FNUS75 KMSO 282319
FWSMSO

SPOT FORECAST FOR PIERCE UNIT 8 9
NATIONAL WEATHER SERVICE MISSOULA MT
519 PM MDT WED SEP 28 2011

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON SEPTEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A CHILLY START IS EXPECTED ACROSS THE FIRE WHICH
COULD LEAVE FROST/MOISTURE ON THE FOLIAGE. DESPITE AN EAST/WEST
SURFACE PRESSURE GRADIENT...THE FIRE IS EXPECTED TO BE UNDER AN
INVERSION THAT WILL NOT REALIZE THESE WINDS. INSTEAD A SOUTH WIND
WILL DEVELOP IN THE MID TO LATE MORNING AND CONTINUE THROUGH THE
AFTERNOON. WITH WARMING TEMPERATURES AND DRIER AIR IN PLACE...HUMIDITIES
WILL BE SLIGHTLY LOWER THAN WEDNESDAY.

.THURSDAY...

SKY/WEATHER.........SUNNY. PATCHY FROST EARLY IN THE MORNING.
CWR.................0 PERCENT.
MAX TEMPERATURE.....71-76.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING SOUTH-SOUTHEAST
                    AROUND 6 MPH BY LATE MORNING...CONTINUING
                    THROUGH THE AFTERNOON.
MIXING HEIGHT.......3100 FT AGL.
MIXING WINDS........SOUTH 10 MPH.

$$
FORECASTER...MEAD
REQUESTED BY...ANTHONY BUTTERFIELD
TYPE OF REQUEST...PRESCRIBED
.TAG 20110929.PIERC.01/MSO