A Snowy Beginning to May - Summary of Spring Storm

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Summary | Snowfall Totals | Reporting Snowfall | Safety

A couple strong spring storms affected the Cowboy State to end April and begin May.  The first system on Monday produced very strong westerly winds ahead of a Canadian cold front, and strong northwest winds in wake of the cold front Monday night.  Precipitation with this initial system was mainly on the light side. On the heels of the first storm, a stronger storm system affected the Cowboy State Tuesday and Wednesday.  Snow broke out early Tuesday evening across much of central and northern Wyoming as well as portions of western Wyoming later in the evening.  The snow quickly expanded and intensified across the Wind River Basin and Natrona county Tuesday evening with lighter snowfall across the Big Horn Basin and Johnson County.  The snow lingered through much of the day Wednesday, but was much lighter.  The heaviest snowfall occurred in the Lander Foothills where 10 to 16 inches of snow accumulated.  During the predawn hours Wednesday, a relatively narrow area of heavy snow developed along the stalled frontal boundary across the Upper Green River Basin affecting Big Piney and Marbleton.  A foot of snow fell in that area.  Please see the snowfall summary below for more snow totals.

Wind reports from the strong winds that occurred Monday.

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Snowfall Totals For 5/1 Storm
County Station Name Snowfall
Big Horn Bone Springs Divide Snotel 6
Big Horn Shell Creek Snotel 2
County Station Name Snowfall
Fremont 6 SW Lander 18.7
Fremont Lander Area
Fremont Lander Airport 13.1
Fremont Townsend Creek Snotel 13
Fremont Hudson 10
Fremont Fort Washakie 9
Fremont 7 ESE Kinnear 7
Fremont Hobbs Park Snotel 7
Fremont Riverton 6.2
Fremont Jeffrey City 6
Fremont Burroughs Creek Snotel 6
Fremont 2 W Riverton 5.5
Fremont South Pass Snotel 5
Fremont Deer Park Snotel 5
Fremont St. Lawrence Alt Snotel 5
Fremont Riverton ASOS 4.6
Fremont Shoshoni 4.1
Fremont Cold Springs Snotel 4
Fremont Sweetwater Station 3.2
Fremont Castle Creek Snotel 3
Fremont Burris 2
Fremont Boysen Dam 1
Fremont Dubois 0.5
County Station Name Snowfall
Hot Springs Owl Creek Snotel 6
Hot Springs 9 NE Thermopolis 5.3
Hot Springs Thermopolis 4
County Station Name Snowfall
Johnson Cloud Peak Reservoir Snotel 6
Johnson Little Goose Snotel 5
Johnson Hansen Sawmill Snotel 5
Johnson Bear Trap Meadow Snotel 4
Johnson Soldier Park Snotel 4
Johnson 17 NNW Kaycee 2
Johnson 20 S Buffalo 1
Johnson 4 SSW Buffalo 0.5
Johnson Buffalo 0.4
County Station Name Snowfall
Lincoln 23 NNW Frontier 6
Lincoln Cottonwood Creek Snotel 4
Lincoln Indian Creek Snotel 4
Lincoln 5 NNE Thayne 2
Lincoln 2 SE Thayne 1.5
Lincoln Afton 1
Lincoln 3 SE Bedford 1
County Station Name Snowfall
Natrona Casper Area
Natrona Bessemer Bend 5.9
Natrona Reno Hill Snotel 5
Natrona Casper Mountain 5
Natrona Casper Airport 4.7
Natrona 11 ESE Casper 4.5
Natrona Casper Mountain Snotel 4
Natrona Grave Spring Snotel 3
Natrona Powder River School 2.5
Natrona 10 WSW Casper 2.5
Natrona Midwest 0.5
County Station Name Snowfall
Park Timber Creek Snotel 16
Park Marquette Snotel 10
Park Blackwater Snotel 6
Park 3 NE Sunshine 4.5
Park Younts Peak Snotel 3
Park Wolverine Snotel 3
Park 2 WSW Cody 1
Park Meeteetse 0.3
County Station Name Snowfall
Sublette Big Piney 12
Sublette Marbleton 11
Sublette Boulder Rearing Station 4
Sublette Gunsite Pass Snotel 2
Sublette 13 SE Pinedale 1.9
County Station Name Snowfall
Teton Jackson Hole-Rendezvous Bowl 9
Teton 3 SSW Wilson 8
Teton Phillips Bench Snotel 7
Teton Teton Pass 6.5
Teton Jackson Hole-Raymer 6
Teton Togwotee Pass Snotel 6
Teton Jackson Hole-Mid 6
Teton 5 NW Jackson 5.8
Teton Base Camp Snotel 4
Teton Jackson Hole-Base 4
Teton Moose 3
Teton 2 NE Teton Village 2.8
Teton Grand Targhee Snotel 2
Teton Togwotee Mountain Lodge 2
Teton Togwotee Pass 2
County Station Name Snowfall
Washakie 5 NNW Ten Sleep 5.6
Washakie Powder River Pass Snotel 5
Washakie 16 SSE Ten Sleep 4
Washakie 1 ESE Worland 3
Washakie 8 SW Worland 3
Washakie 27 S Ten Sleep 2.4
Washakie Middle Powder Snotel 2
County Station Name Snowfall
Yellowstone Two Ocean Plateau Snotel 4
Yellowstone Yellowstone East Entrance 0.5


April 30th and May 1st 2013 Snowfall Map A zoomed in snowfall map
Snowfall Totals for April 30th and May 1st 2013 A zoomed in image of the snowfall totals.


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