204  
FNUS75 KBYZ 021207  
FWSBYZ  
 
SPOT FORECAST FOR EAST SIDE FIRE...CARBON COUNTY MT  
NATIONAL WEATHER SERVICE BILLINGS MT  
607 AM MDT SAT MAY 2 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON MAY 02.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH  
THIS FORECAST.  
   
DISCUSSION
 
 
TODAY WILL BE WARM AND DRY WITH DOWNSLOPE WINDS EARLY SHIFTING TO  
UPSLOPE/NORTH BEFORE NOON. LOOK FOR ISOLATED SHOWERS BETWEEN  
5-11PM. ANY SHOWERS NEAR THE FIRE SITE WILL BE LIGHT BUT COULD  
PRODUCE ERRATIC WIND GUSTS. THERE IS A GREATER CHANCE OF SHOWERS  
AND WEAK THUNDERSTORMS SUNDAY AFTERNOON, CAPABLE OF PRODUCING WIND  
GUSTS TO 35 MPH. MONDAY AND TUESDAY ARE LOOKING COOLER WITH SNOW  
SHOWERS POSSIBLE.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING, THEN INCREASING  
AFTERNOON CLOUDS. ISOLATED RAIN SHOWERS  
AFTER 5PM.  
CWR.................LESS THAN 5 PERCENT.  
CHANCE OF LIGHTNING.5 PERCENT.  
MAX TEMPERATURE.....55-59.  
MIN HUMIDITY........24-28 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST 5-10 MPH SHIFTING TO THE NORTH BY  
11AM. AFTERNOON GUSTS TO 15 MPH.  
RIDGETOP...........WEST TO NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......INCREASING TO 7500 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST 12 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE  
EVENING. ERRATIC WIND GUSTS TO 25 MPH  
POSSIBLE IN THE EARLY EVENING.  
CWR.................LESS THAN 5 PERCENT.  
CHANCE OF LIGHTNING.5 PERCENT.  
MIN TEMPERATURE.....37-41.  
MAX HUMIDITY........54-58 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTH 6-12 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 3-7 MPH OVERNIGHT.  
GUSTS TO 20 MPH UNTIL SUNSET.  
RIDGETOP...........NORTHWEST 10-15 MPH.  
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....NORTHWEST 9 MPH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY SUNNY. SCATTERED SHOWERS AND AN ISOLATED  
WEAK THUNDERSTORM IN THE AFTERNOON. ERRATIC  
WIND GUSTS TO 35 MPH POSSIBLE NEAR STORMS.  
CWR.................20 PERCENT.  
CHANCE OF LIGHTNING.20 PERCENT.  
MAX TEMPERATURE.....53-57.  
MIN HUMIDITY........34-38 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHWEST TO NORTH 8-12 MPH WITH AFTERNOON  
GUSTS TO 20 MPH.  
RIDGETOP...........NORTHWEST AROUND 15 MPH GUSTING TO 25 MPH.  
MIXING HEIGHT.......INCREASING TO 4500 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST 15 MPH.  
 

 
FORECASTER...LESTER  
REQUESTED BY...BILLINGS DISPATCH  
TYPE OF REQUEST...WILDFIRE  
.TAG 2611877.4/BYZ  
.DELDT 05/02/26  
.FORMATTERVERSION 2.0.0  
.EMAIL CALLEN@CARBONMT.GOV,DOUGLAS.ZIMMER@USDA.GOV,MTBDC@FIRENET.GOV  
 
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