CW3E Event Summary: 19-22 December 2019

December 29, 2019

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Landfalling AR brings heavy rainfall and mountain snowfall to the Pacific Northwest

• AR conditions persisted for 24–48 hours over coastal and interior sections of the Pacific Northwest
• Some locations along the coast of Oregon and Northern California experienced AR conditions for more than 48 hours
• Storm total precipitation exceeded 5 inches over much of western Oregon and western Washington
• More than 2 feet of snow fell in the highest elevations of the North Cascades

Click IVT or IWV image to see loop of GFS analyses Valid 1200 UTC 18 December – 1200 UTC 22 December 2019


 

 

 

 

Summary provided by C. Castellano; 29 December 2019