During the morning to early afternoon hours, an intense low pressure system moved away from the Colorado Front Range and across Eastern Colorado. This system was responsible for generating two rounds of high winds. The high winds gusted between 40 to 110 mph over a period of approximately 5.5 hours. The high winds were able to knock down numerous power poles and damage numerous trees across Cheyenne County. Both rounds of high winds were able to generate dust storm conditions; one before and one along a cold front that moved east-northeast across South-Central Colorado into Northwest Kansas. The high winds were also able to spark a 125 acre wildfire in a corn field that caused damage to an irrigation pivot and power poles.

High Wind in CHEYENNE COUNTY, COLORADO
From 15-DEC-21 08:59:00 to 15-DEC-21 12:20:00 (MST-7)
Magnitude: 96.00 EG
Reported by: Emergency Manager

Two rounds of high winds occurred over Cheyenne County. The high winds were able to cause damage to an unknown number of power poles and trees across the county with gusts up to 110 mph. Mesonets across the county recorded wind gusts of 58-84 mph, with the strongest recorded gust located near Firstview, Colorado.

High Wind in KIT CARSON COUNTY, COLORADO
From 15-DEC-21 09:32:00 to 15-DEC-21 13:30:00 (MST-7)
Magnitude: 77.00 MG
Reported by: Mesonet

Two rounds of high winds occurred over Kit Carson County. Mesonets across the county recorded wind gusts of 58-89 mph, with the strongest recorded gust located near Peconic, Colorado.

High Wind in YUMA COUNTY, COLORADO
From 15-DEC-21 10:34:00 to 15-DEC-21 14:30:00 (MST-7)
Magnitude: 63.00 MG
Reported by: Mesonet

Two rounds of high winds occurred over Yuma County. Mesonets across the county recorded high wind gusts of 60-73 mph, with the strongest recorded gust located near Heartstrong, Colorado. There was a report on social media of a power outage near the town of Idalia for one hour around 1 PM MST; however, no power poles or lines were reported down.

Dust Storm in CHEYENNE COUNTY, COLORADO
From 15-DEC-21 08:59:00 to 15-DEC-21 12:20:00 (MST-7)
Reported by: Public

Two rounds of high winds with estimated wind gusts up to 110 mph created a dust storm with visibility as low as 1/8 of a mile at times.

Dust Storm in YUMA COUNTY, COLORADO
From 15-DEC-21 10:00:00 to 15-DEC-21 14:30:00 (MST-7)
Reported by: Public

Two rounds of high winds with gusts up to 73 mph created a dust storm with visibility as low as 0 miles at times. The worst visibility was reported in the eastern half of Yuma County near the towns of Idalia and Wray.

Wildfire in CHEYENNE COUNTY, COLORADO
From 15-DEC-21 09:49:00 to 15-DEC-21 11:52:00 (MST-7)
Property damage: 200.00K
Reported by: 911 Call Center

High winds knocked over a power pole in a corn field, sparking a fire along County Road N south of Cheyenne Wells. The fire burned 125 acres, damaging an irrigation pivot and burning an unknown number of power poles near the field.

Dust Storm in KIT CARSON COUNTY, COLORADO
From 15-DEC-21 10:00:00 to 15-DEC-21 13:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two rounds of high winds gusting up to 89 MPH caused dust storm conditions to occur across the county, with visibilities dropping to a quarter mile or less.  Visibility reductions are based on visibility reports in Cheyenne and Yuma counties, and Sherman County in Kansas.