899  
FNUS55 KMSO 172027  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
227 PM MDT TUE JUL 17 2018  
   
DISCUSSION
 
 
IDAHO: A DRY WESTERLY FLOW IS EXPECTED THROUGH AT LEAST THE NEXT 7  
DAYS. A MORE PRONOUNCED WESTERLY FLOW IS EXPECTED TO DEVELOP WEDNESDAY  
AND AGAIN SATURDAY SUPPORTING ADDITIONAL AFTERNOON BREEZY CONDITIONS.  
 
MONTANA: A DRY WESTERLY FLOW IS EXPECTED THROUGH AT LEAST THE NEXT 7  
DAYS. A MORE PRONOUNCED WESTERLY FLOW IS EXPECTED TO DEVELOP WEDNESDAY  
AND AGAIN SATURDAY SUPPORTING ADDITIONAL AFTERNOON BREEZY CONDITIONS.  
 
VIEW FIRE WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL  
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA  
 
IDZ102-103-182030-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
127 PM PDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....55-60.  
* MAX HUMIDITY........63-73 PERCENT VALLEYS AND 44-54 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING SOUTHWEST UP TO  
5 MPH AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-95 VALLEYS AND 75-85 RIDGES.  
* MIN HUMIDITY........13-23 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST UP TO 5 MPH INCREASING TO 10-20 MPH IN  
THE AFTERNOON.  
* HAINES INDEX........5 MODERATE.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 54-64 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH UNTIL EARLY MORNING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING WEST 5-10 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-95 VALLEYS AND 75-85 RIDGES.  
* MIN HUMIDITY........14-24 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST UP TO 5 MPH INCREASING TO 5-15 MPH  
LATE IN THE AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90. WEST WINDS 5-10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS  
10-15 MPH.    
SUNDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 5-10 MPH.    
MONDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90.    
TUESDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90.  
 

 
 
MTZ104-105-182030-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
227 PM MDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 51-61 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTH 5-10 MPH.  
* RIDGE TOP............SOUTHWEST 5-10 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
* MIN HUMIDITY........14-24 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-15 MPH.  
* RIDGE TOP............SOUTHWEST 5-15 MPH INCREASING TO 15-25 MPH  
IN THE AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........72-82 PERCENT VALLEYS AND 65-75 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-15 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............WEST 15-25 MPH DECREASING TO 5-10 MPH AFTER  
MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-90 VALLEYS AND 70-75 RIDGES.  
* MIN HUMIDITY........16-26 PERCENT VALLEYS AND 23-33 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1 IN THE KOOTENAI...AND 2 IN THE  
FLATHEAD/GLACIER PARK.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85. SOUTHWEST WINDS 10-20 MPH.    
SATURDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85. SOUTHWEST WINDS 15-25 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80. WEST WINDS 10-15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80.    
TUESDAY
 
PARTLY CLOUDY. LOWS 50-60. HIGHS 75-85.  
 

 
 
MTZ106-108-182030-  
WEST LOLO-EAST LOLO-  
227 PM MDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLEAR. ISOLATED RAIN  
SHOWERS AND THUNDERSTORMS INTO EARLY THIS EVENING.  
* MIN TEMPERATURE.....50-60.  
* MAX HUMIDITY........60-70 PERCENT VALLEYS AND 37-47 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............SOUTHWEST 5-10 MPH.  
* LAL.................1 IN THE WEST LOLO...AND 2 IN THE EAST LOLO.  
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 73-83 RIDGES.  
* MIN HUMIDITY........11-21 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING WEST 10-15 MPH IN THE AFTERNOON.  
* RIDGE TOP............WEST 10-20 MPH.  
* HAINES INDEX........5 MODERATE.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........58-68 PERCENT VALLEYS AND 48-58 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
* RIDGE TOP............WEST 10-20 MPH DECREASING TO 5-10 MPH AFTER  
MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-85 RIDGES.  
* MIN HUMIDITY........16-26 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. SOUTHWEST WINDS 10-15 MPH.    
SATURDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 10-20 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85. WEST WINDS 10-15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.    
TUESDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.  
 

 
 
MTZ107-182030-  
SALISH AND KOOTENAI RESERVATION-  
227 PM MDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLEAR.  
* MIN TEMPERATURE.....55-60.  
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 48-58 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............SOUTHWEST 5-10 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
* MIN HUMIDITY........9-19 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING 10-15 MPH IN THE AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-10 MPH BECOMING WEST 10-20 MPH  
IN THE AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....53-58.  
* MAX HUMIDITY........64-74 PERCENT VALLEYS AND 58-68 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............WEST 10-20 MPH DECREASING TO 5-10 MPH AFTER  
MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
* MIN HUMIDITY........15-25 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 55-65. HIGHS 85-95. SOUTHWEST WINDS 10-15 MPH.    
SATURDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. SOUTHWEST WINDS 10-20 MPH.    
SUNDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 10-15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.    
TUESDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.  
 

 
 
MTZ109-182030-  
BITTERROOT-  
227 PM MDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLEAR. AN ISOLATED  
SHOWER INTO VERY EARLY THIS EVENING.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........57-67 PERCENT VALLEYS AND 40-50 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 5-10 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............SOUTHWEST 5-10 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
* MIN HUMIDITY........12-22 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING WEST 5-15 MPH IN THE AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-10 MPH INCREASING TO WEST 15-25  
MPH IN THE AFTERNOON.  
* HAINES INDEX........5 MODERATE.  
* LAL.................1.  
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....45-55.  
* MAX HUMIDITY........57-67 PERCENT MID SLOPES AND RIDGES AND 75-90  
PERCENT VALLEYS.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............WEST 15-25 MPH BECOMING NORTHWEST 5-15 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
* MIN HUMIDITY........11-21 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST UP TO 5 MPH INCREASING TO 10-15  
MPH LATE IN THE AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 10-15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS  
10-20 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85. WEST WINDS 5-10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.    
TUESDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.  
 

 
 
MTZ110-111-182030-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
227 PM MDT TUE JUL 17 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING CLEAR. SCATTERED RAIN SHOWERS AND THUNDERSTORMS INTO EARLY  
THIS EVENING.  
* MIN TEMPERATURE.....50-55.  
* MAX HUMIDITY........63-73 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............WEST 5-10 MPH.  
* LAL.................2.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-90 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........14-24 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH.  
* RIDGE TOP............SOUTHWEST 5-10 MPH INCREASING TO WEST 15-25  
MPH IN THE AFTERNOON.  
* HAINES INDEX........5 MODERATE.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....45-50.  
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 53-63 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH BECOMING SOUTHWEST 5-10 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP............WEST 10-20 MPH BECOMING NORTHWEST 5-10 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-90 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........12-22 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* HAINES INDEX........5 MODERATE.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. SOUTHWEST WINDS 10-15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. SOUTHWEST WINDS  
10-15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 50-60. HIGHS 75-85. WEST WINDS 5-15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.    
TUESDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.  
 

 
 
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