Heavy thunderstorms will continue areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Friday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding to a part of the Upper Midwest Thursday. Read More >
Overview
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The 3rd in a series of 4 quick moving Pacific storm systems brought significant rain and snow to western Wyoming especially from Star Valley to the Upper Green River Basin into the Wind River Mountains. Rain quickly changed to snow in the western Valleys Sunday evening with snowfall rates between 1 to 2 inches an hour observed. 12 to 15 inches of snow was observed in the Pinedale area. The intensity of the precipitation was aided by lift associated with a strong 160-180 MPH Jet Stream across northern Utah into southwest Wyoming. This placement of the Jet Stream put west-central Wyoming in a very favorable location for heavy precipitation. Also strong to high wind was observed over central Wyoming. The Lander Airport observed a 73 MPH wind gust at 256 PM MDT on October 17th. |
 Snow piled up on a fence near Pinedale. Source: Barrie R. |
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Wind:
Here are Peak Wind Gusts across Central and Western Wyoming through 400 PM MDT October 17th. Location Speed Elevation (ft.) ...Big Horn County... Cowley Airport 49 MPH 4090 ...Fremont County... 7 NW Lander 80 MPH 5797 7 SW Muddy Gap 74 MPH 7380 Lander Airport 73 MPH 5586 Red Canyon 68 MPH 6768 Beaver Rim 56 MPH 6784 Crowheart 54 MPH 6099 10 W Fort Washakie 50 MPH 9235 10 N Dubois 49 MPH 8085 Jeffrey City 47 MPH 6374 Riverton Airport 47 MPH 5525 Dubois Airport 46 MPH 7297 3 NNW Hudson 46 MPH 5555 9 SW Lander 45 MPH 7085 ...Hot Springs County... Thermopolis 56 MPH 4426 ...Johnson County... 7 SW Barnum 59 MPH 6440 20 SW Echeta 47 MPH 4068 25 ESE Buffalo 47 MPH 4657 18 NW Buffalo 45 MPH 8604 ...Lincoln County... Mt Coffin 68 MPH 10870 ...Natrona County... 16 S Hiland 65 MPH 6380 Casper Outer Drive 58 MPH 5463 20 N Casper 57 MPH 5677 Casper Airport 55 MPH 5320 Natrona 53 MPH 5589 7 W Alcova 52 MPH 6342 2 SE Hiland 50 MPH 6134 ...Park County... 5 WNW Clark 68 MPH 4659 Hoyt Peak 66 MPH 9800 Chief Joseph Hwy 63 MPH 8136 20 SW Cody 51 MPH 5843 1 W Clark 47 MPH 4270 8 N Meeteetse 46 MPH 5926 Crandall 45 MPH 6640 2 WSW Cody 45 MPH 5167 ...Sweetwater County... 15 SE Rock Springs 51 MPH 7550 I 80 - Mile Marker 184 50 MPH 7112 I 80 - Mile Marker 142 48 MPH 7162 1 NNE Green River 48 MPH 6315 Rock Springs Airport 45 MPH 6760 7 WSW Rock Springs 45 MPH 6238
Snow
...SNOWFALL TOTALS FROM SUNDAY THROUGH MONDAY MORNING... Location Snowfall Fremont County... Hobbs Park Snotel... 13 inches. Deer Park Snotel... 10 inches. Townsend Creek Snotel... 8 inches. South Pass Snotel... 7 inches. St. Lawrence Alt Snotel... 7 inches. Cold Springs Snotel... 7 inches. Little Warm Snotel... 5 inches. Dubois... 3 inches. Brooks Lake... 2 inches. Atlantic City... 0.2 inches. Lincoln County... Spring Creek Divide Snotel... 21 inches. Indian Creek Snotel... 17 inches. Blind Bull Summit... 15 inches. Kelley Ranger Station Snotel... 15 inches. Commissary Ridge... 15 inches. Blind Bull Summit Snotel... 14 inches. Salt River Summit Snotel... 14 inches. Cottonwood Creek Snotel... 14 inches. Willow Creek Snotel... 13 inches. Hams Fork Snotel... 9 inches. Box Y Ranch... 7 inches. 5 NNE Thayne... 7 inches. Cokeville... 6 inches. 5 SSE Smoot... 6 inches. Afton... 3.8 inches. 2 SE Thayne... 3.5 inches. 3 SE Bedford... 3 inches. Fossil Butte... 2 inches. Park County... Evening Star Snotel... 7 inches. Beartooth Lake Snotel... 6 inches. Blackwater Snotel... 6 inches. Younts Peak Snotel... 5 inches. Kirwin Snotel... 4 inches. Pahaska... 4 inches. Sublette County... Pocket Creek Snotel... 15 inches. Snider Basin Snotel... 15 inches. Triple Peak Snotel... 15 inches. 15 WNW Daniel... 15 inches. Pinedale... 12 to 14 inches. 14 NW Pinedale... 14 inches. Big Sandy Opening Snotel... 12 inches. Elkhart Park G.S. Snotel... 12 inches. Larsen Creek Snotel... 10 inches. East Rim Divide Snotel... 10 inches. New Fork Lake Snotel... 9 inches. Big Piney... 9 inches. Boulder... 9 inches. Gunsite Pass Snotel... 8 inches. Kendall Ranger Station Snotel... 8 inches. Loomis Park Snotel... 8 inches. Bondurant... 8 inches. Sweetwater County... 7 SE Rock Springs... 0.2 inches. Teton County... Phillips Bench Snotel... 11 inches. Moran... 8 inches. Grand Targhee Snotel... 8 inches. Jackson Hole - Rendezvous Bowl... 7 inches. Granite Creek Snotel... 7 inches. Grand Targhee - Chief Joseph... 6 inches. Base Camp Snotel... 5 inches. Gros Ventre Summit Snotel... 5 inches. Snow King... 5 inches. Jackson Hole - Mid Mountain... 5 inches. 12 NE Jackson... 5 inches. Togwotee Pass Snotel... 5 inches. Jackson Hole - Raymer... 5 inches. Grassy Lake Snotel... 4 inches. Jackson Hole - Base... 4 inches. Snake River Stn Snotel... 4 inches. Moose... 3 inches. 2 NE Teton Village... 2.8 inches. 5 NW Jackson... 2.5 inches. Jackson... 2 inches. Togwotee Mountain Lodge... 2 inches. 1 NNW Alta... 1 inch. Yellowstone National Park... Lewis Lake Divide Snotel... 9 inches. Parker Peak Snotel... 5 inches. Thumb Divide Snotel... 4 inches. Sylvan Lake Snotel... 4 inches. Snake River Ranger Station... 2 inches. Yellowstone East Entrance... 1 inch.
Photos:
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| Snow piling up in PInedale. (Source Jim M.) |
Big Piney Snow (Source: Tyler F.) |
Dog plowing through the snow in Pinedale (Source: Donna M.) |
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