From The Mercury News – Key part of state water supply was 22% full 16 months ago, now is 65% full. One of the best places to see how dramatically big storms this winter have changed California’s water picture is three hours north of the Bay Area in the foothills east of Sacramento Valley. There, Lake Oroville, the second-largest reservoir in California and a key component of the state’s water system, has undergone a breathtaking transformation. Sixteen months ago, the reservoir was so parched from severe drought that it was just 22% full. For the first time since it opened in 1967, its power plant had shut down because there wasn’t enough water to spin the turbines and generate electricity. Now Oroville reservoir is 65% full. Since its lowest point on Sept. 30, 2021, the massive lake’s level has risen 182 feet, boosted by nine atmospheric river storms in January. (more)