FNUS75 KMSO 212122 FWSMSO SPOT FORECAST FOR WETGULCH 6 NATIONAL WEATHER SERVICE MISSOULA MT 322 PM MDT TUE APR 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1520 PDT ON APRIL 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A RIDGE OF HIGH PRESSURE OVER THE AREA WILL BREAK DOWN WEDNESDAY AS AN UPPER TROUGH APPROACHES THE BURN AREA FROM THE NORTHWEST. THE ATMOSPHERE WILL BE VERY UNSTABLE WEDNESDAY AFTERNOON LEADING TO THE DEVELOPMENT OF CUMULUS CLOUDS AND BREEZY TO OCCASIONALLY GUSTY CONDITIONS. HOWEVER MOISTURE WILL BE VERY LIMITED AND THUS LITTLE PRECIPITATION IS EXPECTED FROM THESE STORMS. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. CWR.................10 PERCENT. MAX TEMPERATURE.....73-78. MIN HUMIDITY........21-26 PERCENT. $$ FORECASTER...DICKERSON REQUESTED BY...MIKE VANDERPAS TYPE OF REQUEST...PRESCRIBED .TAG 20090421.WETGU.01/MSO