Dr. Marty RalphIntroduction: You can’t row a boat in an atmospheric river, but it is a powerful force of nature that transports massive volumes of water vapor. The director of the Center for Western Weather and Water Extremes at Scripps Institution of Oceanography Dr. Marty Ralph is a pioneer in the study of atmospheric rivers affecting the Western US and has been leading the development of a category scale, like the hurricane saffir-simpson scale, to classify the strength of atmospheric rivers. He’s here today to talk about atmospheric rivers, the scale, and why it's important for forecasting and communication. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.