FNUS76 KOTX 301634
FWSOTX

SPOT FORECAST FOR SABLE FIRE...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
934 AM PDT SUN AUG 30 2009

FORECAST IS BASED ON REQUEST TIME OF 0909 PDT ON AUGUST 30.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A MOIST AND MARGINALLY UNSTABLE ATMOSPHERE TODAY WILL ALLOW CUMULUS
BUILD UPS OVER THE FIRE AREA THIS AFTERNOON. A LIGHT PRESSURE GRADIENT
WILL PROMOTE MAINLY LIGHT TERRAIN DRIVEN WINDS. TEMPERATURES WILL
INCREASE EACH DAY FROM TODAY THROUGH MID-WEEK WITH A DECREASE EACH
DAY IN MINIMUM RH READINGS. ON MONDAY THERE IS A SLIGHT CHANCE OF
AFTERNOON SHOWERS OR THUNDERSTORMS. ON TUESDAY A WEAK DISTURBANCE WILL
BRING A BETTER CHANCE OF A FEW AFTERNOON THUNDERSTORMS IN THE FIRE AREA
...WITH A COOLING TREND TOWARD THE END OF THE WEEK AND THE NEXT DECENT
CHANCE OF PRECIPITATION ON THE FIRE ON OR ABOUT FRIDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. AFTERNOON CUMULUS BUILD UPS.
CWR.................5 PERCENT.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH IN THE MORNING BECOMING
                    UPSLOPE/UPVALLEY 3 TO 6 MPH AFTER 11 AM.
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 4000
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 8 MPH.
LAL.................1.
HAINES INDEX........3 LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........45 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY BELOW 5000 FEET...NORTHEAST
                    5 MPH ABOVE 5000 FEET.
MIXING HEIGHT.......4500 FT AGL IN THE EVENING...BECOMING NEAR
                    SURFACE OVERNIGHT.
TRANSPORT WINDS.....NORTH 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........2 VERY LOW.

.MONDAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY. SLIGHT CHANCE
                    OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........BELOW 5000 FEET UPSLOPE/UPVALLEY 3 TO 5 MPH...ABOVE
                    5000 FEET SOUTHWEST WINDS 5 TO 6 MPH. GUSTY AND
                    ERRATIC WINDS POSSIBLE NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 5000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 8 TO 12 MPH.
LAL.................2.
HAINES INDEX........3 LOW.

$$
FORECASTER...MF
REQUESTED BY...CWICC
TYPE OF REQUEST...WILDFIRE
.TAG 20090830.SABLE.01/OTX