FNUS75 KMSO 111854
FWSMSO

SPOT FORECAST FOR EMMA 46A
NATIONAL WEATHER SERVICE MISSOULA MT
1254 PM MDT FRI SEP 11 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL ENHANCE VALLEY INVERSIONS SATURDAY.
THIS WILL LEAD TO STABLE CONDITIONS AND POOR MIXING THROUGHOUT MOST
OF THE DAYTIME HOURS WITH LATE AFTERNOON MIXING POSSIBLE FOR 1 TO
2 HOURS PRIOR TO SUNSET. ANY SMOKE THAT REACHES ABOVE THE TERRAIN WILL
TRANSLATE WESTWARD WITH EAST WINDS ALOFT. HIGH CLOUDS WILL BEGIN TO
INCREASE SUNDAY AS A LOW PRESSURE SYSTEM MOVES WEST TOWARD THE
NORTHERN ROCKIES.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........UPSLOPE 5-8 MPH.
MIXING HEIGHT.......3300 FT AGL.
MIXING WINDS........SOUTHEAST 5 MPH.

.SATURDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....43-47.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........DOWNSLOPE 3-5 MPH.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........EAST 5 MPH.

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........UPSLOPE 2-5 MPH.
MIXING HEIGHT.......4800 FT AGL.
MIXING WINDS........EAST 5 MPH.

$$
FORECASTER...DEROSA/MEAD
REQUESTED BY...ALAN OSBORN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090912.EMMA4.01/MSO