FNUS76 KSTO 271541
FWSSTO

SPOT FORECAST FOR SAC T-1 6 RX...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
841 AM PDT THU SEP 27 2012

FORECAST IS BASED ON IGNITION TIME OF 1030 PDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

MINOR UPDATE TO WINDS.

.DISCUSSION...
DRY AND VERY WARM WEATHER WILL CONTINUE AS HIGH PRESSURE WILL
DOMINATE THE WEATHER OVER THE FIRE SITE. WINDS WILL BE FAIRLY
LIGHT AND DIURNALLY DRIVEN AND BECOME UPVALLEY DURING THE
AFTERNOONS WITH SOME GUSTS. THE MIXING HEIGHT IS FORECAST TO BE
GREATER OR HIGHER ON FRIDAY.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........70-73 AT IGNITION.
x09x09    91-95 AFTERNOON MAX.
HUMIDITY............50-55 PERCENT AT IGNITION.
x09x09    20-24 PERCENT AFTERNOON MIN.
WIND (20 FT)........
   SLOPE/VALLEY.....VARIABLE UP TO 3 MPH SHIFTING TO THE SOUTHEAST
x09x09    2 TO 4 MPH AFTER 1100, THEN INCREASING TO 5 TO
x09x09    7 MPH WITH GUSTS TO 11 IN THE AFTERNOON.
MIXING HEIGHT.......200-300 FT AGL INCREASING TO 6000-7000 FT AGL.
MIXING WINDS........LIGHT WINDS BECOMING SOUTHEAST UP TO 5 MPH IN
x09x09    THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....59-63.
MAX HUMIDITY........65-70 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST WINDS 4 TO 7 MPH SHIFTING TO THE
                    NORTHWEST 4 TO 7 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL DECREASING TO 100-300 FT AGL EARLY
                    IN THE EVENING.
MIXING WINDS........VARIABLE 2 TO 4 MPH.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....91-95.
MIN HUMIDITY........18-22 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHWEST WINDS UP TO 6 MPH IN THE MORNING BECOMING
                    SOUTHEAST.
MIXING HEIGHT.......100-200 FT AGL INCREASING TO 10000 FT AGL.
MIXING WINDS........NORTHWEST WINDS UP TO 5 MPH BECOMING SOUTHEAST UP
x09x09    TO 5 MPH IN THE AFTERNOON.


FORECASTER...JCLAPP
REQUESTED BY...COLBY SMITH
REASON FOR REQUEST...PRESCRIBED
.TAG 20120927.SACT1.01/STO

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