FNUS76 KSTO 312136
FWSSTO

SPOT FORECAST FOR PONDEROSA FIRE 12CATGU006696...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
236 PM PDT FRI AUG 31 2012

FORECAST IS BASED ON REQUEST TIME OF 1321 PDT ON AUGUST 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK TROUGH OF LOW PRESSURE OVER THE EASTERN PACIFIC
WILL BRING SIMILAR TEMPERATURES AND HUMIDITY LEVELS TO THE FIRE
SITE FOR SATURDAY. RIDGES WILL SEE AN INCREASING SATURDAY
AFTERNOON/EVENING SOUTHWEST BREEZE AS THE TROUGH GRADUALLY MOVES
INLAND. THE TROUGH WILL MOVE TO THE NORTHEAST SATURDAY NIGHT AND SUNDAY
WITH HIGHER PRESSURE BRINGING WARMER TEMPERATURES AND LOWER RH
INTO THE MIDDLE OF NEXT WEEK. HUMIDITY RECOVERIES WILL DECREASE
SOME BY SUNDAY MORNING AND DROP MORE BY MONDAY MORNING.

.SATURDAY...

SKY/WEATHER.........SUNNY. AREAS OF SMOKE.
MAX TEMPERATURE.....83-88.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST WINDS 4 TO 8 MPH.
   RIDGETOP.........SOUTHEAST 3 TO 6 MPH SHIFTING TO THE SOUTHWEST
                    AND INCREASING TO 5 TO 11 MPH
                    WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 7000 FT AGL LATE IN THE
                    MORNING.
MIXING WINDS........SOUTHWEST 8 TO 12 MPH.

.SATURDAY NIGHT...

SKY/WEATHER.........CLEAR. AREAS OF SMOKE.
MIN TEMPERATURE.....52-60.
MAX HUMIDITY........32-40 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST WINDS 5 TO 10 MPH IN THE EARLY EVENING
                    BECOMING SOUTHWEST 2 TO 4 MPH.
   RIDGETOP.........SOUTH 6 TO 11 MPH WITH LOCAL GUSTS UP TO 20 MPH
                    IN THE EARLY EVENING BECOMING SOUTHEAST 2 TO 5 MPH.
MIXING HEIGHT.......6000 FT AGL DECREASING TO NEAR GROUND LEVEL EARLY
                    IN THE EVENING.
MIXING WINDS........SOUTH 6 TO 9 MPH.


FORECASTER...EK
REQUESTED BY...ROB DAUGHERTY  SITL
REASON FOR REQUEST...WILDFIRE
.TAG 20120831.PONDE.01/STO

$$