FNUS75 KMSO 111751
FWSMSO

SPOT FORECAST FOR SELWAY FALLS CABIN
NATIONAL WEATHER SERVICE MISSOULA MT
1151 AM MDT FRI SEP 11 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON SEPTEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL CONTINUE TO ENHANCE VALLEY INVERSIONS
THROUGH SATURDAY. OVERALL THIS WILL LEAD TO STABLE CONDITIONS AND POOR
MIXING THROUGHOUT MOST OF THE DAYTIME HOURS WITH LATE AFTERNOON MIXING
POSSIBLE FOR 2 TO 3 HOURS PRIOR TO SUNSET. ANY SMOKE THAT REACHES
ABOVE THE TERRAIN WILL TRANSLATE WESTWARD WITH EAST WINDS ALOFT.
THERMAL BELTS WITHIN THE DEPTH OF THE UNIT WILL ALLOW FOR LOWER
HUMIDITIES AND INCREASED FIRE ACTIVITY.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 88-93. TOP 74-78.
MIN HUMIDITY........BOTTOM 13-18 PERCENT. TOP 18-24 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 4-6 MPH...VARIABLE TO 10 MPH IN
                    THE THERMAL BELT.
MIXING HEIGHT.......1900 FT AGL.
MIXING WINDS........EAST 5 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....BOTTOM 44-48. TOP 40-44.
MAX HUMIDITY........BOTTOM 90-95 PERCENT. TOP 80-85 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 3-5 MPH...VARIABLE TO 8 MPH IN
                    THE THERMAL BELT.
MIXING HEIGHT.......100 FT AGL.
MIXING WINDS........EAST 10 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 90-95. TOP 76-80.
MIN HUMIDITY........BOTTOM 11-16 PERCENT. TOP 16-22 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 5-7 MPH...VARIABLE TO 10 MPH IN
                    THE THERMAL BELT.
MIXING HEIGHT.......1900 FT AGL.
MIXING WINDS........SOUTHEAST 10 MPH.

$$
FORECASTER...DEROSA/MEAD
REQUESTED BY...JBROGAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090911.SELWA.01/MSO