CW3E AR Update: 8 November 2017 Outlook

November 8, 2017

Click here for a pdf of this information.

Two ARs Forecasted to Make Landfall over the U.S. West Coast in the Next Week

  • A strong AR is currently making landfall over the U.S. West Coast
  • This AR is expected to produce up to 6 inches of precipitation over northern CA
  • The southerly orientation of this AR will result in the heaviest precipitation over the north Central Valley
  • A second, moderate strength, AR is forecasted to make landfall over northern CA, OR, and WA on 12 November 2017
  • The second AR is expected to make landfall further north resulting in the highest precipitation over the Olympic and Cascade

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

Valid 1200 UTC 8 November – 1200 UTC 15 November 2017






Summary provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 12 PM PT Wednesday 8 November 2017

*Outlook products are considered experimental