FNUS75 KMSO 121758
FWSMSO

SPOT FORECAST FOR JERRY JONHSON
NATIONAL WEATHER SERVICE MISSOULA MT
1158 AM MDT SAT SEP 12 2009

FORECAST IS BASED ON IGNITION TIME OF 1300 PDT ON SEPTEMBER 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...STABLE CONDITIONS AND POOR MIXING THROUGH MOST OF THE
DAYTIME HOURS CAN BE EXPECTED TODAY. THERMAL BELTS WITHIN THE DEPTH
OF THE UNIT WILL ALLOW FOR LOWER HUMIDITIES AND INCREASED FIRE
ACTIVITY. HIGH CLOUDS AND INSTABILITY SHOULD INCREASE SUNDAY AS ONE
LOW PRESSURE SYSTEM MOVES WEST TOWARD THE NORTHERN ROCKIES AND A
SECOND SYSTEM APPROACHES CENTRAL IDAHO FROM NORTHERN CALIFORNIA.
THIS SECOND SYSTEM SHOULD IMPACT THE DISTRICT MONDAY...BRINGING THE
POSSIBILITY OF SHOWERS AND THUNDERSTORMS WITH INCREASED WINDS.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 83-88. TOP 76-81.
MIN HUMIDITY........BOTTOM 16-21 PERCENT. TOP 22-27 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 4-6 MPH.
MIXING HEIGHT.......3400 FT AGL.
MIXING WINDS........SOUTHEAST 10 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....BOTTOM 41-46. TOP 44-49.
MAX HUMIDITY........BOTTOM 80-85 PERCENT. TOP 85-90 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 4-6 MPH...VARIABLE TO 8 MPH IN THE
                    THERMAL BELT.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........EAST 5 MPH.

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 80-85. TOP 73-78.
MIN HUMIDITY........BOTTOM 20-25 PERCENT. TOP 24-29 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 4-7 MPH.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.

$$
FORECASTER...DEROSA/SMITH
REQUESTED BY...M  HART
TYPE OF REQUEST...PRESCRIBED
.TAG 20090912.JERRY.01/MSO