Great Lakes Forecast
Issued by NWS
Issued by NWS
267 FZUS63 KMQT 141338 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 938 AM EDT Fri Jun 14 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...Ridging of 30.1 inches builds over Lake Superior by this afternoon. This high pressure continues building to 30.2 inches as it moves over the central Great Lakes Saturday, continuing to shift east toward New England on Sunday. Deepening low pressure near 29.4 inches emerges out of the High Plains Saturday night, moving northeast towards Hudson Bay Sunday into Monday as it deepens to 29.0 inches. This low extends a 29.6 inch trough over Lake Superior Sunday night before weak ridging of 29.9 inches moves over Lake Superior from the Northern Plains Monday. A low pressure around 29.5 inches looks to move off the Colorado Rockies into the Northern Plains early next week. LSZ162-142145- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 938 AM EDT Fri Jun 14 2024 /838 AM CDT Fri Jun 14 2024/ .REST OF TODAY...Northeast winds 5 to 15 knots veering east in the afternoon, then backing northeast late. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots backing northeast after midnight, then veering east late. Waves calm to 2 feet. .SATURDAY...East winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon. A slight chance of showers by mid afternoon. Waves calm to 2 feet. .SATURDAY NIGHT...Southeast winds 10 to 20 knots. A chance of showers through midnight, then showers and a slight chance of thunderstorms after midnight. Waves building to 1 to 3 feet. .SUNDAY...East winds 10 to 20 knots. A chance of showers. Waves subsiding to calm to 2 feet. .SUNDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. A chance of showers and thunderstorms. Waves calm to 2 feet. .MONDAY...West winds 5 to 15 knots becoming northeast 10 to 20 knots. A chance of showers. A chance of thunderstorms. Showers likely. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots becoming southwest 15 to 25 knots. A chance of showers and thunderstorms. Waves building to 1 to 3 feet. $$ LSZ263-142145- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 938 AM EDT Fri Jun 14 2024 .REST OF TODAY...Northeast winds less than 10 knots increasing to 5 to 15 knots in the afternoon, then veering southeast late. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots veering south late. Waves calm to 2 feet. .SATURDAY...South winds 5 to 15 knots backing southeast late. Waves calm to 2 feet. .SATURDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to 20 knots after midnight. A chance of showers through midnight, then showers and a slight chance of thunderstorms after midnight. Waves building to 2 to 4 feet. .SUNDAY...Southeast winds 10 to 20 knots veering south by mid afternoon. A chance of showers. Waves subsiding to 1 to 3 feet. .SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after midnight. Waves subsiding to calm to 2 feet. .MONDAY...West winds 5 to 15 knots backing east. A chance of showers. Waves calm to 2 feet. .TUESDAY...Southeast winds 10 to 20 knots veering south. A chance of showers and thunderstorms. Waves building to 1 to 3 feet. $$ LSZ264-142145- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 938 AM EDT Fri Jun 14 2024 .REST OF TODAY...Northeast winds less than 10 knots increasing to 5 to 15 knots in the afternoon, then veering southeast late. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots. Waves calm to 2 feet. .SATURDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots late. Waves building to 1 to 3 feet. .SATURDAY NIGHT...South winds 10 to 20 knots backing southeast after midnight. A chance of showers. Waves building to 2 to 4 feet. .SUNDAY...Southeast winds 10 to 20 knots. A chance of showers. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after midnight. Waves subsiding to calm to 2 feet. .MONDAY...Southwest winds 5 to 15 knots backing southeast. A chance of showers. Waves calm to 2 feet. .TUESDAY...Southeast winds 5 to 15 knots becoming south 10 to 20 knots. A chance of showers. Waves building to 1 to 3 feet. $$ LSZ265-142145- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 938 AM EDT Fri Jun 14 2024 .REST OF TODAY...North winds 5 to 15 knots veering northeast in the afternoon, then veering southeast late. Waves calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .SATURDAY...South winds 10 to 20 knots backing southeast in the afternoon, then increasing to 15 to 25 knots late. Waves calm to 2 feet. .SATURDAY NIGHT...South winds 15 to 25 knots backing southeast after midnight. A slight chance of showers through midnight, then showers likely after midnight. Waves calm to 2 feet. .SUNDAY...Southeast winds 15 to 25 knots. Showers likely through early afternoon. A chance of thunderstorms. A chance of showers by mid afternoon. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .SUNDAY NIGHT...South winds 10 to 20 knots becoming southwest 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .MONDAY...Southwest winds 5 to 15 knots becoming south 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .TUESDAY...Southeast winds 10 to 20 knots veering south. A chance of showers. Waves calm to 2 feet. $$ LSZ266-142145- 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- 938 AM EDT Fri Jun 14 2024 .REST OF TODAY...North winds 5 to 15 knots backing west late. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots. Waves calm to 2 feet. .SATURDAY...South winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon, then backing southeast late. Waves building to 1 to 3 feet. .SATURDAY NIGHT...South winds 15 to 25 knots. A chance of showers. Waves building to 2 to 4 feet. .SUNDAY...Southeast winds 15 to 25 knots veering south by mid afternoon. Showers likely through early afternoon. A chance of showers by mid afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY NIGHT...South winds 10 to 20 knots becoming southwest 5 to 15 knots after midnight. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet. .MONDAY...Southwest winds 5 to 15 knots becoming south 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .TUESDAY...South winds 15 to 25 knots. A chance of showers. Waves building to 2 to 4 feet. $$ LSZ267-142145- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 938 AM EDT Fri Jun 14 2024 .REST OF TODAY...North winds 5 to 15 knots backing northwest in the afternoon. Waves calm to 2 feet. .TONIGHT...West winds 5 to 15 knots backing southeast after midnight, then veering south late. Waves calm to 2 feet. .SATURDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots in the afternoon. Waves calm to 2 feet. .SATURDAY NIGHT...Southeast winds 10 to 20 knots increasing to 15 to 25 knots after midnight. A chance of showers after midnight. Waves building to 1 to 3 feet. .SUNDAY...Southeast winds 15 to 25 knots. Showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SUNDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet. .MONDAY...South winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .TUESDAY...South winds 10 to 20 knots increasing to 15 to 25 knots. A chance of showers. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. $$ LSZ261-142145- MAFOR 1415/ Superior West 11100 12300 11200 12100 12300. Waves 1 foot or less. Superior North Central 11100 12300 11400 14410. Waves 1 to 2 feet. Superior South Central 11800 11200 11300 11310 14410. Waves 1 to 2 feet. Superior East 11800 11700 12600 11800 11300 11410 11400. Waves 2 feet or less. $$ GS Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes