FNUS76 KSTO 270218
FWSSTO

SPOT FORECAST FOR CONCOW...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
718 PM PDT WED SEP 26 2012

FORECAST IS BASED ON IGNITION TIME OF 1825 PDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
DRY AND VERY WARM WEATHER WILL CONTINUE AS HIGH PRESSURE WILL
DOMINATE THE WEATHER OVER THE FIRE SITE. WINDS WILL BE MAINLY
TERRAIN DRIVEN OR UPSLOPE DURING THE AFTERNOON.

THE NEARBY JARBO GAP RAWS (ABOUT 2 MILES AWAY) INDICATED DOWNSLOPE
OR NORTHEAST WINDS FROM 13 MPH WITH GUSTS TO 27 MPH FROM AFTER
MIDNIGHT THROUGH MID MORNING. THESE WINDS CERTAINLY COULD HAVE
IMPACTED THE FIRE SITE NEARBY. THE WINDS BEGAN TO SHIFT FROM
SOUTHWEST TO NORTHEAST AFTER 7 TO 8 PM. THE WINDS WERE LIKELY
AFFECTED BY THE NORTHERLY FLOW ON THE BACKSIDE OF THE UPPER LOW
MOVING EASTWARD ACROSS THE GREAT BASIN. THE LOW WILL BE MOVING
FARTHER AWAY TONIGHT...AND SHOULD HAVE LESS IMPACT ON THE STRENGTH
OF THE WIND. BUT...LOOKING AT THE PAST WEEK OR TWO OF WIND DATA AT
JARBO GAP...THESE NORTHEAST WINDS AT NIGHT ARE COMMON AND OFTEN HAVE
SUSTAINED SPEEDS IN THE TEENS DURING THE NIGHT. CALL THEM LOCAL
"SUNDOWNER" WINDS IF YOU WOULD LIKE. SIMILAR CONDITIONS ARE EXPECTED
AGAIN TONIGHT. SINCE THE FIRE SITE IS UNSHELTERED...THESE
"SUNDOWNER" WINDS WILL BE FELT MORE OFTEN THAN NOT DURING WITH THE
CURRENT WEATHER PATTERN.


.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....63-69.
MAX HUMIDITY........43-48 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST WINDS LESS THAN 5 MPH EARLY THIS
                    EVENING BECOMING NORTHEAST 8 TO 15 MPH BY
                    8 PM OR 9 PM. LOCAL GUSTS TO 25 MPH.
   RIDGETOP.........GUSTY NORTHEAST WINDS 15 TO 25 MPH.

.THURSDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....86-91.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHEAST WINDS 4 TO 7 MPH WITH GUSTS TO
                    15 MPH THROUGH MID-MORNING...THEN SHIFTING
                    TO THE SOUTHWEST UP TO 6 MPH IN THE AFTERNOON.
   RIDGETOP.........SOUTHEAST 6 MPH IN THE MORNING...THEN
                    SOUTHWEST 6 TO 12 MPH IN THE AFTERNOON.


FORECASTER...JHM
REQUESTED BY...JOE TAPIA
REASON FOR REQUEST...PRESCRIBED
.TAG 20120926.CONCO.01/STO

$$