334  
FNUS75 KBOI 310942  
FWSBOI  
 
SPOT FORECAST FOR TUMBLEWEED RX...BLM  
NATIONAL WEATHER SERVICE BOISE ID  
342 AM MDT MON MAR 31 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON MARCH 31.  
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 WITH SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS TODAY  
 
   
DISCUSSION  
 
AN ACTIVE WEATHER PATTERN CONTINUES TODAY WITH PERIODS OF SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. BREEZY CONDITIONS WILL CONTINUE AND  
WILL BE OCCASIONALLY ENHANCED BY SHOWERS/STORMS. BEST CHANCE FOR  
THUNDERSTORMS LOOKS TO BE BETWEEN 11 AM AND 6 PM MDT. CONDITIONS WILL  
BE MOSTLY DRY TONIGHT, THEN A CHANCE OF SHOWERS RETURNS TUESDAY INTO  
WEDNESDAY. FRIDAY INTO THE WEEKEND WILL BE DRY AND GET MUCH WARMER.  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE MORNING. CHANCE  
OF PRECIPITATION 70 PERCENT.  
MAX TEMPERATURE.....49 TO 54.  
MIN HUMIDITY........56 TO 61 PERCENT.  
CWR.................50 PERCENT.  
WIND - 20 FOOT......SOUTH AROUND 6 MPH IN THE MORNING INCREASING TO  
WEST 13 TO 19 MPH WITH GUSTS TO AROUND 28 MPH  
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS IN THE MORNING.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
VENTILATION INDEX...1625 EXCELLENT.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS, ISOLATED  
THUNDERSTORMS AND SCATTERED SNOW SHOWERS IN THE  
EVENING, THEN ISOLATED RAIN AND SNOW SHOWERS  
OVERNIGHT. CHANCE OF PRECIPITATION 30 PERCENT.  
MIN TEMPERATURE.....28 TO 33.  
MAX HUMIDITY........83 TO 88 PERCENT.  
CWR.................20 PERCENT.  
WIND - 20 FOOT......WEST 7 TO 12 MPH WITH GUSTS TO AROUND 22 MPH.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS IN THE EVENING.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
VENTILATION INDEX...45 POOR.  
   
TUESDAY  
 
SKY/WEATHER.........PARTLY SUNNY. A 30 PERCENT CHANCE OF RAIN AND  
SNOW SHOWERS IN THE AFTERNOON.  
MAX TEMPERATURE.....45 TO 50.  
MIN HUMIDITY........43 TO 48 PERCENT.  
CWR.................10 PERCENT.  
WIND - 20 FOOT......WEST AROUND 12 MPH WITH GUSTS TO AROUND 22 MPH.  
MIXING HEIGHT.......7500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
VENTILATION INDEX...1125 EXCELLENT.  
 
 
FORECASTER...SMITH  
REQUESTED BY...MATT GOODRICH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2508438.0/BOI  
.DELDT 03/31/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MGOODRICH@BLM.GOV  
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