Following is the detailed summary of the storm from Riverton Forecast Office.
SYNOPSIS: A strong slow-moving upper level low pressure system moved across the Great Basin and Four Corners area Thursday and Friday. The storm brought 20 to over 30 inches of snowfall to the eastern Wind River Mountains, and widespread precipitation amounts over 2.50" to the Wind River Basin. A top rainfall amount (with some snow mixed in) of 4.65 inches at a weather station in Arapahoe on the Wind River Indian Reservation. The Riverton Airport set an all-time daily record precipitation record with 2.64 inches of precipitation measured on March 31st. Lander had their 6th highest all-time daily precipitation total on 127 years of record, measuring 2.71 inches on March 31st. South Pass remained closed early Saturday morning due to a sustained period of blizzard conditions with around 20 inches of snowfall since Thursday evening. The Wyoming Department of Transportation expects to open the road sometime after 8 am Saturday morning.
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Total Precipitation March 30-31 2017Public Information Statement National Weather Service Riverton WY 628 AM MST Sat Apr 01 2017 ...Preliminary Storm Information... The following are storm reports for snowfall, precipitation, and peak winds for the 48 hour period from 6 am Thursday, March 30th until 6 am on April 1st. Additional 24 hour reports for precipitation will be received between 6 am and noon on April 1st, and then this product will be updated with the final storm totals. Observations are collected from a variety of sources with varying equipment and exposures. Not all data listed are considered official. ***** Snowfall Reports ***** Location Snowfall Big Horn County... Bone Springs Divide Snotel... 5 inches. Shell Creek Snotel... 4 inches. Bald Mountain Snotel... 2 inches. Fremont County... Townsend Creek Snotel... 31 inches. St. Lawrence Alt Snotel... 31 inches. Cold Springs Snotel... 26 inches. Deer Park Snotel... 23 inches. Little Warm Snotel... 23 inches. South Pass Snotel... 22 inches. Hobbs Park Snotel... 21 inches. 6 SW Lander... 8.1 inches. Atlantic City... 7.6 inches. Lander Airport... 5.7 inches. Hudson... 5 inches. Burroughs Creek Snotel... 3 inches. Arapahoe... 3 inches. Brooks Lake... 3 inches. Dubois... 2 inches. Hot Springs County... Owl Creek Snotel... 11 inches. Johnson County... Cloud Peak Reservoir Snotel... 12 inches. Little Goose Snotel... 11 inches. Soldier Park Snotel... 11 inches. Hansen Sawmill Snotel... 8 inches. Bear Trap Meadow Snotel... 3 inches. Lincoln County... Indian Creek Snotel... 8 inches. Hams Fork Snotel... 6 inches. Spring Creek Divide Snotel... 5 inches. Commissary Ridge... 3 inches. Kelley Ranger Station Snotel... 2 inches. Blind Bull Summit... 2 inches. Blind Bull Summit Snotel... 1 inch. Natrona County... Casper Mountain Snotel... 10 inches. Casper Mountain... 6 inches. Reno Hill Snotel... 6 inches. Casper Airport... 5.5 inches. Grave Spring Snotel... 4 inches. Hiland... 2 inches. Park County... Marquette Snotel... 21 inches. Kirwin Snotel... 16 inches. Timber Creek Snotel... 12 inches. Blackwater Snotel... 4 inches. Younts Peak Snotel... 2 inches. Evening Star Snotel... 2 inches. Wolverine Snotel... 1 inch. 26 SW Cody... 0.5 inches. Sublette County... Gunsite Pass Snotel... 5 inches. Snider Basin Snotel... 5 inches. Larsen Creek Snotel... 3 inches. Triple Peak Snotel... 3 inches. Loomis Park Snotel... 1 inch. Big Sandy Opening Snotel... 1 inch. Sweetwater County... 7 SE Rock Springs... 0.6 inches. Teton County... Togwotee Pass Snotel... 2 inches. Togwotee Mountain Lodge... 2 inches. Jackson Hole - Mid Mountain... 1 inch. Jackson Hole - Raymer... 1 inch. Gros Ventre Summit Snotel... 1 inch. Grand Targhee - Chief Joseph... 1 inch. Washakie County... Powder River Pass Snotel... 3 inches. Middle Powder Snotel... 1 inch. ***** 48 Hour Precipitation Reports (6 am March 30 until 6 am April 1) ***** Location Amount Elevation (ft.) ...Wyoming... ...Big Horn County... 5 ENE Hyattville 0.41 in 5670 ...Fremont County... Arapahoe School 4.63 in 5032 N. Fork Little Wind River 4.14 in 6120 N Fork Popo Agie River 3.28 in 5760 Riverton Forecast Office 3.28 in 5576 Lander Airport 3.15 in 5586 9 SW Lander 3.13 in 7085 Riverton Airport 2.76 in 5525 Fort Washakie 2.36 in 5565 7 NW Lander 2.33 in 5797 Crowheart 1.98 in 6099 3 NNW Hudson 1.82 in 5555 11 W Crowheart 1.40 in 6520 10 SE Crowheart 0.72 in 5654 Boysen Reservoir 0.61 in 4710 6 NW Dubois 0.57 in 7189 7 SW Muddy Gap 0.54 in 7380 Jeffrey City 0.48 in 6374 Middle Fork Popo Agie River 0.46 in 6555 10 N Dubois 0.42 in 8085 3 NNE South Pass City 0.28 in 8540 19 WSW Dubois 0.14 in 8833 14 ENE Dubois 0.12 in 7365 ...Hot Springs County... S. Fork Owl Creek Below Anch 1.48 in 6120 10 S Meeteetse 0.56 in 7127 Kirby 0.37 in 4350 ...Johnson County... 8 S Story 1.28 in 5279 10 SW Kaycee 0.98 in 4900 14 W Buffalo 0.74 in 8400 Buffalo Airport 0.71 in 4970 7 SW Barnum 0.64 in 6440 Kaycee 0.61 in 4681 3 SSE Barnum 0.58 in 5075 2 NW Mayoworth 0.58 in 5404 7 NW Mayoworth 0.55 in 5720 7 NE Buffalo 0.42 in 4370 7 WSW Buffalo 0.38 in 5745 18 NW Buffalo 0.31 in 8604 20 NW Mayoworth 0.25 in 8180 17 E Kaycee 0.25 in 4362 ...Lincoln County... Kemmerer 1.44 in 6980 5 SSE La Barge 1.03 in 6530 Cokeville 0.85 in 6191 15 NE Cokeville 0.42 in 8470 Smiths Fork Near Border 0.34 in 6650 1 NW Afton 0.11 in 6211 ...Natrona County... Casper - N Platte River 1.30 in 5100 Casper Airport 1.12 in 5320 Pathfinder Reservoir 1.00 in 5858 16 S Hiland 0.98 in 6380 Independence Rock 0.91 in 5920 Midwest 0.43 in 4865 3 WSW Mills 0.37 in 5197 8 SE Evansville 0.27 in 5592 8 S Casper 0.19 in 7740 ...Park County... 20 SW Cody 0.92 in 5843 19 SSW Wapiti 0.49 in 6200 Meeteetse 0.36 in 5797 1 SW Canyon 0.35 in 7900 NE Entrance Yellowstone 0.25 in 7360 Tower Falls 0.25 in 6266 3 E Pahaska 0.21 in 7500 Crandall 0.16 in 6640 14 S Sylvan Pass 0.16 in 8650 15 WSW Mammoth 0.13 in 7900 10 WNW Cody 0.13 in 8401 Hoyt Peak 0.11 in 9800 ...Sublette County... 21 W Big Piney 0.52 in 8200 Big Piney Airport 0.26 in 6974 14 N Farson 0.19 in 6780 Boulder Lake 0.15 in 7350 Bondurant 0.13 in 6650 Pinedale 0.11 in 7310 ...Sweetwater County... 4 NE Bitter Creek 0.74 in 6720 Green River 0.54 in 6060 1 S Fontenelle Reservoir 0.45 in 6390 3 NE Manila Ut 0.41 in 6060 Rock Springs Airport 0.38 in 6760 15 SE Rock Springs 0.30 in 7550 Farson 0.27 in 6657 Mckinnon 0.22 in 7086 Wamsutter - Coop 0.22 in 6725 ...Teton County... 5 S Of South Entrance Ynp 0.49 in 7020 South Entrance Ynp 0.30 in 6900 Lake Village 0.29 in 7875 Moran Junction 0.28 in 6749 2 NE Wilson 0.24 in 6184 17 N Alta 0.23 in 6830 4 W South Entrance Ynp 0.22 in 7040 Snake River At Jackson Lake 0.22 in 6779 Alta 0.18 in 6430 Kelly 0.16 in 6653 Alta - Coop 0.11 in 6435 ...Washakie County... 10 SSE Worland 0.34 in 4520 16 SE Big Trails 0.26 in 7220 Worland Airport 0.24 in 4245 1 SE Ten Sleep 0.15 in 4419 ***** 48 Hour Peak Wind Reports (6 am March 30 to 6 am April 1) ***** Location Speed Time/Date Elevation (ft.) ...Wyoming... ...Big Horn County... Cowley Airport 45 MPH 0815 AM 03/31 4090 30 E Greybull 44 MPH 0658 AM 03/31 8898 ...Fremont County... 8 W South Pass City 62 MPH 0550 PM 03/31 8120 2 W South Pass City 53 MPH 0601 PM 03/31 8185 South Pass 44 MPH 0115 PM 03/31 8556 ...Hot Springs County... Boysen Peak 51 MPH 1255 PM 03/31 7300 ...Park County... 8 N Meeteetse 49 MPH 0236 PM 03/31 5926 ...Sweetwater County... Rock Springs Airport 59 MPH 0411 PM 03/31 6760 Farson 50 MPH 0330 PM 03/31 6594 5 E Rock Springs 49 MPH 0425 PM 03/31 6369 15 SE Rock Springs 45 MPH 0444 PM 03/31 7550 ...Teton County... Summit - Jackson Resort 73 MPH 1115 AM 03/31 10318 2 WNW Teton Village 48 MPH 1100 AM 03/31 7913 |
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