Cloud seeding has resumed over the Sierra Nevada in hopes of increasing the winter snowpact, but La Nina might have other plans for the central California rainfall season. The Northern California Power Agency, which has conducted cloud seeding every year since 2006, has begun seeding a 74-square-mile watershed above New Spicer Reservoir in Tuolumne County above 6,500 feet, according Randy Bowersox, hydroelectric facilities manager for the power agency. The cloud seeding project, which commenced on Nov. 1, hopes to augment the winter snowpack runoff by at least 2 percent.