Your PUD

Lake Chelan Lake Levels


Under the terms of its federal license, Chelan County PUD shall make a reasonable effort to comply with the lake level management practices defined in the Lake Level Plan in Settlement Agreement License Article 405.
Future Operation
Refilling of Lake Chelan continues. If forecasted weather conditions occur Lake Chelan is expected to reach elevation 1,099 on Saturday, July 5. It is also expected that the lake will continue to fill through early July. The maximum lake elevation allowed under the new operating license is 1,100 feet. Generation is scheduled at maximum output of 54 MW, with occasional scheduling between 8 MW and 54 MW in order to coordinate with Columbia River operations and respond to market conditions. Spill is expected to continue for several weeks. 
Current Lake Level (Lakeside Gauge)

Friday, August 8, 2008 11:55 AM: 1099.51 feet above sea level

Last 10 Days

For the 10 days ending 8/7/2008, the daily lake elevation (in feet) has been:

 Date   Level   Change 
  Jul 29     1099.87     -0.01  
  Jul 30     1099.88     0.01  
  Jul 31     1099.87     -0.01  
  Aug 01     1099.75     -0.12  
  Aug 02     1099.75     0.00  
  Aug 03     1099.65     -0.10  
  Aug 04     1099.62     -0.03  
  Aug 05     1099.58     -0.04  
  Aug 06     1099.53     -0.05  
  Aug 07     1099.52     -0.01  
Lake Chelan Reservoir Graph

To see data points, first click on the chart and then hover over a spot on the line.
You can also view larger versions of this chart or a year-to-date chart.

Actual lake elevations may vary significantly from expected averages during drawdown and refill periods. Many factors affect lake elevations including precipitation, temperature, snowpack conditions, volume and timing of spring runoff, the need to simultaneously meet seven operating objectives and the goal to meet target elevations May through September.
Other Information

Web site for Stehekin River flow