610 FZUS63 KDTX 192200 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 600 PM EDT Tue May 19 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...A cold front sweeps across the region this evening, veering winds from southwest to northwest. Strong to severe thunderstorms will be possible ahead of this cold front. High pressure, 30.50 inches, then builds in mid-week. LCZ460-200600- Lake St Clair- 600 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots late in the evening...then veering to the northwest after midnight becoming north 15 to 20 knots early in the morning. Partly cloudy this evening becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of light showers . Waves 1 to 3 feet. .WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots late in the morning...then diminishing to 5 to 10 knots early in the afternoon becoming northeast 10 to 15 knots late in the afternoon. Mostly cloudy. Waves 2 feet or less. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy early in the evening becoming partly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .THURSDAY NIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots in the evening. Mostly cloudy. A chance of showers in the afternoon. Rain showers likely in the evening. Waves 2 to 4 feet. A Small Craft Advisory may be needed. .SATURDAY...East winds 20 to 25 knots with gusts to 30 knots. Showers. Waves 2 to 4 feet. .SUNDAY...West winds 5 to 10 knots. Mostly cloudy with a chance of showers. 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  441 FZUS61 KCLE 192232 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 632 PM EDT Tue May 19 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 tracks southeast across Lake Erie tonight. Pressure rises Wednesday and a ridge averaging 30.30 inches over the lake builds in for Thursday. Low pressure 30.00 inches moves in from the southwest over the western end of Lake Erie Friday into Saturday. LEZ162-200215- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- 632 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with thunderstorms likely this evening, then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce damaging winds early. Waves 2 to 4 feet subsiding to 1 to 2 feet. .WEDNESDAY...North winds 5 to 15 knots becoming east. Waves 1 to 2 feet. .WEDNESDAY NIGHT...East winds 10 to 15 knots becoming northeast 15 to 20 knots. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east. Waves 2 to 3 feet. .THURSDAY NIGHT...East winds 15 to 20 knots becoming northeast. Waves 2 to 4 feet. .FRIDAY...East winds 15 to 25 knots. Showers likely during the day, then showers Friday night. Waves 3 to 5 feet. .SATURDAY...East winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 2 to 4 feet subsiding to 1 to 2 feet. .SUNDAY...Southwest winds 5 to 10 knots becoming northwest. A chance of showers during the day. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ163>165-200215- 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- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- 632 PM EDT Tue May 19 2026 ...SEVERE THUNDERSTORM WATCH 230 IN EFFECT UNTIL 10 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with thunderstorms likely this evening, then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce damaging winds early. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...North winds 5 to 15 knots becoming northeast. A slight chance of showers early. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet building to 3 to 5 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east. Waves 3 to 5 feet. .FRIDAY...East winds 15 to 25 knots. Showers likely during the day, then showers with a chance of thunderstorms Friday night. Waves 3 to 5 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...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. $$ LEZ166-167-200215- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border- 632 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with a chance of thunderstorms through the early overnight, then a chance of showers with a slight chance of thunderstorms late. Waves 2 to 4 feet. .WEDNESDAY...North winds 10 to 15 knots. A slight chance of showers early. Waves 2 to 3 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast. Waves 2 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 2 to 4 feet building to 3 to 5 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east. Waves 3 to 5 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers during the day, then showers Friday night. Waves 3 to 5 feet. .SATURDAY...East winds 15 to 20 knots becoming south 5 to 15 knots. Showers with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 3 to 5 feet subsiding to 1 to 3 feet. .SUNDAY...South winds 10 knots or less becoming northwest. A chance of showers and thunderstorms during the day, then a chance of showers Sunday night. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ061-168-169-200215- 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- 632 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds 10 to 15 knots becoming west. Showers with a chance of thunderstorms this evening, then showers with a slight chance of thunderstorms after midnight. Waves 2 to 3 feet. .WEDNESDAY...Northwest winds 5 to 15 knots becoming west. A chance of showers early. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming northeast. Waves 1 to 2 feet. .THURSDAY...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east. Waves 2 to 4 feet subsiding to 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...East winds 15 to 20 knots becoming southeast 10 to 15 knots. Showers with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...South winds 10 knots or less becoming southwest. A chance of showers and thunderstorms during the day, then a chance of showers Sunday night. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ161-200215- MAFOR 1921/ ERIE WEST 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11529 11516 11510 11710 11810 12110 11100. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Wednesday. ERIE CENTRAL 1/3...SEVERE THUNDERSTORM WATCH IN EFFECT...11520 12516 11610 14810. A chance of thunderstorms this evening. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Wednesday. ERIE EAST 1/3 11510 12516 11616 11710 11700 12600. A chance of thunderstorms this evening. Waves 1 to 3 feet. $$