056  
FNUS75 KTFX 081446  
FWSTFX  
 
SPOT FORECAST FOR CABIN 70...MT-HLF  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
846 AM MDT THU MAY 8 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 08.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A MORE WESTERLY FLOW ALOFT TODAY WILL PUSH A WEAK WEATHER  
DISTURBANCE THROUGH THE REGION THAT WILL BRING A SMALL CHANCE FOR  
AFTERNOOON SHOWERS OR POSSIBLY AN ISOLATED THUNDERSTORM ALONG WITH  
A SHIFT FROM WESTERLY WINDS TO NORTHERLY WINDS THIS EVENING.  
OTHERWISE MAINLY DRY CONDITIONS AND AFTERNOON HEATING WILL LEAD TO  
CUMULUS BUILDUP WITH CLOUDS DECREASING OVERNIGHT.  
WARMING AND DRYING CONTINUES ON FRIDAY WITH LIGHTER SOUTH  
TO SOUTHWEST WINDS FRIDAY AFTERNOON.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED RAIN  
SHOWERS AND POSSIBLY A THUNDERSTORM THIS AFTERNOON.  
CWR.................5 PERCENT.  
CHANCE OF THUNDER...17 PERCENT.  
MAX TEMPERATURE.....61-66.  
MIN HUMIDITY........34-39 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 10 MPH. AFTERNOON GUSTS AROUND  
15 MPH WITH GUSTY AND ERRATIC WINDS POSSIBLE NEAR  
THUNDERSTORMS.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). ISOLATED RAIN  
SHOWERS AND THUNDERSTORMS POSSIBLE IN THE EVENING.  
CWR.................10 PERCENT.  
CHANCE OF THUNDER...18 PERCENT.  
MIN TEMPERATURE.....41-46.  
MAX HUMIDITY........56-61 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 10 MPH BECOMING NORTH BETWEEN 1800 AND 2000.  
GUSTY AND ERRATIC WINDS POSSIBLE NEAR THUNDERSTORMS IN THE  
EVENING.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...4 PERCENT.  
MAX TEMPERATURE.....65-70.  
MIN HUMIDITY........19-24 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 10 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
 

 
FORECASTER...HOENISCH  
REQUESTED BY...MIKE TUFFELMIRE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2513518.0/TFX  
.DELDT 05/08/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MICHAEL.TUFFELMIRE@USDA.GOV  
 
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