689  
WWUS76 KSEW 232330  
NPWSEW  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SEATTLE WA  
430 PM PDT MON JUL 23 2018  
 
WAZ504-509-556-558-240200-  
/O.CON.KSEW.HT.Y.0001.000000T0000Z-180724T0400Z/  
SOUTHWEST INTERIOR-TACOMA AREA-BELLEVUE AND VICINITY-  
SEATTLE AND VICINITY-  
430 PM PDT MON JUL 23 2018  
 
...HEAT ADVISORY REMAINS IN EFFECT FOR PARTS OF THE PUGET SOUND  
REGION AND SOUTHWEST INTERIOR UNTIL 9 PM PDT THIS EVENING...  
 
* TEMPERATURES...EXPECT MAX TEMPERATURES TO PEAK IN THE UPPER 80S  
TO MID 90S ACROSS MUCH OF THE AREA THIS AFTERNOON, WITH SOME  
PLACES CLIMBING INTO THE UPPER 90S OR NEAR 100 DEGREES IN  
THURSTON AND LEWIS COUNTIES.  
 
* SOME AFFECTED LOCATIONS...OLYMPIA, SEATTLE, TACOMA, BELLEVUE,  
AND CENTRALIA.  
 
* TIMING...TEMPERATURES WILL PEAK BETWEEN 5 PM AND 6 PM PDT. BY 9  
PM PDT, THIS EVENING, MOST PLACES WILL BE IN THE UPPER 70S TO  
MID 80S.  
 
* IMPACTS...HOT WEATHER INCREASES THE RISK OF HEAT-RELATED  
ILLNESSES, ESPECIALLY FOR SENSITIVE GROUPS, THOSE WITHOUT ACCESS  
TO AIR CONDITIONING, AND THOSE WHO WORK OUTDOORS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS  
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY  
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE  
POSSIBLE. DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM,  
STAY OUT OF THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.  
 
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 LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE  
AND DRINK PLENTY OF WATER.  
 
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.  
 

 
 

 
 
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