046  
FNUS75 KBYZ 120201  
FWSBYZ  
 
SPOT FORECAST FOR HWY 451 INC 506...MT-BDC  
NATIONAL WEATHER SERVICE BILLINGS MT  
801 PM MDT FRI JUL 11 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 2000 MDT ON JULY 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH  
THIS FORECAST.  
   
DISCUSSION
 
 
LOOK FOR MOSTLY CLEAR SKIES, LIGHT WINDS AND A GOOD RH RECOVERY  
TONIGHT. NORTH WINDS THIS EVENING WILL SHIFT TO SOUTHERLY  
(DOWNVALLEY) AFTER SUNSET. SATURDAY WILL BE WARMER AND DRIER WITH  
AFTERNOON WINDS BECOMING NORTHWEST AND WELL-MIXED, WITH GUSTS  
AROUND 18 MPH. RHS TOMORROW MAY DROP AS LOW AS THE UPPER TEENS.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....45-49.  
MAX HUMIDITY........74-78 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTH 3-6 MPH SHIFTING TO THE SOUTH BY  
MIDNIGHT.  
RIDGETOP...........NORTH 5 MPH SHIFTING TO THE SOUTH 5-10 MPH  
OVERNIGHT.  
MIXING HEIGHT.......DECREASING TO 300 FT AGL.  
TRANSPORT WINDS.....NORTH 5 MPH BECOMING SOUTH 7 MPH.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....88-92.  
MIN HUMIDITY........16-20 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTH 5-8 MPH IN THE MORNING, SHIFTING TO THE  
NORTHWEST 6-12 MPH WITH GUSTS TO 18 MPH IN THE  
AFTERNOON.  
RIDGETOP...........SOUTH 5-10 MPH BECOMING NORTHWEST 12-18 MPH.  
MIXING HEIGHT.......INCREASING TO 9000 FT AGL.  
TRANSPORT WINDS.....SOUTH 8 MPH BECOMING WEST TO NORTHWEST 13 MPH.  
 

 
FORECASTER...LESTER  
REQUESTED BY...INCIDENT COMMANDER  
TYPE OF REQUEST...WILDFIRE  
.TAG 2517848.0/BYZ  
.DELDT 07/11/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MTBDC@FIRENET.GOV  
 
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