408  
FLUS45 KSLC 181205  
HWOSLC  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
605 AM MDT FRI SEP 18 2020  
 
UTZ001>016-019>021-517-518-WYZ021-191200-  
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-  
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-  
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-  
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-  
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-  
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-  
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-  
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-  
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-  
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-  
605 AM MDT FRI SEP 18 2020  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF  
UTAH AND SOUTHWEST WYOMING.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
INCREASING SOUTHERLY WINDS AHEAD OF AN APPROACHING COLD FRONT THIS  
AFTERNOON ALONG WITH LOW HUMIDITY VALUES WILL BRING THE POTENTIAL  
FOR CRITICAL FIRE WEATHER CONDITIONS ACROSS MUCH OF THE OUTLOOK  
AREA THROUGH THIS EVENING.  
 
SHOWERS, ALONG WITH A FEW THUNDERSTORMS, WILL DEVELOP ACROSS THE  
NORTHERN THIRD OF THE OUTLOOK AREA LATER TONIGHT. COOLER AIR WILL  
FOLLOW THE COLD FRONT SOUTH INTO CENTRAL UTAH TONIGHT.  
   
DAYS TWO THROUGH SEVEN
 
SATURDAY THROUGH THURSDAY  
 
SHOWERS AND ISOLATED THUNDERSTORMS WILL PERSIST ACROSS NORTHERN  
UTAH AND SOUTHWEST WYOMING THROUGH EARLY SATURDAY AFTERNOON.  
SIGNIFICANTLY COOLER TEMPERATURES ARE EXPECTED ACROSS MUCH OF  
THE OUTLOOK AREA THROUGH THE WEEKEND.  
 
CRITICAL FIRE WEATHER CONDITIONS FROM GUSTY SOUTHWEST WINDS AND  
LOW HUMIDITY COULD DEVELOP AGAIN ACROSS SOUTHEAST UTAH SATURDAY  
AFTERNOON AND EVENING.  
 
A RETURN TO HIGH PRESSURE ALOFT ACROSS THE REGION WILL BRING  
ABOUT A GRADUAL WARMING TREND BEGINNING EARLY IN THE UPCOMING  
WEEK.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION MAY BE NEEDED. PLEASE RELAY ANY INFORMATION  
ABOUT OBSERVED SEVERE WEATHER TO THE NWS WHILE FOLLOWING ALL  
LOCAL, STATE, AND CDC GUIDELINES.  
 

 
 
FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...  
HTTP://WEATHER.GOV/SALTLAKECITY  
 
FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...  
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab UT Page
The Nexlab ID Page
The Nexlab WY Page Main Text Page