FZUS61 KCLE 181939 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 339 PM EDT Mon May 18 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... Pressure will fall tonight and Tuesday ahead of a cold front late Tuesday into early Tuesday night. A ridge averaging 30.30 inches will build in Wednesday holding through Thursday night. A trough averaging 30.30 inches moves in for the weekend. LEZ164-190215- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- 339 PM EDT Mon May 18 2026 .TONIGHT...Southwest winds 10 to 15 knots. Showers likely with a chance of thunderstorms this evening, then a slight chance of showers and thunderstorms after midnight. Waves 1 to 3 feet. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers early, then a chance of showers with a slight chance of thunderstorms late in the morning. A chance of showers and thunderstorms late. Waves 1 to 3 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with a chance of thunderstorms. Waves 2 to 3 feet. .WEDNESDAY...Northeast winds 10 to 15 knots. Showers likely in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots becoming east 15 to 20 knots. Waves 2 to 3 feet. .FRIDAY...East winds 15 to 20 knots becoming southeast. Showers likely during the day, then showers Friday night. Waves 1 to 3 feet. .SATURDAY...Southeast winds 5 to 15 knots becoming south. Showers likely with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LEZ162-163-190215- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- 339 PM EDT Mon May 18 2026 ...SEVERE THUNDERSTORM WATCH 223 IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of showers and thunderstorms this evening, then a chance of showers with a slight chance of thunderstorms after midnight. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 20 knots becoming southwest. A chance of showers with a slight chance of thunderstorms early, then a slight chance of showers and thunderstorms. A chance of showers and thunderstorms late. Waves 1 to 3 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with a chance of thunderstorms. Waves 1 to 3 feet. .WEDNESDAY...North winds 5 to 15 knots becoming northeast. A chance of showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers during the day, then showers Friday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots diminishing to 5 to 15 knots. A chance of showers and thunderstorms during the day, then a chance of showers Saturday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ165>168-190215- 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-Geneva-on- the-Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- 339 PM EDT Mon May 18 2026 .TONIGHT...Southwest winds 10 to 15 knots becoming south. A chance of showers and thunderstorms this evening, then a slight chance of showers and thunderstorms after midnight. A slight chance of showers late. Waves 1 to 3 feet. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers early, then a slight chance of showers late in the morning. A slight chance of showers and thunderstorms late. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with a chance of thunderstorms. Waves 2 to 4 feet. .WEDNESDAY...North winds 10 to 15 knots. Showers likely in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east. Waves 2 to 4 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers during the day, then showers Friday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely during the day, then a chance of showers Saturday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ061-169-190215- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border- 339 PM EDT Mon May 18 2026 .TONIGHT...Southwest winds 5 to 10 knots. A slight chance of showers and thunderstorms from late evening on. Waves 1 to 2 feet. .TUESDAY...Southwest winds 10 to 15 knots. A chance of showers early, then a slight chance of showers late in the morning. Waves 1 to 2 feet. .TUESDAY NIGHT...Southwest winds 10 to 15 knots becoming west. Showers with a chance of thunderstorms. Waves 2 to 3 feet. .WEDNESDAY...Northwest winds 5 to 10 knots becoming west. Showers likely in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming northeast. Waves 1 to 2 feet. .THURSDAY...Northeast winds 10 to 15 knots becoming east. Waves 2 feet or less. .FRIDAY...East winds 10 to 15 knots. A chance of showers during the day, then showers likely Friday night. Waves 2 feet or less. .SATURDAY...East winds 5 to 15 knots becoming southeast. Showers likely. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ161-190215- MAFOR 1821/ ERIE WEST 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11520 13510 11410 13520. A chance of showers and thunderstorms this evening. A chance of showers Tuesday morning, then a chance of showers and thunderstorms Tuesday afternoon. Waves 1 to 3 feet. ERIE CENTRAL 1/3 13510 12410 11510 12520. A chance of showers and thunderstorms this evening. A chance of showers Tuesday morning. Waves 1 to 3 feet tonight. Waves 1 to 3 feet building to 2 to 4 feet Tuesday. ERIE EAST 1/3 14500 11500 13510. Waves 1 to 2 feet. $$