National Weather Service United States Department of Commerce

Tracking Two Storms Impacting the Northern U.S. Through Thanksgiving and into This Weekend

Heavy lake effect snow, gusty winds, and localized blizzard conditions will persist through Thanksgiving near and downwind of the Great Lakes. Rain and mountain snow are forecast for the Pacific Northwest. Confidence is increasing for another winter storm to develop over the northern and central Rockies Friday and track across the central Plains through the Midwest and Great Lakes this weekend. 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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