888  
FNUS75 KMSO 250949  
FWSMSO  
 
SPOT FORECAST FOR LUBRECHT RX  
NATIONAL WEATHER SERVICE MISSOULA MT  
349 AM MDT FRI MAY 25 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0500 MDT ON MAY 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A RIDGE OF HIGH PRESSURE BUILDS OVER THE BURN SITE  
FOR FRIDAY, HOWEVER, THE OVERALL AIR MASS REMAINS VERY MOIST. THE  
RIDGE WILL HELP WITH LIGHTER WINDS, BUT THE MOIST AIR MASS WILL  
HELP FUEL ISOLATED THUNDERSTORMS AND SHOWERS IN THE AFTERNOON,  
DESPITE THE RIDGE BEING IN PLACE.  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....78-83.  
* MIN HUMIDITY........27-32 PERCENT.  
* WIND (20 FT)........VARIABLE 1-3 MPH. GUSTS 20-30 MPH LIKELY IN  
VICINITY OF THUNDERSTORMS.  
* CWR (> 0.10 INCH)...10 PERCENT.  
* MIXING HEIGHT.......500 FT AGL INCREASING TO 9500 FT AGL IN THE  
AFTERNOON.  
* MIXING WINDS........SOUTHWEST 5 MPH.  
* PRECIP AMOUNT.......0.01 INCHES.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN SHOWERS  
AFTER SUNSET.  
* MIN TEMPERATURE.....48-53.  
* MAX HUMIDITY........84-89 PERCENT.  
* WIND (20 FT)........NORTHEAST AROUND 5 MPH IN THE EVENING  
BECOMING VARIABLE 2-4 MPH.  
* CWR (> 0.10 INCH)...50 PERCENT.  
* MIXING HEIGHT.......9500 FT AGL DECREASING TO 500 FT AGL AFTER  
MIDNIGHT.  
* MIXING WINDS........SOUTHWEST 5 MPH.  
* PRECIP AMOUNT.......0.15 INCHES.  
   
SATURDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
IN THE MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.....72-77.  
* MIN HUMIDITY........39-44 PERCENT.  
* WIND (20 FT)........VARIABLE 2-5 MPH BECOMING WEST 6-8 MPH IN THE  
AFTERNOON.  
* CWR (> 0.10 INCH)...40 PERCENT.  
* MIXING HEIGHT.......500 FT AGL INCREASING TO 8000 FT AGL IN THE  
AFTERNOON.  
* MIXING WINDS........WEST 10 MPH.  
* PRECIP AMOUNT.......0.09 INCHES.  
 

 
FORECASTER...LEACH  
 
REQUESTED BY...VALENTIJN HOFF  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1810622.0/MSO  
 
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