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Winter Weather Advisory 0039
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2025-12-24 02:15:40 2025-12-25 00:00:00 2025-12-25 18:00:00
Continued 2025-12-24 13:17:20 2025-12-25 00:00:00 2025-12-25 18:00:00
Continued 2025-12-25 03:19:10 2025-12-25 18:00:00
Cancelled 2025-12-25 13:06:19 2025-12-25 18:00:00


Action: New
Issued At: 2025-12-24 02:15:40

560 
WWUS45 KRIW 240815
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
115 AM MST Wed Dec 24 2025

WYZ012-014-250000-
/O.NEW.KRIW.WW.Y.0039.251225T0600Z-251226T0000Z/
Teton and Gros Ventre Mountains-Wind River Mountains West-
115 AM MST Wed Dec 24 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM 
MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches. 
  Winds gusting as high as 45 mph.

* WHERE...Wind River Mountains West and Teton and Gros Ventre 
  Mountains.

* WHEN...From 11 PM this evening to 5 PM MST Thursday.

* IMPACTS...Travel could be difficult, including over Teton and 
  Togwotee Passes.

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 .

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/riw/ .

Hattings


Action: Continued
Issued At: 2025-12-24 13:17:20

343 
WWUS45 KRIW 241916
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1216 PM MST Wed Dec 24 2025

WYZ012-014-251415-
/O.CON.KRIW.WW.Y.0039.251225T0600Z-251226T0000Z/
Teton and Gros Ventre Mountains-Wind River Mountains West-
1216 PM MST Wed Dec 24 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING 
TO 5 PM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches. 
  Winds gusting as high as 50 mph.

* WHERE...Wind River Mountains West and Teton and Gros Ventre 
  Mountains.

* WHEN...From 11 PM this evening to 5 PM MST Thursday.

* IMPACTS...Travel could be difficult, including over Teton and 
  Togwotee Passes.

* ADDITIONAL DETAILS...Snow levels will generally be 8500 to 9000 
  feet Wednesday night, dropping to around 7000 feet for Thursday 
  afternoon. Sharp drops in snow amounts are expected at and below 
  snow levels.

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 .

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/riw/ .

Wittmann


Action: Continued
Issued At: 2025-12-25 03:19:10

724 
WWUS45 KRIW 250919
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
219 AM MST Thu Dec 25 2025

WYZ012-014-260000-
/O.CON.KRIW.WW.Y.0039.000000T0000Z-251226T0000Z/
Teton and Gros Ventre Mountains-Wind River Mountains West-
219 AM MST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations of 4 to 8 inches. Winds 
  gusting as high as 45 mph.

* WHERE...Wind River Mountains West and Teton and Gros Ventre 
  Mountains.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel could be difficult, including over Teton and 
  Togwotee Passes.

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 .

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/riw/ .

Hattings


Action: Cancelled
Issued At: 2025-12-25 13:06:19

139 
WWUS45 KRIW 251906
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1206 PM MST Thu Dec 25 2025

WYZ012-014-252015-
/O.CAN.KRIW.WW.Y.0039.000000T0000Z-251226T0000Z/
Teton and Gros Ventre Mountains-Wind River Mountains West-
1206 PM MST Thu Dec 25 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

The majority of snow has ended, with isolated snow showers through 
the rest of today.

$$

For more information from the National Weather Service, visit 
https://weather.gov/riw/ .

Wittmann



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