Final Update* Storm Summary September 14-18

A series of cold fronts brought widespread precipitation amounts of 1 to 2 inches across the west from Monday through Thursday night.   Portions of the Star Valley and Yellowstone National Park received from 2 to over 3 inches of precipitation; the highest total of 3.07 inches was reported 5 miles north of Thayne in the Star Valley.  A strong cold frontal passage also resulted in some high winds across the area on Wednesday with an automated station 15 miles southeast of Rock Springs reporting a gust to 81 mph Wednesday afternoon. 

***** Final Update *****

Clouds parting at Jackson Hole Mountain Resort's Cody Bowl (elev. 10,450 ft.) Friday afternoon to reveal a winter wonderland in the last few days of summer.   Click to Enlarge	A 64 mph was recorded in Sinks Canyon on Wednesday morning.   Only 0.01 inches of rainfall fell Thursday afternoon in Sinks Canyon, and then the double rainbow!  Click to Enlarge

Click on map to enlarge

  

Precipitation Totals from Monday, September 14th through 7 AM Friday, September 18th County Station Name Rainfall Big Horn Mill Creek 0.57 Big Horn Shell 0.25 Big Horn 9 NNW Shell 0.15 Big Horn Lovell 0.12 Big Horn 2 SSW Lovell 0.12 Big Horn Deaver 0.10 Big Horn Hyatt High 0.08 Big Horn Greybull 0.03 Big Horn Greybull ASOS 0.01 Fremont Raspberry 1.23 Fremont 10 WNW Dubois 0.52 Fremont Elkhorn 0.27 Fremont Dubois 0.24 Fremont Anderson Ridge 0.14 Fremont Wind River 0.11 Fremont Camp Creek 0.09 Fremont Atlantic City 0.08 Fremont Riverton 0.5 NW 0.03 Fremont 9 SSE Lander 0.03 Fremont 6 SW Lander 0.03 Fremont Burris 0.03 Fremont Jeffrey City 0.02 Fremont Riverton 0.01 Fremont Riverton ASOS 0.01 Hot Springs 9 NE Thermopolis 0.06 Johnson School House 0.10 Johnson Buffalo ASOS 0.10 Johnson 12 SSE Buffalo 0.06 Johnson 17 NNW Kaycee 0.01 Lincoln 5 NNE Thayne 3.07 Lincoln 3 NW Etna 2.92 Lincoln Star Valley Ranch 2.81 Lincoln 2 SE Thayne 2.75 Lincoln 1 S Bedford 2.28 Lincoln 5 SSE Smoot 1.98 Lincoln Afton 1.92 Lincoln 1 SW Afton 1.86 Lincoln Kelly 1.67 Lincoln Etna 1.42 Lincoln Fossil Butte 1.10 Lincoln 3 WNW Kemmerer 0.95 Lincoln 3 SE Bedford 0.94 Lincoln 5 SSE La Barge 0.39 MONTANA Soda Butte 1.12 Natrona 11 ESE Casper 0.05 Natrona 5 SSW Casper 0.03 Natrona 7 SSW Casper 0.02 Natrona 12 NE Lysite 0.02 Natrona Casper Mountain 0.01 Natrona 10 WSW Casper 0.01 Park Quadrant 2.92 Park Pahaska 1.12 Park Cabin Creek 0.90 Park Eagle 0.57 Park Crandall 0.30 Park 26 SW Cody 0.27 Park 2 WSW Cody 0.12 Park Rattlesnake Mountain 0.12 Park Cody 0.09 Park 3 NE Sunshine 0.07 Park 4 SE Cody 0.05 Park 5 ESE Cody 0.03 Park 3 NE Clark 0.03 Park Meeteetse 0.02 Park Cody 0.01 Park 2 SW Powell 0.01 Park 4 SW Powell 0.01 Park 7 SW Cody 0.01 Sublette Hoback 1.45 Sublette 15 WNW Daniel 1.35 Sublette 14 NW Pinedale 1.08 Sublette Bondurant 1.03 Sublette Daniel Fish Hatchery 1.03 Sublette Half Moon 0.95 Sublette Snider Basin 0.94 Sublette Pinedale 0.91 Sublette Pinedale 1NE 0.57 Sublette 13 SE Pinedale 0.30 Sublette Big Piney ASOS 0.24 Sublette Boulder Rearing Station 0.10 Sweetwater Rock Springs ASOS 0.33 Sweetwater 4 NNW Rock Springs 0.28 Sweetwater Green River 0.23 Sweetwater Rock Springs 0.22 Sweetwater 5 N Farson 0.19 Sweetwater Wamsutter 0.19 Sweetwater Snow Springs Creek 0.17 Sweetwater 8 NNW Rock Springs 0.15 Sweetwater 1 SE Green River 0.11 Sweetwater McKinnon 0.11 Sweetwater Buckboard Marina 0.06 Teton Bechler 2.50 Teton Jackson 2.32 Teton 12 NE Jackson 2.29 Teton 2 NE Teton Village 2.17 Teton Moose 2.17 Teton Burro Hill 2.06 Teton Coyote Meadows 2.04 Teton 5 NW Jackson 2.03 Teton 4 SW Jackson 1.96 Teton Grand Teton 1.88 Teton Jackson Dam 1.80 Teton South Park 1.69 Teton Hoback Junction 1.28 Teton 1 NNW Alta 1.24 Washakie Leigh Creek 0.25 Washakie Worland 0.24 Washakie Winchester 0.22 Washakie 27 S Ten Sleep 0.20 Washakie Worland ASOS 0.10 Washakie Ten Sleep 0.10 Washakie 2 NE Worland 0.10 Washakie 8 SW Worland 0.08 Washakie 5 NNW Ten Sleep 0.07 Washakie 16 SSE Ten Sleep 0.04 Washakie Split Rock Creek 0.03 Yellowstone Old Faithful Ranger Station 2.33 Yellowstone Snake River Ranger Station 1.82 Yellowstone Bechler River Ranger Station 1.76 Yellowstone Grebe 1.54 Yellowstone Lake Yellowstone ASOS 1.28 Yellowstone Yellowstone East Entrance 1.20 Yellowstone Tower Falls Ranger Station 0.97 Yellowstone Yellowstone Mammoth 0.67

A cold front brought some strong winds across the area on Wednesday, September 16th.  Locations that recorded wind gusts over 45 mph are included in the following table: 

Wednesday September 16th Notable Wind Gusts

County	Location	Wind Gust (mph)
Fremont	Red Canyon	73
Fremont	9 SW Lander (Sinks Canyon)	64
Fremont	3 NNW Hudson	54
Fremont	10 W Fort Washakie	51
Fremont	2 W South Pass City	50
Fremont	7 SW Muddy Gap	48
Fremont	Jeffrey City	48
Fremont	Riverton Airport	48
Hot Springs	Boysen Peak	51
Hot Springs	10 S Meeteetse	47
Johnson	25 ESE Buffalo	53
Johnson	12 N Kaycee	50
Lincoln	Mt. Coffin	62
Lincoln	Kemmerer Airport	54
Lincoln	13 W Kemmerer	48
Lincoln	Deadman Mountain	45
Natrona	2 SE Hiland	63
Natrona	16 S Hiland	58
Natrona	20 N Casper	55
Natrona	8 S Casper	53
Natrona	Casper Airport	51
Natrona	Casper Outer Drive	51
Natrona	Midwest	49
Natrona	7 W Alcova	48
Park	Chief Joseph Hwy	49
Park	Hoyt Peak	48
Park	8 N Meeteetse	46
Sweetwater	15 SE Rock  Springs	81
Sweetwater	I 80 - Mile Marker 184	50
Sweetwater	I 80 - Mile Marker 157	47
Sweetwater	McKinnon	45
Sweetwater	5 E Rock Springs	45
Teton	Teton Saddle	70
Washakie	South Bighorn Mountains	48