Watches, Warnings & Advisories



2 products issued by NWS for: Mills WY

High Wind Watch

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
119 PM MST Mon Dec 15 2025

WYZ019-020-022-161415-
/O.NEW.KRIW.HW.A.0011.251217T0800Z-251218T0600Z/
Green Mountains and Rattlesnake Range-Natrona County Lower
Elevations-Casper Mountain-
Including the cities of Jeffrey City and Casper
119 PM MST Mon Dec 15 2025

...HIGH WIND WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY EVENING...

* WHAT...West to southwest winds 35 to 45 mph with gusts up to 70
  mph possible.

* WHERE...Casper Mountain, Green Mountains and Rattlesnake Range,
  and Natrona County Lower Elevations.

* WHEN...From late Tuesday night through Wednesday evening.

* IMPACTS...Strong winds could blow down trees and power lines.
  Travel may be difficult, especially for high profile vehicles.

$$



Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
207 AM MST Mon Dec 15 2025

WYZ001>020-022>030-161315-
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-
207 AM MST Mon Dec 15 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Dry conditions and above normal temperatures return today. Gusty
winds will be mainly confined to the Wind Corridor and the east
slopes of the Absaroka, Bighorn and Wind River Mountains.

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

Tuesday...A few inches of snow will occur over the higher elevations
in the western mountains tonight into Tuesday night. Rain to a
rain/snow mix will occur in the Jackson and Star Valleys during the
day and into the evening.

Tuesday night to Wednesday night...Snow spreading into the western
mountains. Strong to high wind likely across much of the area.

Thursday night and Friday...Another chance for snow in the west
and strong to high wind east of the Divide.

.SPOTTER INFORMATION STATEMENT...

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

$$