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Significant Winter Storm to Affect the Pacific Coast through the Upper Midwest

A significant storm will bring high winds and heavy precipitation, including mountain snow, to portions of the western U.S. this weekend. Extremely dangerous travel is expected through passes. Confidence is increasing that this storm will then impact the central U.S. with heavy snow and strong winds to the north and severe thunderstorms with possible tornadoes and heavy rainfall to the south. Read More >

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Snowfall Totals |Strongest Winds| Reporting Snowfall | Safety


A strong winter storm impacted Western Wyoming Monday December 21st.  This storm was in between a few quick snow events in a moist and strong westerly flow. Very heavy snowfall occurred Monday afternoon and evening with a foot of snow occurring in the town of Jackson and about 2 feet of snow at the Jackson ski resort.  East of the Divide the main impact was very strong wind. A 74 mph wind gust was observed on Outer Drive in Casper while a 63 mph wind gust was recorded at the Casper Airport Monday evening.

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  View of Alpine on December 21st
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  10 inches of snow in Kemmerer
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Snow Map - Click to enlarge
Snowfall Amounts Dec 20th and 21st
County Location Snowfall
Big Horn Bald Mountain Snotel 6
Big Horn Bone Springs Divide Snotel 5
Big Horn Shell Creek Snotel 4
County Location Snowfall
Fremont Brooks Lake 15
Fremont Deer Park Snotel 10
Fremont Burroughs Creek Snotel 8
Fremont South Pass Snotel 8
Fremont Atlantic City 6.3
Fremont Townsend Creek Snotel 5
Fremont Hobbs Park Snotel 5
Fremont Castle Creek Snotel 5
Fremont St. Lawrence Alt Snotel 4
Fremont Little Warm Snotel 1
Fremont Cold Springs Snotel 1
County Location Snowfall
Johnson Cloud Peak Reservoir Snotel 5
Johnson Hansen Sawmill Snotel 4
Johnson Soldier Park Snotel 3
Johnson Little Goose Snotel 2
County Location Snowfall
Lincoln Blind Bull Summit 19
Lincoln Commissary Ridge 18
Lincoln Indian Creek Snotel 15
Lincoln Willow Creek Snotel 10
Lincoln Kemmerer 10
Lincoln Blind Bull Summit Snotel 10
Lincoln Box Y Ranch 9
Lincoln 5 NNE Thayne 8.5
Lincoln 2 SE Thayne 8.3
Lincoln Hams Fork Snotel 8
Lincoln Smoot 8
Lincoln 5 SSE Smoot 8
Lincoln Alpine 6.5
Lincoln Spring Creek Divide Snotel 6
Lincoln 3 SE Bedford 6
Lincoln Afton 4.9
Lincoln Fossil Butte 3.5
County Location Snowfall
Park Younts Peak Snotel 12
Park Evening Star Snotel 11
Park Blackwater Snotel 10
Park Wolverine Snotel 9
Park Beartooth Lake Snotel 9
Park Kirwin Snotel 7
Park Pahaska 7
Park Wapiti 3
Park Marquette Snotel 3
Park 26 SW Cody 2.5
County Location Snowfall
Sublette Triple Peak Snotel 11
Sublette Bondurant 10.4
Sublette Big Sandy Opening Snotel 10
Sublette Larsen Creek Snotel 9
Sublette Snider Basin Snotel 7
Sublette Elkhart Park G.S. Snotel 6
Sublette Pocket Creek Snotel 5
Sublette Kendall Ranger Station Snotel 5
Sublette 21 W Big Piney 4
Sublette Gunsite Pass Snotel 4
Sublette New Fork Lake Snotel 4
Sublette 14 NW Pinedale 3.5
Sublette Boulder Rearing Station 3
Sublette Loomis Park Snotel 3
Sublette Pinedale 2.6
Sublette Daniel Fish Hatchery 2
Sublette 26 NNW Pinedale 1.3
Sublette 13 NE Big Piney 0.5
County Location Snowfall
Sweetwater 5 N Farson 4
Sweetwater Rock Springs 3 to 4
Sweetwater Green River 3.2
Sweetwater 7 SE Rock Springs 3.2
Sweetwater Wamsutter 3
Sweetwater Buckboard Marina 2
County Location Snowfall
Teton Jackson Hole - Raymer 24.5
Teton Jackson Hole - Rendezvous Bowl 23.5
Teton Jackson Hole - Mid Mountain 21
Teton Grassy Lake Snotel 18
Teton Granite Creek Snotel 18
Teton Base Camp Snotel 18
Teton 3 SSW Wilson 17.5
Teton Snow King 17
Teton 2 NE Teton Village 16.3
Teton 5 NW Jackson 16
Teton Grand Targhee - Chief Joseph 15
Teton Moose 12.7
Teton Jackson 12.1
Teton Togwotee Pass Snotel 12
Teton Jackson Hole - Base 11.6
Teton 1 NNW Alta 10
Teton Jackson Airport 8
Teton 1 ENE Teton Village 7
Teton 12 NE Jackson 6.5
Teton Darwin Ranch 6
Teton Togwotee Mountain Lodge 6
County Location Snowfall
Washakie Powder River Pass Snotel 2
Yellowstone Lewis Lake Divide Snotel 20
Yellowstone Two Ocean Plateau Snotel 16
Yellowstone Thumb Divide Snotel 12
Yellowstone Snake River Ranger Station 11
Yellowstone Lamar Ranger Station 7
Yellowstone Old Faithful Ranger Station 7
Yellowstone Parker Peak Snotel 7
Yellowstone Sylvan Lake Snotel 6
Yellowstone Tower Falls Ranger Station 4
Yellowstone Canyon Snotel 4
Yellowstone Yellowstone East Entrance 2
Yellowstone Sylvan Road Snotel 1

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12/21 & 12/22 Notable Wind Gusts
County Location Wind Gust (mph) Date/Time
Lincoln Mount Coffin 112 12/21 1045 PM
Natrona Casper - Outer Drive 74 12/21 806 PM
Johnson 12 North of Kaycee 74 12/22 446 AM
Sweetwater I 80 - Mile Marker 142 63 12/22 305 AM
Fremont Red Canyon 63 12/21 545 PM
Natrona Casper Airport 61 12/21 952 PM


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