CW3E Event Summary: 14-17 March 2020

March 19, 2020

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Cutoff low brings much-needed rainfall and mountain snowfall to California

  • Heavy precipitation in Central and Northern California was associated with a slow-moving cutoff low near the U.S. West Coast
  • More than 2 feet of snow fell across the Central and Northern Sierra Nevada, with the highest snowfall totals (> 4 feet) west of Lake Tahoe
  • Sections of the Central California Coast Ranges and western Transverse Ranges received more than 3 inches of rainfall

Click 500-hPa Absolute Vorticity or IWV image to see loop of GFS analyses

Valid 0000 UTC 14 March – 0000 UTC 18 March 2020






Summary provided by C. Castellano, C. Hecht, B. Kawzenuk, and F. M. Ralph; 19 March 2020