National Weather Service United States Department of Commerce

Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

Western and Central Wyoming

Weather Forecast Office

Winter Storm Summary December 13-15

Weather.gov > Western and Central Wyoming > Winter Storm Summary December 13-15

Winter Storm Summary Banner
Snowfall Totals |Strongest Winds| Reporting Snowfall | Safety

Heavy snow impacted much of Western and Central Wyoming beginning Sunday night.  The heaviest snowfall fell east of the Divide first around Cody early Monday morning, with snow spreading to the rest of the area by Monday evening.  This really was a storm for Casper as all the ingredients came together for them the longest with heavy snow falling from late Monday afternoon through Tuesday morning where snowfall rates exceeded an inch per hour for much of that timeframe. Light snow continued to fall across the Casper are through Tuesday evening.

 

Click to enlarge Click to enlarge
Click to Enlarge

Road closures are in red on the map (refresh the page for the latest map).  Please check with Wyoming Department of Transportation's Travel Information for the latest updates and road closures, or dial 5 1 1. 

  Click to Enlarge


Casper Mountain was the big winner with 32" of snow from this storm! The low elevations around the Casper area recieved anywhere from 10 to 17 inches of the white stuff! 

Photo credit: Ken Brown
 


 

Banner image

 

Snow Map - Click to enlarge
Storm Total Snowfall from
December 13-15, 2015
County Station Name Snowfall
Big Horn Bone Springs Divide Snotel 3
Big Horn Shell Creek Snotel 3
Big Horn Deaver 2
Big Horn Lovell 1.5
Big Horn 9 ENE Greybull 1.3
Big Horn 9 NNW Shell 1.1
Big Horn 2 SSW Lovell 1
Big Horn Shell 0.5
Big Horn Greybull 0.2
County Station Name Snowfall
Fremont 9 SSE Lander 10
Fremont 9.5 SW Lander 9
Fremont 6 SW Lander 8.1
Fremont Lander Airport 8.1
Fremont 1 SE Lander 8
Fremont 9 SSE Lander 8
Fremont 7 SW Lander 8
Fremont Lander 6 - 7
Fremont Sweetwater Station 7
Fremont 6 SE Lander 7
Fremont 1 SW Lander 6
Fremont Townsend Creek Snotel 6
Fremont Hobbs Park Snotel 5
Fremont Hudson 5
Fremont Brooks Lake 5
Fremont 7 WNW Lander 3.8
Fremont Atlantic City 3.1
Fremont Cold Springs Snotel 3
Fremont South Pass Snotel 3
Fremont Deer Park Snotel 3
Fremont Jeffrey City 3
Fremont Little Warm Snotel 3
Fremont St. Lawrence Alt Snotel 3
Fremont Dubois 2.5
Fremont 2 SSW Arapahoe 2
Fremont Burroughs Creek Snotel 2
Fremont Castle Creek Snotel 2
Fremont Riverton 1.4
Fremont Riverton Airport 1.3
Fremont Boysen Dam 1
Fremont 2 W Riverton 0.6
County Station Name Snowfall
Hot Springs Thermopolis 11
Hot Springs 6 N Thermopolis 10
Hot Springs 3 NE Thermopolis 7.8
Hot Springs 9 NE Thermopolis 6.8
Hot Springs 8 W Thermopolis 4
County Station Name Snowfall
Johnson Hansen Sawmill Snotel 6
Johnson 17 NNW Kaycee 4.5
Johnson Soldier Park Snotel 4
Johnson Little Goose Snotel 4
Johnson Bear Trap Meadow Snotel 4
Johnson 17 E Kaycee 4
Johnson Cloud Peak Reservoir Snotel 4
Johnson 4 SSW Buffalo 2
Johnson Buffalo 1
County Station Name Snowfall
Lincoln 3 SE Bedford 7
Lincoln 2 SE Thayne 5.2
Lincoln Afton 5
Lincoln Kemmerer 5
Lincoln Star Valley Ranch 4.9
Lincoln Alpine 4
Lincoln Blind Bull Summit 4
Lincoln 3 S Fontenelle Dam 4
Lincoln 5 SSE Smoot 4
Lincoln Commissary Ridge 3
Lincoln Box Y Ranch 3
Lincoln Fossil Butte 2.5
Lincoln Indian Creek Snotel 1
Lincoln Willow Creek Snotel 1
County Station Name Snowfall
Natrona Casper Mountain 32
Natrona Reno Hill Snotel 27
Natrona Casper Mountain Snotel 23
Natrona Casper 10.5 - 16
Natrona 5 SW Casper 14
Natrona 3 SW Casper 14
Natrona 2 E Evansville 12.5
Natrona 1 SW Casper 12
Natrona 2 N Casper 12
Natrona 3 WSW Casper 11.9
Natrona 4 WSW Casper 10.9
Natrona 2 S Casper 10.8
Natrona Casper Airport 10.4
Natrona 10 WSW Casper 9
Natrona Midwest 6
Natrona Powder River 4
Natrona Grave Spring Snotel 2
County Station Name Snowfall
Park 3 W Wapiti 5
Park 2 WSW Cody 5
Park Cody 5
Park 3 NE Clark 4.7
Park 1 NW Meeteetse 4.5
Park Beartooth Lake Snotel 4
Park Wolverine Snotel 4
Park Marquette Snotel 4
Park Evening Star Snotel 4
Park Blackwater Snotel 4
Park Pahaska 4
Park 1 W Powell 3
Park Timber Creek Snotel 3
Park 4 SW Powell 2.5
Park 4 SE Cody 2.4
Park 3 NE Sunshine 2.2
Park Meeteetse 1.5
Park Kirwin Snotel 1
Park 5 ESE Cody 0.2
County Station Name Snowfall
Sublette Bondurant 5.3
Sublette Triple Peak Snotel 3
Sublette 14 NW Pinedale 2.5
Sublette New Fork Lake Snotel 2
Sublette 13 NE Big Piney 1.3
Sublette Boulder Rearing Station 1
Sublette Pinedale 0.8
County Station Name Snowfall
Sweetwater 7 SE Rock Springs 4.9
Sweetwater 4 NNW Rock Springs 4.5
Sweetwater Green River 4.1
Sweetwater Buckboard Marina 4
Sweetwater Rock Springs 4
Sweetwater Bairoil 0.5
County Station Name Snowfall
Teton 5 NW Jackson 12.5
Teton Jackson Hole - Rendezvous Bowl 9.5
Teton Snow King 9
Teton Grand Targhee - Chief Joseph 9
Teton Jackson Hole - Mid Mountain 8.5
Teton 3 SSW Wilson 8
Teton 1 NNW Alta 8
Teton Jackson Hole - Raymer 8
Teton 2 NE Teton Village 7.8
Teton Jackson Hole - Base 7
Teton Jackson 6.2
Teton Moose 6
Teton Granite Creek Snotel 6
Teton Grassy Lake Snotel 6
Teton 12 NE Jackson 5
Teton Jackson Dam 4.8
Teton Togwotee Pass Snotel 4
Teton Darwin Ranch 3.5
Teton Togwotee Mountain Lodge 3.1
Teton Base Camp Snotel 2
County Station Name Snowfall
Washakie Middle Powder Snotel 4
Washakie 16 SSE Ten Sleep 3.8
Washakie Winchester 3.5
Washakie 27 S Ten Sleep 3.5
Washakie 5 NNW Ten Sleep 3.2
Washakie Ten Sleep 3
Washakie Powder River Pass Snotel 2
County Station Name Snowfall
Yellowstone Snake River Ranger Station 9.5
Yellowstone Lewis Lake Divide Snotel 7
Yellowstone Parker Peak Snotel 5
Yellowstone Sylvan Lake Snotel 5
Yellowstone Lamar Ranger Station 4
Yellowstone Tower Falls Ranger Station 3.2
Yellowstone Sylvan Road Snotel 3

 

Strongest Wind Banner

 

 

 

December 13-15, 2015 Peak Wind Gusts
County Location Wind Gust (mph) Date Time
(MST)		 Elevation
(Ft)
 Big Horn  30 E Greybull 40 12/15 958 AM 8898
 Big Horn  Cowley Airport 35 12/14 415 PM 4090
 Fremont  7 SW Muddy Gap 46 12/14 350 AM 7380
 Fremont  Jeffrey City  46 12/14 429 AM 6374
 Fremont  2 W South Pass City  44 12/14 1046 PM 8185
 Fremont  Red Canyon 41 12/14 625 AM 6768
 Fremont  8 W South Pass City 39 12/15 1250 AM 8120
 Fremont  Riverton Airport 37 12/14 548 PM 5525
 Hot Springs  Boysen Peak  58 12/15 455 AM 7300
 Hot Springs  10 S Meeteetse  46 12/15 342 AM 7127
 Johnson  12 N Kaycee  45 12/15 411 AM 5287
 Johnson  25 ESE Buffalo  43 12/15 300 AM 4657
 Johnson  Buffalo Aiport  40 12/15 345 PM 4970
 Johnson  13 NNW Buffalo 39 12/14 1005 PM 4737
 Johnson  7 NE Buffalo 35 12/14 1017 PM 4370
 Johnson  5 ESE Story 35 12/14 926 PM 4673
 Natrona  16 S Highland  47 12/14 410 AM 6380
 Natrona  Casper Airport 45 12/14 743 AM 5320
 Natrona  20 N Casper 42 12/15 700 AM 5677
 Natrona  7 W Alcova 40 12/15 1215 AM 6342
 Park  8 N Meeteetse  51 12/14 526 PM 5926
 Park  1 W Clark 38 12/14 1051 PM 4270
 Park  Buffalo Bill Reservoir 37 12/14 245 PM 5357
 Park  8 S Clark 36 12/14 845 PM 4710
 Sweetwater   15 SE Rock Springs  42 12/13 1144 PM 7550
 Sweetwater   I-80 Mile Marker 157 42 12/13 1120 PM 6965
 Sweetwater   40 SE Rock Springs  40 12/15 600 AM 7108
 Sweetwater    I-80 Mile Marker 142  40 12/15 405 AM 7162
 Sweetwater   I-80 Mile Marker 184  39 12/15 226 AM 7112
 Sweetwater   Rock Springs Airport  35 12/14 1247 AM 6760
 Teton   Summit - Jackson Resort  44 12/14 1015 PM 10,318
 Washakie  15 SSW Big Trails 50 12/14 740 AM 6554
 Yellowstone Park  1 W Grant Village  49 12/15 110 PM 7874
           

 

   Banner

Monitor our Severe Weather Summary Page for current Warnings, Watches, and Advisories. What's the difference?
Current Weather Story Check the latest Weather Story graphic for an overview of the area forecast.
NWS Riverton Radar Check out what's on the radar.
Riverton | Pocatello | Cheyenne | Billings | Salt Lake City | Rapid City | Mosaic
Submit storm reports/images and keep up to date with us on Facebook!
Twitter Logo - @NWSRiverton Follow us on Twitter for additional information. The hashtags #wywx, #Wyoming, and #wxreport can be used for reporting current weather conditions, including snowfall.
Other reporting methods include eSpotter, email (cr.wxriw@noaa.gov), or by phone at 1-800-211-1448.
Check the latest Public Information Statement for the latest storm reports.
WyDoT's Webpage Monitor current road conditions by visiting the Wyoming Dept. of Transportation (WYDOT) or by calling 5-1-1.


Winter saftey tips

 

Winter Safety Kit      |    Vehicle Safety Kit

 

 

 

 

 

Learn more about the National Weather Service's efforts to build a Weather-Ready Nation!
Follow us on Twitter  Follow us on Twitter
Follow us on Facebook  Follow us on Facebook
Follow us on YouTube  Follow us on YouTube
RIW RSS Feed  RIW RSS Feed

Current Hazards
Submit Storm Report
Outlooks
Watches/Warnings

Social Media
YouTube
Twitter
Facebook

Current Conditions
Satellite
WY Observations
Radar
Precip Analysis
Observations
Snow Cover

Forecasts
Severe Weather
Forecast Discussion
User Defined Forecast
Fire Weather
Activity Planner
Hourly Forecasts
Snow and Avalanche
Aviation Weather Decision Support

Hydrology
SnoTel Page
Rivers and Lakes

Weather Safety
NOAA Weather Radio
Preparedness
SkyWarn
StormReady

Climate
Annual and Water Year Climate Summaries
Previous Annual and Water Year Climate Summaries
Climate Summaries
Local Climate
Local Climate Graphs
National Climate
Local Drought
NOAA Climate Science
Spring Frost/Freeze

Additional Information
Text Products
Agricultural Burning
Web Cams