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Wind chill values expected near zero in Casper Saturday; blizzard conditions Friday in southeast Wyoming

"20% Chance of Flurries" by Chris Navarro in downtown Casper 12/28/20 (Oil CIty Staff)

CASPER, Wyo. — Wind chill values are expected to be around zero Saturday in Casper as seasonable temperatures combine with high winds, according to the National Weather Service (NWS) in Riverton. High winds and blowing snow are creating blizzard conditions in southeast Wyoming.

A high wind warning is in effect in central Wyoming from 7 a.m. to 11 p.m. Saturday. Winds 25 to 40 mph with gusts up to 60 mph are expected in Natrona County, the Green Mountains and Rattlesnake Range.

National Weather Service (NWS)

“Winds decrease slightly after sunset Saturday, but remain gusty overnight into Sunday morning, the NWS said.”

A blizzard warning is in effect in southeast Wyoming for late Friday through Saturday, taking effect at 8:00 p.m.

“Widespread blowing snow will cause significant reduction in visibility and whiteout conditions,” the NWS said. “The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes.”

Impacted areas include:

  • Central Carbon County (including Rawlins)
  • North Snowy Range foothills (including Arlington/Elk Mountain)
  • Central Laramie range (including the Bordeaux area in between Wheatland and Chugwater)

This includes Interstate 80 between Arlington and Elk Mountain, which is currently closed in both directions. Gusts over 65 mph are possible Friday night through Sunday afternoon.

National Weather Service (NWS)

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