National Weather Service United States Department of Commerce

Active Weather for the West, Warming in the East

The potential for heavy snow at higher elevations in the western U.S. will continue for many spots through the weekend. In the meantime, the eastern half of the continental U.S. will transition to above normal temperatures ahead of a pair of cold fronts next week that will bring readings back to closer to normal as we approach Thanksgiving Day. Read More >

Winter Storm Summary Banner
Snowfall Totals | Reporting Snowfall


A major snowstorm crippled much of Wyoming from April 3-5, 2023. The combination of significant to record snowfall and strong winds led to blizzard conditions across eastern Sweetwater County, Natrona County, and Johnson County. The official snowfall total for Casper was 37.4" and is now the all-time record snowfall for one single event. Wind gusts of 30 to 50 mph created blizzard conditions and very large snow drifts. In Casper drifts as high as 8 feet were reported. On Casper mountain 5' of snow was reported and this snow buried many structures on the mountain. 

 

 

 Snow Drifts Were 6-8 Feet in some areas - Click to Enlarge

 
  Blizzard Conditions Occurred In Casper And Surrounding Areas - Click to Enlarge


 
 

Banner image

The area from Rock Springs to Rawlins received much more snow than depicted on the image above. There were
no reports in that area, which is why the map shows such low snowfall amounts, but there was at least a foot
of total snowfall accumulation in eastern Sweetwater County.

Location                     Amount  Elevation (ft.)

...Fremont County...
Atlantic City                48.8 in    7815
7 NNW South Pass City        39.0 in    8941
10 NNW South Pass City       38.0 in    9674
13 SW Lander                 37.0 in    8714
14 SW Fort Washakie          28.0 in   10067
9 SW Lander                  26.0 in    7150
15 W Fort Washakie           24.0 in    8426
2 SSE Lander                 17.9 in    5518
6 SW Lander                  16.6 in    6046
2 SSE Fort Washakie          16.3 in    5555
6 WSW Dubois                 15.0 in    9419
11 WSW Burris                15.0 in    9909
1 NNW Lander                 14.7 in    5332
7 WNW Lander                 12.4 in    6035
9 SSE Lander                 11.0 in    5818
4 WNW Riverton               10.5 in    5166
1 NE Riverton                10.0 in    4949
6 WNW Riverton                9.2 in    5565
2 W Riverton                  9.1 in    5073
1 W Riverton                  7.5 in    5031
Hudson                        7.4 in    5098
1 WNW Dubois                  6.5 in    6947
6 ESE Dubois                  5.2 in    6657
11 N Dubois                   4.0 in    8658
12 NNW Shoshoni               3.0 in    4859
16 NE Dubois                  2.0 in    8410

...Hot Springs County...
23 WSW Hamilton Dome         25.0 in    8905
15 WSW Hamilton Dome          7.4 in    6608
1 WSW Lucerne                 3.7 in    4429
1 E Thermopolis               3.0 in    4324
2 NE Lucerne                  2.3 in    4280

...Johnson County...
16 W Buffalo                 11.0 in    8691
18 WNW Buffalo               10.0 in    9860
15 WSW Buffalo                9.0 in    8300
13 SSE Buffalo                8.0 in    4810
5 SSW Buffalo                 8.0 in    5296
27 WNW Buffalo                8.0 in    8543
14 WNW Mayoworth              8.0 in    8065
8 NNE Mayoworth               7.5 in    5070
1 E Buffalo                   7.0 in    4650
Buffalo                       6.6 in    4640

...Lincoln County...
2 SSW Fossil Butte National  22.8 in    6787
Afton                        20.0 in    6249
6 ENE Smoot                  12.0 in    8380
21 NE Cokeville              12.0 in    9329
2 NNW Turnerville            11.2 in    6346
8 S Smoot                    11.0 in    7577
15 NNE Cokeville             11.0 in    8368
3 SE Turnerville              9.0 in    8219
1 SE Thayne                   8.8 in    6079
4 NNE Thayne                  8.5 in    6247
15 ENE Cokeville              8.0 in    7886
5 NNE Thayne                  7.5 in    6370
15 ESE Smoot                  7.0 in    9033
Alpine                        3.5 in    5672
16 ENE Turnerville            3.0 in    8796

...Natrona County...
Casper Mountain              60.0 in    8000
2 SSW Casper                 39.3 in    5450
4 NW Mills                   37.4 in    5278
Casper Mountain SNOTEL       37.0 in    7900
2 SW Evansville              33.1 in    5151
1 SW Casper                  28.0 in    5321
1 NW Casper                  27.0 in    5138
22 SE Casper                 27.0 in    8401
1 WSW Casper                 24.5 in    5200
1 NW Powder River            14.0 in    5724
20 N Arminto                 10.0 in    8590
Midwest                       6.0 in    4862

...Park County...
6 SW Pitchfork               20.0 in    7925
15 SE Wapiti                 12.0 in    8918
2 SE Meeteetse                7.7 in    6068
5 NNE Meeteetse               4.3 in    5518
20 SW Pitchfork               3.0 in    9784
3 WSW Cody                    2.0 in    5286

...Sublette County...
11 E Big Sandy               10.0 in    9082
11 NNE Pinedale               7.0 in    9016
12 N Cora                     6.0 in    8392
6 NNE Big Sandy               6.0 in    9369
17 ESE Turnerville            6.0 in    8500
20 NW Calpet                  4.0 in    8065
12 ESE Bondurant              3.0 in    7953
6 WNW Cora                    2.9 in    7461

...Sweetwater County...
7 SSE Rock Springs           23.7 in    6752
1 SSW Green River            19.2 in    6307
2 NW Rock Springs            18.5 in    6300
1 NNW Green River            17.5 in    6086
2 SSW Rock Springs           17.0 in    6284
1 SSE Green River            15.8 in    6210
2 SSW Rock Springs           15.0 in    6284
2 SE Green River             14.6 in    6168
2 SSE Green River            13.5 in    6204
2 NNE Farson                  7.0 in    6624

...Teton County...
23 ESE Moran Junction         2.0 in    9624

...Washakie County...
12 SE Big Trails             15.0 in    7628
18 ENE Ten Sleep              5.0 in    9455

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.

 


Monitor our 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!
Submit storm reports/images and keep up to date with us on Twitter!
Other reporting methods include email (nws.riverton@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.
Get current road conditions, web camera images, road alerts, and much more on your mobile device by downloading the Wyoming 511 Mobile App.

 

 


 

 

Learn more about the National Weather Service's efforts to build a Weather-Ready Nation!