Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Riverton WY
256 AM MDT Mon Oct 27 2025

WYZ001>020-022>030-281300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
256 AM MDT Mon Oct 27 2025

...Winter Storm Warnings and Winter Weather Advisories in effect
through this afternoon for western and northern mountain ranges...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Gusty northwest winds develop this morning and continue through the
day. Some areas may gust above 50 mph at times.

Winter weather continues for northwest mountains and the Bighorn
Range through this evening. An additional 3 to 6 inches of snow is
expected.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Cold temperatures Tuesday night with lows in the teens and lower 20s.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
115 PM MDT Sun Oct 26 2025

WYZ014-015-271300-
/O.CON.KRIW.WW.Y.0029.000000T0000Z-251027T1800Z/
Wind River Mountains West-Wind River Mountains East-
115 PM MDT Sun Oct 26 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY...

* WHAT...Snow expected. Additional snow accumulations of 15 to 20
  inches above 10,000 ft and 8 to 15 inches between 9,000 ft and
  10,000 ft. Generally less than 8 inches of snow expected below
  9,000 ft. Winds gusting as high as 60 mph.

* WHERE...Wind River Mountains East and Wind River Mountains West.

* WHEN...Until noon MDT Monday.

* IMPACTS...Travel could be very difficult along mountain roads.

* ADDITIONAL DETAILS...4 to 8 inches of snow is expected across
  Union Pass. 2 to 4 inches is expected across South Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

&&

$$

Hazard Report Provided By forecast.weather.gov