711  
FNUS75 KMSO 211614  
FWSMSO  
 
SPOT FORECAST FOR ALDER DITCH  
NATIONAL WEATHER SERVICE MISSOULA MT  
1014 AM MDT WED OCT 21 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON OCTOBER 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
HIGH PRESSURE WILL REMAIN IN PLACE INTO THURSDAY,  
BRINGING STABLE CONDITIONS AND POOR ATMOSPHERIC MIXING. TODAY  
WILL SEE WARM AND RELATIVELY DRY CONDITIONS WITH LIGHT WINDS.  
THURSDAY WILL COOL SLIGHTLY WITH HIGHER RHS DUE TO INCREASING  
CLOUD COVER AHEAD OF AN APPROACHING WEATHER SYSTEM. A FEW SHOWERS  
WILL BE POSSIBLE IN THE VICINITY BY THURSDAY EVENING. THERE IS A  
ROUGHLY 90 PERCENT CHANCE OF A WETTING RAIN BETWEEN THURSDAY  
NIGHT AND FRIDAY AT NOON.  
   
REST OF TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY BECOMING PARTLY CLOUDY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....66-71.  
* MIN HUMIDITY........33-38 PERCENT.  
* WIND (20 FT)........SOUTHEAST 2-4 MPH.  
* MIXING HEIGHT.......1500 FT AGL.  
* MIXING WINDS........SOUTH 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY BECOMING MOSTLY CLEAR.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MIN TEMPERATURE.....28-33.  
* MAX HUMIDITY........75-80 PERCENT.  
* WIND (20 FT)........WEST 2-5 MPH.  
* MIXING HEIGHT.......500 FT AGL.  
* MIXING WINDS........SOUTHWEST 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY BECOMING MOSTLY CLOUDY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....65-70.  
* MIN HUMIDITY........35-40 PERCENT.  
* WIND (20 FT)........SOUTHEAST 2-4 MPH.  
* MIXING HEIGHT.......2000 FT AGL.  
* MIXING WINDS........SOUTHEAST 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
 

 
FORECASTER...JENNK  
REQUESTED BY...ART TRAHAN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2624150.0/MSO  
.DELDT 10/21/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ART.TRAHAN@CSKT.ORG,NICK.MAYS@CSKT.ORG,DARRELL.CLAIRMONT@CSKT.ORG,JACK.CURRIE@CSKT.ORG  
 
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