They report that "Geographic data indicates California has a mega flood about every 100 to 200 years," meaning we could even be overdue for another one — and the relatively minor inconveniences and small number of casualties we've seen as a result of the past six weeks' storms are negligible compared to the massive destruction the state could have in the future, climate change or not.http://sfist.com/2017/02/08/california_could_be_overdue_for_a_1.php