The first runoff forecast of the season for the Lake Chelan Basin is now posted on the PUD website. The amount of runoff is forecast at 100 percent of average. Scott Buehn, PUD resource engineer/analyst, based his calculations on a range of information and analysis including automated Snotel data and snowpack measurements collected last week during a helicopter trip into the mountains above Lake Chelan.
The forecast will be updated on March 1 and April 1. Last year the actual runoff from snow melt into Lake Chelan from April 1-July 31 was 126 percent of average.
The elevation of Lake Chelan on Feb. 1, 2012, was 1087.5 feet above sea level, which is 0.4 feet higher than the expected average under the current operating license and 0.5 feet lower than last year.
Generation at the Lake Chelan Hydro Project will be managed this winter and spring with the intent of meeting operating objectives in the Lake Chelan Hydro Operating License as well as minimum lake elevation targets.
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