911 FZUS63 KDTX 240713 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 313 AM EDT Mon Aug 24 2026 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...Post-frontal northwest flow maintains breezy conditions today. Lingering chances for some showers this morning with showers tapering off tonight as high pressure, 30.10 inches, begins to build in. LCZ460-242000- Lake St Clair- 313 AM EDT Mon Aug 24 2026 .TODAY...West winds 15 to 20 knots becoming northwest 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northwest winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Partly cloudy. Waves 2 feet or less. .TUESDAY...Northwest winds 5 to 10 knots early in the morning becoming light and variable. Mostly sunny. Waves 2 feet or less. .TUESDAY NIGHT...South winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .WEDNESDAY...Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon and evening. Partly sunny...then partly cloudy with a chance of showers and thunderstorms in the evening. Waves 2 feet or less. .THURSDAY...Northwest winds 10 to 15 knots. Mostly clear. A chance of showers and thunderstorms. Waves 2 feet or less. .FRIDAY...Northeast winds 10 to 15 knots. Mostly clear. Waves 2 feet or less. $$ CB Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes  922 FZUS63 KDTX 240714 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 314 AM EDT Mon Aug 24 2026 For waters beyond five nautical miles off shore on Lake Huron 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...Post-frontal northwest flow maintains breezy conditions today. Lingering chances for some rain showers this morning with showers tapering off tonight as high pressure, 30.10 inches, begins to build in. LHZ361-242000- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 314 AM EDT Mon Aug 24 2026 .TODAY...Northwest winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots with gusts to around 30 knots in the late morning and afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .TONIGHT...Northwest winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .TUESDAY...Light and variable winds. Waves 2 feet or less. .TUESDAY NIGHT...Southwest winds 5 to 10 knots backing to the southeast by midnight...then becoming south 10 to 15 knots after midnight. A chance of showers after midnight. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots decreasing to 5 to 10 knots late in the afternoon...then becoming west 10 to 15 knots late in the evening. A chance of showers in the morning...then showers and a chance of thunderstorms late in the morning. Rain showers likely late in the evening. Waves 1 to 3 feet building to 3 to 5 feet. .THURSDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet building to 3 to 5 feet . .FRIDAY...Northwest winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. $$ LHZ362-363-242000- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 314 AM EDT Mon Aug 24 2026 .TODAY...Northwest winds 20 to 25 knots with gusts to around 30 knots. A chance of showers in the morning. Waves 8 to 12 feet. Waves occasionally around 15 feet. .TONIGHT...Northwest winds 15 to 20 knots decreasing to 5 to 10 knots. Waves 5 to 7 feet subsiding to 3 to 5 feet early in the morning. Waves occasionally around 10 feet. .TUESDAY...Northwest winds 5 to 10 knots becoming light and variable. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and overnight. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots increasing to 15 to 20 knots with gusts to around 30 knots late in the morning...then decreasing to 10 to 15 knots late in the afternoon. A chance of showers. A chance of thunderstorms late in the afternoon. Rain showers likely late in the afternoon. Waves 1 to 3 feet building to 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...West winds 5 to 10 knots becoming northwest 10 to 15 knots . Waves 3 to 5 feet subsiding to 2 to 4 feet in the late morning and early afternoon...then building to 3 to 5 feet . .FRIDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet . $$ LHZ462>464-242000- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 314 AM EDT Mon Aug 24 2026 .TODAY...West winds 20 to 25 knots with gusts to around 30 knots becoming northwest 15 to 20 knots with gusts to around 30 knots in the afternoon. A chance of showers in the morning. Waves 8 to 12 feet. Waves occasionally around 15 feet. .TONIGHT...Northwest winds 10 to 15 knots. Waves 5 to 7 feet. Waves occasionally around 10 feet. .TUESDAY...Northwest winds 5 to 10 knots until late afternoon becoming light and variable. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...Northeast winds 5 to 10 knots veering to the south by midnight...then increasing to 10 to 15 knots after midnight. Waves 2 feet or less. .WEDNESDAY...South winds 10 to 15 knots. A chance of showers late in the morning. A chance of thunderstorms late in the afternoon. Rain showers likely late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Southwest winds 5 to 10 knots veering to the north . Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet . $$ LHZ461-242000- MAFOR 2409/ HURON NORTH 12730 13720 11710 11810 11800. Waves 6 to 9 feet subsiding to 4 to 6 feet. Occasional wave height around 12 feet today. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. HURON SOUTH 11736 12730 12720 11710 11810 11800. Waves 6 to 9 feet. Occasional wave height around 12 feet today. Waves 5 to 7 feet subsiding to 3 to 5 feet. Occasional wave height around 10 feet tonight. $$ CB Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)  064 FZUS61 KCLE 240738 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 338 AM EDT Mon Aug 24 2026 For waters beyond five nautical miles of shore on Lake Erie Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS... A trough averaging 29.90 will linger over the eastern Great Lakes today, followed by high pressure 30.00 inches Monday night into Wednesday. Low pressure 29.80 inches will track through the northern Great Lakes Wednesday into Thursday, pulling a cold front across the lake. High pressure 30.10 will return on Friday. LEZ162-163-241415- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- 338 AM EDT Mon Aug 24 2026 .TODAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...West winds 5 to 15 knots becoming northwest. Waves 2 feet or less. .TUESDAY...Northwest winds 10 knots or less becoming south. Waves 1 foot or less. .TUESDAY NIGHT...Southeast winds 10 knots or less becoming south. Waves 1 foot or less. .WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers and thunderstorms Wednesday night. Waves 2 feet or less. .THURSDAY...Southwest winds 5 to 10 knots becoming northwest. Waves 1 foot or less. .FRIDAY...Northwest winds 10 knots or less becoming east. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ164-165-241415- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- 338 AM EDT Mon Aug 24 2026 .TODAY...Northwest winds 15 to 20 knots becoming west. Waves 3 to 5 feet. .TONIGHT...West winds 5 to 15 knots becoming northwest. Waves 2 to 4 feet subsiding to 1 to 2 feet. .TUESDAY...Northwest winds 10 knots or less. Waves 1 foot or less. .TUESDAY NIGHT...South winds 10 knots or less. Waves 1 foot or less. .WEDNESDAY...South winds 10 to 15 knots becoming southwest. A chance of showers and thunderstorms Wednesday night. Waves 2 feet or less. .THURSDAY...Southwest winds 5 to 15 knots becoming west 10 knots or less. Waves 2 feet or less. .FRIDAY...Northwest winds 5 to 10 knots becoming east. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ061-166>169-241415- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on- the-Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border- 338 AM EDT Mon Aug 24 2026 .TODAY...West winds 15 to 25 knots. A chance of waterspouts. A chance of showers with a slight chance of thunderstorms. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TONIGHT...West winds 15 to 25 knots becoming northwest and diminishing to 10 to 15 knots. A chance of waterspouts through the early overnight. A chance of showers early, then a slight chance of showers from late evening on. Waves 3 to 6 feet subsiding to 1 to 3 feet. .TUESDAY...Northwest winds 5 to 15 knots becoming west. Waves 2 feet or less. .TUESDAY NIGHT...West winds 5 to 10 knots becoming south. Waves 1 foot or less. .WEDNESDAY...South winds 5 to 15 knots. A chance of showers and thunderstorms Wednesday night. Waves 1 to 3 feet. .THURSDAY...Southwest winds 5 to 15 knots becoming west. A chance of showers. Waves 1 to 3 feet. .FRIDAY...Northwest winds 5 to 10 knots becoming northeast. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ161-241415- MAFOR 2409/ ERIE WEST 1/3 11720 13620 11610 13710. Waves 2 to 4 feet building to 3 to 5 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. ERIE CENTRAL 1/3 11620 12630 12620 11710 12700. A chance of waterspouts today. A chance of showers this morning. Waves 3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to 6 feet, and occasionally around 9 feet today. Waves 3 to 5 feet subsiding to 1 to 3 feet tonight. ERIE EAST 1/3 11626 13636 11630 11620 12710. A chance of waterspouts. Waves 3 to 6 feet building to 5 to 7 feet, and occasionally around 9 feet today. Waves 3 to 6 feet subsiding to 2 to 4 feet tonight. $$  843 FZUS63 KMQT 240756 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 356 AM EDT Mon Aug 24 2026 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 high pressure moves through the western Great Lakes today before moving into the Ohio River Valley by tonight. Meanwhile, 29.7 inch Clipper low pressure over Saskatchewan this morning moves over Lake Winnipeg on Tuesday. This Clipper moves over Lake Superior Tuesday night before lifting away towards James Bay and northern Quebec Wednesday night into Thursday morning. 30.0 inch high pressure ridging returns to Lake Superior by Thursday afternoon, increasing to 30.2 inches Thursday night into Friday as the high's center moves overhead. LSZ162-242000- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 356 AM EDT Mon Aug 24 2026 /256 AM CDT Mon Aug 24 2026/ .EARLY THIS MORNING...North winds less than 10 knots. Waves calm to 2 feet. .TODAY...North winds less than 10 knots becoming south 5 to 15 knots in the afternoon. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots becoming northeast less than 10 knots after midnight, then veering east late. Patchy fog after midnight. A slight chance of showers after midnight. Waves calm to 2 feet. .TUESDAY...East winds 5 to 15 knots veering south in the afternoon, then backing east late. A chance of showers and thunderstorms. Waves calm to 2 feet. .TUESDAY NIGHT...North winds 5 to 15 knots backing west after midnight. A chance of thunderstorms through midnight. A chance of showers. Waves calm to 2 feet. .WEDNESDAY...West winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A chance of showers. Waves calm to 2 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to 2 feet. .THURSDAY...West winds 5 to 15 knots veering north. Waves calm to 2 feet. .FRIDAY...East winds 5 to 15 knots backing northeast. Waves calm to 2 feet. $$ LSZ263-242000- 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- 356 AM EDT Mon Aug 24 2026 .EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...North winds 5 to 15 knots backing southwest late. Waves calm to 2 feet. .TONIGHT...Southwest winds 5 to 15 knots backing south after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing southeast late. A chance of showers. A chance of thunderstorms by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...South winds 10 to 20 knots veering southwest after midnight. Showers through midnight. A chance of thunderstorms. A chance of showers after midnight. Waves calm to 2 feet. .WEDNESDAY...West winds 15 to 25 knots. A chance of showers. 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. Waves calm to 2 feet. .FRIDAY...North winds 5 to 15 knots veering south. Waves calm to 2 feet. $$ LSZ264-242000- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 356 AM EDT Mon Aug 24 2026 .EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...North winds 5 to 15 knots backing west late. Waves calm to 2 feet. .TONIGHT...West winds 5 to 15 knots diminishing to less than 10 knots after midnight, then becoming south 5 to 15 knots late. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing southeast in the afternoon. A chance of showers. A slight chance of thunderstorms by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...South winds 10 to 20 knots veering southwest after midnight. Showers and a chance of thunderstorms. Waves building to 1 to 3 feet. .WEDNESDAY...West winds 10 to 20 knots. A chance of showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .WEDNESDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to 20 knots after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...Northwest winds 10 to 20 knots becoming north 5 to 15 knots. Waves calm to 2 feet. .FRIDAY...North winds 5 to 15 knots veering south. Waves calm to 2 feet. $$ LSZ265-242000- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 356 AM EDT Mon Aug 24 2026 .EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 2 to 4 feet. .TODAY...Northwest winds 15 to 25 knots diminishing to 5 to 15 knots late. Waves subsiding to calm to 2 feet. .TONIGHT...West winds 5 to 15 knots backing south late. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots in the afternoon, then increasing to 15 to 25 knots late. A chance of showers and a slight chance of thunderstorms by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...South winds 15 to 25 knots veering southwest after midnight. Showers and a chance of thunderstorms. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .WEDNESDAY...West winds 15 to 25 knots. A chance of showers. Waves building to 1 to 3 feet. .WEDNESDAY NIGHT...West winds 15 to 25 knots veering northwest after midnight. Waves building to 2 to 4 feet. .THURSDAY...Northwest winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to calm to 2 feet. .FRIDAY...North winds 10 to 20 knots becoming south 5 to 15 knots. Waves calm to 2 feet. $$ LSZ266-242000- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 356 AM EDT Mon Aug 24 2026 .EARLY THIS MORNING...North winds 15 to 25 knots. Waves 4 to 7 feet occasionally to 9 feet. .TODAY...North winds 15 to 25 knots backing northwest in the afternoon, then diminishing to 10 to 20 knots late. Waves subsiding to 1 to 3 feet. .TONIGHT...Northwest winds 5 to 15 knots backing southwest late. Waves subsiding to calm to 2 feet. .TUESDAY...South winds 5 to 15 knots becoming southeast 15 to 25 knots late. A slight chance of showers and thunderstorms by mid afternoon. Waves building to 1 to 3 feet. .TUESDAY NIGHT...South winds 15 to 25 knots. Showers and a chance of thunderstorms. Waves building to 2 to 4 feet. .WEDNESDAY...Southwest winds 10 to 20 knots veering west by mid afternoon. Showers likely through early afternoon. Waves subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...West winds 15 to 25 knots veering northwest after midnight. Waves building to 2 to 4 feet. .THURSDAY...Northwest winds 15 to 25 knots diminishing to 5 to 15 knots. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to calm to 2 feet. .FRIDAY...North winds 5 to 15 knots veering south. Waves calm to 2 feet. $$ LSZ267-242000- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 356 AM EDT Mon Aug 24 2026 .EARLY THIS MORNING...Northwest winds 20 to 30 knots. Waves 5 to 8 feet occasionally to 10 feet. .TODAY...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots late. Waves subsiding to 2 to 4 feet. .TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight, then backing west late. Waves subsiding to calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing southeast in the afternoon, then increasing to 10 to 20 knots late. Waves calm to 2 feet. .TUESDAY NIGHT...South winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Showers and a chance of thunderstorms. Waves building to 2 to 4 feet. .WEDNESDAY...South winds 15 to 25 knots becoming west 10 to 20 knots by mid afternoon. Showers. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...West winds 10 to 20 knots becoming northwest 15 to 25 knots after midnight. Waves building to 2 to 4 feet. .THURSDAY...Northwest winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to calm to 2 feet. .FRIDAY...Northwest winds 5 to 15 knots backing west. Waves calm to 2 feet. $$ LSZ261-241400- MAFOR 2409/ Superior West 12800 11100 12400 13300. Waves 1 foot or less. Superior North Central 11710 11810 11710 11610 13600 11500. Waves 2 feet or less. Superior South Central 13730 11720 11710 11610 11600 11500. Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 2 feet or less tonight. Superior East 11740 12730 12720 11710 12700. Waves 3 to 6 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. $$ WFO MQT Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes