Note that warm air holds more moisture, and warm water evaporates faster. So global warming results in more moisture in the air. When the air comes in contact with cooler air, as when it runs into a mountain and is pushed higher, the result is larger amounts of precipitation - rain, snow, sleet, hail.http://www.wunderground.com/blog/weatherhistorian/comment.html?entrynum=273
By: Christopher C. Burt, Weather Historian, May 13, 2014
An exceptionally heavy snowfall buried many locations in Colorado and Wyoming the past few days. In the mountains two to three feet accumulated and even low elevations saw near record snowfall amounts for this time of the year.
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The most remarkable snowfall totals were in Wyoming where a site 19 miles WSW of Encampment picked up an astonishing 43.0” between 2 p.m. Saturday (May 10) and 9 a.m. Monday (May 12). Cheyenne, Wyoming had a 10.5” calendar day accumulation on May 11th (Sunday) and a 12.0” storm total (Sunday-Monday), the heaviest snowfall for so late in the season since snowfall records began in 1883. Just a week earlier (on May 4th) the temperature had been 79°.
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