167  
WWUS46 KPDT 102051  
WSWPDT  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE PENDLETON OR  
151 PM PDT TUE MAR 10 2026  
 
WAZ522-111500-  
/O.CON.KPDT.WS.W.0003.260311T0000Z-260313T1200Z/  
UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST-  
INCLUDING THE CITIES OF ROSLYN AND EASTON  
151 PM PDT TUE MAR 10 2026  
 
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON  
TO 5 AM PDT FRIDAY...  
 
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND  
3 FEET. WINDS GUSTING AS HIGH AS 55 MPH BETWEEN 8 PM WEDNESDAY AND  
11 AM THURSDAY.  
 
* WHERE...UPPER SLOPES OF THE EASTERN WASHINGTON CASCADES CREST.  
 
* WHEN...FROM 5 PM THIS AFTERNOON TO 5 AM PDT FRIDAY.  
 
* IMPACTS...SIGNIFICANT SNOWFALL WITH PERIODS OF HEAVY SNOWFALL  
RATES WILL COMBINE WITH LOW VISIBILITY TO CREATE DIFFICULT DRIVING  
CONDITIONS.  
 
* ADDITIONAL DETAILS...SNOW WILL EASE LATE WEDNESDAY MORNING THROUGH  
EARLY THURSDAY MORNING AS SNOW LEVELS RISE, BRINGING A WINTERY MIX  
OR RAIN BEFORE DECREASING THURSDAY AND HEAVY SNOW RETURNING TO THE  
PASSES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
PERSONS SHOULD CONSIDER DELAYING ALL TRAVEL. IF TRAVEL IS ABSOLUTELY  
NECESSARY, DRIVE WITH EXTREME CAUTION. CONSIDER TAKING A WINTER  
STORM KIT ALONG WITH YOU, INCLUDING SUCH ITEMS AS TIRE CHAINS,  
BOOSTER CABLES, FLASHLIGHT, SHOVEL, BLANKETS AND EXTRA CLOTHING.  
ALSO TAKE WATER, A FIRST AID KIT, AND ANYTHING ELSE THAT WOULD HELP  
YOU SURVIVE IN CASE YOU BECOME STRANDED.  
 
DO NOT TOUCH DOWNED LINES AND REPORT ANY POWER OUTAGES TO YOUR  
ELECTRIC COMPANY. TRAVEL IS HIGHLY DISCOURAGED DUE TO SLICK ROADWAYS  
AND THE POSSIBILITY OF DOWNED TREES AND POWER LINES.  
 
 
 
 
 
ORZ509-111500-  
/O.CON.KPDT.WW.Y.0008.000000T0000Z-260312T0000Z/  
EAST SLOPES OF THE OREGON CASCADES-  
INCLUDING THE CITIES OF SUNRIVER, CAMP SHERMAN, SISTERS, AND LA  
PINE  
151 PM PDT TUE MAR 10 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT  
WEDNESDAY ABOVE 4500 FEET...  
 
* WHAT...SNOW EXPECTED ABOVE 4500 FEET. TOTAL SNOW ACCUMULATIONS  
BETWEEN 5 AND 10 INCHES. WINDS GUSTING AS HIGH AS 45 MPH.  
 
* WHERE...EAST SLOPES OF THE OREGON CASCADES.  
 
* WHEN...UNTIL 5 PM PDT WEDNESDAY.  
 
* IMPACTS...PERIODS OF MODERATE AND HEAVY SNOW WILL COMBINE WITH LOW  
VISIBILITIES TO CREATE DIFFICULT DRIVING CONDITIONS. GUSTY WINDS  
COULD BRING DOWN TREE BRANCHES.  
 
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.  
 
 
 
 
 
WAZ030-111500-  
/O.CON.KPDT.WW.Y.0008.260311T0300Z-260312T0300Z/  
NORTHWEST BLUE MOUNTAINS-  
INCLUDING THE CITIES OF SKI BLUEWOOD RESORT  
151 PM PDT TUE MAR 10 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING  
TO 8 PM PDT WEDNESDAY...  
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 6 AND 11  
INCHES. WINDS GUSTING AS HIGH AS 40 MPH.  
 
* WHERE...NORTHWEST BLUE MOUNTAINS.  
 
* WHEN...FROM 8 PM THIS EVENING TO 8 PM PDT WEDNESDAY.  
 
* IMPACTS...PERIODS OF MODERATE AND HEAVY SNOW WILL COMBINE WITH LOW  
VISIBILITIES TO CREATE DIFFICULT DRIVING CONDITIONS. GUSTY WINDS  
COULD BRING DOWN TREE BRANCHES.  
 
* ADDITIONAL DETAILS...ADDITIONAL MODERATE TO LOCALLY HEAVY SNOW IS  
POSSIBLE 5 AM THURSDAY TO 5 AM FRIDAY.  
 
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.  
 
 
 
 
 
MF  
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