285  
FNUS75 KBYZ 260027  
FWSBYZ  
 
SPOT FORECAST FOR BLACK CANYON...BLM  
NATIONAL WEATHER SERVICE BILLINGS MT  
627 PM MDT FRI JUL 25 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1900 MDT ON JULY 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
A LINE OF THUNDERSTORMS WILL MOVE INTO THE FIRE VICINITY AROUND  
730PM IF IT HOLDS TOGETHER. WIND GUSTS TO 50 MPH WILL BE THE MAIN  
THREAT ALONG WITH LIGHTNING AND SMALL HAIL. THUNDERSTORMS WILL BE  
POSSIBLE THROUGH AROUND 10PM. MODERATE RH RECOVERIES EXPECTED WITH  
LIGHT AND VARIABLE WINDS ONCE THUNDERSTORM ACTIVITY DIMINISHES.  
CHAMBERS  
   
REST OF TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. SOME  
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE  
EVENING.  
CWR.................5 PERCENT.  
CHANCE OF LIGHTNING.18 PERCENT.  
MIN TEMPERATURE.....62-66.  
MAX HUMIDITY........63-67 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......VARIABLE WINDS UP TO 6 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
EVENING.  
MIXING HEIGHT.......3700 FT AGL EARLY IN THE EVENING DECREASING TO  
100 FT AGL OVERNIGHT.  
 
 
FORECASTER...CHAMBERS  
REQUESTED BY...MICHELLE DAUENHAUER  
TYPE OF REQUEST...WILDFIRE  
.TAG 2518605.0/BYZ  
.DELDT 07/25/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MTMCC@FIRENET.GOV  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MT Page
The Nexlab WY Page
Main Text Page