529  
FNUS75 KBOI 081212  
FWSBOI  
 
SPOT FORECAST FOR BOISE EXPERIMENTAL FOREST MACHINE PILES...BOISE NF  
NATIONAL WEATHER SERVICE BOISE ID  
512 AM MST MON DEC 8 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON DECEMBER 08.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (208)334-9060, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
..SOAKING RAINFALL TONIGHT THROUGH WEDNESDAY  
 
   
DISCUSSION  
 
AN ATMOSPHERIC RIVER WILL BRING A SOAKING RAIN TO THE BURN SITE  
STARTING TONIGHT AND CONTINUING THROUGH WEDNESDAY. RAINFALL WILL  
TOTAL 1 TO 1.5 INCHES BY WEDNESDAY AFTERNOON. A CHANCE OF SHOWERS  
LINGERS THROUGH WEDNESDAY NIGHT WITH DRIER CONDITIONS DEVELOPING  
THURSDAY AND CARRYING THROUGH THE WEEKEND. TEMPERATURES WILL WARM  
TO WELL ABOVE NORMAL AS SNOW LEVELS RISE ABOVE 8000 FEET ON  
WEDNESDAY.  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN IN  
THE AFTERNOON.  
MAX TEMPERATURE.....43 TO 48.  
MIN HUMIDITY........79 TO 84 PERCENT.  
CWR.................20 PERCENT.  
WIND - 20 FOOT......NORTHEAST AROUND 3 MPH.  
MIXING HEIGHT.......2000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
VENTILATION INDEX...200 FAIR.  
   
TONIGHT  
 
SKY/WEATHER.........RAIN. CHANCE OF RAIN 90 PERCENT.  
MIN TEMPERATURE.....34 TO 39.  
MAX HUMIDITY........95 TO 100 PERCENT.  
CWR.................80 PERCENT.  
WIND - 20 FOOT......EAST AROUND 3 MPH.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
VENTILATION INDEX...25 POOR.  
   
TUESDAY  
 
SKY/WEATHER.........RAIN. CHANCE OF RAIN 90 PERCENT.  
MAX TEMPERATURE.....43 TO 48.  
MIN HUMIDITY........89 TO 94 PERCENT.  
CWR.................90 PERCENT.  
WIND - 20 FOOT......SOUTHWEST AROUND 4 MPH.  
MIXING HEIGHT.......1500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
VENTILATION INDEX...150 POOR.  
 
 
FORECASTER...GROENERT  
REQUESTED BY...RANDY LAMB  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2527153.0/BOI  
.DELDT 12/08/25  
.FORMATTERVERSION 2.0.0  
.EMAIL RALPH.LAMB@USDA.GOV  
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