591
WWUS45 KPIH 230923
WSWPIH
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
323 AM MDT SAT OCT 23 2021
IDZ069-071>074-232200-
/O.CON.KPIH.WS.A.0005.211024T1800Z-211025T1800Z/
LOST RIVER RANGE-FRANK CHURCH WILDERNESS-SAWTOOTH/STANLEY BASIN-
SUN VALLEY REGION-BIG LOST HIGHLANDS/COPPER BASIN-
INCLUDING THE CITIES OF BORAH PEAK, CLAYTON, STANLEY, KETCHUM,
SUN VALLEY, GALENA, AND COPPER BASIN
323 AM MDT SAT OCT 23 2021
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING...
* WHAT...HEAVY WET SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS OF A
COATING TO 3 INCHES BELOW ABOUT 7,000 FEET, WITH 3 TO 12
INCHES ABOVE ABOUT 7,000 FEET AND LOCALLY HIGHER AMOUNTS NEAR
PEAKS AND RIDGES. WINDS COULD GUST AS HIGH AS 35 MPH WITH
LOCALIZED BLOWING SNOW, ESPECIALLY AS YOU INCREASE IN
ELEVATION.
* WHERE...PORTIONS OF THE IDAHO CENTRAL MOUNTAINS, INCLUDING BUT
NOT LIMITED TO THE FRANK CHURCH WILDERNESS, BANNER SUMMIT,
SAWTOOTH MOUNTAINS, GALENA SUMMIT, THE BIG LOST HIGHLANDS, AND
LOST RIVER RANGE.
* WHEN...FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING.
* IMPACTS...WHILE SLICK CONDITIONS AND LIGHT ACCUMULATIONS MAY
OCCUR DOWN INTO STANLEY, KETCHUM, AND SUN VALLEY DURING THIS
EVENT, THE GREATEST CONCERN FOR VERY DIFFICULT TRAVEL WILL EXIST
OVER GALENA SUMMIT, AS WELL AS FOR LOCAL AND BACKCOUNTRY ROADS
ABOVE ABOUT 7,000 FEET. THE MONDAY MORNING COMMUTE WILL LIKELY
BE IMPACTED. IN ADDITION, THE HEAVY, WET NATURE OF THE SNOW MAY
STRAIN WEAKER STRUCTURES AND TREE LIMBS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT
HTTPS://WEATHER.GOV/POCATELLO
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