Increased runoff means payoff for Upper Colorado River Basin and customers. With inflow increasing, reliable electricity generation becomes more of a reality. Water elevation at Lake Powell fluctuates in the course of the year, reaching its lowest point usually in March before runoff begins, and reaching its highest point in July when the spring runoff is done.
This year, Inflow (runoff) into Lake Powell peaked for the year at 54,000 cfs (as measured at the Cataract Canyon gauge) on June 11 and is now gradually declining. The elevation of Lake Powell is 3,633 feet currently and has increased about 14 feet (yeah) from its lowest point earlier this spring. Releases from Lake Powell will be about 8.23 million acre-feet in 2010.
More information at Colorado River Storage Project Management Center.