FNUS75 KMSO 120313
FWSMSO

SPOT FORECAST FOR PORCUPINE COMPLEX
NATIONAL WEATHER SERVICE MISSOULA MT
913 PM MDT TUE SEP 11 2012

FORECAST IS BASED ON REQUEST TIME OF 2051 MDT ON SEPTEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL SLOWLY BUILD OVER THE FIRE
WEDNESDAY AND THURSDAY, LEADING TO A VERY DRY AIRMASS WITH WARMING
TEMPERATURES. HUMIDITY IN THE BELOW FORECAST IS REPRESENTATIVE OF
AREAS WITHOUT SMOKE. LOCATIONS THAT REMAIN UNDER HEAVY SMOKE EACH
AFTERNOON WILL SEE HIGHER HUMIDITY BY ABOUT 10%. STRENGTHENING
INVERSIONS WILL CAUSE POOR HUMIDITY RECOVERY ON THE MID SLOPES AND
RIDGES. THESE INVERSIONS WILL ALSO DECREASE MIXING...PARTICULARLY
IN THE VALLEY BOTTOM AND MAY ALLOW FOR SMOKE TO LINGER LONGER AND
REMAIN THICKER.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 63-68...TOP 50-55.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 2-4 MPH BECOMING NORTHWEST
                    5-6 MPH IN THE AFTERNOON.
HAINES INDEX........4 LOW.

.WEDNESDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....BOTTOM AND TOP 33-38. 40-45 MIDSLOPES.
MAX HUMIDITY........BOTTOM 65-70 PERCENT...MIDSLOPES AND TOP
                    42-47 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 2-4 MPH.
HAINES INDEX........4 LOW.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 73-78...TOP 60-65.
MIN HUMIDITY........7-12 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-5 MPH.
HAINES INDEX........5 MODERATE.

$$
FORECASTER...PALLISTER
REQUESTED BY...PHILLIP KACIREK
TYPE OF REQUEST...WILDFIRE
.TAG 20120911.PORCU.01/MSO