270  
FNUS75 KSLC 152212  
FWSSLC  
 
SPOT FORECAST FOR ROCKY CANYON...NUIFC  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
412 PM MDT SAT AUG 15 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1630 MDT ON AUGUST 15.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
DRIER AIR HAS MOVED INTO THE REGION ALONG WITH LESS LIFT  
THANKS TO THE LOW PRESSURE SHIFTING AWAY FROM OUR AREA. A BRIEF ISOLATED  
STORM CAN'T BE RULED OUT (10% CHANCE) THIS AFTERNOON. THESE CAN STILL  
PRODUCE GUSTY AND ERRATIC WINDS ALONG WITH FREQUENT LIGHTNING.  
 
THE MOISTURE DOESN'T FULLY DEPART OUR AREA OVER THE NEXT SEVERAL DAYS SO  
THAT WILL KEEP A SMALL (~10%) CHANCE OF STORMS EACH AFTERNOON ALONG WITH  
RELATIVE HUMIDITY ABOVE CRITICAL CONDITIONS. WINDS WILL REMAIN LIGHT AND  
DIURNALLY DRIVEN AS WELL. MOISTURE DOESN'T INCREASE OVER THE REGION  
UNTIL THE END OF THE UPCOMING WEEK.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).  
CWR.................5 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF LIGHTNING.5 PERCENT.  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........27-29 PERCENT.  
WIND (20 FT)........WEST WINDS 6 TO 8 MPH.  
MIXING HEIGHT.......9400 FT AGL (70-80TH PERCENTILE).  
TRANSPORT WINDS.....WEST AROUND 12 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.1 PERCENT.  
MIN TEMPERATURE.....46-49.  
MAX HUMIDITY........72-75 PERCENT.  
WIND (20 FT)........LIGHT 2-5 MPH UPSLOPE WINDS TRANSITIONING TO LIGHT DRAINAGE  
2-5 MPH DRAINAGE WINDS OVERNIGHT.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH BECOMING SOUTHEAST AROUND 7  
MPH OVERNIGHT.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).  
CWR.................5 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF LIGHTNING.5 PERCENT.  
MAX TEMPERATURE.....81-84.  
MIN HUMIDITY........24-26 PERCENT.  
WIND (20 FT)........LIGHT DRAINAGE WINDS BECOMING WEST/SOUTHWEST 3 TO 7  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......10600 FT AGL (70-80TH PERCENTILE).  
TRANSPORT WINDS.....SOUTHEAST AROUND 7 MPH BECOMING SOUTHWEST  
AROUND 10 MPH IN THE AFTERNOON.  
 

 
FORECASTER...MAHAN  
REQUESTED BY...MORGAN MENDENHALL  
TYPE OF REQUEST...WILDFIRE  
.TAG 2619568.4/SLC  
.DELDT 08/15/26  
.FORMATTERVERSION 2.0.0  
.EMAIL MORGANMENDENHALL@UTAH.GOV  
 
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