Western and Central Wyoming

Weather Forecast Office

Winter Storm Finally Ends Across Western Wyoming

SYNOPSIS:

WINTER STORM WARNINGS HAVE EXPIRED AS of 5 PM MST:

Roads in Western Wyoming are still experiencing winter driving conditions. U.S. Highway 89 between Moose and Moran Junction remains closed with a potential opening on Friday. Teton Pass has re-opened as of 5 PM this evening. Please keep updated on road closures and advisories regarding no unnecessary travel at the WYDOT website - wyoroad.info.

AVALANCHE CONDITIONS:

Avalanche Warning continues until 6 a.m. Thursday for most areas of Western Wyoming. Visit jhavalanche.org for complete information.

IMPACTS:

Slick and hazardous roads
Possible road closures
High avalanche danger

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NWS Text Products and Forecasts

Area Forecast Discussion	Winter Weather Statement	Special Weather Statement	What's a "Watch?"
Observed Snow Totals or High Wind	Weather Story		What's a "Watch?"

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Snow Totals and Wind Reports will be posted and updated here once the storm occurs (Please double check date and time of product)
559 NOUS45 KRIW 291743 PNSRIW WYZ001>020-022>030-300527- Public Information Statement National Weather Service Riverton WY 1127 AM MDT Fri Aug 29 2025 ...Rainfall Totals since Monday morning, August 25th... Monsoonal moisture brought significant rainfall to much of th region over the last 4 days. The wettest days were Tuesday through Thursday, where some locations saw ponding of water and even some minor flooding as a result of the heavy rain. Below is a selection of precipitation reports over 0.1 inches since Monday. ...PRECIPITATION REPORTS... Location Amount Elevation (ft.) ...Big Horn County... Greybull 30 E 0.32 in 8897 ...Fremont County... South Pass City 8 W 0.84 in 8120 Riverton 2.2 WSW 0.73 in 5033 Kinnear 0.68 in 5488 RIVERTON 0.66 in 4920 Dubois 19 WSW 0.57 in 8833 RED CANYON RANCH NC LANDER 1 0.56 in 5777 Muddy Gap 7 SW 0.54 in 7379 Burroughs Creek 0.50 in 8750 Fort Washakie 10 W 0.50 in 9234 Lander 9.3 S 0.49 in 5995 Dubois 0.48 in 6955 Riverton - CWC 0.44 in 5372 1 W Riverton 0.42 in 4989 Lander 6 SW 0.41 in 6088 Lander 9 SSE 0.38 in 5818 Lander 7WNW 0.38 in 6042 Lander 5.1 SW 0.38 in 5980 Kinnear 0.37 in 5413 Riverton Airport 0.37 in 5509 Elkhorn 0.34 in 8084 5 ESE Dubois 0.33 in Lander 4 WSW 0.33 in 5768 Fort Washakie 3.7 SE 0.33 in 5548 Hudson 3 NNW 0.31 in 5555 Lander 0.4 WNW 0.31 in 5367 Lander 5.9 SSE 0.30 in 5556 RED CANYON RANCH NC LANDER 1 0.30 in 5777 Riverton 0.30 in 4990 Lander 6 SW 0.29 in 6555 Riverton 0.27 in 4966 Lander Airport 0.25 in 5565 Riverton 0.22 in 5390 Pavillion 5.8 E 0.19 in 5322 Crowheart 0.19 in 6137 Jeffrey City 0.10 in 6442 ...Johnson County... Barnum 7 SW 0.67 in 6439 Buffalo 4.0 N 0.64 in 4685 Buffalo 1.3 ENE 0.63 in 4699 Buffalo 0.6 E 0.56 in 4696 Barnum 4 S 0.42 in 5075 Buffalo 13 SSE 0.33 in 4819 Story 8 S 0.32 in 5278 Story 10 SW 0.31 in 8580 Buffalo 2NE 0.27 in 4770 Buffalo Airport 0.20 in 4905 Kaycee 14.6 W 0.20 in Buffalo 15 W 0.17 in 8398 Story 4 SE 0.17 in 4662 Buffalo 4 SSW 0.13 in 5262 Buffalo 18 NW 0.12 in 8604 ...Lincoln County... Afton 1.91 in 6257 Star Valley Ranch 1.0 S 1.70 in 6204 Afton 1.69 in 6248 Afton 1.39 in 6267 Alpine 5.9 S 1.28 in 5932 Thayne 1.22 in 5948 Bedford 1.8 S 1.16 in 6302 Star Valley Ranch 1.05 in 6253 Bedford 0.99 in 6279 Etna 0.93 in 5692 Etna 3.3 N 0.86 in 5989 Thayne 2SE 0.77 in 6086 Calpet 15 SW 0.72 in 6957 Smoot 5 SSE 0.51 in 7005 Cokeville 15 NE 0.31 in 8470 La Barge 5 SE 0.20 in 6529 ...Natrona County... Casper 2.0 ENE 1.21 in 5252 Casper 8 S 1.14 in 7740 Hiland 16 S 1.13 in 6379 Casper 1.2 E 0.98 in Casper 2.3 S 0.73 in 5647 Casper 1S 0.66 in 5522 Casper 5 SSW 0.54 in 6262 Casper Airport 0.47 in 5327 Casper 7.5 W 0.45 in 5361 Casper 2 SW 0.45 in 5434 Casper 0.7 WSW 0.43 in Casper 7.1 SW 0.32 in 5415 Casper 0.29 in 5341 ...Park County... Canyon 1 SW - YNP 1.11 in 7899 Mammoth 15 WSW 0.90 in 7899 Pahaska 3 E 0.30 in 7500 Pahaska 0.16 in 6692 Powell 0.5 WNW 0.12 in 446 Powell 4 ENE 0.11 in 4288 Crandall 0.11 in 6640 ...Sublette County... Kendall R.S. 1.20 in 7740 Cora 14.2 N 1.12 in 7740 Big Piney Airport 0.99 in 6944 Daniel 0.92 in 7341 Bondurant 2 NW 0.79 in 6726 Pinedale 1 NNW 0.67 in 7213 Boulder 0.61 in 7338 Boulder Rearing Station 0.59 in 6940 Pinedale 14 NW 0.56 in 7464 Pinedale 7 NE 0.41 in 8529 Big Piney 21 W 0.30 in 8200 Boulder 9 N 0.29 in 7350 Bondurant 0.24 in 6648 Daniel 11 N 0.22 in 7470 ...Sweetwater County... Green River 0.5 NNW 0.64 in 6185 Rock Springs 1.0 SSE 0.35 in 6330 Rock Springs 1.6 W 0.30 in Rock Springs 7 SE 0.25 in 6750 Rock Springs Airport 0.21 in 6745 Mckinnon 0.15 in 7086 Green River 0.13 in 6160 Green River 0.10 in 6109 Rock Springs 15 SE 0.10 in 7549 ...Teton County... South Entrance 19 W - YNP 1.55 in 6399 Alta 17 N 1.45 in 6830 Snake River R.S. - YNP 0.99 in 6882 South Entrance 5 SSW - YNP 0.95 in 7020 Lake Yellowstone - YNP 0.92 in 7839 South Entrance 3 W - YNP 0.77 in 7040 Jackson 12 NE 0.68 in 6663 Jackson Hole Airport 0.67 in 6453 Jackson 0.60 in 6210 Moran Jct 7 E 0.59 in 7250 Moose 4 N 0.58 in 6729 Jackson 7.8 N 0.58 in Alta 0.55 in 6430 Moran 0.49 in 6748 Jackson 0.3 ENE 0.39 in 6264 Wilson 1.0 SE 0.39 in 6155 Hoback 0.37 in 5928 Lake Yellowstone - YNP 0.35 in 7875 Jackson 0.32 in 6158 Old Faithful - YNP 0.23 in 7319 Jackson Dam 0.13 in 6776 ...Washakie County... Ten Sleep 12 ENE 0.14 in 8202 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. $$

Snow Totals and Wind Reports will be posted and updated here once the storm occurs
(Please double check date and time of product)

                        
559
NOUS45 KRIW 291743
PNSRIW
WYZ001>020-022>030-300527-

Public Information Statement
National Weather Service Riverton WY
1127 AM MDT Fri Aug 29 2025

...Rainfall Totals since Monday morning, August 25th...

Monsoonal moisture brought significant rainfall to
much of th region over the last 4 days. The wettest days
were Tuesday through Thursday, where some locations saw
ponding of water and even some minor flooding as a result
of the heavy rain. Below is a selection of precipitation
reports over 0.1 inches since Monday.

...PRECIPITATION REPORTS...

Location                     Amount     Elevation
                                        (ft.)

...Big Horn County...
Greybull 30 E                0.32 in    8897

...Fremont County...
South Pass City 8 W          0.84 in    8120
Riverton 2.2 WSW             0.73 in    5033
Kinnear                      0.68 in    5488
RIVERTON                     0.66 in    4920
Dubois 19 WSW                0.57 in    8833
RED CANYON RANCH NC LANDER 1 0.56 in    5777
Muddy Gap 7 SW               0.54 in    7379
Burroughs Creek              0.50 in    8750
Fort Washakie 10 W           0.50 in    9234
Lander 9.3 S                 0.49 in    5995
Dubois                       0.48 in    6955
Riverton - CWC               0.44 in    5372
1 W Riverton                 0.42 in    4989
Lander 6 SW                  0.41 in    6088
Lander 9 SSE                 0.38 in    5818
Lander 7WNW                  0.38 in    6042
Lander 5.1 SW                0.38 in    5980
Kinnear                      0.37 in    5413
Riverton Airport             0.37 in    5509
Elkhorn                      0.34 in    8084
5 ESE Dubois                 0.33 in
Lander 4 WSW                 0.33 in    5768
Fort Washakie 3.7 SE         0.33 in    5548
Hudson 3 NNW                 0.31 in    5555
Lander 0.4 WNW               0.31 in    5367
Lander 5.9 SSE               0.30 in    5556
RED CANYON RANCH NC LANDER 1 0.30 in    5777
Riverton                     0.30 in    4990
Lander 6 SW                  0.29 in    6555
Riverton                     0.27 in    4966
Lander Airport               0.25 in    5565
Riverton                     0.22 in    5390
Pavillion 5.8 E              0.19 in    5322
Crowheart                    0.19 in    6137
Jeffrey City                 0.10 in    6442

...Johnson County...
Barnum 7 SW                  0.67 in    6439
Buffalo 4.0 N                0.64 in    4685
Buffalo 1.3 ENE              0.63 in    4699
Buffalo 0.6 E                0.56 in    4696
Barnum 4 S                   0.42 in    5075
Buffalo 13 SSE               0.33 in    4819
Story 8 S                    0.32 in    5278
Story 10 SW                  0.31 in    8580
Buffalo 2NE                  0.27 in    4770
Buffalo Airport              0.20 in    4905
Kaycee 14.6 W                0.20 in
Buffalo 15 W                 0.17 in    8398
Story 4 SE                   0.17 in    4662
Buffalo 4 SSW                0.13 in    5262
Buffalo 18 NW                0.12 in    8604

...Lincoln County...
Afton                        1.91 in    6257
Star Valley Ranch 1.0 S      1.70 in    6204
Afton                        1.69 in    6248
Afton                        1.39 in    6267
Alpine 5.9 S                 1.28 in    5932
Thayne                       1.22 in    5948
Bedford 1.8 S                1.16 in    6302
Star Valley Ranch            1.05 in    6253
Bedford                      0.99 in    6279
Etna                         0.93 in    5692
Etna 3.3 N                   0.86 in    5989
Thayne 2SE                   0.77 in    6086
Calpet 15 SW                 0.72 in    6957
Smoot 5 SSE                  0.51 in    7005
Cokeville 15 NE              0.31 in    8470
La Barge 5 SE                0.20 in    6529

...Natrona County...
Casper 2.0 ENE               1.21 in    5252
Casper 8 S                   1.14 in    7740
Hiland 16 S                  1.13 in    6379
Casper 1.2 E                 0.98 in
Casper 2.3 S                 0.73 in    5647
Casper 1S                    0.66 in    5522
Casper 5 SSW                 0.54 in    6262
Casper Airport               0.47 in    5327
Casper 7.5 W                 0.45 in    5361
Casper 2 SW                  0.45 in    5434
Casper 0.7 WSW               0.43 in
Casper 7.1 SW                0.32 in    5415
Casper                       0.29 in    5341

...Park County...
Canyon 1 SW - YNP            1.11 in    7899
Mammoth 15 WSW               0.90 in    7899
Pahaska 3 E                  0.30 in    7500
Pahaska                      0.16 in    6692
Powell 0.5 WNW               0.12 in    446
Powell 4 ENE                 0.11 in    4288
Crandall                     0.11 in    6640

...Sublette County...
Kendall R.S.                 1.20 in    7740
Cora 14.2 N                  1.12 in    7740
Big Piney Airport            0.99 in    6944
Daniel                       0.92 in    7341
Bondurant 2 NW               0.79 in    6726
Pinedale 1 NNW               0.67 in    7213
Boulder                      0.61 in    7338
Boulder Rearing Station      0.59 in    6940
Pinedale 14 NW               0.56 in    7464
Pinedale 7 NE                0.41 in    8529
Big Piney 21 W               0.30 in    8200
Boulder 9 N                  0.29 in    7350
Bondurant                    0.24 in    6648
Daniel 11 N                  0.22 in    7470

...Sweetwater County...
Green River 0.5 NNW          0.64 in    6185
Rock Springs 1.0 SSE         0.35 in    6330
Rock Springs 1.6 W           0.30 in
Rock Springs 7 SE            0.25 in    6750
Rock Springs Airport         0.21 in    6745
Mckinnon                     0.15 in    7086
Green River                  0.13 in    6160
Green River                  0.10 in    6109
Rock Springs 15 SE           0.10 in    7549

...Teton County...
South Entrance 19 W - YNP    1.55 in    6399
Alta 17 N                    1.45 in    6830
Snake River R.S. - YNP       0.99 in    6882
South Entrance 5 SSW - YNP   0.95 in    7020
Lake Yellowstone - YNP       0.92 in    7839
South Entrance 3 W - YNP     0.77 in    7040
Jackson 12 NE                0.68 in    6663
Jackson Hole Airport         0.67 in    6453
Jackson                      0.60 in    6210
Moran Jct 7 E                0.59 in    7250
Moose 4 N                    0.58 in    6729
Jackson 7.8 N                0.58 in
Alta                         0.55 in    6430
Moran                        0.49 in    6748
Jackson 0.3 ENE              0.39 in    6264
Wilson 1.0 SE                0.39 in    6155
Hoback                       0.37 in    5928
Lake Yellowstone - YNP       0.35 in    7875
Jackson                      0.32 in    6158
Old Faithful - YNP           0.23 in    7319
Jackson Dam                  0.13 in    6776

...Washakie County...
Ten Sleep 12 ENE             0.14 in    8202

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.

$$

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For more detailed Wyoming road conditions, please visit WYDOT at: wyoroad.info

Road Conditions for Surrounding States

Teton Pass - Hwy 22	Alpine Junction - U.S. Hwy 26/89/191	Jackson	Bondurant - U.S. Hwy 189

Togwotee Pass - U.S. Hwy 26	Dubois	Granite Pass - U.S. Hwy 14	Powder River Pass - U.S. Hwy 16

South Pass - Hwy 28	Chief Joseph	Buffalo - I-25/I-90 Interchange	Casper

I-80 - Little America	Beaver Rim - U.S. Hwy 287	I-80 - Rock Springs	I-80 - Laramie

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