404  
FNUS75 KBOI 222351  
FWSBOI  
 
SPOT FORECAST FOR WAPITI WILDFIRE...USFS  
NATIONAL WEATHER SERVICE BOISE ID  
551 PM MDT TUE OCT 22 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON OCTOBER 23.  
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.  
   
..STRONG COLD FRONT WITH RAIN/SNOW ARRIVING WEDNESDAY EVENING
 
 
   
DISCUSSION
 
 
A STRONG COLD FRONT WILL MOVE OVER THE FIRE AROUND 9 PM MDT  
WEDNESDAY, BRINGING NW WINDS OF 15 TO 25, WITH GUSTS UP TO 40 MPH  
POSSIBLE ON THE HIGHER NORTHWEST-FACING PEAKS. SNOW LEVEL WILL  
FALL RAPIDLY BEHIND THE FRONT, FROM AROUND 8000 FT AGL INITIALLY  
TO AROUND 5000 FT AGL BY 6 AM MDT THURSDAY. WINDS BEFORE THE FRONT  
WILL INCREASE OUT OF THE SOUTHWEST WEDNESDAY AFTERNOON, 10 TO 16  
MPH WITH GUSTS TO 25 MPH. THURSDAY WILL BE COOL WITH MUCH WEAKER  
WINDS.  
   
WEDNESDAY
 
 
SKY/WEATHER.........CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 40 PERCENT.  
MAX TEMPERATURE.....44 TO 59.  
MIN HUMIDITY........29 TO 44 PERCENT.  
CWR.................10 PERCENT.  
LAL.................1.  
WIND - 20 FOOT......SOUTHWEST 10 TO 16 MPH WITH GUSTS TO AROUND 25  
MPH.  
MIXING HEIGHT.......2000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
HAINES INDEX........2 VERY LOW.  
VENTILATION INDEX...300 FAIR.  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........SNOW AND RAIN IN THE EVENING, THEN SNOW AND  
RAIN LIKELY OVERNIGHT. CHANCE OF PRECIPITATION  
NEAR 100 PERCENT. SNOW ACCUMULATION UP TO 3  
INCHES.  
MIN TEMPERATURE.....18 TO 33.  
MAX HUMIDITY........71 TO 99 PERCENT.  
CWR.................50 PERCENT.  
LAL.................1.  
WIND - 20 FOOT......WIND BECOMING WEST TO NORTHWEST 10 TO 16 MPH WITH GUSTS TO AROUND 30 MPH.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 5 MPH.  
HAINES INDEX........3 VERY LOW.  
VENTILATION INDEX...15 POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....38 TO 53.  
MIN HUMIDITY........25 TO 40 PERCENT.  
CWR.................0 PERCENT.  
LAL.................1.  
WIND - 20 FOOT......NORTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING TO  
THE WEST 3 TO 6 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
HAINES INDEX........4 LOW.  
VENTILATION INDEX...25 POOR.  
 

 
FORECASTER...PARKER  
REQUESTED BY...CHRIS COLT - PSC  
TYPE OF REQUEST...WILDFIRE  
.TAG 2424671.0/BOI  
.DELDT 10/23/24  
.FORMATTERVERSION 2.0.0  
.EMAIL CHRIS_COLT@FIRENET.GOV  
 
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