112  
FNUS55 KMSO 251041  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
441 AM MDT MON OCT 25 2021  
 
   
DISCUSSION
 
 
IDAHO: CHANCES OF WETTING RAIN AND HIGH-ELEVATION SNOW ARE IN THE  
FORECAST THROUGHOUT THIS WEEK. DAYTIME HUMIDITY WILL MOSTLY REMAIN ABOVE  
50 PERCENT FOR ALL BUT THE LOWEST ELEVATIONS ALONG THE SALMON AND SNAKE  
RIVERS. WINDS AT THE RIDGETOPS MAY REACH AS HIGH AS 40 MPH ON  
WEDNESDAY. A SLIGHTLY DRIER PATTERN IS ANTICIPATED OVER THE WEEKEND  
THROUGH EARLY NEXT WEEK, HOWEVER DAYTIME HUMIDITY WILL CONTINUE TO BE  
RELATIVELY HIGH.  
 
MONTANA: CHANCES OF WETTING RAIN AND HIGH-ELEVATION SNOW ARE IN THE  
FORECAST THROUGHOUT THIS WEEK. DAYTIME HUMIDITY WILL MOSTLY REMAIN ABOVE  
50 PERCENT (OUTSIDE OF THE LOWEST ELEVATIONS OF SOUTHWEST MONTANA, EAST  
OF THE CONTINENTAL DIVIDE). ON WEDNESDAY, WINDS IN EXCESS OF 40 MPH ARE  
POSSIBLE ACROSS ALL ELEVATIONS OF SOUTHWEST MONTANA (EAST OF THE  
CONTINENTAL DIVIDE) AND OVER RIDGETOPS ALONG AND WEST OF THE DIVIDE. A  
SLIGHTLY DRIER PATTERN IS ANTICIPATED OVER THE WEEKEND THROUGH EARLY  
NEXT WEEK, HOWEVER DAYTIME HUMIDITY WILL CONTINUE TO BE RELATIVELY HIGH.  
 
VIEW FIRE WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL  
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA  
 
IDZ102-103-261045-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
341 AM PDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND SNOW. SNOW LEVEL 6000  
FEET.  
* MAX TEMPERATURE.....50-60 VALLEYS AND 40-45 RIDGES.  
* MIN HUMIDITY........59-69 PERCENT VALLEYS AND 71-81 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT IN THE PALOUSE/HELLS CANYON...AND  
70 PERCENT IN THE CLEARWATER/NEZ PERCE.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY AND CHANCE OF  
RAIN. SNOW LEVEL 5500 FEET.  
* MIN TEMPERATURE.....35-40 VALLEYS AND 25-35 RIDGES.  
* MAX HUMIDITY........82-92 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT IN THE PALOUSE/HELLS CANYON...AND  
40 PERCENT IN THE CLEARWATER/NEZ PERCE.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW WITH RAIN LIKELY. SNOW  
LEVEL 5000 FEET.  
* MAX TEMPERATURE.....48-58 VALLEYS AND 35-45 RIDGES.  
* MIN HUMIDITY........57-67 PERCENT VALLEYS AND 67-77 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-15 MPH.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLOUDY WITH RAIN AND SNOW. LOWS 35-45. HIGHS 45-55.  
SOUTHWEST WINDS 20-30 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 35-45.  
HIGHS 50-60. SOUTH WINDS 10-20 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS 40-50. HIGHS 55-65.  
SOUTH WINDS 5-15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY. CHANCE OF RAIN. LOWS 35-45. HIGHS  
45-55.    
SUNDAY
 
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55.  
 

 
 
MTZ104-105-261045-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
441 AM MDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND SNOW LIKELY. SNOW  
LEVEL 5500 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-45 RIDGES.  
* MIN HUMIDITY........50-60 PERCENT VALLEYS AND 68-78 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT IN THE KOOTENAI...AND 30 PERCENT IN  
THE FLATHEAD/GLACIER PARK.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. SNOW  
LEVEL 5000 FEET.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........100 PERCENT VALLEYS AND 84-94 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY AND CHANCE OF  
RAIN. SNOW LEVEL 5000 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 30-40 RIDGES.  
* MIN HUMIDITY........60-70 PERCENT VALLEYS AND 74-84 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...30 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLOUDY WITH RAIN AND CHANCE OF SNOW. LOWS 30-40.  
HIGHS 40-50. SOUTHWEST WINDS 20-30 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 30-40.  
HIGHS 45-55. SOUTHWEST WINDS 15-25 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS 35-45. HIGHS 45-55.  
SOUTH WINDS 10-20 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN AND SLIGHT CHANCE OF SNOW.  
LOWS 30-40. HIGHS 40-50.    
SUNDAY
 
PARTLY CLOUDY. LOWS 20-30. HIGHS 35-45.  
 

 
 
MTZ106-108-261045-  
WEST LOLO-EAST LOLO-  
441 AM MDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND SNOW. SNOW LEVEL 6500  
FEET.  
* MAX TEMPERATURE.....45-55 VALLEYS AND 38-48 RIDGES.  
* MIN HUMIDITY........54-64 PERCENT VALLEYS AND 70-80 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT IN THE WEST LOLO...AND 40 PERCENT  
IN THE EAST LOLO.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. SNOW  
LEVEL 5500 FEET.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........85-95 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. SNOW  
LEVEL 5000 FEET.  
* MAX TEMPERATURE.....38-48.  
* MIN HUMIDITY........52-62 PERCENT VALLEYS AND 62-72 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT IN THE WEST LOLO...AND 0 PERCENT  
IN THE EAST LOLO.  
   
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 35-45.  
HIGHS 40-50. SOUTHWEST WINDS 20-30 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 30-40.  
HIGHS 45-55. SOUTHWEST WINDS 15-25 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS 40-50. HIGHS 50-60.  
SOUTHWEST WINDS 10-15 MPH.    
SATURDAY
 
COLDER. PARTLY CLOUDY. CHANCE OF RAIN AND SLIGHT CHANCE OF  
SNOW. LOWS 30-40. HIGHS 40-50.    
SUNDAY
 
PARTLY CLOUDY. LOWS 25-35. HIGHS 40-50.  
 

 
 
MTZ107-261045-  
SALISH AND KOOTENAI RESERVATION-  
441 AM MDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN. SNOW LEVEL 6000 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........54-64 PERCENT VALLEYS AND 73-83 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND CHANCE OF  
SNOW. SNOW LEVEL 5500 FEET.  
* MIN TEMPERATURE.....35-40 VALLEYS AND 25-30 RIDGES.  
* MAX HUMIDITY........86-96 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............WEST 10-20 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. SNOW  
LEVEL 5000 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........55-65 PERCENT VALLEYS AND 73-83 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLOUDY WITH RAIN LIKELY AND SNOW. LOWS 35-45. HIGHS  
45-55. SOUTHWEST WINDS 15-25 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 35-45.  
HIGHS 50-60. SOUTHWEST WINDS 15-25 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS 40-50. HIGHS 55-65.  
SOUTH WINDS 5-15 MPH.    
SATURDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN. LOWS 35-45. HIGHS  
45-55.    
SUNDAY
 
PARTLY CLOUDY. LOWS 25-35. HIGHS 40-50.  
 

 
 
MTZ109-261045-  
BITTERROOT-  
441 AM MDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........CLOUDY. RAIN AND SNOW. SNOW LEVEL 7500 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-40 RIDGES.  
* MIN HUMIDITY........62-72 PERCENT VALLEYS AND 72-82 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...50 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY AND CHANCE OF  
RAIN. SNOW LEVEL 6000 FEET.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........82-92 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...30 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. SNOW  
LEVEL 5500 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-40 RIDGES.  
* MIN HUMIDITY........45-55 PERCENT VALLEYS AND 55-65 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. LOWS 30-40.  
HIGHS 40-50. SOUTHWEST WINDS 25-35 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS 30-40.  
HIGHS 45-55. SOUTHWEST WINDS 15-25 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH CHANCE OF RAIN. LOWS 40-50. HIGHS 50-60.  
SOUTH WINDS 5-15 MPH.    
SATURDAY
 
COLDER. PARTLY CLOUDY. CHANCE OF RAIN AND SNOW. LOWS 30-40.  
HIGHS 40-50.    
SUNDAY
 
PARTLY CLOUDY. LOWS 25-35. HIGHS 40-50.  
 

 
 
MTZ110-111-261045-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
441 AM MDT MON OCT 25 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN. SNOW IN THE AFTERNOON.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-45 RIDGES.  
* MIN HUMIDITY........60-70 PERCENT VALLEYS AND 76-86 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 10-20 MPH.  
* RIDGE TOP............SOUTHWEST 15-25 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...40 PERCENT IN THE DEERLODGE/WEST  
BEAVERHEAD...AND 60 PERCENT IN THE EAST BEAVERHEAD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY AND CHANCE OF  
RAIN. SNOW LEVEL 6500 FEET.  
* MIN TEMPERATURE.....25-30.  
* MAX HUMIDITY........98-100 PERCENT VALLEYS AND 89-99 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...50 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.  
* MAX TEMPERATURE.....40-50 VALLEYS AND 30-40 RIDGES.  
* MIN HUMIDITY........37-47 PERCENT VALLEYS AND 49-59 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH.  
* RIDGE TOP............WEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW. LOWS 30-40. HIGHS  
40-50. SOUTHWEST WINDS 20-30 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND SNOW. LOWS  
25-35. HIGHS 45-55. SOUTHWEST WINDS 10-20 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS 35-45. HIGHS  
50-60. SOUTH WINDS 5-15 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF RAIN AND SLIGHT CHANCE OF SNOW.  
LOWS 30-40. HIGHS 45-55.    
SUNDAY
 
COLDER. PARTLY CLOUDY. LOWS 20-30. HIGHS 35-45.  
 

 
 
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