####018012296#### FZUS63 KMQT 300810 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 410 AM EDT Tue Apr 30 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 29.8 inch low pressure is currently over Lake Superior and tracks east across Ontario while weakening today. In its wake, a weak high pressure ridge of 29.9 inches shifts east across Lake Superior. By this evening, a 29.6 inch low pressure will be positioned over southern Minnesota and is expected to track northeast across western Lake Superior tonight. Its unclear if this low pressure deepens or weakens as it tracks across the lake over Ontario by Wednesday evening. Ridging builds to 30.1 inches over the lake Wednesday night and Thursday ahead of a 29.6 inch low pressure tracking across the Upper Mississippi Valley Thursday and Thursday night then to northwestern Ontario on Friday. A weak 29.9 inch trough pivots across the lake on Saturday ahead of ridging that builds to 30.1 inches over the Great Lakes Basin on Sunday. LSZ162-301615- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 410 AM EDT Tue Apr 30 2024 /310 AM CDT Tue Apr 30 2024/ .EARLY THIS MORNING...West winds 10 to 20 knots. Patchy fog. Waves 2 to 4 feet. .TODAY...West winds 10 to 20 knots becoming southwest 5 to 15 knots in the afternoon. Waves subsiding to calm to 2 feet. .TONIGHT...East winds 10 to 20 knots increasing to 15 to 25 knots after midnight, then backing northeast late. Rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY...West winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon, then diminishing to 10 to 20 knots late. A chance of rain showers through early afternoon. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY NIGHT...West winds 5 to 15 knots veering northeast after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...Northeast winds 15 to 25 knots increasing to 20 to 30 knots by mid afternoon. A chance of rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .THURSDAY NIGHT...East winds 20 to 30 knots. Rain showers likely. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .FRIDAY...Southwest winds 20 to 30 knots becoming west 15 to 25 knots. A chance of rain showers. Waves subsiding to calm to 2 feet. .SATURDAY...Southwest winds 10 to 20 knots veering north. A chance of rain showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ263-301615- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 410 AM EDT Tue Apr 30 2024 .EARLY THIS MORNING...West winds 10 to 20 knots. Patchy fog. A slight chance of rain showers. Waves 3 to 5 feet occasionally to 7 feet. .TODAY...West winds 5 to 15 knots backing southwest late. Patchy fog through early afternoon. Waves subsiding to calm to 2 feet. .TONIGHT...East winds 5 to 15 knots increasing to 15 to 25 knots. A chance of rain showers through midnight, then rain showers after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY...Southwest winds 15 to 25 knots becoming west 20 to 30 knots in the afternoon, then diminishing to 15 to 25 knots late. A chance of rain showers through early afternoon. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY NIGHT...West winds 5 to 15 knots veering northwest after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...East winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A chance of rain showers by mid afternoon. Waves building to 2 to 4 feet. .THURSDAY NIGHT...East winds 15 to 25 knots increasing to 20 to 30 knots after midnight. Rain showers likely. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southwest winds 20 to 30 knots diminishing to 15 to 25 knots. A chance of rain showers. Waves subsiding to 1 to 3 feet. .SATURDAY...Southwest winds 5 to 15 knots becoming west 10 to 20 knots. A chance of rain showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ264-301615- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 410 AM EDT Tue Apr 30 2024 .EARLY THIS MORNING...East winds 10 to 20 knots. Patchy fog. A slight chance of rain showers. Waves 3 to 6 feet occasionally to 8 feet. .TODAY...West winds 5 to 15 knots. Patchy fog through early afternoon. A slight chance of rain showers through early afternoon. Waves subsiding to calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots becoming east 10 to 20 knots after midnight, then increasing to 15 to 25 knots late. Rain showers after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY...Southeast winds 15 to 25 knots becoming west 20 to 30 knots in the afternoon. Rain showers likely through early afternoon. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 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...Northeast winds 5 to 15 knots becoming east 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...East winds 20 to 30 knots. A chance of rain showers through midnight. Rain showers likely after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southwest winds 20 to 30 knots diminishing to 15 to 25 knots. A chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .SATURDAY...Southwest winds 10 to 20 knots veering west. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ265-301615- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 410 AM EDT Tue Apr 30 2024 .EARLY THIS MORNING...West winds 5 to 15 knots. Patchy fog. Waves 1 to 3 feet. .TODAY...West winds 10 to 20 knots veering northwest late. Patchy fog through early afternoon. Waves subsiding to calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots increasing to 15 to 25 knots. Rain showers after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...Southeast winds 10 to 20 knots becoming west to 30 knots with a few gale force gusts to 35 knots possible in the afternoon. A chance of rain showers through early afternoon. Waves subsiding to 2 to 4 feet, then building to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. A chance of rain showers by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...East winds 10 to 20 knots becoming southeast 15 to 25 knots after midnight. Rain showers likely and a chance of thunderstorms. Waves building to 2 to 4 feet. .FRIDAY...Southwest winds 15 to 25 knots diminishing to 10 to 20 knots. A chance of showers. Waves subsiding to calm to 2 feet. .SATURDAY...Southwest winds 10 to 20 knots backing southeast. A chance of rain showers. Waves building to 1 to 3 feet. $$ LSZ266-301615- 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- 410 AM EDT Tue Apr 30 2024 .EARLY THIS MORNING...Southwest winds 5 to 15 knots. Patchy fog. A slight chance of rain showers. Waves 2 to 4 feet. .TODAY...West winds 10 to 20 knots becoming northwest 5 to 15 knots late. Patchy fog through early afternoon. Waves subsiding to 1 to 3 feet. .TONIGHT...East winds 5 to 15 knots veering southeast after midnight, then increasing to 10 to 20 knots late. Rain showers after midnight. Waves subsiding to calm to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...Southeast winds 15 to 25 knots becoming west to 30 knots with a few gale force gusts to 35 knots possible in the afternoon. A chance of rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY NIGHT...West winds 10 to 20 knots becoming northwest 5 to 15 knots after midnight. Waves subsiding to 1 to 3 feet. .THURSDAY...North winds 5 to 15 knots becoming east 10 to 20 knots by mid afternoon. A chance of rain showers by mid afternoon. Waves subsiding to calm to 2 feet. .THURSDAY NIGHT...East winds 15 to 25 knots becoming southeast 20 to 30 knots after midnight. Rain showers likely and a chance of thunderstorms. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...South winds 20 to 30 knots becoming southwest 15 to 25 knots. A chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 1 to 3 feet. .SATURDAY...Southwest winds 10 to 20 knots becoming east 15 to 25 knots. A chance of rain showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ267-301615- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 410 AM EDT Tue Apr 30 2024 .EARLY THIS MORNING...South winds 5 to 15 knots. Areas of fog. A chance of rain showers. Waves calm to 2 feet. .TODAY...West winds 5 to 15 knots increasing to 15 to 25 knots in the afternoon, then diminishing to 10 to 20 knots late. Areas of fog through early afternoon. A slight chance of rain showers through early afternoon. Waves building to 1 to 3 feet. .TONIGHT...West winds 5 to 15 knots backing southeast after midnight, then increasing to 10 to 20 knots late. Rain showers after midnight. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .WEDNESDAY...Southeast winds 15 to 25 knots veering west in the afternoon, then increasing to 20 to 30 knots late. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .WEDNESDAY NIGHT...West winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...Northwest winds 10 to 20 knots veering east by mid afternoon. Waves subsiding to calm to 2 feet. .THURSDAY NIGHT...East winds 10 to 20 knots becoming southeast 20 to 30 knots after midnight. Rain showers likely. A chance of thunderstorms after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 15 to 25 knots becoming south 10 to 20 knots. Rain showers likely. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to calm to 2 feet. .SATURDAY...Southwest winds 10 to 20 knots backing east. A chance of rain showers. Waves calm to 2 feet. $$ LSZ261-301615- MAFOR 3009/ Superior West 11620 12610 11510 11400 11210 11226 11236. Waves 2 to 4 feet today. Waves 1 to 2 feet building to 4 to 6 feet tonight. Superior North Central 11310 12720 11620 11610 11400 11310 11320. A chance of rain showers early this morning. Waves 3 to 5 feet subsiding to 2 to 3 feet today. Waves 1 to 3 feet tonight. Superior South Central 11610 12630 11720 11810 11210 11310 11320. A chance of rain showers overnight. Waves 1 to 3 feet. Superior East 11410 11610 12620 11610 11600 11400 11310. A chance of rain showers this morning. Waves 1 to 3 feet. $$ EK Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018004695#### FZUS61 KCLE 300813 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 413 AM EDT Tue Apr 30 2024 For waters beyond five nautical miles of shore on Lake Erie Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS... A weak cold front will move across the lake this morning. Behind the front, a ridge averaging 30.00 inches builds from the west through Thursday. A warm front will lift across the lake Thursday night. Another cold front moves eastward across the lake Friday night into Saturday. LEZ162>164-301445- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- 413 AM EDT Tue Apr 30 2024 .TODAY...Southwest winds 5 to 10 knots becoming west. A chance of showers with a slight chance of thunderstorms early. Waves 1 foot or less. .TONIGHT...West winds 10 knots or less becoming southwest. Waves 1 foot or less. .WEDNESDAY...South winds 10 knots or less becoming southwest. Waves 1 foot or less. .WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northwest. Waves 1 foot or less. .THURSDAY...Northeast winds 5 to 10 knots becoming southeast. Waves 2 feet or less. .FRIDAY...Southeast winds around 10 knots becoming northwest. A chance of showers during the day, then a chance of showers and thunderstorms Friday night. Waves 1 to 2 feet. .SATURDAY...Northeast winds 5 to 10 knots becoming south. A chance of showers. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ165>167-301445- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border- 413 AM EDT Tue Apr 30 2024 .TODAY...Southwest winds 5 to 10 knots. Showers likely with a slight chance of thunderstorms early, then a chance of showers with a slight chance of thunderstorms late this morning. Waves 1 to 2 feet. .TONIGHT...Southwest winds 10 knots or less becoming west. Waves 2 feet or less. .WEDNESDAY...Southwest winds 10 knots or less becoming south. Waves 1 foot or less. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest. Waves 1 foot or less. .THURSDAY...North winds 5 to 15 knots becoming east. Waves 2 feet or less. .FRIDAY...Southeast winds 10 to 15 knots. A chance of showers during the day, then a chance of showers and thunderstorms Friday night. Waves 1 to 2 feet. .SATURDAY...East winds around 10 knots becoming south. A chance of showers. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LEZ061-168-169-301445- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border-Geneva-on-the- Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border- 413 AM EDT Tue Apr 30 2024 .TODAY...Southwest winds 5 to 10 knots. Showers likely with a chance of thunderstorms early, then showers likely with a slight chance of thunderstorms late this morning. A chance of showers with a slight chance of thunderstorms early this afternoon. Waves 2 feet or less. .TONIGHT...Southwest winds 10 knots or less becoming west. Waves 1 to 2 feet. .WEDNESDAY...Southwest winds 10 knots or less becoming south. Waves 1 foot or less. .WEDNESDAY NIGHT...South winds 5 to 10 knots becoming west. Waves 1 foot or less. .THURSDAY...West winds 5 to 10 knots becoming east. Waves 1 foot or less. .FRIDAY...East winds around 10 knots becoming southeast. A chance of showers during the day, then a chance of showers and thunderstorms Friday night. Waves 2 feet or less. .SATURDAY...Southeast winds 10 to 15 knots becoming south. Showers likely during the day, then a chance of showers Saturday night. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LEZ161-301445- MAFOR 3009/ ERIE WEST 1/3 12500 15600. A chance of showers this morning. Waves 2 feet or less. ERIE CENTRAL 1/3 11406 14500 11500 12600. Waves 2 feet or less. ERIE EAST 1/3 11400 12506 14500 11600. A chance of thunderstorms this morning. Waves 2 feet or less. $$