816  
FNUS75 KBOI 091536  
FWSBOI  
 
SPOT FORECAST FOR TUMBLEWEED_RX...USFWS  
NATIONAL WEATHER SERVICE BOISE ID  
836 AM MST MON FEB 9 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON FEBRUARY 09.  
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 COOLER TODAY AND TUESDAY  
 
   
DISCUSSION  
 
A COLD FRONT HAS MOVED THROUGH THE AREA EARLIER THIS MORNING AND  
BROUGHT BREEZY CONDITIONS. THE NEXT SYSTEM WILL APPROACH FROM THE  
SOUTHWEST ON TUESDAY AND BRING CLOUDY SKIES AND BREEZY EAST-SOUTHEAST  
WINDS. SHOWERS POSSIBLE EARLY WEDNESDAY MORNING AS A SYSTEM PASSES BY  
TO THE SOUTH.  
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY TO MOSTLY SUNNY.  
MAX TEMPERATURE.....48 TO 53.  
MIN HUMIDITY........41 TO 46 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 18  
MPH.  
MIXING HEIGHT.......5500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
VENTILATION INDEX...825 EXCELLENT.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY OVERNIGHT.  
MIN TEMPERATURE.....25 TO 30.  
MAX HUMIDITY........86 TO 91 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHEAST 3 TO 8 MPH. GUSTS UP TO 14 MPH IN THE  
EVENING.  
MIXING HEIGHT.......100 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 5 MPH.  
VENTILATION INDEX...5 POOR.  
   
TUESDAY  
 
SKY/WEATHER.........CLOUDY.  
MAX TEMPERATURE.....49 TO 54.  
MIN HUMIDITY........44 TO 49 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......EAST 6 TO 12 MPH WITH GUSTS TO AROUND 18 MPH IN  
THE MORNING INCREASING TO AROUND 16 MPH WITH  
GUSTS TO AROUND 24 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......4000 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 20 MPH.  
VENTILATION INDEX...800 EXCELLENT.  
 
 
FORECASTER...ANDERSON  
REQUESTED BY...BRYSON GUNDLACH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2602159.0/BOI  
.DELDT 02/09/26  
.FORMATTERVERSION 2.0.0  
.EMAIL BRYSON_GUNDLACH@FWS.GOV  
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