222  
FNUS75 KSLC 200358  
FWSSLC  
 
SPOT FORECAST FOR UNIFIED HMGP...UFA  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
958 PM MDT SUN OCT 19 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
HIGH PRESSURE WILL BUILD INTO THE REGION BEHIND SUNDAY'S  
COLD FRONT, BRINGING MORE STABLE CONDITIONS TO THE BURN SITE.  
WITH LIMITED MIXING, THE CLEARING INDEX WILL REMAIN POOR, PEAKING  
AT AROUND 200-250. HIGH PRESSURE WILL SHIFT EASTWARD TUESDAY,  
THOUGH MIXING WILL BE EVEN MORE LIMITED, WITH CLEARING WELL INTO  
THE POOR RANGE, STRUGGLING TO EXCEED 50-100.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER) THEN  
BECOMING MOSTLY SUNNY (10-20 PERCENT CLOUD  
COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....AROUND 40.  
MIN HUMIDITY........39-41 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5-10 MPH BECOMING 10-20 MPH AFTER 1100.  
MIXING HEIGHT.......2000 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
TRANSPORT WINDS.....NORTHWEST AROUND 18 MPH.  
CLEARING INDEX......220.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....27-29.  
MAX HUMIDITY........39-41 PERCENT.  
WIND (20 FT)........WEST WINDS 5-10 MPH BECOMING SOUTHWEST  
OVERNIGHT.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 6 MPH BECOMING WEST AROUND 5  
MPH OVERNIGHT.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....AROUND 50.  
MIN HUMIDITY........28-30 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5-10 MPH.  
MIXING HEIGHT.......2000 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
TRANSPORT WINDS.....SOUTH AROUND 6 MPH.  
CLEARING INDEX......80.  
 

 
FORECASTER...KRUSE  
REQUESTED BY...ROB WHITTEN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2523931.0/SLC  
.DELDT 10/19/25  
.FORMATTERVERSION 2.0.0  
.EMAIL RWHITTEN@UNIFIEDFIREUT.GOV  
 
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