623  
FNUS75 KBOI 061643  
FWSBOI  
 
SPOT FORECAST FOR TUMBLEWEED_RX...USFWS  
NATIONAL WEATHER SERVICE BOISE ID  
943 AM MST TUE JAN 6 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON JANUARY 06.  
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 TODAY WITH A COLD FRONT MOVING THROUGH AREA TONIGHT  
 
   
DISCUSSION  
 
INCREASING CLOUDS TODAY AS A COLD FRONT MOVES INTO THE AREA ON WEDNESDAY  
MORNING. THE FRONT WILL BRING A 50 PERCENT CHANCE OF PRECIPITATION TO  
THE AREA ON WEDNESDAY MORNING BEFORE PARTIAL CLEARING WEDNESDAY  
AFTERNOON. BREEZY NORTHWEST WINDS FOLLOW THE FRONT. SCATTERED  
RAIN AND SNOW SHOWERS WEDNESDAY AFTERNOON. LITTLE TO NO SNOW  
ACCUMULATION EXPECTED.  
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY.  
MAX TEMPERATURE.....50 TO 55.  
MIN HUMIDITY........49 TO 54 PERCENT.  
CWR.................10 PERCENT.  
WIND - 20 FOOT......EAST AROUND 6 MPH. SHIFTING BRIEFLY TO WEST  
5 TO 8 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
VENTILATION INDEX...300 FAIR.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.  
MIN TEMPERATURE.....33 TO 38.  
MAX HUMIDITY........82 TO 90 PERCENT.  
CWR.................20 PERCENT.  
WIND - 20 FOOT......SOUTHEAST AROUND 6 MPH.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
VENTILATION INDEX...10 POOR.  
   
WEDNESDAY  
 
SKY/WEATHER.........CLOUDY IN THE MORNING THEN BECOMING PARTLY  
SUNNY IN THE AFTERNOON. A 50 PERCENT CHANCE OF  
RAIN. SCATTERED RAIN AND SNOW SHOWERS DURING  
THE LATE AFTERNOON.  
MAX TEMPERATURE.....46 TO 51.  
MIN HUMIDITY........52 TO 57 PERCENT.  
CWR.................20 PERCENT.  
WIND - 20 FOOT......NORTHWEST 6 TO 9 MPH WITH GUSTS TO AROUND 16  
MPH.  
MIXING HEIGHT.......5500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
VENTILATION INDEX...1100 EXCELLENT.  
 
 
FORECASTER...ANDERSON  
REQUESTED BY...BRYSON GUNDLACH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2528417.0/BOI  
.DELDT 01/06/26  
.FORMATTERVERSION 2.0.0  
.EMAIL BRYSON_GUNDLACH@FWS.GOV  
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