Lake Erie wave forecast: read the 2-foot line
When NWS says Lake Erie waves are 2 feet or less, that is significant wave height, the average of the highest third of the waves, not the biggest wave you will hit. Occasional waves run higher. Thunderstorms can stack more on top.
For current Miller boat times, see the Miller Ferry Put-in-Bay guide.
The number everyone argues about
Lake Erie boaters spent August posting rough-water clips on days the marine forecast printed 2 feet or less. One late-August post put it in one line: the lake called for 2-foot waves and then showed her fury. Tritoon videos in 2- to 3-foot northeast chop made the same point without the poetry.
The Open Lake Forecast from NWS Cleveland prints the definition at the top of the product. Waves are significant wave height. Occasional wave height is the top tenth of the spectrum. That is why a "2 feet or less" day can still put green water over a low bow. People read the headline as a maximum.
When thunderstorms are in the forecast, NWS adds a line to the zone: winds and waves higher in and near thunderstorms. A 2-foot morning can be a 4-foot squall at 2 p.m. without the base forecast being wrong.
Which product to open
Use two, not one. The nearshore text is the island-ferry product. The Open Lake Forecast (GLF) is for water beyond five nautical miles: walleye runs and longer central-basin hops.
| Zone | Covers | Use it for |
|---|---|---|
| LEZ142 | Maumee Bay to Reno Beach OH | Toledo / far-west launches |
| LEZ143 | Reno Beach to The Islands OH | Catawba, Port Clinton, Put-in-Bay, Miller Ferry, Marblehead and the Kelleys ferry |
| LEZ144 | The Islands to Vermilion OH | Sandusky Bay, Cedar Point |
| LEZ145 | Vermilion to Avon Point OH | Lorain harbor and breakwalls |
| LEZ146 | Avon Point to Willowick OH | Cleveland: Edgewater, East 55th, Rocky River mouth |
| LEZ147 | Willowick to Geneva-on-the-Lake OH | Fairport Harbor, Grand River mouth |
| LEZ148 | Geneva-on-the-Lake to Conneaut OH | Ashtabula, Conneaut |
Official products: NWS Cleveland marine · CLE Open Lake Forecast. Then look at a camera. The Put-in-Bay webcam and the Miller Catawba dock cam will show chop the text forecast cannot.
Cleveland wave report: zone LEZ146 and the buoys
Cleveland is in nearshore zone LEZ146, Avon Point to Willowick. That covers Edgewater, the East 55th breakwall and the mouth of the Rocky River. Lorain is in LEZ145, and Fairport Harbor and the mouth of the Grand River are in LEZ147. The NWS Cleveland Nearshore Marine Forecast prints every Ohio zone in one text product for water within five nautical miles of shore. It covers about the next two days, then points you to the Open Lake Forecast. The city's 2026 Gulf of Cleveland vote covers a two-mile strip off this shoreline; it does not rename the lake.
The issuance from 9:42 pm on Friday, October 2, 2026 shows why the zone matters. It put a small craft advisory on LEZ146 through LEZ148, Avon Point to Conneaut, with north winds of 15 to 20 knots and waves of 3 to 5 feet, occasionally around 6. The two western zones, LEZ142 and LEZ143, had waves of 2 feet or less the same night.
For a measured wave report instead of a forecast, use the buoys. The National Data Buoy Center posts readings from the Cleveland Intake Crib buoy (45176), the Lakewood buoy (45169) and the Cleveland buoy (45164) farther out. Just after midnight on October 3, the crib buoy read 4.3-foot waves at a 5-second period, with a northeast wind of 17.5 knots gusting to 23. The buoy wave height is a significant height too, so some waves were bigger than that.
In the fall, Ohio DNR says steelhead gather along the nearshore breakwalls before they run the rivers, and Cleveland Metroparks has early fish at Edgewater and East 55th. If you plan to cast from those rocks, read LEZ146 first. The rivers and the limits are in our Lake Erie steelhead fishing guide.
How to read the height line
| Term | NWS meaning | On this lake |
|---|---|---|
| Significant | Average of the highest 1/3 of the wave spectrum | The headline: "waves 2 feet or less" |
| Occasional | Average of the highest 1/10 | The sets that slap a tritoon or a 16-foot bow |
| In thunderstorms | Higher than both; not a separate number | Treat the printed height as a floor |
How Lake Erie makes the number feel worse
This is the shallowest Great Lake. Short, steep waves build fast when wind increases or turns against leftover chop. A northeast wind on the western basin stacks water toward Ohio and the islands. A west or southwest wind can look friendly in the harbor and still stand the boat up in the passage.
Small boats and tritoons feel 2- to 3-foot northeast waves as a working day, not a cruise. If that is your hull, treat anything labeled 2 feet with thunderstorms in the wording as a stay-in-harbor call. Take a ferry or a charter instead of proving the forecast wrong with your own bow. Late summer the same product may add a chance of waterspouts. That is a separate hazard, not extra wave height.
A simple pre-launch check
- Read today and tonight in your nearshore zone. Note wind direction, not just speed.
- Read the significant height and the occasional height if the product prints it.
- If thunderstorms are in the wording, assume the printed waves are the floor.
- Look at the webcam. If the harbor already has whitecaps, the passage is worse.
- Tell someone on land your return time. Wear the jacket in the boat, not in the bag.
The September 15 Ashtabula sinking-boat rescue happened three miles off a city park, on a weekday, in a small boat. The write-up is here: Ashtabula rescue.
If the lake is going to be rude
Let the ferries do the crossing and keep the hotel on the island. On a 2-foot day, leave the tritoon on the trailer and keep the Put-in-Bay plans.
Check Put-in-Bay hotel pricesLake Erie wave forecast FAQ
Where do I get the official Lake Erie wave forecast?
National Weather Service Cleveland. Use the nearshore marine forecast for the zone you are actually in, and the Open Lake Forecast (GLF) for waters beyond five nautical miles. The Cleveland marine page is weather.gov/cle/marine_forecast.
What does "waves 2 feet or less" mean?
Significant wave height: the average of the highest one-third of the wave spectrum. The product also defines occasional wave height as the average of the highest one-tenth. Some waves that day will be bigger than the headline number. Thunderstorms can add more on top; the forecast says so in one line.
Why do boaters say the forecast missed?
Usually they treated the significant height as a ceiling. A 2-foot forecast can still throw 3-foot sets, especially when wind opposes a short residual chop on a shallow lake. Tritoons and small fishing boats feel that immediately.
Which zone is Put-in-Bay in?
LEZ143, Reno Beach to The Islands. That is the Catawba, Port Clinton, and South Bass nearshore belt. Cedar Point and Sandusky Bay sit in LEZ144 (The Islands to Vermilion). Do not use a Cleveland-to-Erie, Pennsylvania, nearshore zone for a Catawba-to-South Bass crossing.
Which nearshore zone is Cleveland in?
LEZ146, Avon Point to Willowick. It covers the Cleveland lakefront, including Edgewater, the East 55th breakwall and the mouth of the Rocky River. Lorain is in LEZ145 and Fairport Harbor in LEZ147. For a live wave reading instead of a forecast, check the Cleveland Intake Crib (45176) or Lakewood (45169) buoy on the National Data Buoy Center site.
What does "chance of waterspouts" in the marine forecast mean?
Late-summer western-basin text will sometimes add that line when cooler air sits over warm water. It is not a cancellation by itself. If a Special Marine Warning is up for the island passage, the boats make that call. Our waterspouts page covers the August 20 Cedar Point sighting and the September 6 South Passage spout.
Can I trust a phone weather app instead?
Use it for rain timing if you want. For waves and small-craft decisions, read the NWS marine text. Many apps hide the significant-vs-occasional distinction and skip the thunderstorm caveat.
Do the ferries use this forecast?
They use marine weather, plus their own captains. A 2-foot open-lake forecast is not a cancellation by itself. High wind, fog, and ice cancel more often. Check the ferry operator if you are walking on, and the marine forecast if you are taking your own boat.
We quote wave definitions from the National Weather Service Cleveland Open Lake Forecast for Lake Erie (product GLF). Nearshore practice follows the NWS Cleveland marine page and the Nearshore Marine Forecast (product NSH). Buoy readings come from the National Data Buoy Center station pages for 45176, 45169 and 45164, checked October 3, 2026. Community clips from August 2026 match that reading: boaters calling a 2-foot forecast a miss were usually hitting the top of the spectrum, not a busted model. Always use the current issuance, not this page, for a go/no-go call.