A deepening low pressure system and frontal boundary moved across the region producing widespread high winds across southeastern Wyoming with light snowfall while in Carbon County blizzard conditions were reported by Arlington stopping traffic for a period of time. Heavy snow was reported in the mountain ranges in the area with close to two feet in the highest spots of the Snowy Range. A hunter out in the Sierra Madre Range went missing during the storm and his body has yet to be recovered.

High Wind in FERRIS/SEMINOE/SHIRLEY MOUNTAINS, WYOMING
From 19-OCT-19 23:30:00 to 20-OCT-19 03:30:00 (MST-7)
Magnitude: 60.00 MG
Reported by: Unknown

The HADS sensor at the Seminoe Dam measured the reported wind gust.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 20-OCT-19 04:00:00 to 20-OCT-19 05:20:00 (MST-7)
Magnitude: 54.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor at Bordeaux  or nine miles south of Wheatland along Interstate 25 measured the reported wind gust.

High Wind in EAST PLATTE COUNTY, WYOMING
From 20-OCT-19 13:22:00 to 20-OCT-19 15:28:00 (MST-7)
Magnitude: 61.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor along Interstate 25 at Coleman or thirteen miles south of Glendo measured the reported wind gust.

High Wind in SOUTH LARAMIE RANGE, WYOMING
From 20-OCT-19 08:00:00 to 20-OCT-19 11:06:00 (MST-7)
Magnitude: 53.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor along Interstate 80 at the Buford East site measured the reported wind gust.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 20-OCT-19 02:30:00 to 20-OCT-19 11:08:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor along Interstate 25 at Wyo Hill or ten miles southwest of Cheyenne measured the reported wind gust. A nearby Union Pacific Railroad sensor fourteen miles west-southwest measured a 86 mph wind gust during this period as well.

High Wind in CENTRAL LARAMIE COUNTY, WYOMING
From 20-OCT-19 08:48:00 to 20-OCT-19 10:52:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor along Interstate 25 at Bear Creek or eight miles south of Chugwater measured the reported wind gust. In addition, the Cheyenne Airport ASOS also measured a max wind gust of 61 mph during this same period.

High Wind in EAST LARAMIE COUNTY, WYOMING
From 20-OCT-19 11:30:00 to 20-OCT-19 15:58:00 (MST-7)
Magnitude: 51.00 MG
Reported by: AWOS

The sensor at Pine Bluffs Airport measured the reported wind gust.

High Wind in NIOBRARA COUNTY, WYOMING
From 20-OCT-19 15:08:00 to 20-OCT-19 16:08:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Department of Highways

Wyoming Department of Transportation sensor along US 20 seven miles west-northwest of Van Tassel measured the reported wind gust.

Heavy Snow in SNOWY RANGE, WYOMING
From 19-OCT-19 19:00:00 to 21-OCT-19 11:00:00 (MST-7)
Reported by: SNOTEL

Medicine Bow sensor had estimated snowfall measurement of 22.5 inches. Several other sensors in the zone also measured over a foot of snow during the event.

Blizzard in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 20-OCT-19 05:54:00 to 20-OCT-19 12:20:00 (MST-7)
Reported by: Department of Highways

The Wyoming Department of Transportation sensor along Interstate 80 at Arlington measured the blizzard conditions with highest wind gusts in that period reaching to 56.5 mph just shy of High Wind Warning Criteria. The interstate was closed to traffic during this time and subsequent hours after to allow crews to clear the roadway.

Heavy Snow in NORTH LARAMIE RANGE, WYOMING
From 19-OCT-19 19:00:00 to 21-OCT-19 00:27:00 (MST-7)
Reported by: SNOTEL

La Prele Creek sensor had estimated snowfall amount of 13.2 inches based on the measured snow water equivalent and ratio of 12 to 1.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 19-OCT-19 19:00:00 to 21-OCT-19 11:00:00 (MST-7)
Reported by: Law Enforcement

Heavy snow accumulations were estimated by several area sensors including the Blackhall Mountain with 16.5 inches of snowfall and the Webber Springs with 12.0 inches. A huntsman went missing during the snowstorm prompting area search and rescue, cadaver dogs and civil air patrols in hopes of finding and recovering the individual. After a week of searching, the Carbon County Sheriff's Office suspended the operations. Given that the individual has not been recovered, a proper autopsy to determine likely cause of death remains unknown though given the winter elements of wind, snow and subsequent freezing temperatures, assumption will be made to declare the fatality as direct.