856  
FNUS75 KMSO 121916  
FWSMSO  
 
SPOT FORECAST FOR ALDER DITCH  
NATIONAL WEATHER SERVICE MISSOULA MT  
116 PM MDT MON OCT 12 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 MDT ON OCTOBER 13.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
A WEAK RIDGE OF HIGH PRESSURE WILL BE OVER THE AREA  
ON TUESDAY CAUSING A WARMING AND DRYING TREND WITH LIMITED MIXING  
AND WINDS. THEN ON WEDNESDAY A SUBTLE DISTURBANCE WILL MOVE  
THROUGH THE REGION CAUSING INCREASED WINDS AND BETTER MIXING.  
   
TUESDAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....52-57.  
* MIN HUMIDITY........43-48 PERCENT.  
* WIND (20 FT)........VARIABLE 3-7 MPH.  
* MIXING HEIGHT.......3500 FT AGL.  
* MIXING WINDS........WEST 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
TUESDAY NIGHT  
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MIN TEMPERATURE.....32-37.  
* MAX HUMIDITY........64-69 PERCENT.  
* WIND (20 FT)........VARIABLE 1-3 MPH.  
* MIXING HEIGHT.......500 FT AGL.  
* MIXING WINDS........WEST 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
WEDNESDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....58-63.  
* MIN HUMIDITY........46-51 PERCENT.  
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING SOUTHWEST 5-10  
MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......INCREASING TO 4500 FT AGL IN THE AFTERNOON.  
* MIXING WINDS........WEST 10 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
 
 
FORECASTER...SMITH  
REQUESTED BY...ART TRAHAN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2623627.0/MSO  
.DELDT 10/12/26  
.FORMATTERVERSION 2.0.0  
.EMAIL NICK.MAYS@CSKT.ORG,DARRELL.CLAIRMONT@CSKT.ORG,JACK.CURRIE@CSKT.ORG,ART.TRAHAN@CSKT.ORG  
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