Severe Thunderstorms in the Central Plains; Heavy Rainfall in the Mississippi and Tennessee Valleys; Critical Fire Weather in the Southwest

Scattered severe storms capable of large to very large hail, severe wind gusts, and a few tornadoes will be possible across the central Plains. Heavy rain will pose a flash flood threat across portions of the Mississippi Valley into the Tennessee and Ohio Valleys. Hot, dry and windy conditions will continue to bring a critical fire weather threat from the Southwest into the Great Basin. Read More >

SYNOPSIS: A Canadian winter storm system brought significant snow to the area over the weekend and bitter cold temperatures that will continue through today. Snow began in the northwest Saturday and ended Monday, moving southeast. Some locations saw significant snowfall such as Casper, WY, which saw up to 14.5", making it their 21st biggest snowstorm since 1937. Only a few mountain Snotels also recorded that much snow this storm.

Low temperatures were mostly -15F to -25F across north and central Wyoming Tuesday morning and this morning, with wind chills as low as 40 below at times. Temperatures are only expected to get to between -5F and -20F tonight into Thursday morning with highs getting into the teens to low 20's.

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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?"

**Storm Snow Totals**

	Click Image To Enlarge Snowfall totals for this weekend's winter storm

**Quick View of Expected Wednesday Temperatures and coldest possible Wind Chill Temperatures**

Click Image To Enlarge Recorded Tuesday Morning Lows	Click Image To Enlarge Forecast Low Temperatures on Wednesday Morning, February 21st

Click Image To Enlarge Forecast High Temperatures on Wednesday, February 21st

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Low Temperatures Tuesday Night/Wednesday Morning (Please double check date and time of product)
777 NOUS45 KRIW 250107 PNSRIW WYZ001>020-022>030-251200- Public Information Statement National Weather Service Riverton WY 706 PM MDT Sun May 24 2026 ...12-hour Peak Wind Gusts Ending 6 PM Sunday... Location Speed Time/Date Elevation (ft.) ...Fremont County... Dubois Airport (AWOS) 51 MPH 0255 PM 05/24 7297 Lander 1 (CWOP) 50 MPH 0305 PM 05/24 5797 ...Lincoln County... Mount Coffin (BTAC) 73 MPH 0215 PM 05/24 10855 Kemmerer Airport (AWOS) 46 MPH 1155 AM 05/24 7283 ...Natrona County... I-25 F Street (DOT) 58 MPH 0142 PM 05/24 5312 I-25 Hat Six (DOT) 51 MPH 0216 PM 05/24 5157 Casper Airport (ASOS) 44 MPH 0124 PM 05/24 5348 ...Park County... Mccullough Peaks (PC) 56 MPH 0120 PM 05/24 6077 WY296 Chief J Pass (DOT) 48 MPH 0102 PM 05/24 8084 Crandall 48 MPH 0112 PM 05/24 6640 Cody Airport (AWOS) 46 MPH 0109 PM 05/24 5089 ...Sweetwater County... Rock Springs Airport (ASOS) 59 MPH 0400 PM 05/24 6765 I-80 Bitter Creek (DOT) 47 MPH 0202 PM 05/24 7133 I-80 Baxter Rd (DOT) 45 MPH 0116 PM 05/24 6345 ...Teton County... Surprise Pinnacle (BTAC) 48 MPH 1245 PM 05/24 9770 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. $$

Low Temperatures Tuesday Night/Wednesday Morning
(Please double check date and time of product)

                        
777
NOUS45 KRIW 250107
PNSRIW
WYZ001>020-022>030-251200-

Public Information Statement
National Weather Service Riverton WY
706 PM MDT Sun May 24 2026

...12-hour Peak Wind Gusts Ending 6 PM Sunday...

Location                     Speed     Time/Date       Elevation
                                                       (ft.)

...Fremont County...
Dubois Airport (AWOS)        51 MPH    0255 PM 05/24   7297
Lander 1 (CWOP)              50 MPH    0305 PM 05/24   5797

...Lincoln County...
Mount Coffin (BTAC)          73 MPH    0215 PM 05/24   10855
Kemmerer Airport (AWOS)      46 MPH    1155 AM 05/24   7283

...Natrona County...
I-25 F Street (DOT)          58 MPH    0142 PM 05/24   5312
I-25 Hat Six (DOT)           51 MPH    0216 PM 05/24   5157
Casper Airport (ASOS)        44 MPH    0124 PM 05/24   5348

...Park County...
Mccullough Peaks (PC)        56 MPH    0120 PM 05/24   6077
WY296 Chief J Pass (DOT)     48 MPH    0102 PM 05/24   8084
Crandall                     48 MPH    0112 PM 05/24   6640
Cody Airport (AWOS)          46 MPH    0109 PM 05/24   5089

...Sweetwater County...
Rock Springs Airport (ASOS)  59 MPH    0400 PM 05/24   6765
I-80 Bitter Creek (DOT)      47 MPH    0202 PM 05/24   7133
I-80 Baxter Rd (DOT)         45 MPH    0116 PM 05/24   6345

...Teton County...
Surprise Pinnacle (BTAC)     48 MPH    1245 PM 05/24   9770

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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Current Radar & Web Cams - Click Thumbnails To Enlarge

Northern Rockies Radar	Riverton Radar

Pocatello	Billings

Salt Lake	Cheyenne

Road Conditions and Web Cameras

Teton Pass - Hwy 22	Alpine Junction - U.S. Hwy 26/89/191	Jackson	Togwotee Mountain Lodge

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

South Pass - Hwy 28	Cody	Buffalo - I-25/I-90 Interchange	Casper Mountain

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

Click Here to See All Webcams

If you plan to travel, we recommend checking road conditions along your route and staying on top of road closures here. If you are on Twitter, follow the hashtag: #WyoRoad (or look below) for the latest weather affecting roads and road conditions in and around Wyoming.

Tweets by @NWSRiverton	#WyoRoad Tweets
Get the play-by-play on this storm and contribute your own snow reports to #wywx Follow Us on Twitter @NWSRiverton	On the road? Tweet road conditions to #WyoRoad!

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