925  
WWUS76 KPDT 292045  
NPWPDT  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE PENDLETON OR  
145 PM PDT TUE JUL 29 2025  
 
ORZ041-508-510-WAZ024-521-302300-  
/O.NEW.KPDT.HT.Y.0005.250730T1900Z-250731T0600Z/  
EASTERN COLUMBIA RIVER GORGE OF OREGON-FOOTHILLS OF THE SOUTHERN  
BLUE MOUNTAINS OF OREGON-NORTH CENTRAL OREGON-EASTERN COLUMBIA  
RIVER GORGE OF WASHINGTON-SIMCOE HIGHLANDS-  
INCLUDING THE CITIES OF HEPPNER, FOSSIL, MAUPIN, MORO, BICKLETON,  
WHITE SALMON, CONDON, GOLDENDALE, THE DALLES, DUFUR, AND  
ARLINGTON  
145 PM PDT TUE JUL 29 2025  
   
..HEAT ADVISORY IN EFFECT FROM NOON TO 11 PM PDT WEDNESDAY
 
 
* WHAT...HOT CONDITIONS. AFTERNOON HIGH TEMPERATURES OF 95 TO 100  
DEGREES AND OVERNIGHT LOW TEMPERATURES OF 65 TO 75 DEGREES  
EXPECTED. THIS WILL POSE A MODERATE TO MAJOR RISK OF HEAT-RELATED  
ILLNESS.  
 
* WHERE...EASTERN COLUMBIA RIVER GORGE OF OREGON AND WASHINGTON,  
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL  
OREGON, AND SIMCOE HIGHLANDS.  
 
* WHEN...FROM NOON TO 11 PM PDT WEDNESDAY.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. YOUNG CHILDREN AND  
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY  
CIRCUMSTANCES.  
 
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN  
POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR  
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT  
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.  
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND  
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN  
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT  
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN  
EMERGENCY! CALL 9 1 1.  
 
FOR SHELTERING INFORMATION AND OTHER HUMAN SERVICES IN YOUR AREA,  
DIAL 2 1 1 DURING BUSINESS HOURS OR VISIT 211INFO.ORG FOR OREGON OR  
WA211.ORG FOR WASHINGTON ANYTIME.  
 

 
 

 
 
ORZ044-507-WAZ026>029-302300-  
/O.NEW.KPDT.HT.Y.0005.250730T1900Z-250801T0600Z/  
LOWER COLUMBIA BASIN OF OREGON-FOOTHILLS OF THE NORTHERN BLUE  
MOUNTAINS OF OREGON-KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA  
BASIN OF WASHINGTON-FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-  
INCLUDING THE CITIES OF PENDLETON, YAKIMA, PROSSER, ELLENSBURG,  
TRI-CITIES, DAYTON, SUNNYSIDE, WALLA WALLA, BOARDMAN, CONNELL,  
THORP, NACHES, TOPPENISH, WAITSBURG, HERMISTON, ATHENA, IONE, AND  
PILOT ROCK  
145 PM PDT TUE JUL 29 2025  
 
...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 11 PM PDT  
THURSDAY...  
 
* WHAT...HOT CONDITIONS. AFTERNOON HIGH TEMPERATURES OF 95 TO 105  
DEGREES AND OVERNIGHT LOW TEMPERATURES OF 60 TO 70 DEGREES  
EXPECTED. THIS WILL POSE A MODERATE TO MAJOR RISK OF HEAT-RELATED  
ILLNESS.  
 
* WHERE...LOWER COLUMBIA BASIN OF OREGON AND WASHINGTON, FOOTHILLS  
OF THE NORTHERN BLUE MOUNTAINS OF OREGON, KITTITAS VALLEY, YAKIMA  
VALLEY, AND FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON.  
 
* WHEN...FROM NOON WEDNESDAY TO 11 PM PDT THURSDAY.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES. EXTREME HEAT  
WILL SIGNIFICANTLY INCREASE THE RISK OF HEAT-RELATED ILLNESSES FOR  
MUCH OF THE POPULATION, ESPECIALLY THOSE WHO ARE HEAT SENSITIVE  
AND THOSE WITHOUT EFFECTIVE COOLING OR ADEQUATE HYDRATION.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. YOUNG CHILDREN AND  
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY  
CIRCUMSTANCES.  
 
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN  
POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR  
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT  
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.  
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND  
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN  
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT  
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN  
EMERGENCY! CALL 9 1 1.  
 
FOR SHELTERING INFORMATION AND OTHER HUMAN SERVICES IN YOUR AREA,  
DIAL 2 1 1 DURING BUSINESS HOURS OR VISIT 211INFO.ORG FOR OREGON OR  
WA211.ORG FOR WASHINGTON ANYTIME.  
 

 
 

 
 
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