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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

  Overview

Periods of heavy snowfall occurred across Yellowstone
National Park, and the Absaroka Mountains from Thursday
night through Saturday morning. At the same time very
strong mountain top winds were observed as well as between
Rock Springs to Casper. An Arctic cold front pushed south,
east of the Divide Friday with bitter cold temperatures in
the single digits above and below zero. South of this Arctic
front unseasonably warm temperatures were observed Friday with
Rock Springs tying a record high of 47 degrees. Another surge
of Arctic air on Saturday combining with a disturbance aloft 
produced a line of moderate to heavy snow east of the Divide
with most areas seeing 1 to 3 inches of new snowfall. 

 

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Snowfall Totals for December 29th and 30th
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Cody Snow Picture (courtesy of Jeremy J.)  Heavy snow in Casper Saturday Evening Contrast of temperatures at 3 PM Friday
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