CW3E AR Update: 16 March 2017 Outlook

March 16, 2017

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Two ARs Forecast to Impact West Coast Over the Next Week

  • First AR to make landfall over Oregon Friday morning and primarily impact the Pacific Northwest and Northern CA
  • Second AR is forecast to impact Oregon and Northern CA beginning Monday Morning
  • Coastal Oregon could potentially experience strong AR conditions around 8 PM PDT Friday associated with first AR
  • Second AR could bring moderate AR conditions to Northern California but forecast confidence is currently low
  • Precipitation forecasts range from 2 to 4.8 inches over the high elevations of Northern California and the Pacific Northwest

Click IVT or IWV image to see loop of 0-150 hour GFS forecast

Valid 1200 UTC 16 March – 1800 UTC 22 March 2017






Summary provided by C. Hecht and F.M. Ralph; 1 PM PT Thurs 16 March 2017