277 FZUS61 KCLE 201330 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 930 AM EDT Wed May 20 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 exits to the southeast this morning. High pressure 30.40 inches slides across the northern Great Lakes tonight and Thursday before shifting into New England on Friday. Low pressure 30.00 inches approaches from the southwest Friday night into Saturday, lifting a warm front across the lake early Saturday. A weak cold front is expected to cross the lake on Sunday. LEZ162-163-202015- 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- 930 AM EDT Wed May 20 2026 .REST OF TODAY...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots. A slight chance of showers late this morning. Waves 1 to 3 feet. .TONIGHT...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...East winds 15 to 20 knots. Waves 3 to 5 feet. .FRIDAY...East winds 15 to 25 knots. Rain likely during the day, then rain 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. Rain likely with a chance of thunderstorms during the day. Waves 2 to 4 feet subsiding to 1 foot or less. .SUNDAY...Southwest winds 10 knots or less becoming north. A chance of showers. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LEZ164>168-202015- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on- the-Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- 930 AM EDT Wed May 20 2026 .REST OF TODAY...North winds 15 to 20 knots diminishing to 10 to 15 knots. A slight chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...North winds 10 to 15 knots becoming northeast 15 to 20 knots. Waves 2 to 4 feet. .THURSDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet building to 3 to 6 feet. .THURSDAY NIGHT...Northeast winds 15 to 20 knots becoming east. Waves 3 to 6 feet. .FRIDAY...East winds 15 to 20 knots. A chance of rain during the day, then rain with a chance of thunderstorms Friday night. Waves 3 to 6 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south 10 to 15 knots. Rain with a chance of thunderstorms during the day, then a chance of showers Saturday night. Waves 3 to 5 feet subsiding to 1 to 3 feet. .SUNDAY...South winds 10 knots or less becoming southwest. A chance of showers. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ061-169-202015- 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- 930 AM EDT Wed May 20 2026 .REST OF TODAY...Northwest winds 5 to 15 knots becoming west. A slight chance of showers late this morning. Waves 1 to 3 feet. .TONIGHT...Northwest winds 5 to 15 knots becoming northeast. Waves 1 to 3 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 subsiding to 1 to 3 feet. .FRIDAY...Northeast winds 10 to 15 knots becoming east 15 to 20 knots. A chance of rain during the day, then rain Friday night. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 20 knots becoming southeast 10 to 15 knots. Rain with a chance of thunderstorms during the day, then showers likely Saturday night. Waves 1 to 3 feet. .SUNDAY...South winds 10 knots or less. A chance of showers during the day, then showers likely Sunday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ161-202015- MAFOR 2015/ ERIE WEST 1/3 11110 11100 13110 13120. Waves 2 to 4 feet subsiding to 1 to 3 feet this afternoon. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet building to 3 to 5 feet Thursday morning. ERIE CENTRAL 1/3 14810 11810 11110 12120. Waves 2 to 4 feet subsiding to 1 to 3 feet this afternoon. Waves 2 to 4 feet tonight. Waves 2 to 4 feet building to 3 to 5 feet Thursday morning. ERIE EAST 1/3 11700 11600 11610 11710 11810 11110 12120. Waves 1 to 3 feet this afternoon and tonight. Waves 2 to 4 feet building to 3 to 5 feet Thursday morning. $$  067 FZUS63 KMKX 201350 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 850 AM CDT Wed May 20 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... Winds will come around from northwesterly to northeasterly through the first half of the day as high pressure around 30.4 inches builds into the Upper Great Lakes region and then lingers into Thursday. Still looking at gusty northeast winds through midweek, especially over the southern half of the lake, and building waves along the western lakeshore. High pressure continues to build to around 30.5 inches as it lifts northeastward across Ontario and Quebec Friday through the weekend with easterly winds persisting across Lake Michigan. Expecting winds to increase during this timeframe due to a broad low pressure trough around 29.8 inches setting up over the Plains. LMZ261-362-364-366-563-565-567-868-202130- 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- 850 AM CDT Wed May 20 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...North winds 10 to 15 kt becoming northeast 15 to 25 kt. Waves 2 to 4 ft. .TONIGHT...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 2 to 4 ft. .THURSDAY...Northeast winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. .THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to 15 kt. Waves 1 to 3 ft. .FRIDAY...East winds 10 to 20 kt becoming northeast 15 to 25 kt. Waves 1 to 3 ft building to 3 to 5 ft. .FRIDAY NIGHT...East winds 15 to 25 kt increasing to 30 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY...East winds to 30 kt becoming northeast. Chance of showers. Waves 4 to 7 ft occasionally to 9 ft. .SUNDAY...Southwest winds 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-202130- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 850 AM CDT Wed May 20 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. .TONIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft. .THURSDAY...East winds 10 to 20 kt becoming north. Waves 3 to 5 ft subsiding to 2 to 4 ft. .THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Waves 3 to 5 ft. .FRIDAY...East winds 10 to 20 kt becoming northeast 15 to 25 kt. Chance of showers in the afternoon. Waves 3 to 5 ft. .FRIDAY NIGHT...East winds 15 to 25 kt. Showers likely. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY...East winds 10 to 20 kt becoming north 10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .SUNDAY...South winds 5 to 10 kt. Waves 1 ft or less. $$ LMZ761-202130- MAFOR 2016/ MICHIGAN NORTH 11820 11130 12120 14110. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Thursday morning. MICHIGAN SOUTH 14830 13120 11210. Waves 2 to 4 feet building to 3 to 6 feet this afternoon and tonight. Waves 2 to 4 feet Thursday morning. $$ Cronce Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes