California Megaflood: Lessons from a Forgotten Catastrophe
A 43-day storm that began in December 1861 put central and southern California underwater for up to six months, and it could happen again
Stories by B. Lynn Ingram
Megastorms Could Drown Massive Portions of California
Huge flows of vapor in the atmosphere, dubbed "atmospheric rivers," have unleashed massive floods every 200 years, and climate change could bring more of them