703  
FNUS75 KSLC 111224  
FWSSLC  
 
SPOT FORECAST FOR NZ TIMBER PILES REEDER...USFS  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
524 AM MST THU DEC 11 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 MST ON DECEMBER 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
HIGH PRESSURE GRADUALLY BUILDING IN FROM THE WEST  
WILL MAINTAIN DRY AND STABLE CONDITIONS FOR THE BURN SITE INTO THE  
EARLY PART OF NEXT WEEK. EXPECT POOR MIXING CONDITIONS THROUGHOUT  
THIS TIMEFRAME. WINDS WILL CONTINUE OUT OF A WEST TO NORTHWESTERLY  
DIRECTION, GRADUALLY TRENDING WEAKER OVER THE NEXT COUPLE OF  
DAYS. A PATTERN CHANGE BY THE MIDDLE OF NEXT WEEK COULD  
POTENTIALLY BRING A PERIOD OF IMPROVED MIXING. PRECIPITATION  
CHANCES ARE ALSO INCREASING FOR NORTHERN UTAH DURING THE MIDDLE TO  
LATTER HALF OF NEXT WEEK, BUT AT THIS TIME, THE BURN SITE ITSELF  
IS ONLY EXPECTED TO SEE A SLIGHT CHANCE OF MEASURABLE  
PRECIPITATION.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....39-42.  
MIN HUMIDITY........48-51 PERCENT.  
WIND (20 FT)........WEST-NORTHWEST WINDS 8-12 MPH WITH GUSTS TO  
AROUND 20 MPH.  
MIXING HEIGHT.......800 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
TRANSPORT WINDS.....NORTHWEST 16 TO 20 MPH.  
CLEARING INDEX......140.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....25-29.  
MAX HUMIDITY........53-56 PERCENT.  
WIND (20 FT)........WEST-NORTHWEST WINDS 5-10 MPH WITH GUSTS TO  
AROUND 18 MPH.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 13 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....39-42.  
MIN HUMIDITY........37-40 PERCENT.  
WIND (20 FT)........WEST-NORTHWEST WINDS 4-8 MPH WITH GUSTS TO  
AROUND 18 MPH.  
MIXING HEIGHT.......300 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
TRANSPORT WINDS.....NORTHWEST AROUND 13 MPH.  
CLEARING INDEX......70.  
 

 
FORECASTER...CHENG  
REQUESTED BY...KYLER HATCH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2527202.2/SLC  
.DELDT 12/11/25  
.FORMATTERVERSION 2.0.0  
.EMAIL KYLER.HATCH@USDA.GOV,RINALD.SORENSON@USDA.GOV  
 
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