Lake Chelan draws thousands of visitors and residents to its shores each year. Whether the purpose is to fish, swim, boat or simply meander along its shores, the lake is a popular gathering place. It’s also a vital part of the Chelan County PUD network of hydroelectric resources.
A forecast of near normal runoff for 2014 makes it likely residents and Lake Chelan visitors will find conditions favorable for summer recreation this year. During refill this spring, the level of Lake Chelan is expected to be within or above the annual expected operating range for dry to average water years. Minimum (target) lake levels are expected to be met unless spring runoff is late.
This video shows how we measure snowpack to forecast our water supply outlook:
Information about lake levels is available in real time on this page. For those on the go, posters at boat launches and marinas and rack cards distributed throughout the Chelan-Manson-Chelan Falls community display a QR (Quick Response) code that offers a direct link to current lake level readings by using their smart phones and tablets.
Forecasted operating range based on a range of water years from 47% to 117% of average
Graph lines can be turned "on" and "off" by clicking on the legend names above, and a zoom function is enabled by clicking and dragging the mouse pointer over a section of the graph
Lake Chelan is the reservoir for the Lake Chelan Hydro Project. Managing the level of popular Lake Chelan requires balancing seven objectives in the operating license that together provide recreation, protect fish, reduce erosion and restore year-round flows to the Chelan River.
Managing the level of the lake is not an exact science. It involves a series of forecasts and calculations, with the added uncertainty of weather. However, updated tools and additional data will help us provide information that is more useful for residents and visitors.
Dec. 1: The level of Lake Chelan is unusually high for this time of year due to November rain. The general trend for December and January will be to lower the lake level by generating near maximum capacity.
Heavy rain may cause lake level to go up for a short time.
Targeting a Range
Chelan PUD estimates that during dry/average water years, LakeChelan can be operated within the expected range shown on the Dry/Average Water Years graph 90 percent of the timeand meet the District’s seven license operating objectives in most years.
We are committed to letting you know about any changes in expected lake levels as soon as we can so residents and visitors know what to expect. We welcome your comments or questions about Lake Chelan levels.
The District expects to maintain a range of 1,085 to 1,100 feet above sea level during dry or average water years. In wet water years lake level could fall to 1,083 feet or lower (the license minimum is 1,079 feet) as more room is needed for increased runoff. Factors that can affect lake level management include:
We are sensitive to the needs of the many users of Lake Chelan. Below are the elevations at the bottom of each concrete boat ramp. As lake levels fluctuate, boaters are asked to take these elevations into consideration before launching a boat.
|Elevation at |
End of Boat Ramp
|Chelan Riverwalk Park||Chelan PUD||Chelan||2 concrete ramps||1080.5 feet|
|Lake Chelan State Park||WA State Parks||Chelan||1 concrete ramp||1090.0 feet|
|City of Chelan||Chelan||2 concrete ramps||1090.0 feet|
|Manson Bay Park||Manson Parks||Manson||1 concrete ramp||1077.9 feet|
|Old Mill Park||Manson Parks||Manson||4 concrete ramps||1082.9 feet|
|25-Mile Creek State Park||WA State Parks||Chelan||2 concrete ramps||1093.0 feet|