December 20th & 21st Winter Storm Summary

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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.


View of Alpine on December 21st Click to Enlarge	10 inches of snow in Kemmerer Click to Enlarge

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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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