741 FZUS61 KCLE 190109 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 909 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. LEZ162>164-190815- 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- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- 909 PM EDT Mon May 18 2026 .REST OF TONIGHT...Southwest winds 10 to 15 knots. A chance of showers and thunderstorms late this evening, then a slight chance of showers after midnight. A chance of showers with a slight chance of thunderstorms late. Waves 1 to 2 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 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 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. $$ LEZ165>168-190815- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on- the-Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- 909 PM EDT Mon May 18 2026 .REST OF TONIGHT...Southwest winds 10 to 15 knots becoming south. A chance of showers and thunderstorms late this evening, then a slight chance of showers and thunderstorms after midnight. A slight chance of showers late. Waves 1 to 3 feet. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers early, then a slight chance of showers late in the morning. A slight chance of showers and thunderstorms late. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers with a chance of thunderstorms. Waves 2 to 4 feet. .WEDNESDAY...North winds 10 to 15 knots. Showers likely in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east. Waves 2 to 4 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers during the day, then showers Friday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely during the day, then a chance of showers Saturday night. Waves 2 feet or less.Winds and waves higher in and near thunderstorms. $$ LEZ061-169-190815- 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- 909 PM EDT Mon May 18 2026 .REST OF TONIGHT...Southwest winds around 10 knots. A slight chance of showers and thunderstorms. 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. $$ LEZ161-190815- MAFOR 1903/ ERIE WEST 1/3 12510 11410 13520 11526 11516. A chance of thunderstorms Tuesday afternoon and Tuesday evening. Waves 1 to 3 feet. ERIE CENTRAL 1/3 11510 12410 11510 12520 11510 11516. A chance of thunderstorms Tuesday evening. Waves 1 to 3 feet overnight. Waves 1 to 3 feet building to 2 to 4 feet Tuesday. Waves 2 to 4 feet Tuesday evening. ERIE EAST 1/3 13500 14510 11516. A chance of thunderstorms Tuesday evening. Waves 1 to 3 feet. $$  618 FZUS63 KMKX 190147 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 847 PM CDT Mon May 18 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... A Dense Fog Advisory is in effect tonight through Tuesday morning for the north half of the lake as relatively mild and humid air flows over the cold lake waters. Otherwise modest to breezy southerly winds will develop tonight and last into early Tuesday afternoon, then followed by the passage of a cold front. Winds will shift to northwesterly with the cold frontal passage and remain a bit breezy. Scattered thunderstorms can be expected over the central and southern portion of the lake late tonight into Tuesday. High pressure around 30.4 inches will then move into the northern Great Lakes for Wednesday afternoon into Thursday. Light to modest north to northeast winds can be expected. LMZ261-362-364-366-563-565-567-868-190915- 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- 847 PM CDT Mon May 18 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... .REST OF TONIGHT...South winds 10 to 20 kt increasing to 30 kt. Widespread dense fog. Slight chance of rain showers through early evening, then chance of rain showers and thunderstorms overnight. Waves 4 to 7 ft occasionally to 9 ft. .TUESDAY...South winds to 30 kt becoming west. Widespread dense fog in the morning, then patchy fog in the afternoon. Slight chance of showers and thunderstorms in the morning, then chance of showers in the afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TUESDAY NIGHT...Northwest winds 15 to 25 kt. Waves 3 to 5 ft. .WEDNESDAY...North winds 15 to 25 kt. Waves 2 to 4 ft. .WEDNESDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .THURSDAY...East winds 5 to 10 kt becoming northeast 10 to 20 kt in the afternoon. Waves 1 to 2 ft. .THURSDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Waves 1 to 3 ft. .FRIDAY...East winds 10 to 20 kt becoming northeast 15 to 25 kt. Waves 2 to 4 ft. .SATURDAY...Northeast winds 15 to 25 kt. Chance of rain showers. Waves 3 to 5 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-190915- 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 fromGrand 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- 847 PM CDT Mon May 18 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TONIGHT...South winds 15 to 25 kt increasing to 30 kt. Slight chance of showers through early evening, then chance of showers and thunderstorms overnight. Patchy fog overnight. Waves 4 to 7 ft occasionally to 9 ft. .TUESDAY...South winds to 30 kt becoming west 15 to 25 kt. Patchy fog in the morning. Slight chance of showers and thunderstorms in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TUESDAY NIGHT...Northwest winds 10 to 20 kt becoming north. Waves 3 to 5 ft. .WEDNESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .WEDNESDAY NIGHT...Northeast winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .THURSDAY...East winds 10 to 20 kt becoming northeast. Waves 2 to 4 ft. .THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Waves 2 to 4 ft. .FRIDAY...East winds 10 to 20 kt becoming northeast. Chance of showers. Waves 2 to 4 ft. .SATURDAY...Northeast winds 10 to 20 kt becoming north 10 to 15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft. $$ LMZ761-190915- MAFOR 1904/ MICHIGAN NORTH 11434 11444 11446 19444 11444 12540 12730. Waves 2 to 4 feet building to 3 to 6 feet overnight. Waves 3 to 6 feet Tuesday. Waves 3 to 5 feet subsiding to 2 to 4 feet Tuesday evening. MICHIGAN SOUTH 11430 13440 12530 12720. A chance of showers and thunderstorms overnight. A chance of showers Tuesday afternoon. Waves 3 to 6 feet overnight and Tuesday. Waves 2 to 4 feet Tuesday evening. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes