455  
FNUS75 KSLC 241924  
FWSSLC  
 
SPOT FORECAST FOR COTTONWOOD 07242026...USFS  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
124 PM MDT FRI JUL 24 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON JULY 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
HIGH PRESSURE WILL REMAIN IN PLACE OVER THE NEXT  
SEVERAL DAYS, BRINGING HOT TEMPERATURES AND LIGHT AND TERRAIN  
DRIVEN WINDS. DRIER AIR WILL BE MOVING IN FROM THE WEST OVER THE  
WEEKEND, BRINGING DECREASING RELATIVE HUMIDITY VALUES AND A  
DECREASED THREAT OF SHOWERS AND THUNDERSTORMS. THERE IS A 10  
PERCENT CHANCE BOTH SATURDAY AND SUNDAY OF A STORM IMPACTING THE  
SITE. MAIN THREATS IF THIS WERE TO HAPPEN WOULD BE GUSTY AND  
ERRATIC WINDS AND LIGHTNING. MOISTURE WILL MAKE ITS WAY BACK INTO  
THE AREA BEGINNING TUESDAY, BRINGING AN INCREASED THREAT OF  
SHOWERS AND THUNDERSTORMS.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER) THEN  
BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD  
COVER). ISOLATED SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON.  
CWR.................0 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF LIGHTNING.10 PERCENT.  
MAX TEMPERATURE.....82-86.  
MIN HUMIDITY........30-34 PERCENT.  
WIND (20 FT)........UPSLOPE/UPVALLEY WINDS 3-7 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
AFTERNOON.  
MIXING HEIGHT.......9600 FT AGL (80-90TH PERCENTILE).  
TRANSPORT WINDS.....SOUTHWEST WINDS 8-12 MPH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....62-66.  
MAX HUMIDITY........48-52 PERCENT.  
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS 3-7 MPH.  
MIXING HEIGHT.......600 FT AGL.  
TRANSPORT WINDS.....WEST WINDS 8-12 MPH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER) THEN  
BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD  
COVER). ISOLATED SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON.  
CWR.................0 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF LIGHTNING.10 PERCENT.  
MAX TEMPERATURE.....82-86.  
MIN HUMIDITY........32-36 PERCENT.  
WIND (20 FT)........UPSLOPE/UPVALLEY WINDS 3-7 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
AFTERNOON.  
MIXING HEIGHT.......11400 FT AGL (90-95TH PERCENTILE).  
TRANSPORT WINDS.....SOUTHWEST 7 TO 9 MPH.  
 

 
FORECASTER...TRAPHAGAN  
REQUESTED BY...BRIAN MONROE  
TYPE OF REQUEST...WILDFIRE  
.TAG 2618131.0/SLC  
.DELDT 07/24/26  
.FORMATTERVERSION 2.0.0  
.EMAIL BRIAN.MONROE@USDA.GOV,BRIAN_WATTS@FIRENET.GOV  
 
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