645 
FNUS75 KMSO 241754
FWSMSO

SPOT FORECAST FOR PROPOSAL ROCK
NATIONAL WEATHER SERVICE MISSOULA MT
1154 AM MDT TUE JUN 24 2014

FORECAST IS BASED ON IGNITION TIME OF 1115 MDT ON JUNE 24. 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...THE ATMOSPHERE WILL BECOME VERY UNSTABLE THIS AFTERNOON 
WITH A FEW STRONG THUNDERSTORMS DEVELOPING IN THE VICINITY OF THE 
BURN.  A RATHER THICK LAYER OF HIGH CLOUDS SHOULD DELAY/HOLD BACK 
THE MAIN CUMULUS DEVELOPMENT AND THUNDERSTORM ACTIVITY UNTIL ABOUT 
2 PM.  WE THEN EXPECT MORE THAN ONE LINE OF STORMS TO TRAVERSE THE 
VALLEY AND IMPACT THIS BURN LOCATION THROUGH ABOUT 7 PM.  WEAK HIGH
PRESSURE AND A MORE STABLE ATMOSPHERE SHOULD RETURN TONIGHT INTO 
EARLY WEDNESDAY.  THE  ATMOSPHERE WILL THEN BECOME UNSTABLE ENOUGH 
WEDNESDAY AFTERNOON FOR MORE WIDELY SCATTERED AFTERNOON SHOWERS 
AND THUNDERSTORMS.     

.TODAY...

SKY/WEATHER.........THICK HIGH CLOUDS...BECOMING PARTLY CLOUDY BY
                    EARLY AFTERNOON.  BUILDING CUMULUS LEADING TO 
                    OCCASIONAL SHOWERS AND THUNDERSTORMS MAINLY
                    AFTER 2 PM.  BRIEF HEAVY RAIN, SMALL HAIL AND STRONG
                    GUSTY WINDS TO 50 MPH POSSIBLE WITH PASSING STORMS.
CWR.................60 PERCENT. 
MAX TEMPERATURE.....72-75. 
MIN HUMIDITY........30-35 PERCENT. 
WIND (20 FT)........WEST TO SOUTHWEST 3-9 MPH...BECOMING VARIABLE AROUND
                    PASSING THUNDERSTORMS THIS AFTERNOON.  GUSTS TO 50 
                    MPH POSSIBLE...BUT MOST GUSTS 30 TO 35 MPH WITH PASSING
                    SHOWERS.   
MIXING HEIGHT.......10000+ FT AGL. 
MIXING WINDS........SOUTHWEST 5 MPH. 

.TONIGHT...

SKY/WEATHER.........RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS 
                    IN THE EVENING...THEN CHANCE OF RAIN SHOWERS 
                    AFTER MIDNIGHT. 
CWR.................50 PERCENT. 
MIN TEMPERATURE.....39-44. 
MAX HUMIDITY........93-98 PERCENT. 
WIND (20 FT)........WEST WINDS 5-9 MPH IN THE EVENING BECOMING 
                    VARIABLE 2-4 MPH.  GUSTS 30-35 NEAR EVENING STORMS.  
MIXING HEIGHT.......LOWERING TO LESS THAN 500 FT AGL. 
MIXING WINDS........SOUTHWEST 10 MPH...BECOMING NORTHEAST 5 MPH. 

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY IN THE MORNING...BECOMING MOSTLY CLOUDY.  
                    SLIGHT CHANCE OF AFTERNOON SHOWERS OR THUNDERSTORM. 
                    IN THE AFTERNOON. 
CWR.................20 PERCENT. 
MAX TEMPERATURE.....67-70. 
MIN HUMIDITY........33-38 PERCENT. 
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING WEST 7-8 MPH IN THE 
                    AFTERNOON. 
MIXING HEIGHT.......INCREASING TO 7000 FT AGL. 
MIXING WINDS........SOUTHWEST 10 MPH. 

$$
FORECASTER...BAUCK
REQUESTED BY...HUTTON
TYPE OF REQUEST...PRESCRIBED
.TAG 20140624.PROPO.01/MSO