146  
FNUS55 KMSO 232042  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
242 PM MDT TUE JUL 23 2019  
   
DISCUSSION
 
 
IDAHO: ANOTHER PLUME OF MONSOONAL MOISTURE HAS PUSHED INTO THE REGION  
THIS AFTERNOON, FURTHER MOISTENING AN ALREADY SOUPY ATMOSPHERE.  
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS ALL DISTRICTS  
THROUGH THE REMAINDER OF TODAY AND INTO TONIGHT. WHILE FREQUENT  
LIGHTNING IS EXPECTED, HEAVY RAINFALL MAY ALSO OCCUR GIVEN AN ABUNDANCE  
OF ATMOSPHERIC MOISTURE. A COLD FRONT PASSAGE ON WEDNESDAY WILL BRING  
BREEZY WINDS, ESPECIALLY ACROSS THE RIDGE TOPS. A RETURN TO MORE NORMAL  
TEMPERATURES AND SEASONABLY DRIER WEATHER IS EXPECTED STARTING THURSDAY  
AND PERSISTING THROUGH EARLY NEXT WEEK.  
 
MONTANA: RECENT DEVELOPMENT OF SOME THUNDERSTORMS ACROSS WESTERN  
MONTANA WILL ONLY BECOME MORE WIDESPREAD ACROSS THE BITTEROOT, LOLO,  
DEERLODGE AND BEAVERHEAD FORESTS THIS EVENING. THIS ACTIVITY WILL  
ULTIMATELY TRACK NORTHEAST TONIGHT AND AFFECT ALL FORESTS BY EARLY  
WEDNESDAY MORNING. FREQUENT LIGHTNING IS EXPECTED, BUT ALSO THE HIGH  
LIKELIHOOD OF HEAVY RAINFALL WITH MANY OF THESE STORMS. A STRONG COLD  
FRONT WILL PUSH ACROSS MONTANA ON WEDNESDAY WITH GUSTY WINDS EXPECTED  
ACROSS ALL FORESTS, BUT ESPECIALLY NW MONTANA. GUSTS ON THE RIDGES AND  
PEAKS COULD PUSH NEAR 50 MPH AT TIMES. THEREAFTER MORE SEASONABLY WARM  
AND DRIER WEATHER IS EXPECTED TO TAKE HOLD ON THURSDAY AND CONTINUE  
INTO AT LEAST EARLY NEXT WEEK.  
 
IDZ102-103-242045-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
142 PM PDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS.  
* MIN TEMPERATURE.....55-65 VALLEYS AND 45-55 RIDGES.  
* MAX HUMIDITY........72-82 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH BECOMING VARIABLE LESS  
THAN 5 MPH IN THE LATE EVENING AND EARLY MORNING, THEN  
BECOMING WEST 5-10 MPH LATE IN THE NIGHT.  
* RIDGE TOP............SOUTH 10-20 MPH BECOMING WEST 10-15 MPH LATE  
IN THE NIGHT.  
* LAL.................3.  
* CWR (> 0.10 INCH)...20 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....78-88 VALLEYS AND 65-75 RIDGES.  
* MIN HUMIDITY........21-31 PERCENT VALLEYS AND 28-38 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST 15-25 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....43-53.  
* MAX HUMIDITY........55-65 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTH 5-10 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH DECREASING TO 5-10 MPH  
AFTER MIDNIGHT, THEN BECOMING SOUTH EARLY IN THE MORNING.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-95 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........18-28 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTH 5-10 MPH BECOMING WEST IN THE  
AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 85-95. SOUTHEAST WINDS  
5-10 MPH.    
SATURDAY
 
NOT AS WARM. MOSTLY CLEAR. LOWS 55-65. HIGHS 75-85. WEST  
WINDS 10-15 MPH.    
SUNDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 10-15 MPH.    
MONDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90.    
TUESDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90.  
 

 
 
MTZ104-105-242045-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
242 PM MDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND CHANCE OF  
THUNDERSTORMS.  
* MIN TEMPERATURE.....50-60.  
* MAX HUMIDITY........94-100 PERCENT VALLEYS AND 78-88 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH INCREASING TO 5-15  
MPH IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP............SOUTH 10-15 MPH INCREASING TO 15-25 MPH IN  
THE LATE EVENING AND OVERNIGHT.  
* LAL.................3.  
* CWR (> 0.10 INCH)...70 PERCENT IN THE KOOTENAI...AND 40 PERCENT  
IN THE FLATHEAD/GLACIER PARK.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE.....75-80 VALLEYS AND 55-65 RIDGES.  
* MIN HUMIDITY........26-36 PERCENT VALLEYS AND 45-55 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING SOUTHWEST 15-25 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST 20-30 MPH INCREASING TO 35-45 MPH  
IN THE AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....40-50.  
* MAX HUMIDITY........68-78 PERCENT VALLEYS AND 55-65 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 15-25 MPH BECOMING DOWNSLOPE/DOWNVALLEY  
5-10 MPH.  
* RIDGE TOP............WEST 30-40 MPH BECOMING SOUTHWEST 10-20 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-70 RIDGES.  
* MIN HUMIDITY........19-29 PERCENT VALLEYS AND 33-43 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST 10-20 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85. SOUTHWEST WINDS 10-20 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 55-65. HIGHS 70-80. SOUTHWEST WINDS  
15-25 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. SOUTHWEST WINDS  
15-25 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.    
TUESDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85.  
 

 
 
MTZ106-108-242045-  
WEST LOLO-EAST LOLO-  
242 PM MDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS.  
* MIN TEMPERATURE.....55-60.  
* MAX HUMIDITY........82-92 PERCENT VALLEYS AND 74-84 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH BECOMING SOUTHEAST  
5-15 MPH IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
SOUTHWEST 5-10 MPH LATE IN THE NIGHT.  
* RIDGE TOP............SOUTH 10-20 MPH.  
* LAL.................3.  
* CWR (> 0.10 INCH)...40 PERCENT IN THE WEST LOLO...AND 20 PERCENT  
IN THE EAST LOLO.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY. SLIGHT  
CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE.....65-75.  
* MIN HUMIDITY........26-36 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING 10-20 MPH IN THE AFTERNOON.  
* RIDGE TOP............WEST 15-25 MPH INCREASING TO 30-40 MPH IN  
THE AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....40-50.  
* MAX HUMIDITY........60-70 PERCENT VALLEYS AND 49-59 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH BECOMING NORTHWEST 5-10 MPH  
AFTER MIDNIGHT.  
* RIDGE TOP............WEST 25-35 MPH BECOMING SOUTHWEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....75-85 VALLEYS AND 68-78 RIDGES.  
* MIN HUMIDITY........19-29 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 5-15 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
 
MOSTLY CLEAR. LOWS 55-65. HIGHS 75-85. SOUTHWEST WINDS  
15-25 MPH.    
SUNDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85. WEST WINDS 15-25 MPH.    
MONDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85.    
TUESDAY
 
CLEAR. LOWS 50-60. HIGHS 80-90.  
 

 
 
MTZ107-242045-  
SALISH AND KOOTENAI RESERVATION-  
242 PM MDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS.  
* MIN TEMPERATURE.....60-65 VALLEYS AND 50-55 RIDGES.  
* MAX HUMIDITY........76-86 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTH 5-10 MPH.  
* RIDGE TOP............SOUTHEAST 15-25 MPH BECOMING SOUTHWEST 10-20  
MPH LATE IN THE NIGHT.  
* LAL.................3.  
* CWR (> 0.10 INCH)...40 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY. SLIGHT  
CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 55-60 RIDGES.  
* MIN HUMIDITY........22-32 PERCENT VALLEYS AND 30-40 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING 10-20 MPH IN THE AFTERNOON.  
* RIDGE TOP............SOUTHWEST 10-20 MPH INCREASING TO WEST 30-40  
MPH IN THE AFTERNOON.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....45-50.  
* MAX HUMIDITY........55-65 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH EARLY IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............WEST 30-40 MPH BECOMING SOUTHWEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-65 RIDGES.  
* MIN HUMIDITY........21-31 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
CLEAR. LOWS 50-60. HIGHS 85-95. SOUTHWEST WINDS 10-15 MPH.    
SATURDAY
 
NOT AS WARM. MOSTLY CLEAR. LOWS 55-65. HIGHS 75-85.  
SOUTHWEST WINDS 15-25 MPH.    
SUNDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90. SOUTHWEST WINDS 10-20 MPH.    
MONDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90.    
TUESDAY
 
CLEAR. LOWS 55-65. HIGHS 80-90.  
 

 
 
MTZ109-242045-  
BITTERROOT-  
242 PM MDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE  
EVENING. CHANCE OF RAIN SHOWERS.  
* MIN TEMPERATURE.....50-60.  
* MAX HUMIDITY........81-91 PERCENT VALLEYS AND 72-82 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH BECOMING SOUTH IN THE  
LATE EVENING AND OVERNIGHT.  
* RIDGE TOP............SOUTHWEST 5-15 MPH.  
* LAL.................3.  
* CWR (> 0.10 INCH)...30 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 65-70 RIDGES.  
* MIN HUMIDITY........14-24 PERCENT VALLEYS AND 24-34 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH.  
* RIDGE TOP............WEST 5-15 MPH INCREASING TO 20-30 MPH IN THE  
AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* MIN TEMPERATURE.....40-50.  
* MAX HUMIDITY........56-66 PERCENT VALLEYS AND 49-59 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 5-15 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 20-30 MPH DECREASING TO 10-15 MPH  
IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING  
SOUTHWEST 5-10 MPH EARLY IN THE MORNING.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 70-75 RIDGES.  
* MIN HUMIDITY........20-30 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST 5-15 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. SOUTHWEST WINDS  
10-15 MPH.    
SATURDAY
 
NOT AS WARM. PARTLY CLOUDY. LOWS 55-65. HIGHS 70-80.  
SOUTHWEST WINDS 10-20 MPH.    
SUNDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85. WEST WINDS 10-20 MPH.    
MONDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85.    
TUESDAY
 
CLEAR. LOWS 50-60. HIGHS 75-85.  
 

 
 
MTZ110-111-242045-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
242 PM MDT TUE JUL 23 2019  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS.  
* MIN TEMPERATURE.....50-60.  
* MAX HUMIDITY........84-94 PERCENT VALLEYS AND 61-71 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-20 MPH BECOMING SOUTH 5-10 MPH IN  
THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP............NORTHWEST 15-25 MPH BECOMING SOUTH 5-15 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* LAL.................3.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
WEDNESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....78-88 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........23-33 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING WEST 15-25 MPH IN THE AFTERNOON.  
* RIDGE TOP............SOUTHWEST 10-20 MPH INCREASING TO WEST 30-40  
MPH IN THE AFTERNOON.  
* HAINES INDEX........4 LOW.  
* LAL.................1 IN THE DEERLODGE/WEST BEAVERHEAD...AND 2 IN  
THE EAST BEAVERHEAD.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....40-50.  
* MAX HUMIDITY........59-69 PERCENT VALLEYS AND 47-57 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 10-20 MPH BECOMING SOUTH 5-10 MPH  
AFTER MIDNIGHT.  
* RIDGE TOP............WEST 20-30 MPH DECREASING TO 5-10 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 70-75 RIDGES.  
* MIN HUMIDITY........13-23 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
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. WEST WINDS 10-20 MPH.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS. LOWS 50-60. HIGHS 75-85. SOUTHWEST WINDS 15-25 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85. WEST WINDS 15-25 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.    
TUESDAY
 
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.  
 

 
 
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