorms. A chance of rain. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast winds 20 to 30 knots. A chance of rain, then rain likely. Waves building to 4 to 8 feet occasionally to 10 feet. $$ LSZ264-240400- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 400 PM EDT Tue Apr 23 2024 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... .LATE THIS AFTERNOON...Northeast gales to 35 knots. Waves 8 to 11 feet occasionally to 14 feet subsiding to 7 to 10 feet occasionally to 13 feet. .TONIGHT...Northeast winds 20 to 30 knots diminishing to 10 to 20 knots. Waves subsiding to 5 to 8 feet occasionally to 10 feet, then building to 6 to 9 feet occasionally to 11 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. $$ LSZ265-240400- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 400 PM EDT Tue Apr 23 2024 .LATE THIS AFTERNOON...North winds 20 to 30 knots. Scattered snow showers, possibly mixed with rain. Waves 9 to 12 feet occasionally to 15 feet. .TONIGHT...Northeast winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots becoming east 5 to 15 knots in the afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots veering south after midnight. Waves building to 2 to 4 feet. .FRIDAY...Southeast winds 20 to 30 knots increasing to gales to 35 knots by mid afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast gales to 35 knots diminishing to 20 to 30 knots after midnight. Rain. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...South winds 20 to 30 knots backing north. Rain. A chance of thunderstorms. A chance of rain. Waves subsiding to 1 to 3 feet, then building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northeast winds 20 to 30 knots veering east. Rain likely. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ266-240400- 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- 400 PM EDT Tue Apr 23 2024 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... .LATE THIS AFTERNOON...North gales to 35 knots. Scattered snow showers, possibly mixed with rain. Waves 9 to 12 feet occasionally to 15 feet building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .TONIGHT...Northeast winds 20 to 30 knots diminishing to 15 to 25 knots late. Waves 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. $$ LSZ267-240400- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 400 PM EDT Tue Apr 23 2024 ...GALE WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .LATE THIS AFTERNOON...North gales to 35 knots. Scattered rain and snow showers. Waves 4 to 7 feet occasionally to 9 feet building to 7 to 10 feet occasionally to 13 feet. .TONIGHT...Northeast gales to 35 knots diminishing to 20 to 30 knots after midnight. Isolated snow showers through midnight. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY...Northeast winds 10 to 20 knots backing north in the afternoon, then becoming northwest 5 to 15 knots late. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots backing south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 10 to 20 knots backing southeast by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 15 to 25 knots backing southeast after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Southeast gales to 35 knots. A chance of rain through midnight, then rain after midnight. Waves 3 to 6 feet occasionally to 8 feet. .SATURDAY...South winds 20 to 30 knots becoming southwest 15 to 25 knots. Rain. Waves subsiding to 2 to 4 feet. .SUNDAY...Northeast winds 15 to 25 knots becoming east 20 to 30 knots. Rain likely. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ261-240400- MAFOR 2321/ Superior West 11130 14120 13210. Waves 5 to 8 feet subsiding to 3 to 6 feet tonight. Waves 3 to 5 feet subsiding to 2 to 4 feet Wednesday. Superior North Central...GALE WARNING IN EFFECT...11140 12130 12120 11110 11210 11310. Waves 7 to 11 feet subsiding to 4 to 7 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet Wednesday. Superior South Central...GALE WARNING IN EFFECT...11840 19847 12130 12120 12110 11200. Waves 9 to 13 feet subsiding to 6 to 9 feet tonight. Waves 5 to 7 feet subsiding to 2 to 3 feet Wednesday. Superior East...GALE WARNING IN EFFECT...11150 19156 11150 11140 13130 11110 11800. Waves 5 to 8 feet building to 6 to 10 feet tonight. Waves 4 to 7 feet subsiding to 1 to 3 feet Wednesday. $$ JPB Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes