689  
WWUS75 KSLC 101606  
NPWSLC  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
1006 AM MDT FRI JUL 10 2026  
 
WYZ021-110715-  
/O.UPG.KSLC.HT.Y.0002.260712T1800Z-260714T0300Z/  
/O.EXB.KSLC.XH.W.0001.260711T1800Z-260714T0300Z/  
SOUTHWEST WYOMING-  
INCLUDING THE FOLLOWING LOCATIONS - EVANSTON AND LYMAN  
1006 AM MDT FRI JUL 10 2026  
 
...EXTREME HEAT WARNING IN EFFECT FROM NOON SATURDAY TO 9 PM MDT  
MONDAY...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES UP TO 98  
DEGREES EXPECTED.  
 
* WHERE...SOUTHWEST WYOMING.  
 
* WHEN...FROM NOON SATURDAY TO 9 PM MDT MONDAY.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...THERE IS HIGH CONFIDENCE THAT TEMPERATURES  
WILL WARM TO VALUES CHALLENGING DAILY, MONTHLY, OR EVEN ALL-TIME  
HIGH TEMPERATURE RECORDS SATURDAY THROUGH MONDAY.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
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.  
 

 
 

 
 
UTZ101>108-114-116-118>121-110715-  
/O.CON.KSLC.XH.W.0001.260711T1800Z-260714T1200Z/  
GREAT SALT LAKE DESERT AND MOUNTAINS-TOOELE AND RUSH VALLEYS-  
EASTERN BOX ELDER COUNTY-NORTHERN WASATCH FRONT-SALT LAKE VALLEY-  
UTAH VALLEY-CACHE VALLEY/UTAH PORTION-WASATCH BACK-WESTERN UINTA  
BASIN-EASTERN JUAB/MILLARD COUNTIES-SANPETE VALLEY-SEVIER VALLEY-  
CASTLE COUNTRY-SAN RAFAEL SWELL-  
INCLUDING THE FOLLOWING LOCATIONS - WEST JORDAN, PARK CITY,  
ROOSEVELT, EMERY, SALINA, GOBLIN VALLEY, LOGAN, SMITHFIELD, HEBER  
CITY, FILLMORE, SALT LAKE CITY, CASTLE DALE, SANDY, PARK VALLEY,  
HUNTSVILLE, PRICE, VERNON, DUCHESNE, RICHFIELD, GRANTSVILLE,  
EPHRAIM, MANTI, MT PLEASANT, PAYSON, BOUNTIFUL, TOOELE, GREEN  
RIVER, PROVO, BRIGHAM CITY, WENDOVER, LEHI, SCIPIO, NEPHI, OGDEN,  
SNOWVILLE, AND DUGWAY  
1006 AM MDT FRI JUL 10 2026  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON SATURDAY TO 6 AM  
MDT TUESDAY...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES UP TO 107  
POSSIBLE FOR THE VALLEYS OF NORTHERN UTAH, INCLUDING THE WASATCH  
FRONT AND CACHE VALLEY. HIGHS AROUND 100 POSSIBLE FOR THE MOUNTAIN  
VALLEYS OF NORTHERN AND CENTRAL UTAH, INCLUDING THE WASATCH BACK,  
ALONG CASTLE COUNTRY, THE UINTA BASIN, AND THE SAN RAFAEL SWELL.  
 
* WHERE...PORTIONS OF CENTRAL AND NORTHERN UTAH.  
 
* WHEN...FROM NOON SATURDAY TO 6 AM MDT TUESDAY.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...THERE IS HIGH CONFIDENCE THAT TEMPERATURES  
WILL WARM TO VALUES CHALLENGING DAILY, MONTHLY, OR EVEN ALL-TIME  
HIGH TEMPERATURE RECORDS SATURDAY THROUGH MONDAY. OVERNIGHT LOWS  
IN THE LOWER TO MID 70S FOR MANY VALLEY LOCATIONS WILL PROVIDE  
LITTLE IN THE WAY OF OVERNIGHT RELIEF.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
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.  
 

 
 

 
 
UTZ115-122-128>131-110715-  
/O.CON.KSLC.XH.W.0001.260711T1800Z-260713T1200Z/  
WESTERN MILLARD AND JUAB COUNTIES-SOUTHWEST UTAH-SOUTH CENTRAL  
UTAH-CAPITOL REEF NATIONAL PARK AND VICINITY-WESTERN CANYONLANDS-  
GLEN CANYON RECREATION AREA/LAKE POWELL-  
INCLUDING THE FOLLOWING LOCATIONS - HANKSVILLE, DELTA, BULLFROG,  
KANAB, MILFORD, LITTLE SAHARA, BIG WATER, ESCALANTE, BEAVER,  
TORREY, LOA, AND CEDAR CITY  
1006 AM MDT FRI JUL 10 2026  
 
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON SATURDAY TO 6 AM  
MDT MONDAY...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS EXPECTED, WITH HIGHS AROUND 100  
POSSIBLE FOR MOST CENTRAL AND SOUTHERN UTAH VALLEYS AND UP TO 110  
FOR LOWER WASHINGTON COUNTY, ZION CANYON, AND THE GLEN CANYON  
RECREATION AREA.  
 
* WHERE...WESTERN MILLARD AND JUAB COUNTIES, CAPITOL REEF NATIONAL  
PARK AND VICINITY, GLEN CANYON RECREATION AREA/LAKE POWELL, SOUTH  
CENTRAL UTAH, WESTERN CANYONLANDS, AND SOUTHWEST UTAH.  
 
* WHEN...FROM NOON SATURDAY TO 6 AM MDT MONDAY.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT EVENTS.  
 
* ADDITIONAL DETAILS...THERE IS HIGH CONFIDENCE THAT TEMPERATURES  
WILL WARM TO VALUES CHALLENGING DAILY AND MONTHLY HIGH TEMPERATURE  
RECORDS SATURDAY AND SUNDAY. OVERNIGHT LOWS IN THE LOWER TO MID  
70S FOR MANY VALLEY LOCATIONS, EXCEPT LOW 80S FOR LOWER WASHINGTON  
COUNTY, WILL PROVIDE LITTLE IN THE WAY OF OVERNIGHT RELIEF.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
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  
 
BW  
 
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