Great Lakes Forecast
Issued by NWS
Issued by NWS
064 FZUS63 KMQT 281957 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 357 PM EDT Tue May 28 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...A 30.2 inch high pressure will build over the Northern Plains today. This high parks over the Upper Great Lakes Wednesday through Thursday. The high slowly move towards the rest of the lower Great Lakes region beginning late Thursday, reaching the Mid Atlantic states by Saturday night at 30.2 inches. Ridging over Lake Superior weakens to 29.9 inches by Saturday night and remains in place through Sunday. On Sunday night, a 29.6 low pressure lifting up through the Northern Plains moves towards Thunder Bay. LSZ162-290400- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 357 PM EDT Tue May 28 2024 /257 PM CDT Tue May 28 2024/ .LATE THIS AFTERNOON...North winds 5 to 15 knots. A chance of showers and a slight chance of thunderstorms. Waves calm to 2 feet. .TONIGHT...North winds 5 to 15 knots. A slight chance of showers and thunderstorms through midnight. Waves calm to 2 feet. .WEDNESDAY...Northeast winds 5 to 15 knots veering east in the afternoon. Waves calm to 2 feet. .WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...East winds 10 to 20 knots veering south after midnight. A chance of showers after midnight. Waves calm to 2 feet. .FRIDAY...Southwest winds 10 to 20 knots. A chance of showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .FRIDAY NIGHT...Southwest winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .SATURDAY...Southwest winds 10 to 20 knots veering west. A chance of showers. Waves calm to 2 feet. .SUNDAY...East winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. $$ LSZ263-290400- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 357 PM EDT Tue May 28 2024 .LATE THIS AFTERNOON...North winds 5 to 15 knots. A slight chance of showers. Waves calm to 2 feet. .TONIGHT...North winds 5 to 15 knots. Waves calm to 2 feet. .WEDNESDAY...Northeast winds 5 to 15 knots veering east late. Waves calm to 2 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots becoming west less than 10 knots after midnight, then backing southeast late. Waves calm to 2 feet. .THURSDAY...Southeast winds 5 to 15 knots backing east by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves building to 1 to 3 feet. .FRIDAY...Southwest winds 10 to 20 knots. A chance of showers. Waves 1 to 3 feet. .FRIDAY NIGHT...Southwest winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .SATURDAY...Southwest winds 5 to 15 knots. A chance of showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .SUNDAY...Southwest winds 5 to 15 knots backing southeast. A chance of showers. Waves calm to 2 feet. $$ LSZ264-290400- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 357 PM EDT Tue May 28 2024 .LATE THIS AFTERNOON...North winds 5 to 15 knots. Waves calm to 2 feet. .TONIGHT...North winds 5 to 15 knots veering northeast late. Waves calm to 2 feet. .WEDNESDAY...Northeast winds 5 to 15 knots backing north in the afternoon, then backing southwest late. Waves calm to 2 feet. .WEDNESDAY NIGHT...West winds 5 to 15 knots diminishing to less than 10 knots after midnight, then backing southwest late. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots backing southeast by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves building to 1 to 3 feet. .FRIDAY...South winds 5 to 15 knots veering southwest by mid afternoon. A chance of showers. Waves 1 to 3 feet. .FRIDAY NIGHT...Southwest winds 5 to 15 knots backing south after midnight. Waves subsiding to calm to 2 feet. .SATURDAY...South winds 5 to 15 knots veering southwest. A chance of showers. Waves calm to 2 feet. .SUNDAY...Southwest winds 5 to 15 knots backing southeast. A chance of showers. Waves calm to 2 feet. $$ LSZ265-290400- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 357 PM EDT Tue May 28 2024 .LATE THIS AFTERNOON...North winds 10 to 20 knots. Waves calm to 2 feet. .TONIGHT...North winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves calm to 2 feet. .WEDNESDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .WEDNESDAY NIGHT...West winds 5 to 15 knots becoming southwest less than 10 knots late. Waves calm to 2 feet. .THURSDAY...Southeast winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet. .FRIDAY...South winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet. .SATURDAY...South winds 10 to 20 knots becoming southwest 5 to 15 knots. A chance of showers. Waves calm to 2 feet. .SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to 20 knots. A chance of showers. Waves calm to 2 feet. $$ LSZ266-290400- 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- 357 PM EDT Tue May 28 2024 .LATE THIS AFTERNOON...North winds 10 to 20 knots. Waves 1 to 3 feet. .TONIGHT...North winds 10 to 20 knots becoming northeast 5 to 15 knots late. Waves subsiding to calm to 2 feet. .WEDNESDAY...Northeast winds 5 to 15 knots backing northwest late. Waves calm to 2 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots backing southeast by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...Southeast winds 10 to 20 knots veering south after midnight. Waves calm to 2 feet. .FRIDAY...South winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet. .SATURDAY...South winds 10 to 20 knots becoming southwest 5 to 15 knots. A chance of showers. Waves calm to 2 feet. .SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to 20 knots. A chance of showers. Waves calm to 2 feet. $$ LSZ267-290400- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 357 PM EDT Tue May 28 2024 .LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Waves 1 to 3 feet. .TONIGHT...North winds 10 to 20 knots veering northeast late. Waves subsiding to calm to 2 feet. .WEDNESDAY...North winds 10 to 20 knots backing northwest in the afternoon. Waves building to 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...Northwest winds 5 to 15 knots veering north by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet. .FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet. .FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet. .SATURDAY...South winds 10 to 20 knots. A chance of showers. Waves calm to 2 feet. .SUNDAY...Southwest winds 10 to 20 knots backing southeast. Waves calm to 2 feet. $$ LSZ261-290400- MAFOR 2821/ Superior West 14800 11810 11100 11200 11300. A chance of rain showers this evening. Waves 1 foot or less. Superior North Central 14810 11110 11100 11800 11700. Waves 2 feet or less. Superior South Central 14810 11810 13800. Waves 1 to 3 feet. Superior East 14810 11110 11100 11800 11710. Waves 1 to 3 feet. $$ TAP Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes