Overview
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This last spring storm brought quite a lot of precipitation to many locations across Wyoming. The big winners so far are parts of Park and Natrona Counties for rainfall, with 2.5 to over 3 inches, and parts of the Wind River Mountains for snow seeing up to 20 inches! Many roads were also shut down for a period of time due to poor visibility and slick road conditions. As reports are received, snowfall and rainfall totals will be updated. |
 Snow Total Map, Click to enlarge |
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| 14" of snow in Sinks Canyon, 9.5 miles southwest of Lander | South Pass Camera | Closed section of I-80 on 5/18, Courtesy of WYDOT |
Snow Totals
...Final Storm Total Snowfall Totals from May 17-19, 2017... The following are final storm total snowfall reports from late Tuesday night through Friday morning. The bulk of the snow over far west and northwest Wyoming occurred late Tuesday night and Wednesday morning, while central and southern Wyoming was hardest hit late Wednesday night and during the day Thursday. SnoTELs (Snow Telemetry) are remote sensing sites in high mountain watersheds. Snowfall data from SNOTELS are estimated based on snow water equivalent. Location Snowfall Big Horn County... Bald Mountain Snotel... 6 inches. Shell Creek Snotel... 3 inches. Bone Springs Divide Snotel... 1 inch. Fremont County... Hobbs Park Snotel... 20 inches. South Pass Snotel... 19 inches. Townsend Creek Snotel... 19 inches. Cold Springs Snotel... 17 inches. Deer Park Snotel... 16 inches. 9 SSE Lander... 15 inches. 6 SW Lander... 15 inches. 9.5 SW Lander... 14 inches. Atlantic City... 12.7 inches. St. Lawrence Alt Snotel... 12 inches. Jeffrey City... 11 inches. 9 S Lander... 9.7 inches. 9 SSE Lander... 9.7 inches. 7 SE Lander... 9.5 inches. Lander... 6-8 inches. 3 SW Lander... 7 inches. Lander Airport... 6.3 inches. Little Warm Snotel... 5 inches. 26 SSE Riverton... 5 inches. Riverton Airport... 4.2 inches. Burroughs Creek Snotel... 4 inches. Dubois... 2.5 inches. Riverton... 2.2 inches. Burris... 0.1 inches. Hot Springs County... Owl Creek Snotel... 10 inches. Johnson County... Cloud Peak Reservoir Snotel... 12 inches. Soldier Park Snotel... 9 inches. Little Goose Snotel... 7 inches. Hansen Sawmill Snotel... 3 inches. Bear Trap Meadow Snotel... 2 inches. 17 NNW Kaycee... 1 inch. Kaycee... 0.5 inches. Lincoln County... Willow Creek Snotel... 10 inches. Indian Creek Snotel... 7 inches. Spring Creek Divide Snotel... 5 inches. Blind Bull Summit Snotel... 5 inches. 3 SE Bedford... 4.4 inches. Star Valley Ranch... 4 inches. Salt River Summit Snotel... 4 inches. Kelley Ranger Station Snotel... 4 inches. Cottonwood Creek Snotel... 3 inches. 2 SE Thayne... 3 inches. Fossil Butte... 2.9 inches. 5 SSE Smoot... 2 inches. Hams Fork Snotel... 2 inches. 3 N Etna... 1 inch. Afton... 0.5 inches. Natrona County... Casper Mountain Snotel... 14 inches. Reno Hill Snotel... 12 inches. Powder River... 7 inches. Grave Spring Snotel... 6 inches. 1 S Casper... 4.3 inches. 10 WSW Casper... 3 inches. Casper Airport... 2.8 inches. Casper... 2 inches. 11 WSW Casper... 2 inches. 3 WSW Casper... 1.7 inches. 5 SSW Casper... 1.1 inches. 12 NE Lysite... 1 inch. 4 WSW Casper... 0.6 inches. Park County... Marquette Snotel... 16 inches. Pahaska... 14 inches. Beartooth Lake Snotel... 13 inches. Timber Creek Snotel... 13 inches. Evening Star Snotel... 13 inches. Kirwin Snotel... 12 inches. Blackwater Snotel... 11 inches. Wolverine Snotel... 5 inches. Younts Peak Snotel... 4 inches. 26 SW Cody... 3.5 inches. 1 ENE Wapiti... 3 inches. 3 NE Sunshine... 1.6 inches. Sublette County... Elkhart Park G.S. Snotel... 7 inches. Gunsite Pass Snotel... 7 inches. Loomis Park Snotel... 6 inches. Triple Peak Snotel... 6 inches. Big Sandy Opening Snotel... 4 inches. Snider Basin Snotel... 2 inches. Larsen Creek Snotel... 2 inches. East Rim Divide Snotel... 2 inches. New Fork Lake Snotel... 2 inches. Pinedale... 1.1 inches. 14 NW Pinedale... 0.5 inches. Sweetwater County... Green River... 5-6 inches. Rock Springs... 4-6 inches. Wamsutter... 2 inches. Teton County... Togwotee Pass Snotel... 9 inches. Grassy Lake Snotel... 9 inches. Base Camp Snotel... 6 inches. Darwin Ranch... 4.6 inches. Phillips Bench Snotel... 3 inches. Jackson Dam... 2.6 inches. 12 NE Jackson... 1 inch. 1 NNW Alta... 1 inch. Moose... 0.5 inches. 5 NW Jackson... 0.4 inches. Jackson... 0.4 inches. Washakie County... Middle Powder Snotel... 4 inches. Powder River Pass Snotel... 4 inches. Yellowstone National Park... Parker Peak Snotel... 13 inches. Sylvan Lake Snotel... 11 inches. Canyon Snotel... 10 inches. Lewis Lake Divide Snotel... 6 inches. Thumb Divide Snotel... 5 inches. Mammoth... 2.1 inches. Snake River Ranger Station... 1.5 inches. Yellowstone East Entrance... 1 inch. Tower Falls Ranger Station... 1 inch. Sylvan Road Snotel... 1 inch. $$
Rain Totals
...Final Storm Total Rainfall Reports for May 17-19, 2017... The following are rainfall reports from late Tuesday through early Friday morning. Location Amount Elevation (ft.) ...Yellowstone National Park... 9 E Tower Junction 0.72 in 7266 6 S Lewis Lake In Ynp 0.70 in 7850 Mammoth At Yellowstone Np - 0.54 in 6230 ...YELLOWSTONE NATIONAL PARK... Parker Peak (e. Ynp) 1.30 in 9400 Sylvan Lake 1.20 in 8420 4 W Pahaska 0.90 in 7120 1 SW Canyon 0.80 in 8090 Tower Falls 0.79 in 6266 Lake Village 0.76 in 7875 2 S Grant Village 0.60 in 7980 Mammoth 0.56 in 6300 South Entrance Ynp 0.50 in 6920 NE Entrance Yellowstone 0.48 in 7360 4 W South Entrance Ynp 0.41 in 7040 Snake River Ranger Station 0.40 in 6882 Gardner River Nr Mammoth, Ye 0.38 in 5624 South Entrance Ynp 0.38 in 6900 ...Wind River Basin... Riverton Forecast Office 1.07 in 5576 Fort Washakie 0.90 in 5565 Boysen Dam 0.72 in 4760 ...WASKAKIE COUNTY... 5 NNW Ten Sleep 1.07 in 4768 Winchester 0.62 in 4216 2 NE Worland 0.48 in 4089 ...WASHAKIE COUNTY... 12 ENE Ten Sleep 0.79 in 8202 Ten Sleep 0.77 in 4470 10 SSE Worland 0.47 in 4520 15 SSW Big Trails 0.30 in 6554 ...Upper Green River Basin Foothills... East Rim Divide 0.40 in 7930 ...TETON COUNTY... 8 W South Entrance Ynp 1.30 in 7265 Grand Targhee 0.90 in 9260 Togwotee Pass 0.90 in 9850 8 NNE Moran Junction 0.80 in 7030 17 N Alta 0.65 in 6830 2 NE Teton Pass 0.60 in 8200 Snake River At Jackson Lake 0.56 in 6779 Moran 0.50 in 6800 7 E Moran Jct 0.45 in 7251 Jackson 0.40 in 6247 Hoback Junction 0.39 in 5928 Jackson 0.35 in 6240 Jackson Hole Airport 0.34 in 6445 4 N Moose 0.32 in 6730 Alta 0.30 in 6430 Jackson - Coop 0.30 in 6210 Moose - Coop 0.28 in 6445 ...Southwest Big Horn Basin... Thermopolis 1.13 in 4396 ...Southeast Big Horn Basin... 1 SE Ten Sleep 0.89 in 4419 Worland 0.77 in 4060 Worland 0.65 in 0 ...Salt River and Wyoming Ranges... 14 ESE Smoot 1.00 in 9000 Salt River Summit 0.50 in 7600 ...SWEETWATER COUNTY... Green River 0.87 in 6241 Rock Springs 0.70 in 6284 3 NE Manila Ut 0.58 in 6060 Green River 0.56 in 6060 Farson 0.46 in 6657 Flaming Gorge - Buckboard Ma 0.44 in 6080 Green River 0.39 in 6133 Mckinnon 0.26 in 7086 ...SUBLETTE COUNTY... 17 NW South Pass City 1.10 in 9000 10 E Big Sandy 1.00 in 9080 N Wind River Mts 0.90 in 9820 15 N Pinedale 0.70 in 9400 Boulder Lake 0.53 in 7350 14 N Farson 0.45 in 6780 20 E Bondurant 0.40 in 7740 New Fork Lake 0.40 in 8340 28 WNW Big Piney 0.40 in 8500 7 NE Pinedale 0.39 in 8530 Pinedale 0.36 in 7310 Pinedale 0.34 in 7212 ...PARK COUNTY... 17 SW Meeteetse 2.50 in 7950 18 SW Cody 2.30 in 8760 12 SE Pahaska 1.60 in 9780 N. Absaroka Mts 1.10 in 7650 Cody 25.7 SW 0.96 in 6008 3 NE Clark 0.94 in 4090 14 NE Pahaska 0.90 in 9200 Kirwin Snotel 0.90 in 9550 20 SW Cody 0.88 in 5843 5 WNW Clark 0.87 in 4659 Beartooth Lake 0.80 in 9275 4 SE Cody 0.78 in 5152 2 WSW Cody 0.70 in 5164 2 WSW Cody 0.68 in 5167 Pahaska 0.62 in 6800 Cody 0.62 in 5088 Cody Airport 0.54 in 5100 4 ENE Powell 0.50 in 4288 4 SW Powell 0.48 in 4511 10 WNW Cody 0.43 in 8401 3 E Wapiti 0.42 in 5400 Powell 0.36 in 4386 3 W Powell 0.30 in 4505 19 SSW Wapiti 0.28 in 6200 ...Northeast Johnson County... 13 SSE Buffalo 1.04 in 0 ...North Big Horn Basin... 1 ESE Burlington 0.88 in 0 Basin 0.32 in 3837 ...Natrona County Lower Elevations... Casper - Coop 1.08 in 5180 10 NE Alcova 0.51 in 0 8 SE Evansville 0.32 in 5592 ...NATRONA COUNTY... 22 SE Casper 3.30 in 8500 28 N Waltman 1.40 in 8550 4 WSW Casper 1.14 in 5151 2 E Casper 1.12 in 5220 Casper Airport 1.09 in 5320 10 WSW Casper 1.07 in 5277 Casper - N Platte River 1.06 in 5100 Casper Mtn 0.90 in 7850 Pathfinder Reservoir 0.83 in 5858 Casper 0.72 in 5252 Independence Rock 0.62 in 5920 5 SSW Casper 0.51 in 6262 Midwest 0.45 in 4865 12 NE Lysite 0.28 in 6045 ...Lander Foothills... Lander 1.37 in 5320 ...LINCOLN COUNTY... 8 NE Afton 1.60 in 8450 20 NE Cokeville 1.20 in 9425 15 NE Cokeville 1.00 in 8180 6 ENE Smoot 0.80 in 7600 15 NE Cokeville 0.75 in 8470 5 SSE Smoot 0.75 in 7005 15 E Cokeville 0.70 in 7840 15 SE Smoot 0.70 in 9000 Bedford - Coop 0.54 in 6425 2 SE Thayne 0.50 in 6086 Smiths Fork Near Border 0.48 in 6650 1 S Bedford 0.43 in 6279 1 NW Afton 0.37 in 6211 Afton 0.36 in 6267 Kemmerer 0.33 in 6980 Blind Bull Summit 0.30 in 8900 Thayne 0.29 in 5928 3 NW Etna 0.27 in 5676 ...Jackson Hole... 2 NE Wilson 0.29 in 6184 ...JOHNSON COUNTY... 8 S Story 2.05 in 5279 Kaycee 17 NNW 2.04 in 5071 17 E Kaycee 1.60 in 4433 15 W Buffalo 1.50 in 8720 7 WSW Buffalo 1.49 in 5745 2 NW Mayoworth 1.44 in 5404 10 SW Kaycee 1.33 in 4900 14 WNW Mayoworth 1.30 in 8200 17 E Kaycee 1.21 in 4362 Cloud Peak 1.20 in 9860 7 NW Mayoworth 1.07 in 5720 Kaycee 0.94 in 4681 14 WSW Story 0.90 in 8870 14 W Buffalo 0.82 in 8400 7 NE Buffalo 0.78 in 4370 18 NW Buffalo 0.71 in 8604 7 SW Barnum 0.60 in 6440 3 SSE Barnum 0.52 in 5075 Powder River Pass 0.50 in 9480 20 NW Mayoworth 0.48 in 8180 15 WSW Buffalo 0.30 in 8360 ...HOT SPRINGS COUNTY... 39 W Thermopolis 1.20 in 8975 Thermopolis 1.14 in 4346 Thermopolis 1.09 in 4408 3 NE Thermopolis 1.08 in 4326 10 S Meeteetse 0.61 in 7127 Kirby 0.53 in 4350 S. Fork Owl Creek Below Anch 0.40 in 6120 ...Green Mountains and Rattlesnake Range... Jeffrey City 0.96 in 6320 ...FREMONT COUNTY... 6 SW Lander 1.97 in 6088 10 NW South Pass City 1.90 in 9700 13 W Crowheart 1.70 in 9630 18 W Lander 1.70 in 10100 South Pass 1.60 in 9040 12 SW Lander 1.60 in 8700 13 W Fort Washakie 1.50 in 8620 9 SW Lander 1.35 in 7085 N Fork Popo Agie River 1.28 in 5760 1 N Lander 1.18 in 5352 N. Fork Little Wind River 1.14 in 6120 7 NW Lander 0.82 in 5797 11 W Crowheart 0.78 in 6520 2 W Riverton 0.78 in 5075 3 NNW Hudson 0.60 in 5555 17 NE Dubois 0.50 in 8400 Jeffrey City 0.50 in 6374 Crowheart 0.49 in 6099 10 SE Crowheart 0.43 in 5654 5 WSW Dubois 0.30 in 9370 3 NNE South Pass City 0.28 in 8540 8 W South Pass City 0.27 in 8120 ...Cody Foothills... 7 NW Cody 1.22 in 0 6 SW Meeteetse 1.14 in 6238 2 W Pitchfork 0.98 in 6883 1 NE Cody 0.71 in 0 Cody 0.53 in 5050 ...BIG HORN COUNTY... Bald Mtn. 1.20 in 9380 2 SSW Lovell 0.82 in 3958 5 NW Granite Pass 0.30 in 9350 9 ENE Greybull 0.27 in 4205 ...Absaroka Mountains... 7 WNW Sunlight Basin 1.50 in 7650 Pahaska 1.09 in 6696 Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. $$
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