439  
FNUS75 KMSO 301739  
FWSMSO  
 
SPOT FORECAST FOR ALDER DITCH  
NATIONAL WEATHER SERVICE MISSOULA MT  
1139 AM MDT WED SEP 30 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON SEPTEMBER 30.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
COOL AND SHOWERY TODAY BECOMING PARTLY TO MOSTLY  
CLOUDY THROUGH THE REST OF THE FORECAST PERIOD. LOW TO NO CHANCE  
FOR WETTING RAIN. WESTERLY WINDS TODAY BECOME MORE TERRAIN-DRIVEN  
FOR THURSDAY. MEDIOCRE OVERNIGHT RECOVERIES EXPECTED ABOVE THE  
VALLEY FLOOR.  
   
REST OF TODAY  
 
* SKY/WEATHER.........PARTLY CLOUDY, SLIGHT CHANCE FOR RAIN  
SHOWERS.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....59-64.  
* MIN HUMIDITY........44-49 PERCENT.  
* WIND (20 FT)........WEST 5-10 MPH WITH GUSTS UP TO 20 MPH.  
* MIXING HEIGHT.......INCREASING TO 6000 FT AGL.  
* MIXING WINDS........WEST 15 MPH.  
* PRECIP AMOUNT.......0.00-0.03 INCHES.  
   
TONIGHT  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MIN TEMPERATURE.....41-46.  
* MAX HUMIDITY........50-55 PERCENT.  
* WIND (20 FT)........BECOMING VARIABLE/WEST 1-4 MPH OVERNIGHT.  
* MIXING HEIGHT.......DECREASING TO 500 FT AGL.  
* MIXING WINDS........WEST 5 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
THURSDAY  
 
* SKY/WEATHER.........MOSTLY CLOUDY.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MAX TEMPERATURE.....60-65.  
* MIN HUMIDITY........41-46 PERCENT.  
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING UPSLOPE 1-5 MPH  
WITH GUSTS TO 10 MPH.  
* MIXING HEIGHT.......INCREASING TO 5000 FT AGL IN THE AFTERNOON.  
* MIXING WINDS........WEST-SOUTHWEST 10 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
 
 
FORECASTER...PARKER  
REQUESTED BY...ART TRAHAN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2622837.0/MSO  
.DELDT 09/30/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JACK.CURRIE@CSKT.ORG,NICK.MAYS@CSKT.ORG,JUSTIN.UNDERWOOD@CSKT.ORG,ART.TRAHAN@CSKT.ORG  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MT Page
The Nexlab ID Page
Main Text Page