Two middle and upper level troughs moved across the region with an associated cold front and jet entrance regions providing enough lift and moisture to produce widespread snow and low visibility across the region. Much of the lower elevations received over 6 inches of snowfall. The Sierra Madre and Snowy Range had SNOTELs over 10,000 feet measuring over 20 inches of snowfall and 3 inches of snow water equivalent.

Heavy Snow in SHIRLEY BASIN, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 23:00:00 (MST-7)
Reported by: COOP Observer

Observer located five miles east-northeast of Shirley Basin measured a storm total of 8.0 inches of snowfall.

Heavy Snow in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 22:00:00 (MST-7)
Reported by: Trained Spotter

Observer located four miles northeast of Centennial measured 6.0 inches of snowfall.

Heavy Snow in NORTH LARAMIE RANGE, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 23:00:00 (MST-7)
Reported by: Other Federal Agency

Sensor located eleven miles north-northeast of Garrett had estimated snowfall total of a foot of snow.

Heavy Snow in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 11:00:00 (MST-7)
Reported by: Trained Spotter

Observer located fifteen miles west-southwest of Bordeaux measured 6.0 inches of snowfall.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 29-APR-19 10:40:00 to 30-APR-19 12:00:00 (MST-7)
Reported by: Official NWS Observations

Cheyenne office staff measured 7.3 inches of total snowfall.

Heavy Snow in CENTRAL CARBON COUNTY, WYOMING
From 29-APR-19 14:00:00 to 30-APR-19 20:00:00 (MST-7)
Reported by: Public

Observer in Rawlins measured an estimated 7.0 inches of snowfall.

Heavy Snow in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 30-APR-19 14:00:00 to 30-APR-19 23:59:00 (MST-7)
Reported by: Public

Observer in Douglas reported storm total of 7.0 inches of snow.

Heavy Snow in NIOBRARA COUNTY, WYOMING
From 30-APR-19 14:00:00 to 30-APR-19 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Observer in Lusk measured storm total snowfall of 6.5 inches.

Heavy Snow in FERRIS/SEMINOE/SHIRLEY MOUNTAINS, WYOMING
From 30-APR-19 14:00:00 to 30-APR-19 23:59:00 (MST-7)
Reported by: Trained Spotter

Observer located one mile south-southwest of Muddy Gap measured a storm total snowfall of 6.0 inches.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 11:00:00 (MST-7)
Reported by: CoCoRaHS

Several observers in Laramie measured over 5 inches with local higher totals reaching above 6 inches with drifting affecting totals.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 11:00:00 (MST-7)
Reported by: Trained Spotter

Observer at the Terry Bison Ranch nine miles south of Cheyenne measured a snowfall total of 6.0 inches.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 29-APR-19 06:00:00 to 30-APR-19 23:00:00 (MST-7)
Reported by: SNOTEL

Old Battle sensor located at 10,000 feet ten miles west-southwest of Encampment measured an estimated 32.6 inches of snowfall with over 3 inches of snow water equivalent.

Heavy Snow in SNOWY RANGE, WYOMING
From 29-APR-19 06:00:00 to 30-APR-19 23:00:00 (MST-7)
Reported by: SNOTEL

Sensors at North French Creek and Med Bow both at elevations above 10,000 feet measured over 20 inches of total snowfall with over 2.5 inches of snow water equivalent.

Heavy Snow in UPPER NORTH PLATTE RIVER BASIN, WYOMING
From 29-APR-19 16:00:00 to 30-APR-19 22:00:00 (MST-7)
Reported by: COOP Observer

Observer located three miles north of Saratoga measure 7.0 inches of snowfall.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 29-APR-19 17:00:00 to 30-APR-19 10:00:00 (MST-7)
Reported by: SNOTEL

Crow Creek sensor at an elevation of 8330 feet measured an estimated amount of 15.5 inches of snowfall using a roughly 12 to 1 snow ratio.