Rain is good for California, but the state was not prepared for what might be a megastorm. KQED’s Dan Brekke assesses the damage from the San Francisco Bay Area and the Pacific Institute’s Peter Gleick explains how we can be better prepared for future storms. This episode was produced by Siona Peterous and Hady Mawajdeh, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Efim Shapiro, and hosted by Sean Rameswaram. Transcript at vox.com/todayexplained Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices