Western and Central Wyoming

Weather Forecast Office

Winter Storm Will Impact the Area Today with Snow and High WInd

SYNOPSIS:

A strong cold front will move across the area today. Snow, blowing and drifting snow will cause hazardous travel conditions across the west through the afternoon. Winter Storm Warnings and Winter Weather Advisories are in effect for far western portions until 5 pm. Snowfall amounts of 6 to 10 inches for the mountains, with local amounts of 9 to 15 inches in the Tetons. Lower elevations in the far west will see 4 to 5 inches. Other areas of the state south may see a dusting of snow up to a couple of inches.

Strong winds will also accompany the system in the western mountains, , I-80 and the southern wind corridor and northern I-25 corridor. High Wind Warnings are in effect for portions of Fremont, Natrona and Johnson Counties today where wind gusts over 60 mph are expected. Strong northwest wind will continue across the Wind River Basin and northeast Johnson County through this evening.

IMPACTS:

Western mountain and valley roads will be slick and hazardous due to falling snow and windy conditions.
Strong to High Winds will create hazardous driving conditions and areas of blowing snow.
- Southeast Fremont and Natrona counties will see High Wind gusts to 60 mph into this afternoon.
- Interstate 80 could see strong winds up to 50 mph today.
- The Wind River Basin and northeast Johnson County could see northwest winds gusting near 60 mph this afternoon and evening.

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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	High Wind Statement	Weather Story	What's a "Watch?"

Quick View of Hazards, Simulated Radar Imagery, and Forecast Snow Totals (created at 6 AM 12/12)
Click Images To Enlarge

Winter Storm Warnings and Winter Weather Advisories are in effect until 5 pm Wednesday

High Wind Warnings are in effect for southeast Fremont and Natrona Counties until 2 PM Wednesday

High Wind Warnings are in effect for the Wind River Basin and Northeast Johnson County from noon today until midnight Wednesday night.

Current Radar Loop
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Radar simulation of timing of snow beginning
at 5 AM Wednesday until 8 PM Wednesday night. The
darker blue shades represent heavier snow.

Snow and Wind Forecasts for Wednesday
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Forecast Snowfall on Wednesday	Wednesday's Peak Wind Gusts

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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)
418 NOUS45 KRIW 231829 PNSRIW WYZ001>020-022>030-240559- Public Information Statement National Weather Service Riverton WY 1159 AM MDT Tue Sep 23 2025 ...EVENT SUMMARY... The first Fall weather system brought plenty of rain to the area and some mountain snow as well over the past two days. This weather system brought impressive rain to central portions of the area thanks to nature of how it passed through the region. On Sunday it began sliding down from the north and then Monday into Monday night it pivoted to the south and east. This pivot allowed for persistent moderate rain from Lander to Thermopolis Monday through Monday night. Rain persisted at Casper through Tuesday morning and ended early in the afternoon. Below you will find 48 hour rainfall totals from Sunday morning through Tuesday morning. ...PRECIPITATION REPORTS... Location Amount Time/Date Elevation (ft.) ...Wyoming... ...Fremont County... Lander 6 SW 1.09 in 0700 AM 09/23 6088 Riverton Airport 0.91 in 1130 AM 09/23 5443 Riverton 1.9 W 0.84 in 0800 AM 09/23 5123 Riverton 0.76 in 0700 AM 09/23 4955 Fort Washakie 3.7 SE 0.70 in 0600 AM 09/23 5548 Dubois 0.32 in 0600 AM 09/23 6955 ...Hot Springs County... Thermopolis 1.15 in 0830 AM 09/23 ...Lincoln County... Alpine 5.9 S 0.74 in 0700 AM 09/23 5932 Star Valley Ranch 1.0 S 0.57 in 0700 AM 09/23 6204 Star Valley Ranch 0.49 in 0800 AM 09/23 6253 Afton 0.36 in 0800 AM 09/23 6248 Thayne 2SE 0.31 in 0700 AM 09/23 6086 Smoot 5 SSE 0.15 in 0700 AM 09/23 7005 ...Natrona County... Casper 5 SSW 0.85 in 0700 AM 09/23 6262 Casper 2.3 S 0.77 in 0800 AM 09/23 5647 1 S Casper 0.75 in 1130 AM 09/23 Casper 1 NW 0.56 in 0700 AM 09/23 5142 Casper 1.2 E 0.56 in 0800 AM 09/23 Casper 1.7 W 0.50 in 0700 AM 09/23 5146 Casper Airport 0.44 in 1130 AM 09/23 5327 Casper 1.5 SW 0.44 in 0615 AM 09/23 Casper 0.7 WSW 0.44 in 0700 AM 09/23 Casper 2.0 ENE 0.44 in 0700 AM 09/23 5252 Casper 7.5 W 0.25 in 0630 AM 09/23 5361 ...Park County... Cody 1SE 0.58 in 0700 AM 09/23 5102 Cody 2NE 0.42 in 0700 AM 09/23 4939 Cody 4.3 NNE 0.40 in 0911 AM 09/23 6 SW Ralston 0.38 in 0700 AM 09/23 Powell 24.2 WNW 0.38 in 0800 AM 09/23 Cody 2.9 ESE 0.37 in 0700 AM 09/23 Clark 3NE 0.34 in 0800 AM 09/23 4117 Cody 5.3 E 0.33 in 0700 AM 09/23 Cody 21.9 W 0.30 in 0808 AM 09/23 5887 Cody Airport 0.28 in 1056 AM 09/23 5138 Meeteetse 4 NNE 0.28 in 0700 AM 09/23 Meeteetse 0.2 NE 0.25 in 0700 AM 09/23 5807 Powell 20.4 NW 0.02 in 0700 AM 09/23 ...Sublette County... Daniel 0.24 in 0800 AM 09/23 7341 Pinedale 1 NNW 0.24 in 0800 AM 09/23 7213 Pinedale 5.0 SE 0.19 in 0700 AM 09/23 7144 Big Piney Airport 0.13 in 1053 AM 09/23 6944 Pinedale 14 NW 0.12 in 0600 AM 09/23 7464 ...Sweetwater County... Rock Springs Airport 0.35 in 1054 AM 09/23 6745 ...Teton County... Bechler Ranger Station 0.59 in 0800 AM 09/23 6432 Jackson 0.3 ENE 0.49 in 0700 AM 09/23 6264 Jackson 0.43 in 0900 AM 09/23 6210 Teton Village 2 NE 0.38 in 0700 AM 09/23 6339 Jackson Hole Airport 0.18 in 1123 AM 09/23 6453 Lake Yellowstone - YNP 0.17 in 1056 AM 09/23 7839 ...Washakie County... Ten Sleep 27 S 0.46 in 0700 AM 09/23 5002 Worland Airport 0.24 in 1053 AM 09/23 4190 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)

                        
418
NOUS45 KRIW 231829
PNSRIW
WYZ001>020-022>030-240559-

Public Information Statement
National Weather Service Riverton WY
1159 AM MDT Tue Sep 23 2025

...EVENT SUMMARY...

The first Fall weather system brought plenty of rain to the area and
some mountain snow as well over the past two days. This weather
system brought impressive rain to central portions of the area
thanks to nature of how it passed through the region. On Sunday it
began sliding down from the north and then Monday into Monday night
it pivoted to the south and east. This pivot allowed for persistent
moderate rain from Lander to Thermopolis Monday through Monday
night. Rain persisted at Casper through Tuesday morning and ended
early in the afternoon. Below you will find 48 hour rainfall totals
from Sunday morning through Tuesday morning.

...PRECIPITATION REPORTS...

Location                     Amount    Time/Date       Elevation (ft.)

...Wyoming...

...Fremont County...
Lander 6 SW                  1.09 in   0700 AM 09/23   6088
Riverton Airport             0.91 in   1130 AM 09/23   5443
Riverton 1.9 W               0.84 in   0800 AM 09/23   5123
Riverton                     0.76 in   0700 AM 09/23   4955
Fort Washakie 3.7 SE         0.70 in   0600 AM 09/23   5548
Dubois                       0.32 in   0600 AM 09/23   6955

...Hot Springs County...
Thermopolis                  1.15 in   0830 AM 09/23

...Lincoln County...
Alpine 5.9 S                 0.74 in   0700 AM 09/23   5932
Star Valley Ranch 1.0 S      0.57 in   0700 AM 09/23   6204
Star Valley Ranch            0.49 in   0800 AM 09/23   6253
Afton                        0.36 in   0800 AM 09/23   6248
Thayne 2SE                   0.31 in   0700 AM 09/23   6086
Smoot 5 SSE                  0.15 in   0700 AM 09/23   7005

...Natrona County...
Casper 5 SSW                 0.85 in   0700 AM 09/23   6262
Casper 2.3 S                 0.77 in   0800 AM 09/23   5647
1 S Casper                   0.75 in   1130 AM 09/23
Casper 1 NW                  0.56 in   0700 AM 09/23   5142
Casper 1.2 E                 0.56 in   0800 AM 09/23
Casper 1.7 W                 0.50 in   0700 AM 09/23   5146
Casper Airport               0.44 in   1130 AM 09/23   5327
Casper 1.5 SW                0.44 in   0615 AM 09/23
Casper 0.7 WSW               0.44 in   0700 AM 09/23
Casper 2.0 ENE               0.44 in   0700 AM 09/23   5252
Casper 7.5 W                 0.25 in   0630 AM 09/23   5361

...Park County...
Cody 1SE                     0.58 in   0700 AM 09/23   5102
Cody 2NE                     0.42 in   0700 AM 09/23   4939
Cody 4.3 NNE                 0.40 in   0911 AM 09/23
6 SW Ralston                 0.38 in   0700 AM 09/23
Powell 24.2 WNW              0.38 in   0800 AM 09/23
Cody 2.9 ESE                 0.37 in   0700 AM 09/23
Clark 3NE                    0.34 in   0800 AM 09/23   4117
Cody 5.3 E                   0.33 in   0700 AM 09/23
Cody 21.9 W                  0.30 in   0808 AM 09/23   5887
Cody Airport                 0.28 in   1056 AM 09/23   5138
Meeteetse 4 NNE              0.28 in   0700 AM 09/23
Meeteetse 0.2 NE             0.25 in   0700 AM 09/23   5807
Powell 20.4 NW               0.02 in   0700 AM 09/23

...Sublette County...
Daniel                       0.24 in   0800 AM 09/23   7341
Pinedale 1 NNW               0.24 in   0800 AM 09/23   7213
Pinedale 5.0 SE              0.19 in   0700 AM 09/23   7144
Big Piney Airport            0.13 in   1053 AM 09/23   6944
Pinedale 14 NW               0.12 in   0600 AM 09/23   7464

...Sweetwater County...
Rock Springs Airport         0.35 in   1054 AM 09/23   6745

...Teton County...
Bechler Ranger Station       0.59 in   0800 AM 09/23   6432
Jackson 0.3 ENE              0.49 in   0700 AM 09/23   6264
Jackson                      0.43 in   0900 AM 09/23   6210
Teton Village 2 NE           0.38 in   0700 AM 09/23   6339
Jackson Hole Airport         0.18 in   1123 AM 09/23   6453
Lake Yellowstone - YNP       0.17 in   1056 AM 09/23   7839

...Washakie County...
Ten Sleep 27 S               0.46 in   0700 AM 09/23   5002
Worland Airport              0.24 in   1053 AM 09/23   4190

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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