807
WWUS46 KPDT 172003
WSWPDT
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
1203 PM PST WED DEC 17 2025
ORZ502-WAZ030-181215-
/O.EXB.KPDT.WW.Y.0027.251218T1200Z-251219T0000Z/
NORTHERN BLUE MOUNTAINS OF OREGON-NORTHWEST BLUE MOUNTAINS-
INCLUDING THE CITIES OF MEACHAM, TOLLGATE, AND SKI BLUEWOOD
RESORT
1203 PM PST WED DEC 17 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM PST
THURSDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 TO 7
INCHES. FREEZING RAIN UP TO A TENTH OF AN INCH THURSDAY.
* WHERE...IN OREGON, NORTHERN BLUE MOUNTAINS OF OREGON. IN
WASHINGTON, NORTHWEST BLUE MOUNTAINS.
* WHEN...FROM 4 AM TO 4 PM PST THURSDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO
HEAVY SNOWFALL AND STRONG WINDS CAN REDUCE VISIBILITY ALONG I-84
AND US82.
* ADDITIONAL DETAILS...CONFIDENCE IN MORE THAN A TENTH OF AN INCH
FREEZING RAIN THURSDAY IS LOW (LESS THAN 30 PERCENT CHANCE).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. IN OREGON, THE LATEST
ROAD CONDITIONS CAN BE OBTAINED BY VISITING TRIPCHECK.COM ONLINE, OR
BY CALLING 5 1 1. IN WASHINGTON, THE LATEST ROAD CONDITIONS CAN BE
OBTAINED BY VISITING THE WEBSITE WSDOT.WA.GOV/TRAVEL.
ORZ509-181215-
/O.EXB.KPDT.WW.Y.0027.251218T1200Z-251219T1800Z/
EAST SLOPES OF THE OREGON CASCADES-
INCLUDING THE CITIES OF SUNRIVER, CAMP SHERMAN, SISTERS, AND LA
PINE
1203 PM PST WED DEC 17 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM PST
FRIDAY...
* WHAT...SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND 7 INCHES
EXPECTED. WINDS GUSTING AS HIGH AS 45 MPH.
* WHERE...EAST SLOPES OF THE OREGON CASCADES.
* WHEN...FROM 4 AM THURSDAY TO 10 AM PST FRIDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO
HEAVY SNOWFALL AND STRONG WINDS CAN REDUCE VISIBILITY ALONG US 26
AND US 20.
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.
WAZ522-181215-
/O.CON.KPDT.WW.Y.0027.000000T0000Z-251219T0000Z/
UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST-
INCLUDING THE CITIES OF EASTON AND ROSLYN
1203 PM PST WED DEC 17 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
THURSDAY...
* WHAT...SNOW AND FREEZING RAIN. ADDITIONAL SNOW ACCUMULATIONS
BETWEEN 4 AND
10 INCHES MOSTLY THROUGH THURSDAY MORNING. FREEZING RAIN UP TO A
TENTH OF AN INCH THURSDAY.
* WHERE...UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST.
* WHEN...UNTIL 4 PM PST THURSDAY.
* IMPACTS...PLAN ON WINTER WEATHER DRIVING CONDITIONS. PERIODS OF
MODERATE TO
HEAVY SNOWFALL, STRONG WINDS, AND BLOWING SNOW COULD SIGNIFICANTLY
REDUCE VISIBILITY ALONG I-90 AND US 12. FREEZING RAIN COULD BRING
SLIPPERY CONDITIONS.
* ADDITIONAL DETAILS...CONFIDENCE IN MORE THAN A TENTH OF AN INCH
FREEZING RAIN THURSDAY IS LOW (LESS THAN 20 PERCENT CHANCE).
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.
WAZ523-181215-
/O.CON.KPDT.WW.Y.0027.000000T0000Z-251219T0000Z/
LOWER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST-
INCLUDING THE CITIES OF CLE ELUM, CLIFFDELL, AND APPLETON
1203 PM PST WED DEC 17 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
THURSDAY...
* WHAT...SNOW AND FREEZING RAIN. ADDITIONAL SNOW ACCUMULATIONS
BETWEEN 2 AND
6 INCHES MOSTLY THROUGH THURSDAY MORNING. FREEZING RAIN UP TO A
TENTH OF AN INCH THURSDAY.
* WHERE...LOWER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST.
* WHEN...UNTIL 4 PM PST THURSDAY.
* IMPACTS...TRAVEL COULD BE DIFFICULT DUE TO PERIODS OF MODERATE TO
HEAVY SNOW. GUSTY WINDS COULD BRING DOWN TREE BRANCHES. FREEZING
RAIN COULD BRING
SLIPPERY CONDITIONS.
* ADDITIONAL DETAILS...CONFIDENCE IN MORE THAN A TENTH OF AN INCH
FREEZING RAIN THURSDAY IS LOW (LESS THAN 20 PERCENT CHANCE).
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.
MD
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