449 FZUS63 KMQT 222001 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 401 PM EDT Sat Aug 22 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... Pressure rises continue over Lake Superior behind an exiting 29.9 inch trough. This is followed by 30.1 inch ridging for the latter part of the weekend into early next week via a 30.2 inch parent high from the Canadian Prairies that drops down into the Ohio River Valley by late Monday, weakening to 30.1 inches as it does so. A 29.7 inch low over the Canadian Prairies Monday night then drops southeast towards Lake Superior, arriving early Wednesday morning. The low shifts east Wednesday night with weak ridging of 29.9 inches building over the lake on Thursday. LSZ162-230800- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 401 PM EDT Sat Aug 22 2026 /301 PM CDT Sat Aug 22 2026/ .LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Waves calm to 2 feet. .TONIGHT...Northwest winds 10 to 20 knots veering north after midnight. Waves calm to 2 feet. .SUNDAY...North winds 5 to 15 knots backing southwest late. Waves calm to 2 feet. .SUNDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest less than 10 knots after midnight. Waves calm to 2 feet. .MONDAY...North winds less than 10 knots becoming south 5 to 15 knots by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...East winds 5 to 15 knots becoming south less than 10 knots after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing east by mid afternoon. A chance of showers. Waves calm to 2 feet. .TUESDAY NIGHT...Northeast winds 5 to 15 knots backing north after midnight. Showers likely through midnight. A chance of thunderstorms. A chance of showers after midnight. Waves calm to 2 feet. .WEDNESDAY...Northwest winds 5 to 15 knots increasing to 10 to 20 knots. Waves calm to 2 feet. .THURSDAY...Northwest winds 5 to 15 knots veering north. Waves calm to 2 feet. $$ LSZ263-230800- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 401 PM EDT Sat Aug 22 2026 .LATE THIS AFTERNOON...Northwest winds 5 to 15 knots. Waves calm to 2 feet. .TONIGHT...North winds 10 to 20 knots. Waves building to 2 to 4 feet. .SUNDAY...North winds 10 to 20 knots becoming west 5 to 15 knots late. Waves subsiding to calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots veering northwest late. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots backing southwest by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...Southwest winds 5 to 15 knots backing south after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing east by mid afternoon. A chance of showers. Waves calm to 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Showers likely and a chance of thunderstorms. Waves calm to 2 feet. .WEDNESDAY...North winds 5 to 15 knots. A chance of showers. Waves calm to 2 feet. .THURSDAY...Northwest winds 5 to 15 knots veering north. Waves calm to 2 feet. $$ LSZ264-230800- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 401 PM EDT Sat Aug 22 2026 .LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Waves 1 to 3 feet subsiding to calm to 2 feet. .TONIGHT...North winds 15 to 25 knots diminishing to 10 to 20 knots late. Waves building to 2 to 4 feet. .SUNDAY...North winds 10 to 20 knots backing northwest late. Waves subsiding tocalm to 2 feet. .SUNDAY NIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots backing west by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...West winds 5 to 15 knots becoming southwest less than 10 knots after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing southeast by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 15 knots. A chance of showers through midnight. A chance of thunderstorms. Showers likely after midnight. Waves calm to 2 feet. .WEDNESDAY...East winds 5 to 15 knots backing north. Waves calm to 2 feet. .THURSDAY...Northwest winds 5 to 15 knots veering north. Waves calm to 2 feet. $$ LSZ265-230800- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 401 PM EDT Sat Aug 22 2026 .LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. Waves 3 to 5 feet occasionally to 7 feet. .TONIGHT...Northwest winds 20 to 30 knots veering north after midnight. A chance of showers after midnight. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...North winds 20 to 30 knots backing northwest late. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SUNDAY NIGHT...Northwest winds 15 to 25 knots. Waves subsiding to 1 to 3 feet. .MONDAY...Northwest winds 10 to 20 knots. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...West winds 5 to 15 knots backing southwest after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...Southeast winds 15 to 25 knots becoming south 10 to 20 knots after midnight. Showers likely. Waves calm to 2 feet. .WEDNESDAY...Southwest winds 10 to 20 knots veering northwest. A chance of showers. Waves calm to 2 feet. .THURSDAY...North winds 15 to 25 knots becoming northwest 10 to 20 knots. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ266-230800- 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- 401 PM EDT Sat Aug 22 2026 .LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. Waves 3 to 6 feet occasionally to 8 feet. .TONIGHT...Northwest winds 20 to 30 knots veering north after midnight. Waves 3 to 6 feet occasionally to 8 feet. .SUNDAY...North winds 20 to 30 knots backing northwest late. Waves building to 4 to 8 feet occasionally to 10 feet. .SUNDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Waves subsiding to 2 to 4 feet. .MONDAY...Northwest winds 15 to 25 knots. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing west after midnight. Waves calm to 2 feet. .TUESDAY...South winds 5 to 15 knots backing southeast by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...Southeast winds 10 to 20 knots becoming south 15 to 25 knots after midnight. A chance of showers through midnight. Showers likely after midnight. Waves building to 1 to 3 feet. .WEDNESDAY...South winds 10 to 20 knots backing north. Showers likely. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .THURSDAY...Northwest winds 15 to 25 knots becoming north 10 to 20 knots. Waves subsiding to calm to 2 feet. $$ LSZ267-230800- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 401 PM EDT Sat Aug 22 2026 .LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. Isolated showers. Waves 3 to 5 feet occasionally to 7 feet. .TONIGHT...Northwest winds 20 to 30 knots veering north after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...North winds 20 to 30 knots backing northwest in the afternoon, then increasing to 30 knots with a few gale force gusts to 35 knots possible late. Waves building to 5 to 8 feet occasionally to 10 feet. .SUNDAY NIGHT...Northwest winds 20 to 30 knots. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .MONDAY...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots by mid afternoon. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .TUESDAY...West winds 5 to 15 knots backing east by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to 20 knots after midnight. A chance of showers. Waves building to 1 to 3 feet. .WEDNESDAY...Southeast winds 10 to 20 knots. Showers likely. A chance of showers. Waves subsiding to calm to 2 feet. .THURSDAY...Northwest winds 10 to 20 knots veering north. Waves calm to 2 feet. $$ LSZ261-230200- MAFOR 2221/ Superior West 12710 14820 11810 11500. Waves 2 feet or less. Superior North Central 11720 11730 14830 11830 11720. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet Sunday. Superior South Central 12740 15840. Waves 3 to 5 feet tonight. Waves 4 to 7 feet Sunday. Superior East 12740 13830 12840 11740. Waves 3 to 5 feet tonight. Waves 3 to 6 feet building to 4 to 7 feet Sunday. $$ 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  561 FZUS61 KBUF 222002 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 402 PM EDT Sat Aug 22 2026 For waters beyond five nautical miles of shore on Lake Ontario 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 high pressure ridge averaging 30.1 inches exits toward the Canadian Maritimes today. Elsewhere, a 29.6 inch low should wobble northeastward from the central Great Lakes to southwestern Quebec through Monday. In response to the low's track, a warm front drifts northeastward across Lake Ontario tonight and then a cold front sweeps eastward across the lake overnight tonight through Sunday. Behind the cold front, a trough averaging 29.8 inches lingers over Lake Ontario through Monday. On Tuesday through Wednesday, a ridge averaging 30.1 inches builds from the western and central Great Lakes. The ridge should begin to exit eastward on Thursday and allow a warm front to sweep northeastward across Lake Ontario. LOZ062-230300- Lake Ontario open waters from the Niagara River to Hamlin Beach- 402 PM EDT Sat Aug 22 2026 .TONIGHT...East winds 5 to 15 knots becoming south. Showers with a chance of thunderstorms. Some thunderstorms may be severe with strong winds and large hail early. Waves 1 to 2 feet. .SUNDAY...Southwest winds 15 to 20 knots becoming west. A chance of waterspouts. Showers likely early, then a chance of showers late in the morning. Showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 3 to 6 feet. .SUNDAY NIGHT...West winds 15 to 20 knots. A chance of waterspouts. Showers likely with a chance of thunderstorms in the evening, then showers overnight. Waves 4 to 6 feet. .MONDAY...Southwest winds 15 to 25 knots becoming west. A chance of waterspouts. Showers. Waves 5 to 8 feet. Waves occasionally around 10 feet. .MONDAY NIGHT...West winds 15 to 20 knots. A chance of waterspouts. Showers likely in the evening, then a chance of showers overnight. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet. .TUESDAY...West winds 15 to 20 knots diminishing to 10 knots or less. A chance of waterspouts during the day. Showers likely during the day. Waves 2 to 4 feet subsiding to 1 foot or less. .WEDNESDAY...Southwest winds 10 knots or less becoming south. Waves 1 foot or less. .THURSDAY...South winds 5 to 10 knots becoming southwest. A chance of showers and thunderstorms. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-230300- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 402 PM EDT Sat Aug 22 2026 .TONIGHT...Southeast winds 5 to 10 knots becoming south and increasing to 15 to 25 knots after midnight. Showers with a chance of thunderstorms. Waves 1 to 3 feet building to 3 to 5 feet. .SUNDAY...South winds 15 to 25 knots becoming west. A chance of waterspouts. Showers with a chance of thunderstorms in the morning, then a chance of showers and thunderstorms early in the afternoon. Showers with a chance of thunderstorms late. Waves 3 to 5 feet building to 3 to 6 feet. .SUNDAY NIGHT...West winds 15 to 20 knots becoming southwest. A chance of waterspouts. Showers with a chance of thunderstorms in the evening, then showers overnight. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .MONDAY...Southwest winds 15 to 25 knots. A chance of waterspouts. Showers. Waves 5 to 8 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .MONDAY NIGHT...West winds 15 to 20 knots. A chance of waterspouts. Showers. Waves 5 to 9 feet subsiding to 3 to 6 feet. Waves occasionally around 11 feet. .TUESDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots. A chance of waterspouts. Showers during the day, then a chance of showers Tuesday night. Waves 3 to 6 feet subsiding to 1 to 3 feet. .WEDNESDAY...West winds 5 to 15 knots becoming south. Waves 2 feet or less. .THURSDAY...South winds 5 to 15 knots. A chance of showers during the day, then showers likely Thursday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-230300- MAFOR 2221/ ONTARIO WEST 1/2 11200 11306 12416 11510 13620. A chance of waterspouts Sunday. A chance of thunderstorms tonight and Sunday afternoon. Waves 1 to 3 feet tonight. Waves 1 to 3 feet building to 3 to 6 feet Sunday. ONTARIO EAST 1/2 11300 11310 12426 11436 12520 11620. A chance of waterspouts Sunday. A chance of thunderstorms tonight and Sunday morning. Waves 1 to 3 feet building to 3 to 5 feet tonight. Waves 3 to 5 feet building to 3 to 6 feet Sunday. $$  589 FZUS61 KBUF 222003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EDT Sat Aug 22 2026 SLZ022-024-230300- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Sat Aug 22 2026 .TONIGHT...Southeast winds 10 knots or less increasing to 10 to 15 knots. A chance of showers and thunderstorms after midnight. Showers likely with a chance of thunderstorms late. .SUNDAY...Southeast winds 10 to 15 knots becoming southwest. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Southwest winds 10 to 15 knots. A chance of showers in the evening, then showers overnight. .MONDAY...Southwest winds 5 to 15 knots. Showers in the morning, then showers with a chance of thunderstorms in the afternoon. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Showers likely in the evening, then a chance of showers overnight. .TUESDAY...West winds 5 to 10 knots becoming light and variable. A chance of showers and thunderstorms. .WEDNESDAY...Southwest winds less than 10 knots becoming south. Partly cloudy. .THURSDAY...South winds 10 knots or less. A chance of showers during the day, then showers likely Thursday night. Winds and waves higher in and near thunderstorms. $$  901 FZUS63 KMKX 222007 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 307 PM CDT Sat Aug 22 2026 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... 29.8 inch low pressure is centered over the southern Hudson Bay this afternoon, resulting in generally northwest winds across the open waters of Lake Michigan. These winds will continue into this evening as a weak cold front moves across the lake and 30.2 inch high pressure builds into the northern Great Plains. Isolated showers and thunderstorms are possible along the passing front this afternoon & evening. Severe weather potential is low in this activity, though an isolated stronger storm with gusty winds or a waterspout can't be entirely ruled out. Will be watching radar trends for any potential marine weather statements or special marine warnings through this evening. Northwest winds will continue through the day Sunday, ultimately weakening by Sunday night as the aforementioned area of high pressure approaches Lake Michigan. Light and variable winds will continue Monday with high pressure lingering in the vicinity. The high will shift east into Ontario by Tuesday, resulting in a south-southwest wind shift across the waters. 29.7 inch low pressure will approach from the northern Great Plains Tuesday night into Wednesday, reinforcing the south- southwesterly wind pattern. The low will cross Lake Michigan during the second half of the day Wednesday, bringing a northwest wind shift. Gales are not expected as this occurs. Showers and thunderstorms will accompany the approaching/passing surface low Tuesday night into Wednesday afternoon. It remains too early to tell if any of these storms could be severe, with trends being monitored into the beginning of next week. LMZ261-362-364-366-563-565-567-868-230315- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 307 PM CDT Sat Aug 22 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...North winds to 30 kt becoming northwest 15 to 25 kt. Slight chance of showers this evening. Slight chance of waterspouts. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...Northwest winds 15 to 25 kt becoming north to 30 kt. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY NIGHT...North winds to 30 kt becoming northwest 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .MONDAY...Northwest winds 15 to 25 kt becoming north. Waves 2 to 4 ft. .MONDAY NIGHT...North winds 10 to 20 kt backing to west 5 to 10 kt overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft. .TUESDAY...Southwest winds 10 to 15 kt increasing to 15 to 25 kt in the afternoon. Waves 1 ft or less building to 1 to 3 ft. .TUESDAY NIGHT...South winds 15 to 25 kt diminishing to 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. .WEDNESDAY...Southwest winds 15 to 25 kt becoming south to 30 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .THURSDAY...Northwest winds 10 to 20 kt becoming north 15to 25 kt. Waves 1 to 3 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-230315- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 307 PM CDT Sat Aug 22 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...North winds 15 to 25 kt becoming northwest 10 to 20 kt. Slight chance of waterspouts. Slight chance of showers and thunderstorms this evening, then slight chance of showers overnight. Waves 3 to 5 ft. .SUNDAY...Northwest winds 15 to 25 kt becoming north to 30 kt. Slight chance of waterspouts in the morning. Waves 4 to 7 ft occasionally to 9 ft. .SUNDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .MONDAY...Northwest winds 10 to 20 kt becoming north. Waves 2 to 4 ft. .MONDAY NIGHT...Northeast winds 10 to 15 kt veering to south. Waves 1 to 3 ft. .TUESDAY...South winds 10 to 15 kt increasing to 15 to 25 kt in the afternoon. Waves 1 to 2 ft building to 1 to 3 ft. .TUESDAY NIGHT...South winds 15 to 25 kt becoming southwest 10 to 20 kt. Waves 2 to 4 ft. .WEDNESDAY...Southwest winds 15 to 25 kt increasing to 30 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .THURSDAY...Northwest winds 10 to 20 kt becoming north. Waves 2 to 4 ft. $$ LMZ761-230315- MAFOR 2222/ MICHIGAN NORTH 12840 11830 13730 12840. A chance of showers and thunderstorms early this evening. Waves 2 to 4 feet building to 3 to 5 feet tonight. Waves 3 to 6 feet Sunday. MICHIGAN SOUTH 11830 13820 13730 11830. A chance of showers and thunderstorms early this evening. Waves 2 to 4 feet subsiding to 1 to 3 feet, then building to 3 to 5 feet tonight. Waves 3 to 6 feet Sunday. $$ Sheppard Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes  386 FZUS61 KCLE 222046 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 446 PM EDT Sat Aug 22 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 cold front will move east through the area this evening. A trough averaging 29.80 will linger over the eastern Great Lakes Sunday into Monday morning. High pressure 30.00 inches will gradually build into the region Monday afternoon through Tuesday before departing to the east on Wednesday. Low pressure 29.80 inches moves across the northern Great Lakes Wednesday into Thursday. LEZ162-230245- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- 446 PM EDT Sat Aug 22 2026 .TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20 knots. A chance of waterspouts this evening. Showers and thunderstorms likely early, then a slight chance of showers and thunderstorms late this evening. Waves 1 to 2 feet. .SUNDAY...Northwest winds 15 to 20 knots becoming west. A chance of waterspouts in the afternoon. A slight chance of showers early in the afternoon. A chance of showers late. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots. A chance of waterspouts in the evening. A chance of showers in the evening. Waves 1 to 3 feet. .MONDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots. Waves 1 to 2 feet. .MONDAY NIGHT...West winds 5 to 15 knots becoming northwest. Waves 1 to 2 feet. .TUESDAY...Northwest winds 10 knots or less becoming southwest. Waves 1 foot or less. .WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers Wednesday night. Waves 1 foot or less. .THURSDAY...Southwest winds 5 to 10 knots becoming northwest. A chance of showers and thunderstorms during the day. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ163-230245- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- 446 PM EDT Sat Aug 22 2026 ...SEVERE THUNDERSTORM WATCH 614 IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20 knots. A chance of waterspouts through the early overnight. Showers and thunderstorms likely early, then a chance of showers and thunderstorms late this evening. A slight chance of showers and thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and large hail early. Waves 1 to 3 feet. .SUNDAY...Northwest winds 15 to 20 knots becoming west. A chance of waterspouts in the afternoon. A slight chance of showers early in the afternoon. A chance of showers with a slight chance of thunderstorms late. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots. A chance of waterspouts in the evening. A chance of showers in the evening. Waves 2 to 4 feet. .MONDAY...Northwest winds 15 to 20 knots becoming west. Waves 1 to 3 feet. .MONDAY NIGHT...West winds 10 to 15 knots becoming northwest. Waves 1 to 3 feet. .TUESDAY...Northwest winds 10 knots or less becoming southwest. Waves 1 foot or less. .WEDNESDAY...Southwest winds 5 to 10 knots becoming south. A chance of showers Wednesday night. Waves 1 foot or less. .THURSDAY...Southwest winds 5 to 10 knots becoming northwest. A chance of showers and thunderstorms during the day. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ164>166-230245- 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- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border- 446 PM EDT Sat Aug 22 2026 ...SEVERE THUNDERSTORM WATCH 614 IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...West winds 10 to 15 knots becoming northwest 15 to 20 knots. A chance of waterspouts. Showers with thunderstorms likely early, then a chance of showers and thunderstorms. A chance of showers with a slight chance of thunderstorms late. Some thunderstorms may be severe with damaging winds and large hail early. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY...Northwest winds 15 to 20 knots becoming west. A chance of waterspouts in the afternoon. A chance of showers early in the afternoon. A chance of showers and thunderstorms late. Waves 3 to 5 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots. A chance of waterspouts in the evening. A chance of showers and thunderstorms in the evening. Waves 3 to 5 feet. .MONDAY...West winds 15 to 20 knots. Waves 3 to 5 feet. .MONDAY NIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet. .TUESDAY...Northwest winds 5 to 10 knots becoming south. Waves 2 feet or less. .WEDNESDAY...South winds 5 to 15 knots. A chance of showers Wednesday night. Waves 2 feet or less. .THURSDAY...Southwest winds 5 to 15 knots becoming west. A chance of showers and thunderstorms during the day, then a chance of showers Thursday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ061-167>169-230245- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on- the-Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border- 446 PM EDT Sat Aug 22 2026 ...SEVERE THUNDERSTORM WATCH 614 IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...Southwest winds 10 to 15 knots becoming northwest 15 to 20 knots. A chance of waterspouts. Showers with thunderstorms likely early, then showers likely with a chance of thunderstorms late this evening. A chance of showers and thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and large hail early. Waves 1 to 3 feet building to 3 to 5 feet. .SUNDAY...Northwest winds 15 to 20 knots becoming west. A chance of waterspouts. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 3 to 6 feet. .SUNDAY NIGHT...West winds 15 to 25 knots. A chance of waterspouts. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. Waves 3 to 6 feet. .MONDAY...West winds 15 to 25 knots. A chance of waterspouts. A chance of showers. Waves 4 to 7 feet. Waves occasionally around 9 feet. .MONDAY NIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. A chance of waterspouts in the evening. Waves 3 to 6 feet subsiding to 1 to 3 feet. .TUESDAY...Northwest winds 5 to 15 knots becoming southwest. Waves 2 feet or less. .WEDNESDAY...South winds 5 to 15 knots. Waves 2 feet or less. .THURSDAY...South winds 5 to 15 knots becoming southwest. A chance of showers. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LEZ161-230245- MAFOR 2221/ ERIE WEST 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11619 11710 14720 11720 11620. A chance of waterspouts tonight and Sunday afternoon. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet Sunday. ERIE CENTRAL 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11519 11616 14720 12620. A chance of waterspouts. Waves 1 to 3 feet building to 3 to 5 feet tonight. Waves 3 to 5 feet Sunday. ERIE EAST 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11509 11406 11516 11616 14620. A chance of waterspouts. Waves 1 foot or less building to 2 to 4 feet tonight. Waves 3 to 6 feet Sunday. $$