CW3E AR Update: 14 November 2017 Outlook

November 14, 2017

Click here for a pdf of this information.

Two ARs Forecast to Impact the USWC over the Next Week

  • An AR currently impacting the Pacific Northwest is expected to end in the next several hours
  • A potentially strong AR (IVT >750 kg m-1 s-1) is forecast to impact California between 15 and 17 November
  • A second AR is forecast to make landfall over the USWC between 19 and 21 November 2017
  • Precipitation forecasts range from 5–8 inches over higher elevations associated with the first AR
  • Forecast uncertainty is currently high for the 19–21 November AR

Click IVT or IWV image to see loop of 0-168 hour GFS forecast

Valid 1200 UTC 14 November – 2100 UTC 21 November 2017






Summary provided by C.Hecht, B. Kawzenuk, J. Kalansky, and F.M. Ralph; 1 PM PT Wednesday 14 November 2017

*Outlook products are considered experimental