Key California Precipitation Index Hits Record Yearly Level After Only 7 Months

April 13, 2017

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A key index of California precipitation observations at eight stations in the Northern Sierra Nevada has set a new record high level after less than 7 months, beating the previous record that took 12 months of accumulation to set. A series of atmospheric rivers (ARs) that brought heavy precipitation to the state, especially in Jan and Feb, largely accounts for the record total accumulation.

Summary provided by F.M. Ralph, D. Pierce, C. Hecht, M. Dettinger, and D. Cayan; 2 PM PT Thursday 13 April 2017