Atmospheric rivers are a vital part of California's water cycle, replenishing reservoirs and sustaining ecosystems across the state. But the power of this weather phenomenon can also be destructive, and with climate change and a warming planet, they’re getting more intense and unpredictable. Read more: https://www.sfchronicle.com/weather-forecast/article/storms-fujiwhara-atmospheric-river-california-19932994.php Subscribe to our channel: http://bit.ly/2Svdkii — The San Francisco Chronicle delivers the Bay Area’s best journalism every day. Our mission is to tell the story of San Francisco — the city whose people change the world. We will inform, inspire and provoke while being honest, fearless and startlingly original. You can support our newsroom by signing up for a membership at http://SFChronicle.com/subscribe.