486
WWUS46 KPDT 162141
WSWPDT
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
141 PM PST TUE DEC 16 2025
ORZ509-171530-
/O.EXB.KPDT.WW.Y.0027.251217T0900Z-251218T0000Z/
EAST SLOPES OF THE OREGON CASCADES-
INCLUDING THE CITIES OF CAMP SHERMAN, SUNRIVER, SISTERS, AND LA
PINE
141 PM PST TUE DEC 16 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 4 PM PST WEDNESDAY
ABOVE 4000 FEET...
* WHAT...SNOW EXPECTED ABOVE 4000 FEET. TOTAL SNOW ACCUMULATIONS OF
3 TO 7 INCHES. WINDS GUSTING AS HIGH AS 65 MPH.
* WHERE...EAST SLOPES OF THE OREGON CASCADES.
* WHEN...FROM 1 AM TO 4 PM PST WEDNESDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO HEAVY SNOWFALL, VERY STRONG WINDS, AND BLOWING SNOW
COULD SIGNIFICANTLY REDUCE VISIBILITY ALONG US 26 AND US 20.
* ADDITIONAL DETAILS...NEAR-BLIZZARD CONDITIONS CHARACTERIZED BY
VERY STRONG WINDS AND LOW VISIBILITY ARE EXPECTED WITH THE PASSAGE
OF A STRONG COLD FRONT TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING.
TEMPERATURES WILL FALL QUICKLY WITH THE PASSAGE OF THE COLD FRONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS CAN BE OBTAINED BY VISITING TRIPCHECK.COM ONLINE, OR BY
CALLING 5 1 1.
WAZ523-171530-
/O.EXB.KPDT.WW.Y.0027.251217T0900Z-251218T0600Z/
LOWER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST-
INCLUDING THE CITIES OF CLE ELUM, APPLETON, AND CLIFFDELL
141 PM PST TUE DEC 16 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 10 PM PST
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 3 TO 7 INCHES,
HIGHEST ABOVE 3000 FEET. WINDS GUSTING AS HIGH AS 60 MPH.
* WHERE...LOWER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST.
* WHEN...FROM 1 AM TO 10 PM PST WEDNESDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO HEAVY SNOWFALL, VERY STRONG WINDS, AND BLOWING SNOW
COULD SIGNIFICANTLY REDUCE VISIBILITY ALONG I-90, US 12, AND US 97.
* ADDITIONAL DETAILS...NEAR-BLIZZARD CONDITIONS CHARACTERIZED BY
VERY STRONG WINDS AND LOW VISIBILITY ARE EXPECTED WITH THE PASSAGE
OF A STRONG COLD FRONT TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING.
TEMPERATURES WILL FALL QUICKLY WITH THE PASSAGE OF THE COLD FRONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS CAN BE OBTAINED BY VISITING THE WEBSITE
WSDOT.WA.GOV/TRAVEL.
ORZ502-503-171530-
/O.EXB.KPDT.WW.Y.0027.251217T1200Z-251217T1800Z/
NORTHERN BLUE MOUNTAINS OF OREGON-SOUTHERN BLUE MOUNTAINS OF
OREGON-
INCLUDING THE CITIES OF TOLLGATE, LONG CREEK, UKIAH, MEACHAM, AND
NORTH POWDER
141 PM PST TUE DEC 16 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 AM PST
WEDNESDAY...
* WHAT...SNOW AND VERY STRONG WINDS EXPECTED. TOTAL SNOW
ACCUMULATIONS OF 1 TO 4 INCHES. WINDS GUSTING AS HIGH AS 75 MPH.
* WHERE...BLUE MOUNTAINS OF OREGON.
* WHEN...FROM 4 AM TO 10 AM PST WEDNESDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO HEAVY SNOWFALL, VERY STRONG WINDS, AND BLOWING SNOW
COULD SIGNIFICANTLY REDUCE VISIBILITY ALONG I-84, OR204, AND US
395.
* ADDITIONAL DETAILS...NEAR-BLIZZARD CONDITIONS CHARACTERIZED BY
VERY STRONG WINDS AND LOW VISIBILITY ARE EXPECTED WITH THE PASSAGE
OF A STRONG COLD FRONT TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING.
TEMPERATURES WILL FALL QUICKLY WITH THE PASSAGE OF THE COLD FRONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS CAN BE OBTAINED BY VISITING TRIPCHECK.COM ONLINE, OR BY
CALLING 5 1 1.
WAZ522-171530-
/O.CON.KPDT.WW.Y.0027.251217T0000Z-251218T0600Z/
UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST-
INCLUDING THE CITIES OF ROSLYN AND EASTON
141 PM PST TUE DEC 16 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND 12
INCHES, HIGHEST ABOVE 3000 FEET. WINDS GUSTING AS HIGH AS 60 MPH.
* WHERE...UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST.
* WHEN...UNTIL 10 PM PST WEDNESDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO HEAVY SNOWFALL, VERY STRONG WINDS, AND BLOWING SNOW
COULD SIGNIFICANTLY REDUCE VISIBILITY ALONG I-90 AND US 12.
* ADDITIONAL DETAILS...NEAR-BLIZZARD CONDITIONS CHARACTERIZED BY
VERY STRONG WINDS AND LOW VISIBILITY ARE EXPECTED WITH THE PASSAGE
OF A STRONG COLD FRONT TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING.
TEMPERATURES WILL FALL QUICKLY WITH THE PASSAGE OF THE COLD FRONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS CAN BE OBTAINED BY VISITING THE WEBSITE
WSDOT.WA.GOV/TRAVEL.
PDT
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