FZUS63 KMQT 120137 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 937 PM EDT Sat Jul 11 2020 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 ridging will be nudging southward into northern Ontario tonight. This high will extend a 30.0 inch ridge over the Upper Great Lakes Sunday afternoon through Monday. A 29.7 inch trough will lift northeastward across Lake Superior late Tuesday into early Wednesday, followed by 30.0 inch ridging returning by Thursday. LSZ162-120945- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 937 PM EDT Sat Jul 11 2020 /837 PM CDT Sat Jul 11 2020/ .REST OF TONIGHT...East winds 5 to 15 knots backing northeast after midnight, then backing northwest late. Waves calm to 2 feet. .SUNDAY...West winds 5 to 15 knots backing south in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...Southeast winds 5 to 15 knots backing east after midnight. Waves calm to 2 feet. .MONDAY...East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...East winds 10 to 20 knots veering south after midnight. Showers likely and a chance of thunderstorms after midnight. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .TUESDAY...Southwest winds 10 to 20 knots. Showers likely and a chance of thunderstorms. Waves subsiding to calm to 2 feet. .TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet. .WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...Southwest winds 10 to 20 knots diminishing to 5 to 15 knots. Waves calm to 2 feet. $$ LSZ263-120945- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 937 PM EDT Sat Jul 11 2020 .REST OF TONIGHT...Northeast winds 5 to 15 knots backing northwest late. Waves calm to 2 feet. .SUNDAY...Northwest winds 5 to 15 knots backing southwest late. Waves calm to 2 feet. .SUNDAY NIGHT...Southwest winds 5 to 15 knots veering west after midnight, then becoming southeast less than 10 knots late. Waves calm to 2 feet. .MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY NIGHT...Southeast winds 10 to 20 knots veering south after midnight. A chance of showers after midnight. Waves building to 1 to 3 feet. .TUESDAY...South winds 10 to 20 knots veering southwest by mid afternoon. Showers likely and a chance of thunderstorms. Waves subsiding to calm to 2 feet. .TUESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. A chance of showers and thunderstorms through midnight. Waves calm to 2 feet. .WEDNESDAY...Southwest winds 10 to 20 knots diminishing to 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...Southwest winds 10 to 20 knots. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ264-120945- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 937 PM EDT Sat Jul 11 2020 .REST OF TONIGHT...North winds 5 to 15 knots backing northwest late. Waves calm to 2 feet building to 1 to 3 feet, then subsiding to calm to 2 feet. .SUNDAY...Northwest winds 5 to 15 knots backing west in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots diminishing to less than 10 knots late. Waves calm to 2 feet. .MONDAY...South winds less than 10 knots becoming southeast 5 to 15 knots by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...Southeast winds 5 to 15 knots. A chance of showers after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots. Showers likely and a chance of thunderstorms. Waves building to 1 to 3 feet. .TUESDAY NIGHT...South winds 5 to 15 knots veering west after midnight. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet. .WEDNESDAY...West winds 5 to 15 knots backing southwest. Waves calm to 2 feet. .THURSDAY...Southwest winds 5 to 15 knots. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ265-120945- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 937 PM EDT Sat Jul 11 2020 .REST OF TONIGHT...North winds 10 to 20 knots backing northwest after midnight. Waves calm to 2 feet. .SUNDAY...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY...West winds 5 to 15 knots backing east by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to 20 knots after midnight. Waves calm to 2 feet. .TUESDAY...South winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A chance of showers through early afternoon. A chance of thunderstorms. Showers likely by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...South winds 10 to 20 knots veering west after midnight. Showers likely through midnight. A chance of thunderstorms. A chance of showers after midnight. Waves calm to 2 feet. .WEDNESDAY...West winds 10 to 20 knots becoming southwest 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet. $$ LSZ266-120945- 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- 937 PM EDT Sat Jul 11 2020 .REST OF TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to 20 knots after midnight, then backing northwest late. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...Northwest winds 10 to 20 knots. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest winds 5 to 15 knots backing west late. Waves subsiding to calm to 2 feet. .MONDAY...Northwest winds less than 10 knots becoming east 5 to 15 knots by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...South winds 10 to 20 knots. A chance of showers through early afternoon, then showers likely and a chance of thunderstorms by mid afternoon. Waves building to 1 to 3 feet. .TUESDAY NIGHT...South winds 10 to 20 knots. Showers likely through midnight. A chance of thunderstorms. A chance of showers after midnight. Waves subsiding to calm to 2 feet. .WEDNESDAY...West winds 10 to 20 knots becoming southwest 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet. $$ LSZ267-120945- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 937 PM EDT Sat Jul 11 2020 .REST OF TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to 20 knots after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...Northwest winds 10 to 20 knots increasing to 15 to 25 knots late. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves subsiding to calm to 2 feet. .MONDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY NIGHT...East winds 5 to 15 knots veering southeast after midnight. Waves calm to 2 feet. .TUESDAY...Southeast winds 10 to 20 knots veering south by mid afternoon. A chance of showers. Waves building to 1 to 3 feet. .TUESDAY NIGHT...South winds 10 to 20 knots. Showers likely and a chance of thunderstorms. Waves 1 to 3 feet. .WEDNESDAY...West winds 10 to 20 knots becoming southwest 5 to 15 knots. A chance of showers. Waves subsiding to calm to 2 feet. .THURSDAY...Southwest winds 5 to 15 knots becoming south 10 to 20 knots. Waves calm to 2 feet. $$ LSZ261-120945- MAFOR 1203/ Superior West 11100 11800 12700 11500 13400. Waves 1 foot or less. Superior North Central 12810 13710 13610. Waves 1 to 3 feet. Superior South Central 11720 15710 11600. Waves 1 to 3 feet overnight and Sunday. Waves 2 feet or less Sunday evening. Superior East 11720 11820 13710 12720 11710. Waves 2 to 4 feet. $$ JH Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes