CW3E AR Update: 13 February 2017 Outlook

February 13, 2017

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Two ARs Forecast to Impact the West Coast

• Potentially moderate AR conditions to impact the Pacific Northwest and Northern CA on 15–16 Feb.
• Up to 5 inches of precipitation could fall over the next 72-hrs over the Coastal Ranges
• Although forecasts are more uncertain, a second AR is likely to impact most of CA from late 16 Feb through early 18 Feb
• 7-day precipitation forecasts are as high as 7.6 inches over Northern CA and 6.5 inches over Southern CA

Click IVT or IWV image to see loop of 0-132 hour GFS forecast Valid 1200 UTC 13 Feb – 0000 UTC 19 Feb 2017

Summary provided by C. Hecht and F.M. Ralph; 3 PM PT Mon 13 Feb. 2017