Winter Storm Aiden brought the first snow of the season to the Denver metro area, but its heavy, wet snow in parts of Wyoming, Colorado and western Nebraska triggered scattered power outages, not to mention travel headaches in the region.
Aiden was a quick-hitting winter storm, partially spawned by a southward dip in the jet stream sweeping into the Rockies. The cold air supplied by that jet stream dip, combined with an upslope northeast surface wind flow, is producing the snow along the Interstate 25 corridor, including in Denver and Cheyenne, Wyoming, as well as parts of the High Plains of western Nebraska and eastern Colorado.
This was Denver's earliest first snow of the season since 2012. 2016's first measurable snowfall in the Mile High City didn't occur until Nov. 17. The long-term average first measurable snow of the season in Denver is Oct. 18.
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| Areas affected by Winter Storm Aiden |
https://weather.com/storms/winter/news/2017-10-08-winter-storm-aiden-denver-forecast-snowstorm
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