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California Drought
California drought could end with storms known as atmospheric rivers
California drought could end with storms known as atmospheric rivers

California's drought crept in slowly, but it could end with a torrent of winter storms that stream across the Pacific, dumping much of the year's rain and snow in a few fast-moving and potentially catastrophic downpours. Powerful storms known as atmospheric rivers, ribbons of water vapor that extend for thousands of miles, pulling moisture from the tropics and delivering it to the West Coast, have broken 40% of California droughts since 1950, recent research shows. "These atmospheric rivers — their absence or their presence — really determine whether California is in drought or not and whether floods are going to occur," said F. Martin Ralph, a research...

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