092  
FNUS75 KMSO 210240  
FWSMSO  
 
SPOT FORECAST FOR DOMINIC BUTTE  
NATIONAL WEATHER SERVICE MISSOULA MT  
840 PM MDT THU JUL 20 2017  
 
FORECAST IS BASED ON REQUEST TIME OF 2100 MDT ON JULY 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
WARM AND DRY WEATHER WILL CONTINUE. IT WILL BE A FEW  
DEGREES COOLER FRIDAY BUT MIN RH IS STILL EXPECTED INTO THE LOW TO  
MID 20 PERCENT. RH RECOVERY WILL BE BETTER TONIGHT THAN LAST  
NIGHT BUT RETURN TO POOR RECOVERY LEVELS AGAIN FRIDAY NIGHT.  
WINDS WILL DIMINISH SOMEWHAT OVERNIGHT BUT PICK SLIGHTLY AGAIN  
FROM THE WEST ON FRIDAY AFTERNOON. SATURDAY WILL SEE CONTINUED DRY  
CONDITIONS WITH A WARMING TREND INTO SUNDAY, WINDS WILL BECOME  
PRIMARILY TERRAIN DRIVEN OVER THE WEEKEND.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....45-50.  
* MAX HUMIDITY........55-60 PERCENT.  
* WIND (20 FT)........WEST 7-12 MPH WITH GUSTS TO AROUND 25 MPH  
DECREASING TO AROUND 7 MPH AFTER SUNSET.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* LAL.................1.  
* MIXING HEIGHT.......9000 FT AGL DECREASING TO LESS THAN 100 FT  
AGL AFTER SUNSET.  
* MIXING WINDS........SOUTHWEST 15 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
FRIDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE.....65-70.  
* MIN HUMIDITY........20-25 PERCENT.  
* WIND (20 FT)........WEST 7-9 MPH BECOMING WEST 8-12 MPH IN THE  
AFTERNOON. GUSTS UP TO 25 MPH IN THE AFTERNOON.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* LAL.................1.  
* MIXING HEIGHT.......LESS THAN 100 FT AGL INCREASING TO 8000 FT  
AGL IN THE AFTERNOON.  
* MIXING WINDS........WEST 15 MPH.  
* HAINES INDEX........3 VERY LOW.  
* PRECIP AMOUNT.......0.00 INCHES.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE.....47-52.  
* MAX HUMIDITY........40-45 PERCENT.  
* WIND (20 FT)........WEST 8-12 MPH WITH GUSTS TO AROUND 20 MPH  
DECREASING TO 5-6 MPH AFTER SUNSET.  
* CWR (> 0.10 INCH)...0 PERCENT.  
* LAL.................1.  
* MIXING HEIGHT.......8000 FT AGL DECREASING TO LESS THAN 100 FT  
AGL AFTER SUNSET.  
* MIXING WINDS........WEST 15 MPH.  
* PRECIP AMOUNT.......0.00 INCHES.  
 

 
FORECASTER...BOOTH  
 
REQUESTED BY...WARREN APPELHANS  
TYPE OF REQUEST...WILDFIRE  
.TAG 1713031.1/MSO  
 
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