645  
FNUS55 KMSO 201024  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
424 AM MDT SUN OCT 20 2019  
 
   
DISCUSSION
 
 
IDAHO: VALLEY RAIN AND SNOW ABOVE 4000 FEET WILL OCCUR THROUGH THE  
MORNING HOURS. LATER THIS AFTERNOON THROUGH MONDAY MORNING ANOTHER  
WEATHER DISTURBANCE WILL MOVE THROUGH THE REGION FOR ADDITIONAL  
ACCUMULATING SNOWS ABOVE 4000 FEET.  
 
MONTANA: SCATTERED PRECIPITATION WILL OCCUR ACROSS THE BEAVERHEAD/DEERLODGE  
NF THROUGH THE MORNING HOURS. LATER THIS AFTERNOON THROUGH MONDAY  
MORNING ANOTHER WEATHER DISTURBANCE WILL BRING SCATTERED RAIN AND  
MOUNTAIN SNOW SHOWERS TO ALL OF WESTERN MONTANA.  
 
VIEW FIRE WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL  
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA  
 
IDZ102-103-211030-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
324 AM PDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. AND CHANCE OF SNOW SHOWERS.  
SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....43-53 VALLEYS AND 30-40 RIDGES.  
* MIN HUMIDITY........66-76 PERCENT VALLEYS AND 75-85 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. SNOW SHOWERS AND RAIN SHOWERS.  
SNOW LEVEL 4500 FEET.  
* MIN TEMPERATURE.....35-40 VALLEYS AND 25-35 RIDGES.  
* MAX HUMIDITY........90-100 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............SOUTHWEST 15-25 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...70 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........CLOUDY. RAIN SHOWERS AND SNOW SHOWERS LIKELY.  
SNOW LEVEL 5000 FEET.  
* MAX TEMPERATURE.....45-55 VALLEYS AND 30-40 RIDGES.  
* MIN HUMIDITY........74-84 PERCENT VALLEYS AND 86-96 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 15-25 MPH BECOMING SOUTHWEST 10-20 MPH  
IN THE LATE MORNING AND AFTERNOON.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...40 PERCENT IN THE PALOUSE/HELLS CANYON...AND  
60 PERCENT IN THE CLEARWATER/NEZ PERCE.  
   
TUESDAY
 
CLOUDY WITH RAIN AND SNOW SHOWERS. LOWS 40-50. HIGHS 50-60.  
SOUTHWEST WINDS 15-25 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 35-45. HIGHS 45-55. WEST WINDS 15-25 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 30-40. HIGHS 50-60. SOUTH WINDS  
5-10 MPH.    
FRIDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 35-45.  
HIGHS 55-65.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 35-45. HIGHS 40-50.  
 

 
 
MTZ104-105-211030-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
424 AM MDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND  
RAIN SHOWERS. SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 25-35 RIDGES.  
* MIN HUMIDITY........60-70 PERCENT VALLEYS AND 82-92 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 15-25 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT IN THE KOOTENAI...AND 20 PERCENT IN  
THE FLATHEAD/GLACIER PARK.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND RAIN SHOWERS  
LIKELY. SNOW LEVEL 3500 FEET.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........96-100 PERCENT VALLEYS AND 88-98 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............SOUTHWEST 15-25 MPH DECREASING TO 5-15 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SNOW SHOWERS. SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 30-40 RIDGES.  
* MIN HUMIDITY........64-74 PERCENT VALLEYS AND 82-92 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH INCREASING TO 20-30 MPH  
LATE IN THE AFTERNOON.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
TUESDAY
 
CLOUDY WITH RAIN SHOWERS AND SNOW SHOWERS LIKELY. LOWS  
35-45. HIGHS 45-55. SOUTHWEST WINDS 20-30 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 30-40. HIGHS 40-50. WEST WINDS 25-35 MPH.    
THURSDAY
 
MOSTLY CLOUDY. LOWS 25-35. HIGHS 40-50. SOUTHWEST WINDS  
10-20 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. LOWS  
30-40. HIGHS 45-55.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND RAIN  
SHOWERS. LOWS 30-40. HIGHS 35-45.  
 

 
 
MTZ106-108-211030-  
WEST LOLO-EAST LOLO-  
424 AM MDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF LIGHT  
FREEZING RAIN IN THE MORNING. CHANCE OF SNOW SHOWERS. CHANCE OF  
RAIN SHOWERS IN THE AFTERNOON. SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....33-43.  
* MIN HUMIDITY........63-73 PERCENT VALLEYS AND 74-84 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND RAIN SHOWERS  
LIKELY. SNOW LEVEL 4000 FEET.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........90-100 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH BECOMING VARIABLE LESS THAN 5  
MPH IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP............SOUTHWEST 15-25 MPH BECOMING WEST 5-15 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...40 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE  
OF SNOW SHOWERS. SNOW LEVEL 4500 FEET.  
* MAX TEMPERATURE.....40-45 VALLEYS AND 33-43 RIDGES.  
* MIN HUMIDITY........70-80 PERCENT VALLEYS AND 78-88 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 20-30 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...40 PERCENT IN THE WEST LOLO...AND 20 PERCENT  
IN THE EAST LOLO.  
   
TUESDAY
 
CLOUDY WITH RAIN SHOWERS AND SNOW SHOWERS LIKELY. LOWS  
35-45. HIGHS 45-55. SOUTHWEST WINDS 20-30 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 30-40. HIGHS 40-50. WEST WINDS 25-35 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 25-35. HIGHS 45-55. SOUTHWEST WINDS  
10-15 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS 30-40. HIGHS 50-60.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 30-40. HIGHS 35-45.  
 

 
 
MTZ107-211030-  
SALISH AND KOOTENAI RESERVATION-  
424 AM MDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SNOW SHOWERS. SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 25-30 RIDGES.  
* MIN HUMIDITY........61-71 PERCENT VALLEYS AND 92 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........CLOUDY. SNOW SHOWERS AND RAIN SHOWERS LIKELY.  
SNOW LEVEL 4000 FEET.  
* MIN TEMPERATURE.....35-40 VALLEYS AND 25-30 RIDGES.  
* MAX HUMIDITY........92-100 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH UNTIL EARLY MORNING  
BECOMING DOWNSLOPE/DOWNVALLEY 1-3 MPH.  
* RIDGE TOP............SOUTHWEST 15-25 MPH DECREASING TO 5-15 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...30 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. SNOW LEVEL 4500 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........70-80 PERCENT VALLEYS AND 96 PERCENT RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 10-20 MPH INCREASING TO 20-30 MPH LATE  
IN THE AFTERNOON.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
TUESDAY
 
CLOUDY WITH RAIN SHOWERS LIKELY. LOWS 40-50. HIGHS 50-60.  
SOUTHWEST WINDS 20-30 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF SNOW SHOWERS. LOWS 35-45. HIGHS 45-55. WEST WINDS 25-35 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS  
10-15 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 35-45. HIGHS  
55-65.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 35-45. HIGHS 40-50.  
 

 
 
MTZ109-211030-  
BITTERROOT-  
424 AM MDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. SLIGHT  
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. SNOW LEVEL 4000 FEET.  
* MAX TEMPERATURE.....45-50 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........44-54 PERCENT VALLEYS AND 62-72 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........88-98 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...60 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY AND CHANCE OF  
RAIN SHOWERS. SNOW LEVEL 5000 FEET.  
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........48-58 PERCENT VALLEYS AND 69-79 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...40 PERCENT.  
   
TUESDAY
 
CLOUDY WITH RAIN SHOWERS AND SNOW SHOWERS LIKELY. LOWS  
35-45. HIGHS 45-55. SOUTHWEST WINDS 20-30 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND RAIN  
SHOWERS. LOWS 30-40. HIGHS 40-50. WEST WINDS 25-35 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
25-35. HIGHS 40-50. SOUTHWEST WINDS 10-15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 30-40. HIGHS 50-60.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW  
SHOWERS. LOWS 30-40. HIGHS 35-45.  
 

 
 
MTZ110-111-211030-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
424 AM MDT SUN OCT 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* MAX TEMPERATURE.....40-45 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........42-52 PERCENT VALLEYS AND 55-65 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY.  
* MIN TEMPERATURE.....20-30.  
* MAX HUMIDITY........86-96 PERCENT VALLEYS AND 73-83 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............WEST 15-25 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...30 PERCENT IN THE DEERLODGE/WEST  
BEAVERHEAD...AND 10 PERCENT IN THE EAST BEAVERHEAD.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* MAX TEMPERATURE.....40-50 VALLEYS AND 30-35 RIDGES.  
* MIN HUMIDITY........46-56 PERCENT VALLEYS AND 59-69 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH.  
* RIDGE TOP............WEST 20-30 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SNOW SHOWERS.  
LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS 30-40 MPH.    
WEDNESDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
30-40. HIGHS 35-45. WEST WINDS 30-40 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 20-30. HIGHS 40-50. WEST WINDS  
10-20 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 25-35. HIGHS 50-60.    
SATURDAY
 
COLDER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF RAIN. LOWS 30-40. HIGHS 35-45.  
 

 
 
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