083  
FNUS75 KBYZ 270050  
FWSBYZ  
 
SPOT FORECAST FOR PONY CREEK...BUREAU OF LAND MANAGEMENT  
NATIONAL WEATHER SERVICE BILLINGS MT  
650 PM MDT TUE AUG 26 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1900 MDT ON AUGUST 26.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
WARM AND DRY CONDITIONS WITH EASTERLY WINDS ARE EXPECTED AT THE  
SITE INTO THURSDAY. THE CHANCE FOR PRECIPITATION IS VERY LOW (LESS  
THAN 15%), UNTIL THURSDAY AFTERNOON/EVENING. THE CHANCE FOR  
SHOWERS AND A FEW WEAK THUNDERSTORMS WILL BEGIN TO INCREASE  
THURSDAY EVENING. EXPECT SLOPE/VALLEY AND RIDGETOP WINDS TO BE  
ROUGHLY THE SAME. MOEDRATE MIXING IS FORECAST TOMORROW AND  
THURSDAY. OVERNIGHT RH RECOVERIES WILL BE MODERATE TONIGHT AND  
WEDNESDAY NIGHT. MATOS  
 
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.2 PERCENT.  
MIN TEMPERATURE.....56-60.  
MAX HUMIDITY........55-59 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......EAST WINDS 5 TO 9 MPH, GUSTS TO 15 MPH THRU  
THE EVENING.  
RIDGETOP...........EAST UP TO 10 MPH.  
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....EAST AROUND 12 MPH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.10 PERCENT.  
MAX TEMPERATURE.....82-86.  
MIN HUMIDITY........24-28 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 6 TO 10 MPH, GUSTS UP TO 20 MPH  
IN THE AFTERNOON.  
RIDGETOP...........SOUTHEAST AROUND 10 MPH, GUSTS TO 20 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 7000 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....EAST AROUND 14 MPH.  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.10 PERCENT.  
MIN TEMPERATURE.....60-64.  
MAX HUMIDITY........61-65 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 7 MPH, BECOMING SOUTH.  
RIDGETOP...........SOUTHEAST AROUND 10 MPH, BECOMING SOUTH.  
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.12 PERCENT.  
MAX TEMPERATURE.....77-81.  
MIN HUMIDITY........39-43 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 8 TO 12 MPH.  
RIDGETOP...........SOUTHEAST AROUND 12 MPH.  
MIXING HEIGHT.......INCREASING TO 6600 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHEAST AROUND 16 MPH.  
 

 
FORECASTER...MATOS  
REQUESTED BY...COLIN STURGILL  
TYPE OF REQUEST...WILDFIRE  
.TAG 2520779.0/BYZ  
.DELDT 08/26/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MTMCC@FIRENET.GOV,COLIN.STURGILL@MT.GOV  
 
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