With so much rain and snow lately, how is California capturing all the water?

California got about 18 trillion gallons of rain in February, which is enough to fill 27 million Olympic-sized pools. California’s Sierra Nevada got 500 inches of snow -- about as tall as a three-story building. These wet winter storms have also led to severe flooding along the Russian River in Northern California. In Southern California, where is all this water going? What’s being done to capture this precious resource?