Extreme Cold/Wind Chill in Debeque To Silt Corridor, Colorado

The KRIL ASOS in Rifle recorded an one hour period where temperatures were below 25F and winds were sufficient to produce wind chill values below 15F. Winds during this period did not meet the 10 mph threshold, but the wind chills produced were cold enough to warrant recording. Temperatures ranged from 9F to 12F, and wind speeds ranged from 6 mph to 8 mph. The coldest wind chill value recorded was -4F. No reports of injuries, damages, or fatalities were received.

A cold front ushered in an arctic airmass on the evening of January 17th, as well as bringing widespread wind and snow to eastern Utah and western Colorado. This arctic airmass was reinforced over the course of the next week by several passing waves with their own associated cold fronts. Temperatures during this period were 15-20 degrees below normal, and in some places close to 30 degrees below normal. With temperatures this cold, any amount of wind would produce a dangerously cold wind chill. The coldest period of this event was January 20th to the 22nd, with temperatures finally beginning to moderate after the 23rd.