997
WWUS45 KPIH 182011
WSWPIH
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
111 PM MST THU DEC 18 2025
IDZ071>074-191200-
/O.CON.KPIH.WS.W.0009.000000T0000Z-251220T1200Z/
FRANK CHURCH WILDERNESS-SAWTOOTH/STANLEY BASIN-SUN VALLEY REGION-
BIG LOST HIGHLANDS/COPPER BASIN-
INCLUDING THE CITIES OF KETCHUM, CLAYTON, COPPER BASIN, STANLEY,
GALENA, AND SUN VALLEY
111 PM MST THU DEC 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY
* WHAT...LIGHT TO MODERATE VALLEY SNOW AND HEAVY MOUNTAIN SNOW.
SEVERAL INCHES OF ACCUMULATION BELOW 7,000 FEET, INCLUDING 5 TO 8
INCHES IN STANLEY AND KETCHUM. ONE TO TWO FEET ACCUMULATION ABOVE
7,000 FEET, INCLUDING TWO FEET ON GALENA SUMMIT. WIND GUSTS AS
HIGH AS AROUND 45 MPH.
* WHERE...BIG LOST HIGHLANDS/COPPER BASIN, FRANK CHURCH WILDERNESS,
SAWTOOTH/STANLEY BASIN, AND SUN VALLEY REGION.
* WHEN...UNTIL 5 AM MST SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. THE
HAZARDOUS CONDITIONS COULD IMPACT THE THURSDAY EVENING AND FRIDAY
MORNING COMMUTES. GUSTY WINDS COULD BRING DOWN TREE BRANCHES.
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.
IDZ060-063-064-066-191200-
/O.CON.KPIH.WW.Y.0020.000000T0000Z-251220T1200Z/
BEAR RIVER RANGE-CARIBOU RANGE-BIG HOLE MOUNTAINS-CENTENNIAL
MOUNTAINS - ISLAND PARK-
INCLUDING THE CITIES OF ISLAND PARK, VICTOR, SWAN VALLEY, WAYAN,
EMIGRATION SUMMIT, AND KILGORE
111 PM MST THU DEC 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND 9
INCHES BELOW 7000 FEET WITH AROUND 10 TO 14 INCHES ABOVE 7000
FEET. WINDS GUSTING AS HIGH AS AROUND 40 MPH.
* WHERE...BIG HOLE MOUNTAINS, CENTENNIAL MOUNTAINS - ISLAND PARK,
BEAR RIVER RANGE, AND CARIBOU RANGE.
* WHEN...UNTIL 5 AM MST SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
GUSTY WINDS COULD BRING DOWN TREE BRANCHES.
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.
MCKAUGHAN
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