927  
FLUS45 KSLC 210030  
HWOSLC  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
530 PM MST TUE FEB 20 2018  
 
UTZ001>016-019>021-517-518-WYZ021-211300-  
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-  
530 PM MST TUE FEB 20 2018  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF  
UTAH AND SOUTHWEST WYOMING.  
   
DAY ONE
 
TONIGHT  
 
LINGERING SNOW SHOWERS, MAINLY OVER OR NEAR THE HIGHER TERRAIN,  
WILL DISSIPATE EARLY THIS EVENING.  
 
THE COLDEST AIR MASS OF THE WINTER SEASON WILL BRING LOW  
TEMPERATURES DOWN TO THE SINGLE DIGITS AND TEENS IN MOST VALLEYS  
TONIGHT. A FEW OF THE NORMALLY COLDER HIGHER VALLEYS WILL SEE  
READINGS DROP BELOW ZERO LATE TONIGHT. MOUNTAINS LOCATIONS WILL BE  
EXCEPTIONALLY COLD, WITH LOWS TONIGHT WELL BELOW ZERO IN MANY  
LOCATIONS.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY  
 
A WEAK WEATHER DISTURBANCE WILL MOVE EAST ACROSS THE UTAH  
WEDNESDAY NIGHT THROUGH EARLY THURSDAY. A SECOND SOMEWHAT STRONGER  
SYSTEM WILL IMPACT MUCH OF THE SOUTHERN AND CENTRAL PORTIONS OF  
THE OUTLOOK AREA THURSDAY NIGHT INTO FRIDAY.  
 
   
SPOTTER INFORMATION STATEMENT
 
 
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER  
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.  
 

 
 
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  
 
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