075  
FNUS75 KMSO 201154  
FWSMSO  
 
SPOT FORECAST FOR LOST HORSE  
NATIONAL WEATHER SERVICE MISSOULA MT  
554 AM MDT FRI JUN 20 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 0610 MDT ON JUNE 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
COOLER TEMPERATURES WITH SHOWERS AND THUNDERSTORMS  
EXPECTED TODAY. WETTING RAINS BECOME LIKELY (90% CHANCE) BY THIS  
AFTERNOON. SNOW LEVELS LOWER OVERNIGHT WITH LIGHT ACCUMULATIONS  
POSSIBLE THROUGH SATURDAY MORNING. SATURDAY IS ON TRACK TO BE A  
COOL AND SHOWERY DAY WITH INCREASED WEST WINDS.  
   
REST OF TODAY  
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN RAIN SHOWERS AND  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* CWR (> 0.10 INCH)...90 PERCENT.  
* CHANCE LIGHTNING....40 PERCENT.  
* MAX TEMPERATURE.....51-56.  
* MIN HUMIDITY........71-76 PERCENT.  
* WIND (20 FT)........WEST 6-12 MPH WITH GUSTS AROUND 15 MPH.  
* MIXING HEIGHT.......2500 FT AGL.  
* MIXING WINDS........WEST 10 MPH.  
* PRECIP AMOUNT.......0.15-0.40 INCHES.  
   
TONIGHT  
 
* SKY/WEATHER.........CLOUDY. RAIN SHOWERS, SNOW SHOWERS AND CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN SNOW AND RAIN OVERNIGHT.  
* CWR (> 0.10 INCH)...90 PERCENT.  
* CHANCE LIGHTNING....30 PERCENT.  
* MIN TEMPERATURE.....28-33.  
* MAX HUMIDITY........95-100 PERCENT.  
* WIND (20 FT)........WEST 9-15 MPH.  
* MIXING HEIGHT.......1000 FT AGL.  
* MIXING WINDS........WEST 15 MPH.  
* PRECIP AMOUNT.......0.20-0.50 INCHES.  
   
SATURDAY  
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW IN THE MORNING, THEN RAIN  
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.  
* CWR (> 0.10 INCH)...40 PERCENT.  
* CHANCE LIGHTNING....20 PERCENT.  
* MAX TEMPERATURE.....43-48.  
* MIN HUMIDITY........64-69 PERCENT.  
* WIND (20 FT)........WEST 10-15 MPH WITH GUSTS AROUND 20 MPH.  
* MIXING HEIGHT.......3500 FT AGL INCREASING TO 5000 FT AGL LATE IN  
THE AFTERNOON.  
* MIXING WINDS........WEST 20 MPH.  
* PRECIP AMOUNT.......0.04-0.13 INCHES.  
 
 
FORECASTER...KITSMILLER  
REQUESTED BY...ZACHARY LEE  
TYPE OF REQUEST...WILDFIRE  
.TAG 2516153.2/MSO  
.DELDT 06/20/25  
.FORMATTERVERSION 2.0.0  
.EMAIL ZACHARY.LEE@USDA.GOV,PATRICK.MITCHELL@USDA.GOV  
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