Posts tagged: water year

California releases fourth snowpack survey

The California Department of Water Resources announced that the results from the fourth of five surveys confirming below-normal water year conditions.

“An unusually wet March improved conditions, but did not make up for the previous dry months,” said DWR Director Mark Cowin.

The average water content of California’s snowpack was still only 55 percent of the expected April 1 normal. The relative composition of the Sierra Nevada snowpack, from which¬†Western’s Central Valley Project receives snowmelt,¬†was 78 percent of April 1 normal for the northern Sierras, 55 percent of the April 1 normal for the central Sierras and 39 percent of the April 1 normal for the southern Sierras. At the same time last year, the snowpack water content showed 173 percent of the April 1 average for the northern Sierras, 161 percent in the central Sierras, and 155 percent for the southern Sierras.

Both the State and Federal water projects have announced reduced deliveries for the upcoming water year.

“The reduced water deliveries are expected to result in reduced hydropower generation output for the Central Valley and State Water Projects,” said Western’s Sierra Nevada Region Power Marketing Manager Sonja Anderson. “However, the impact of reduced water deliveries is somewhat mitigated by last year’s above-normal precipitation, which has resulted in higher than average starting reservoir storage levels.”