585  
FNUS75 KMSO 261824  
FWSMSO  
 
SPOT FORECAST FOR ALDER DITCH RAINBUCKET  
NATIONAL WEATHER SERVICE MISSOULA MT  
1224 PM MDT SUN APR 26 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 MDT ON APRIL 26.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A LARGE TROUGH OF LOW PRESSURE ALOFT WILL KEEP  
TEMPERATURES COOLER THAN NORMAL THE NEXT FEW DAYS. RADAR AND  
SATELLITE IMAGERY EARLY THIS AFTERNOON SHOWS SHOWERS DEVELOPING  
OVER THE HIGHER TERRAIN NEAR THE RX SITE. THIS TREND WILL  
CONTINUE THROUGH THIS EVENING, WITH A 40% CHANCE FOR MEASURABLE  
PRECIPITATION (0.01 INCHES) THROUGH THIS EVENING. WINDS WILL SHIFT  
OUT OF THE NORTHEAST BY MID-AFTERNOON, WITH OCCUSIONAL GUSTS OF  
12-18 MPH. ATMOSPHERIC INSTABILITY WILL INCREASE ON MONDAY,  
LEADING TO ANOTHER ROUND OF SHOWER ACTIVITY AND A 20% CHANCE OF  
LIGHTNING IN THE VICINITY BY MID-AFTERNOON.  
   
REST OF TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* CWR (> 0.10 INCH)...10 PERCENT.  
* CHANCE LIGHTNING....UP TO 10 PERCENT.  
* MAX TEMPERATURE.....42-47.  
* MIN HUMIDITY........46-51 PERCENT.  
* WIND (20 FT)........NORTH 3-5 MPH BECOMING NORTHEAST 6-8 MPH  
THIS AFERNOON WITH GUSTS OF 12-18 MPH.  
* MIXING HEIGHT.......4500 FT AGL.  
* MIXING WINDS........NORTHEAST 10 MPH.  
* PRECIP AMOUNT.......0.00-0.02 INCHES.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SOME FROST OVERNIGHT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* CHANCE LIGHTNING....0 PERCENT.  
* MIN TEMPERATURE.....25-30.  
* MAX HUMIDITY........63-68 PERCENT.  
* WIND (20 FT)........NORTHEAST 5-8 MPH SHIFTING TO THE NORTHWEST  
4-6 MPH OVERNIGHT.  
* MIXING HEIGHT.......1500 FT AGL DECREASING TO LESS THAN 100 FT  
AGL IN THE LATE EVENING AND OVERNIGHT.  
* MIXING WINDS........NORTHEAST 10 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS,  
SNOW SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.  
* CWR (> 0.10 INCH)...20 PERCENT.  
* CHANCE LIGHTNING....15 PERCENT.  
* MAX TEMPERATURE.....44-49.  
* MIN HUMIDITY........45-50 PERCENT.  
* WIND (20 FT)........VARIABLE 2-4 MPH BECOMING SOUTHEAST 3-6 MPH  
WITH GUSTS OF 8-12 MPH IN THE AFTERNOON.  
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 5000 FT AGL LATE IN  
THE MORNING.  
* MIXING WINDS........SOUTHWEST 5 MPH.  
* PRECIP AMOUNT.......0.00-0.03 INCHES.  
 

 
FORECASTER...LUKINBEAL  
REQUESTED BY...KELLY OBENNICK  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2611785.0/MSO  
.DELDT 04/26/26  
.FORMATTERVERSION 2.0.0  
.EMAIL KELLY.OBENNICK@CSKT.ORG,ART.TRAHAN@CSKT.ORG  
 
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