127  
FNUS75 KBOI 032145  
FWSBOI  
 
SPOT FORECAST FOR POORMAN RX...USFS BOISE NF  
NATIONAL WEATHER SERVICE BOISE ID  
345 PM MDT SUN MAY 3 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 2123 MDT ON MAY 03.  
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.  
   
..DRY AND WARM WITH GUSTY WINDS MONDAY NIGHT AND TUESDAY  
 
   
DISCUSSION  
 
ISOLATED SHOWERS DEVELOPING SOUTH THROUGH THIS EVENING ARE  
UNLIKELY (5% CHANCE) TO EFFECT THE BURN SITE. WARM AND DRY  
CONDITIONS WILL CONTINUE THROUGH MONDAY, WITH LITTLE CHANGE IN  
TEMPERATURES AND A SLIGHT INCREASE IN RELATIVE HUMIDITY. NORTHWEST  
WINDS ALOFT WILL COMTINUE THE TERRAIN INFLUENCED SURFACE WINDS  
INTO MONDAY. WILL SEE MORE CUMULUS AND SHOWER DEVELOPMENT MONDAY  
WITH THE BEST CHANCE (10 PERCENT) FOR SHOWERS AND THUNDERSTORMS AT  
THE BURN SITE TUESDAY AFTERNOON. NORTHERLY FLOW WILL STRENGTHEN  
MONDAY NIGHT INTO TUESDAY, INCREASING WINDS, ESPECIALLY ALONG  
RIDGELINES.  
   
REST OF THIS AFTERNOON  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MAX TEMPERATURE.....78 TO 83.  
MIN HUMIDITY........17 TO 23 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHWEST 4 TO 8 MPH. GUSTS UP TO 15 MPH  
THROUGH 7 PM.  
MIXING HEIGHT.......10500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.  
VENTILATION INDEX...525 GOOD.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....41 TO 46.  
MAX HUMIDITY........65 TO 70 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHWEST 3 TO 6 MPH BECOMING DOWNSLOPE LESS THAN  
3 MPH AFTER SUNSET.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
VENTILATION INDEX...10 POOR.  
   
MONDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....78 TO 83.  
MIN HUMIDITY........17 TO 22 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHWEST AROUND 7 MPH. GUSTS UP TO 15 MPH  
AFTER 3 PM.  
MIXING HEIGHT.......11000 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
VENTILATION INDEX...1100 EXCELLENT.  
 
 
FORECASTER...SMITH  
REQUESTED BY...HIGHTOWER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2611661.11/BOI  
.DELDT 05/03/26  
.FORMATTERVERSION 2.0.0  
.EMAIL SAMUEL.LEWIS1@USDA.GOV,WILLIAM.SANDERS2@USDA.GOV,CHRISTOPHER.HIGHTOWER@USDA.GOV,CHRISTOPHER.KNIGHT@USDA.GOV,DUSTIN.DOANE@USDA.GOV  
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