779  
FNUS75 KBOI 051129  
FWSBOI  
 
SPOT FORECAST FOR WARM SPRINGS RX...USFS  
NATIONAL WEATHER SERVICE BOISE ID  
529 AM MDT TUE MAY 5 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MAY 05.  
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.  
   
..BREEZY AND DRY
 
   
..A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON
 
 
   
DISCUSSION
 
 
NORTHERLY FLOW WILL BRING BREEZY CONDITIONS TO THE REGION  
TODAY. DAYTIME HEATING AND INSTABILITY WILL SUPPORT  
CUMULUS BUILDUPS THIS AFTERNOON WITH A 20% CHANCE OF A  
THUNDERSTORM NEAR THE BURN SITE TODAY. HIGH PRESSURE  
WILL BUILD OVER THE AREA WEDNESDAY KEEPING WARM AND DRY WEATHER  
IN PLACE THROUGH THE END OF THE WEEK.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY IN THE MORNING, BECOMING PARTLY CLOUDY  
IN THE AFTERNOON. A 20% CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON WHICH COULD PRODUCE GUSTY WINDS.  
MAX TEMPERATURE.....71 TO 76.  
MIN HUMIDITY........24 TO 29 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHWEST 8 TO 14 MPH. GUSTS UP TO 22 MPH IN  
THE AFTERNOON. GUSTY AND ERRATIC WINDS POSSIBLE  
FROM THUNDERSTORMS IN THE AFTERNOON.  
MIXING HEIGHT.......9500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 20 MPH.  
VENTILATION INDEX...1900 EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....37 TO 42.  
MAX HUMIDITY........61 TO 67 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTH 8 TO 14 MPH. GUSTS UP TO 24 MPH IN THE  
EVENING. BECOMING NORTH 3 TO 6 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
VENTILATION INDEX...45 POOR.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....68 TO 73.  
MIN HUMIDITY........23 TO 28 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO  
THE WEST WITH GUSTS TO AROUND 14 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
VENTILATION INDEX...650 GOOD.  
 

 
FORECASTER...ANDERSON  
REQUESTED BY...BROGAN ALEXANDER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2612712.0/BOI  
.DELDT 05/05/26  
.FORMATTERVERSION 2.0.0  
.EMAIL B1ALEXANDER@BLM.GOV  
 
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