017 FZUS51 KCLE 180120 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 920 PM EDT Fri Apr 17 2026 For waters within five nautical miles of shore 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. LEZ142>144-180815- Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH- The Islands to Vermilion OH- 920 PM EDT Fri Apr 17 2026 .REST OF TONIGHT...Southeast winds 5 to 15 knots becoming south. A chance of showers and thunderstorms late. Waves 2 feet or less. .SATURDAY...South winds 15 to 20 knots becoming west. Showers with a chance of thunderstorms in the morning, then showers with a slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...West winds 15 to 20 knots. A chance of showers in the evening. Waves 1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to 3 feet. .SUNDAY...West winds 15 to 20 knots. Mostly sunny. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. See Lake Erie open lakes forecast for Monday through Wednesday. The water temperature off Toledo is 54 degrees, off Cleveland 46 degrees, and off Erie 49 degrees. $$ LEZ145>148-180815- Vermilion to Avon Point OH-Avon Point to Willowick OH- Willowick to Geneva-on-the Lake OH-Geneva-on-the- Lake to Conneaut OH- 920 PM EDT Fri Apr 17 2026 .REST OF TONIGHT...East winds 5 to 15 knots becoming south. Patchy dense fog late this evening. Waves 2 feet or less. .SATURDAY...South winds 15 to 20 knots becoming west. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .SATURDAY NIGHT...West winds 15 to 20 knots. A chance of showers. Waves 2 to 4 feet. .SUNDAY...West winds 15 to 20 knots. A chance of rain showers in the afternoon. Waves 2 to 4 feet. Winds and waves higher in and near thunderstorms. See Lake Erie open lakes forecast for Monday through Wednesday. The water temperature off Toledo is 54 degrees, off Cleveland 46 degrees, and off Erie 49 degrees. $$ LEZ149-180815- Conneaut OH to Ripley NY- 920 PM EDT Fri Apr 17 2026 .REST OF TONIGHT...East winds 10 knots or less becoming south 10 to 15 knots. Patchy dense fog. Waves 1 foot or less. .SATURDAY...South winds 15 to 20 knots becoming southwest. A slight chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...West winds 10 to 15 knots. Rain showers likely in the evening, then a chance of rain showers overnight. Waves 1 to 3 feet. .SUNDAY...West winds 10 to 15 knots. A chance of rain and snow showers in the afternoon. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. See Lake Erie open lakes forecast for Monday through Wednesday. The water temperature off Toledo is 54 degrees, off Cleveland 46 degrees, and off Erie 49 degrees. $$  838 FZUS53 KGRB 180130 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 830 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-180400- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 830 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts, then veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ521-180400- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- 830 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...S wind 15 to 25 kts veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ541-180400- Rock Island Passage to Sturgeon Bay WI- 830 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...S wind 15 to 25 kts veering NW after midnight. Waves 5 to 8 ft. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late morning and afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-180400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 830 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...S wind 15 to 25 kts veering W after midnight. Gusts to 35 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy in the morning then clearing. .SATURDAY NIGHT...W wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear. A Small Craft Advisory may be needed. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.  598 FZUS53 KLOT 180137 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 837 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>742-180915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 837 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... ...TORNADO WATCH 131 IN EFFECT UNTIL 11 PM CDT THIS EVENING... .REST OF TONIGHT...South winds 20 to 25 kt becoming west late. Showers and thunderstorms this evening, then showers and a chance of thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and waterspouts. Waves 3 to 5 ft subsiding to 2 to 4 ft. .SATURDAY...Northwest winds 20 to 25 kt becoming west. Slight chance of showers in the morning. Waves 2 to 4 ft. .SATURDAY NIGHT...West winds 15 to 20 kt diminishing to 10 to 15 kt. Partly cloudy in the evening, then becoming mostly clear. Waves 1 to 3 ft. .SUNDAY...West winds 10 to 15 kt becoming northwest 15 to 20 kt in the afternoon. Slight chance of showers in the afternoon. Waves 1 to 2 ft. $$ LMZ743>745-180915- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 837 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... ...TORNADO WATCH 131 IN EFFECT UNTIL 11 PM CDT THIS EVENING... .REST OF TONIGHT...South winds 20 to 25 kt becoming southwest late. Showers and thunderstorms this evening, then showers with a chance of thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and waterspouts. Waves 2 to 4 ft. .SATURDAY...Northwest winds 20 to 25 kt. Chance of showers in the morning. Waves 3 to 5 ft. .SATURDAY NIGHT...Northwest winds 15 to 20 kt becoming west 10 to 15 kt. Partly cloudy in the evening then clearing. Waves 2 to 4 ft. .SUNDAY...West winds 10 to 20 kt becoming northwest in the afternoon. Mostly sunny in the morning, then becoming mostly cloudy. Waves 1 to 3 ft. $$