399 
WWUS45 KPIH 252036
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
136 PM MST Thu Dec 25 2025

IDZ072>074-261100-
/O.NEW.KPIH.WS.W.0012.251226T0600Z-251227T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-Big Lost
Highlands/Copper Basin-
Including the cities of Copper Basin, Stanley, Galena, Ketchum,
and Sun Valley
136 PM MST Thu Dec 25 2025

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM 
MST SATURDAY...

* WHAT...Moderate to heavy snow expected. Total snow accumulations 4 
  to 8 inches at lower elevations, and 8 to 18 inches above 6500 ft. 
  Winds gusting as high as 40 mph.

* WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin, 
  and Sun Valley Region.

* WHEN...From 11 PM this evening to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult at times, especially near 
  pass level.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ060-064-261100-
/O.NEW.KPIH.WS.W.0012.251226T0900Z-251227T1200Z/
Bear River Range-Big Hole Mountains-
Including the cities of Emigration Summit and Victor
136 PM MST Thu Dec 25 2025

...WINTER STORM WARNING IN EFFECT FROM 2 AM FRIDAY TO 5 AM MST 
SATURDAY...

* WHAT...Moderate to heavy snow expected. Total snow accumulations 4 
  to 8 inches, except 10 to 18 inches above 7000 ft. Winds gusting 
  as high as 40 mph.

* WHERE...Big Hole Mountains and Bear River Range.

* WHEN...From 2 AM Friday to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ066-261100-
/O.NEW.KPIH.WS.W.0012.251226T0900Z-251227T1200Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
136 PM MST Thu Dec 25 2025

...WINTER STORM WARNING IN EFFECT FROM 2 AM FRIDAY TO 5 AM MST 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations 5 to 10 
  inches. Winds gusting as high as 35 mph.

* WHERE...Centennial Mountains - Island Park.

* WHEN...From 2 AM Friday to 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Friday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ071-261100-
/O.NEW.KPIH.WW.Y.0023.251226T0900Z-251227T1200Z/
Frank Church Wilderness-
Including the cities of Clayton
136 PM MST Thu Dec 25 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM FRIDAY TO 5 AM MST 
SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 4 and 8 
  inches above 6500 ft. Winds gusting as high as 40 mph.

* WHERE...Frank Church Wilderness.

* WHEN...From 2 AM Friday to 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

Visit weather.gov/pocatello for more information.

DMH