478  
WWUS86 KPDT 140329  
SPSPDT  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE PENDLETON OR  
829 PM PDT THU AUG 13 2026  
 
ORZ509-140345-  
EAST SLOPES OF THE OREGON CASCADES OR-  
829 PM PDT THU AUG 13 2026  
 
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN DESCHUTES COUNTY  
THROUGH 845 PM PDT...  
 
AT 829 PM PDT, DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR  
BLACK BUTTE RANCH, OR 24 MILES WEST OF REDMOND, MOVING NORTHWEST AT 5  
MPH.  
 
HAZARD...WIND GUSTS UP TO 40 MPH AND HALF INCH HAIL.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...GUSTY WINDS COULD KNOCK DOWN TREE LIMBS AND BLOW AROUND  
UNSECURED OBJECTS. MINOR HAIL DAMAGE TO VEGETATION IS  
POSSIBLE.  
 
LOCATIONS IMPACTED INCLUDE...  
BLACK BUTTE RANCH.  
 
THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 92 AND 98.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF OUTDOORS, CONSIDER SEEKING SHELTER INSIDE A BUILDING.  
 

 
 
LAT...LON 4431 12157 4426 12172 4432 12181 4444 12157  
TIME...MOT...LOC 0329Z 149DEG 5KT 4433 12166  
 
MAX HAIL SIZE...0.50 IN  
MAX WIND GUST...40 MPH  
 

 
 
MD  
 
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