Combining advanced flood mapping and atmospheric projections with data on California's geologic flood history, over 100 scientists calculated the probable consequences of a "superstorm" carrying tropical moisture from the South Pacific and dropping up to 10 feet of rain across the state.

"Floods are as much a part of our lives in California as earthquakes are," said Lucy Jones, the chief scientist for the United States Geological Survey's multi-hazards initiative, adding, "We are probably not going to be able to handle the biggest ones."

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