087  
FNUS55 KMSO 232030  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
230 PM MDT SUN SEP 23 2018  
 
   
DISCUSSION
 
 
IDAHO: NORTHWESTERLY FLOW WILL BRING A SLOW WARMING TREND THROUGH THE  
WEEK, BUT HIGH VALLEY LOCATIONS WILL HAVE COLD MORNINGS ON TUESDAY AND  
WEDNESDAY. OTHER THAN CLOUD COVER FROM TIME TO TIME, LOWER HUMIDITY AND  
DRY CONDITIONS ARE EXPECTED THROUGH AT LEAST THE MIDDLE OF THE WEEK.  
 
MONTANA: TEMPERATURES REMAIN BELOW AVERAGE ON MONDAY, AND SHOWER  
ACTIVITY WILL RETURN. MOST OF THE SHOWERS ARE STILL EXPECTED IN  
NORTHWEST MONTANA AND ALONG THE DIVIDE ON MONDAY. NORTHWESTERLY FLOW ON  
TUESDAY AND WEDNESDAY WILL BRING LOWER HUMIDITY AND A GRADUAL WARMING  
TREND, BUT WITH COOL OVERNIGHT TEMPERATURES.  
 
VIEW FIRE WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL  
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA  
 
IDZ102-103-242030-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
130 PM PDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....30-40.  
* MAX HUMIDITY........78-88 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 5-10 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-55 RIDGES.  
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 40-50 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............NORTHWEST 5-15 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....30-40.  
* MAX HUMIDITY........76-86 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............NORTHWEST 5-15 MPH DECREASING TO UP TO 5 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....65-75 VALLEYS AND 55-60 RIDGES.  
* MIN HUMIDITY........26-36 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST UP TO 5 MPH.  
* HAINES INDEX........4 LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 35-45. HIGHS 65-75. DIURNAL TERRAIN  
WINDS TO 10 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS 40-50. HIGHS 70-80. SOUTHWEST WINDS  
5-10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. SOUTHWEST WINDS  
5-10 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 40-50. HIGHS  
60-70.  
 

 
 
MTZ104-105-242030-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
230 PM MDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. SNOW  
LEVEL 7500 FEET.  
* MIN TEMPERATURE.....30-40.  
* MAX HUMIDITY........86-96 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE  
MORNING. CHANCE OF RAIN SHOWERS. SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. SNOW LEVEL 6500 FEET.  
* MAX TEMPERATURE.....55-65 VALLEYS AND 45-50 RIDGES.  
* MIN HUMIDITY........36-46 PERCENT VALLEYS AND 51-61 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH.  
* RIDGE TOP............WEST 10-20 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1 IN THE KOOTENAI...AND 2 IN THE  
FLATHEAD/GLACIER PARK.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. PATCHY  
FOG AFTER MIDNIGHT. SNOW LEVEL 7000 FEET.  
* MIN TEMPERATURE.....30-35.  
* MAX HUMIDITY........85-95 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 10-15 MPH EARLY IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............WEST 10-20 MPH BECOMING NORTHWEST 5-10 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG IN THE MORNING.  
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-55 RIDGES.  
* MIN HUMIDITY........29-39 PERCENT VALLEYS AND 37-47 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-10 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70. SOUTHWEST WINDS  
5-10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. LOWS  
35-45. HIGHS 55-65. NORTH WINDS 5-10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE  
OF RAIN SHOWERS. LOWS 35-45. HIGHS 50-60. EAST WINDS 5-15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF  
RAIN SHOWERS. LOWS 30-40. HIGHS 45-55.    
SUNDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. LOWS  
30-40. HIGHS 50-60.  
 

 
 
MTZ106-108-242030-  
WEST LOLO-EAST LOLO-  
230 PM MDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SNOW LEVEL 7000 FEET.  
* MIN TEMPERATURE.....35-40.  
* MAX HUMIDITY........79-89 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. SNOW  
LEVEL 6500 FEET.  
* MAX TEMPERATURE.....55-65 VALLEYS AND 45-55 RIDGES.  
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 41-51 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING 10-15 MPH IN THE AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH INCREASING TO 10-20 MPH IN THE  
AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS. SNOW LEVEL 7000 FEET.  
* MIN TEMPERATURE.....28-38.  
* MAX HUMIDITY........81-91 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-15 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING WEST 5-10 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-60 RIDGES.  
* MIN HUMIDITY........19-29 PERCENT VALLEYS AND 27-37 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST UP TO 5 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 35-45. HIGHS 60-70. WEST WINDS  
5-10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70. WEST WINDS  
5-10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. LOWS 40-50.  
HIGHS 55-65. EAST WINDS 5-10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 35-45.  
HIGHS 55-65.    
SUNDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. LOWS  
35-45. HIGHS 55-65.  
 

 
 
MTZ107-242030-  
SALISH AND KOOTENAI RESERVATION-  
230 PM MDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
SNOW LEVEL 7000 FEET.  
* MIN TEMPERATURE.....35-45.  
* MAX HUMIDITY........70-80 PERCENT VALLEYS AND 88-98 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. SNOW  
LEVEL 6500 FEET.  
* MAX TEMPERATURE.....60-65 VALLEYS AND 45-50 RIDGES.  
* MIN HUMIDITY........26-36 PERCENT VALLEYS AND 41-51 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 10-20 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
PATCHY FOG AFTER MIDNIGHT.  
* MIN TEMPERATURE.....30-40.  
* MAX HUMIDITY........82-92 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING WEST 5-10 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...10 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG IN THE MORNING.  
* MAX TEMPERATURE.....65-70 VALLEYS AND 45-50 RIDGES.  
* MIN HUMIDITY........22-32 PERCENT VALLEYS AND 29-39 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTH UP TO 5 MPH BECOMING WEST 5-10 MPH IN  
THE AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS 35-45. HIGHS 65-75. SOUTHWEST WINDS  
5-10 MPH.    
THURSDAY
 
MOSTLY CLOUDY. LOWS 40-50. HIGHS 65-75. EAST WINDS  
5-10 MPH.    
FRIDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS.  
LOWS 40-50. HIGHS 55-65. NORTHEAST WINDS 5-10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 35-45.  
HIGHS 55-65.    
SUNDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 35-45. HIGHS  
55-65.  
 

 
 
MTZ109-242030-  
BITTERROOT-  
230 PM MDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....30-35.  
* MAX HUMIDITY........80-90 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SNOW LEVEL 6500 FEET.  
* MAX TEMPERATURE.....55-65 VALLEYS AND 45-50 RIDGES.  
* MIN HUMIDITY........24-34 PERCENT VALLEYS AND 40-50 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 5-15 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH.  
* HAINES INDEX........2 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....30-35.  
* MAX HUMIDITY........78-88 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......WEST 5-10 MPH.  
* RIDGE TOP............NORTHWEST 10-20 MPH DECREASING TO 5-10 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....65-70 VALLEYS AND 50-60 RIDGES.  
* MIN HUMIDITY........21-31 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............SOUTHWEST UP TO 5 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 35-45. HIGHS 60-70. WEST WINDS  
5-10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 35-45. HIGHS 65-75. WEST WINDS  
5-10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 40-50. HIGHS 60-70. SOUTHWEST WINDS  
5-10 MPH.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 40-50.  
HIGHS 60-70.    
SUNDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 40-50. HIGHS  
60-70.  
 

 
 
MTZ110-111-242030-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
230 PM MDT SUN SEP 23 2018  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.  
WIDESPREAD FROST AFTER MIDNIGHT.  
* MIN TEMPERATURE.....30-35.  
* MAX HUMIDITY........80-90 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 5-10 MPH BECOMING SOUTHWEST AFTER  
MIDNIGHT.  
* RIDGE TOP............WEST 5-15 MPH.  
* LAL.................1 IN THE DEERLODGE/WEST BEAVERHEAD...AND 2 IN  
THE EAST BEAVERHEAD.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. WIDESPREAD FROST IN THE  
MORNING. SNOW LEVEL 7000 FEET.  
* MAX TEMPERATURE.....50-60 VALLEYS AND 45-50 RIDGES.  
* MIN HUMIDITY........31-41 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......BECOMING NORTHWEST 5-15 MPH IN THE  
AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH INCREASING TO NORTHWEST 15-25  
MPH IN THE AFTERNOON.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
MONDAY NIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. WIDESPREAD FROST AFTER  
MIDNIGHT.  
* MIN TEMPERATURE.....25-35.  
* MAX HUMIDITY........79-89 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTHWEST 10-20 MPH DECREASING TO 5-10 MPH  
LATE IN THE EVENING, THEN BECOMING DOWNSLOPE/DOWNVALLEY 2-5  
MPH AFTER MIDNIGHT.  
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING WEST 5-10 MPH  
AFTER MIDNIGHT.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TUESDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. WIDESPREAD FROST IN THE  
MORNING.  
* MAX TEMPERATURE.....55-65 VALLEYS AND 50-55 RIDGES.  
* MIN HUMIDITY........21-31 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 5-10 MPH.  
* HAINES INDEX........3 VERY LOW.  
* LAL.................1.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 30-40. HIGHS 60-70. WEST WINDS  
10-15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70. WEST WINDS  
5-15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70. SOUTHWEST WINDS  
5-15 MPH.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS 35-45.  
HIGHS 60-70.    
SUNDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS 35-45. HIGHS  
60-70.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page
The Nexlab ID Page Main Text Page