438  
WWUS75 KSLC 182208  
NPWSLC  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
408 PM MDT WED JUN 18 2025  
 
UTZ101>106-191315-  
/O.CON.KSLC.HT.Y.0001.250619T1800Z-250620T0500Z/  
GREAT SALT LAKE DESERT AND MOUNTAINS-TOOELE AND RUSH VALLEYS-  
EASTERN BOX ELDER COUNTY-NORTHERN WASATCH FRONT-SALT LAKE VALLEY-  
UTAH VALLEY-  
INCLUDING THE FOLLOWING LOCATIONS - PROVO, SALT LAKE CITY,  
TOOELE, LEHI, GRANTSVILLE, WENDOVER, VERNON, DUGWAY, BOUNTIFUL,  
SANDY, WEST JORDAN, OGDEN, BRIGHAM CITY, SNOWVILLE, PARK VALLEY,  
AND PAYSON  
408 PM MDT WED JUN 18 2025  
   
..HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 11 PM MDT THURSDAY
 
 
* WHAT...TEMPERATURES UP TO 103 EXPECTED RESULTING IN A MAJOR  
HEATRISK (RISK LEVEL 3 OF 4).  
 
* WHERE...THE WASATCH FRONT, GREAT SALT LAKE DESERT AND MOUNTAINS,  
AND TOOELE AND RUSH VALLEYS.  
 
* WHEN...FROM NOON TO 11 PM MDT THURSDAY.  
 
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES, ESPECIALLY IN  
THOSE WITHOUT EFFECTIVE COOLING AND/OR ADEQUATE HYDRATION.  
 
* ADDITIONAL DETAILS...THE MAJOR HEATRISK IS MAINLY DRIVEN BY ONE  
DAY OF VERY HOT DAYTIME TEMPERATURES ON THURSDAY, WITH  
TEMPERATURES THEN ON A COOLING TREND INTO THE WEEKEND.  
 
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.  
 
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE  
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING  
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND  
HEAT STROKE.  
 
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 MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT  
HTTPS://WEATHER.GOV/SALTLAKECITY.  
 
FOR INFORMATION ON POTENTIAL TRAVEL IMPACTS VISIT  
HTTP://UDOTTRAFFIC.UTAH.GOV  
 
WEBBER  
 
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