The atmosphere is shaping up for a white Christmas this year. A well developed storm system is expected to track east across the central and southern rockies Wednesday night through Thursday night... although the exact track of the storm is still rather uncertain. However... confidence is high enough at this time that sufficient enough atmospheric ingredients will come together to produce a likelihood of measurable snowfall across western and central Wyoming Wednesday night through Thursday night... with the bulk of the snowfall falling on Christmas day.
Snowfall totals by Friday morning are expected to range from 6 to 12 inches in the western Wyoming mountains... around 6 inches in the western valleys... 5 to 10 inches in the mountains east of The Divide and 2 to 4 inches at the lower elevations east of The Divide. During the next few days... the finer details of the storm will unfold.
If you plan on traveling on Christmas eve or Christmas day... be prepared for slick and snow covered roads and poor visibility. Bring extra food and water along with a winter survival kit. Try to reach your destination before the snow flies if at all possible so that you can enjoy the snowfall in the Comfort of your friends or families home.
Statement as of 05:46 PM MST on December 22, 2014
... Record daily maximum precipitation set at Riverton WY...
unstable air behind a recent upper level disturbance brought bands of snow across the region today. A record precipitation of 0.02 inches was set at Riverton WY today. This ties the old record of 0.02 set in 2004. Note the precipitation records for the Riverton site only date back to 1995.
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