615  
FNUS75 KSLC 301531  
FWSSLC  
 
SPOT FORECAST FOR MUD SPRINGS RX...USFS  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
931 AM MDT WED SEP 30 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 01.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
FAVORABLE BURNING CONDITIONS LOOK TO DEVELOP SATURDAY  
THROUGH NEXT MONDAY WITH CLEARING ABOVE 500 AND WINDS DURING THE  
DAY GENERALLY FROM A SOUTHEASTERLY DIRECTION. THROUGH SATURDAY  
HOWEVER, HIGH PRESSURE BUILDING IN FROM THE NORTHWEST WILL BRING  
NORTH TO NORTHWESTERLY WINDS THROUGH THURSDAY, AND DECREASING  
CLEARING INDEX TRENDS WHICH WILL SHIFT BELOW 500 FOR FRIDAY. ON  
MONDAY THERE IS A 20 PERCENT CHANCE OF SHOWERS FOCUSED IN THE  
AFTERNOON EVENING HOURS AS A WEAK LOW PRESSURE MOVES THROUGH, AND  
WILL LIKELY SEE WINDS BECOMING NORTHERLY THEREAFTER AGAIN FOR  
TUESDAY.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....73-75.  
MIN HUMIDITY........25-27 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 3 TO 9 MPH.  
MIXING HEIGHT.......6800 FT AGL (40-50TH PERCENTILE).  
TRANSPORT WINDS.....NORTH AROUND 12 MPH.  
CLEARING INDEX......660.  
   
THURSDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MIN TEMPERATURE.....AROUND 40.  
MAX HUMIDITY........77-79 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 2 TO 5 MPH BECOMING NORTH 2 TO  
4 MPH AFTER 3 AM.  
MIXING HEIGHT.......600 FT AGL.  
TRANSPORT WINDS.....NORTH 6 TO 8 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....73-75.  
MIN HUMIDITY........28-30 PERCENT.  
WIND (20 FT)........NORTH WINDS 1 TO 3 MPH BECOMING SOUTH 5 TO 8  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......5600 FT AGL (30-40TH PERCENTILE).  
TRANSPORT WINDS.....NORTH AROUND 6 MPH BECOMING SOUTH AROUND 9 MPH  
IN THE AFTERNOON.  
CLEARING INDEX......440.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S. WEST WINDS  
AROUND 2 MPH.    
SUNDAY  
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS AROUND 4 MPH.    
MONDAY  
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS  
AROUND 40. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 3 MPH.    
TUESDAY  
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND 70.    
WEDNESDAY  
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.  
 
FORECASTER...MERRILL  
REQUESTED BY...JEREMY GERBER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2622782.0/SLC  
.DELDT 09/30/26  
.FORMATTERVERSION 2.0.0  
.EMAIL DEREK.BARTON@USDA.GOV,TREVOR.FRANDSEN@USDA.GOV,JEREMY.GERBER@USDA.GOV  
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