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

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

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.

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
Click Images To Enlarge

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
Click Images To Enlarge


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)
837 NOUS45 KRIW 311624 PNSRIW WYZ001>020-022>030-010424- Public Information Statement National Weather Service Riverton WY 1024 AM MDT Mon Aug 31 2026 This is just a quick check of IRIS communications between RIW and SLC.

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

                        
837
NOUS45 KRIW 311624
PNSRIW
WYZ001>020-022>030-010424-

Public Information Statement
National Weather Service Riverton WY
1024 AM MDT Mon Aug 31 2026

This is just a quick check of IRIS communications between RIW and SLC.

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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 click the WYDOT Logo for road conditions

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	Salt River Pass	Buffalo - I-25/I-90 Interchange	Casper Mountain

I-80 - Little America	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	A Twitter List by NWSRiverton
Get the play-by-play on this storm and contribute your own snow reports to #wywx Follow Us on Twitter @NWSRiverton

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	Monitor our Weather Summary Page for current Warnings, Watches, and Advisories. What's the difference?
	Check the latest Weather Story graphic for an overview of the area forecast.
	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.
	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.

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