Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
313 AM MST Fri Nov 21 2025
WYZ001>020-022>030-221415-
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-
313 AM MST Fri Nov 21 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Patchy areas of fog are possible during the morning mainly across
portions of southwestern, southern, and central WY. Fog should
gradually dissipate by the late morning. A few isolated showers may
be possible over far southern WY during the day.
.DAYS TWO THROUGH SEVEN...Saturday through Thanksgiving Day.
Monday through Wednesday... Potent disturbance looks to bring colder
temperatures and gusty winds. Light snow will also be possible
across western and far northern WY. Snow accumulations look minimal
at this time with an few inches possible in the mountains and a
coating for lower elevations. Some of the coldest temperatures of the
season look possible for Tuesday and Wednesday.
Thanksgiving Day... Another disturbance enters the region bringing
increased chances for snowfall across western and far northern WY.
Some impacts may be seen on western mountain passes however at this
time exact impacts remain uncertain at this time.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
