The combination of a slow moving upper level low passing over Utah and Colorado, powerful jet dynamics, and favorable northerly upslope flow produced very heavy snow across portions of western and central Wyoming. Fremont and Natrona counties were the hardest hit areas. Around two feet of snow fell in Lander and the surrounding foothills with 12 to 18 inches around Riverton. The 15.4 inches of snow measured by the cooperative observer in Riverton was the most in a single storm since 1999. In Natrona County, 10 to 18 inches fell in and around Casper with up to 30 inches on Casper Mountain. More impressively, most of the snow in Natrona County fell in a 12-hour period. Widespread snowfall totals of 12 to 20 inches were recorded in the Wind River, Salt River, Wyoming, and Absaroka mountain ranges. The heavy snow, falling temperatures, and gusty wind of 15 to 25 mph combined to close several roads at the height of the storm. These roads included interstates 25 and 90, US Highway 20/26, and State Highway 28 over South Pass.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 29-MAR-16 22:00:00 to 30-MAR-16 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy snow fell throughout Natrona County, with highest amounts in the foothills of Casper Mountain. Total amounts ranged from 6 inches at Midwest, to 10.8 inches at the Casper airport, to 18 inches along Outer Drive.

Winter Storm in CASPER MOUNTAIN, WYOMING
From 29-MAR-16 22:00:00 to 30-MAR-16 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 30 inches of snow on Casper Mountain. The SNOTEL estimated 22 inches of new snow.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 28-MAR-16 22:00:00 to 30-MAR-16 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 28 over South Pass was closed for over 18 hours due to heavy snow and blowing snow.

Winter Storm in STAR VALLEY, WYOMING
From 28-MAR-16 00:00:00 to 29-MAR-16 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Trained spotters reported 6-8 inches of snowfall throughout the Star Valley.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 28-MAR-16 10:00:00 to 30-MAR-16 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The SNOTEL at Indian Creek measured 22 inches of new snow. The Kelly Ranger Station had 12 inches of new snow.

Winter Storm in UPPER WIND RIVER BASIN, WYOMING
From 28-MAR-16 17:00:00 to 29-MAR-16 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow fell across the Upper Wind River basin with common totals of 6 to 9 inches.

Winter Storm in WIND RIVER MOUNTAINS EAST, WYOMING
From 28-MAR-16 19:00:00 to 30-MAR-16 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Very heavy snow fell along the east slopes of the Wind River Range. Some of the heaviest amounts include 32 inches at the Hobbs Creek SNOTEL and 23 inches at Bruce's Campground in Sinks Canyon State Park.

Winter Storm in WIND RIVER BASIN, WYOMING
From 29-MAR-16 00:00:00 to 30-MAR-16 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

At the Riverton airport 16 inches of snow was measured. Around Riverton, 12 to 18 inches of snow was measured. Lighter amounts fell in Shoshoni where only 2.4 inches was measured.

Winter Storm in LANDER FOOTHILLS, WYOMING
From 28-MAR-16 22:00:00 to 30-MAR-16 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy snow fell in the Lander Foothills. One to two feet was commonplace with an official measurement of 19.4 inches at the Lander airport.

Winter Storm in ABSAROKA MOUNTAINS, WYOMING
From 28-MAR-16 20:00:00 to 30-MAR-16 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell in portions of the Absarokas. Some of the heaviest amounts included 19 inches at the Marquette and Kirwin SNOTEL sites.

Winter Storm in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 28-MAR-16 23:00:00 to 30-MAR-16 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A trained spotter measured 10 inches of snow at Jeffrey City.

Winter Storm in CODY FOOTHILLS, WYOMING
From 29-MAR-16 04:00:00 to 30-MAR-16 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Snowfall of 7.5 inches was recorded 2 miles southwest of Cody.

Winter Storm in SOUTHWEST BIG HORN BASIN, WYOMING
From 29-MAR-16 02:00:00 to 30-MAR-16 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Around Thermopolis 6 to 8 inches of snow was measured.

Winter Storm in BIGHORN MOUNTAINS SOUTHEAST, WYOMING
From 28-MAR-16 18:00:00 to 30-MAR-16 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several SNOTEL sites in the southeastern Bighorn Mountains recorded over a foot of new snow. The highest snowfall total was 14 inches at Cloud Peak.