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Atmospheric river to strike California: “A genuinely terrible system”

An atmospheric river, or strip of deep tropical moisture with torrential downpours and strong winds, is set to blast California. A parade of atmospheric rivers has been lashing the West Coast, producing near-record rainfall. This one could continue a waterlogged pattern that could persist for 10 days or more. The weekend’s atmospheric river deluge unloaded torrential rain, closing major highways and breaching levees. San Francisco recorded its second-wettest calendar day since 1849 on Dec. 31.