Quick Hitting Storm to Bring Snow to Much of the Area This Morning


The National Weather Service

Building a Weather-Ready Nation

  Summary | Forecast | Monitoring & Reporting Snowfall | Safety

Click to enlarge

Several inches of snow could fall in a short period of time around the morning commute. Please give yourself extra time this morning and drive with your headlights on.

A quick-hitting storm system will bring a shot of moderate snow to much of the state today. Snow will hit across northern portions around sunrise this morning, reducing visibility and leading to difficult travel during the morning commute. Snow will be ongoing across the Bighorn basin, Johnson County, Park County, Teton Pass, and Togwotee Pass at sunrise. Snow will quickly spread into Riverton, Casper, Lander, and Dubois during the morning hours; it will then cease from north to south in the afternoon, clearing most of the area by sunset with only a few flurries remaining across Sweetwater County and in the Wind River Mountains. Clearing skies, light winds, and mild air moving in from the west will cause widespread fog overnight tonight into Wednesday morning, again expected to affect the morning commute on Wednesday, especially in the central basins.

The Bridger-Teton Avalanche center currently has avalanche danger as Considerable across their forecast areas. Significant avalanche activity has been observed recently, including some 100 year events and even a fatality, so please be aware of the danger if you are going out into the back country as more snow will certainly not make conditions any safer.

Roads and passes across western and central Wyoming could have restricted travel or could close during this event. For the most up-to-date Wyoming road conditions information, please visit WYDOT's Travel Information Map.  Anyone who feels they must travel should make sure to have these items in their car (click here).



NWS Text Products and Forecasts
  Area Forecast Discussion
  Winter Watch / Warning
  Special Weather Statement
  What Does That Highlight Mean? 
  Watch/Warning Map
   Weather Story
  Latest Snow and Wind Reports


A cold front will drop south through the morning hours accompanied by periods of light to moderate snow and gusty north wind. The front will be through the Bighorn Basin and into Natrona County around sunrise, traveling to Lander, Riverton, Dubois, and Jeffrey City shortly thereafter. This will be a quick-hitting system with a few hours of intense snow in the morning, clearing from north to south in the mid to late afternoon. There will be clear skies overnight but mild air will be moving in from the west, so temperatures will not drop as much as they usually do behind these systems. However, there could be widespread valley fog overnight into Wednesday morning, especially in areas that recieve several inches of fresh snow today.

The main impact of this storm is expected to be on travel this morning, so keep an eye on conditions along your route with our webcam mosaic page, and check for road closures and conditions here.

Click to enlarge Click to enlarge

Click Image To Enlarge

12 Hour Snow Accumulation Forecast

Click Loop To Enlarge

The above loop shows the progression and timing of the snow through 8pm tonight; beginning at 11PM Monday (Tue 06:00Z in the bottom right hand corner) and going forward in three hour time steps through 8PM tonight (Wed 03:00Z).

The loop shows that snow is ongoing across the far north, spreading south toward the Owl Creeks and into Natrona County by 8am, and into the entirety of the Wind River Basin by 11am. Snow eventually spreads into Sweetwater County in the afternoon as it is already ending across the north.

Click to enlarge

Click Image To Enlarge

Peak Wind Gusts (shades) and Direction (arrows). There could be some gusty winds with the front, with some gusts over 40mph possible at the mouth of the Wind River Canyon.

Click to enlarge Click to enlarge

Click Image To Enlarge

Tomorrow's High Temperature

Click Image To Enlarge

Tonight's Low Temperature


Please continue to call/send us your snow reports!

Monitor our Severe Weather Summary Page for current Warnings, Watches, and Advisories. What's the difference?
            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 eSpotter, email (cr.wxriw@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.

Winter Safety Kit      |      Winter Weather Safety

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














Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.