413  
FNUS75 KBYZ 032241  
FWSBYZ  
 
SPOT FORECAST FOR CUSTER AREA FIRES...MILES CITY DISPATCH  
NATIONAL WEATHER SERVICE BILLINGS MT  
441 PM MDT THU JUL 3 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1700 MDT ON JULY 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
THIS FORECAST COVERS AN AREA THAT INCLUDES SEVERAL WILDFIRES.  
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH  
THIS FORECAST.  
   
DISCUSSION
 
 
THERE ARE CURRENTLY NO THUNDERSTORMS IN THE AREA, BUT WE EXPECT  
SHOWER AND THUNDERSTORM POTENTIAL TO INCREASE THIS EVENING,  
BEGINNING AROUND 8PM. WE DO NOT ANTICIPATE SEVERE STORMS NEAR THE  
FIRES, BUT ERRATIC WIND GUSTS ARE POSSIBLE AND THIS WILL BE  
MONITORED. OUTSIDE OF ANY STRONGER THUNDERSTORM GUSTS, WINDS  
SHOULD STAY AT 15 MPH OR LESS. THERE IS A SLIGHT CHANCE OF SHOWERS  
EARLY TOMORROW, THEN A RISK OF THUNDERSTORMS ARRIVES AGAIN BY  
LATE IN THE DAY.  
   
REST OF THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....92-96.  
MIN HUMIDITY........20-24 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST 5-10 MPH WITH GUSTS TO 15 MPH.  
RIDGETOP...........WEST 10-15 MPH.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST 10 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS AFTER 8PM. ERRATIC WIND GUSTS TO  
40 MPH POSSIBLE NEAR STORMS THIS EVENING.  
CWR.................15 PERCENT.  
CHANCE OF LIGHTNING.20 PERCENT.  
MIN TEMPERATURE.....65-70.  
MAX HUMIDITY........65-75 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST 6-12 MPH.  
RIDGETOP...........WEST 10-15 MPH.  
MIXING HEIGHT.......DECREASING TO 700 FT AGL.  
TRANSPORT WINDS.....WEST 10 MPH.  
   
INDEPENDENCE DAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE LATE AFTERNOON. ERRATIC WIND GUSTS POSSIBLE  
NEAR STORMS.  
CWR.................10 PERCENT.  
CHANCE OF LIGHTNING.10 PERCENT.  
MAX TEMPERATURE.....81-85.  
MIN HUMIDITY........40-44 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST 5-10 MPH EARLY, SHIFTING TO THE EAST IN  
THE AFTERNOON.  
RIDGETOP...........WEST TO NORTHWEST 10-15 MPH IN THE MORNING, SHIFTING  
EAST IN THE AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 9000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10 MPH.  
 

 
FORECASTER...LESTER  
REQUESTED BY...MILES CITY DISPATCH  
TYPE OF REQUEST...WILDFIRE  
.TAG 2517249.0/BYZ  
.DELDT 07/03/25  
.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