FNUS76 KSTO 150037
FWSSTO

SPOT FORECAST FOR LAKE FRANCIS WF...YUBA CO SHERIFF
NATIONAL WEATHER SERVICE SACRAMENTO CA
537 PM PDT FRI AUG 14 2009

#197-09

FORECAST IS BASED ON IGNITION TIME OF 1725 PDT ON AUGUST 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...UPPER LEVEL TROUGH WILL BE MOVING OVER THE FIRE SITE
TONIGHT AND INTO NEVADA ON SATURDAY. THE TROUGH BROUGHT COOLER
TEMPERATURES AND SLIGHTLY HIGHER HUMIDITY LEVELS TO THE FIRE SITE
TODAY...AND TYPICAL UPSLOPE WINDS. AS THE TROUGH MOVES EAST OF THE
FIRE SITE LATER TONIGHT AND EARLY SATURDAY...WINDS WILL TURN
DOWNSLOPE OR NORTHEAST AFTER MIDNIGHT AND INTO SATURDAY MORNING.
WARMER AND SLIGHTLY DRIER WEATHER CONDITIONS ARE EXPECTED ON
SATURDAY AND THERE WILL BE LESS HUMIDITY RECOVERY TONIGHT. WINDS
WILL GRADUALLY TURN UPSLOPE AGAIN DURING THE DAY ON SATURDAY.


.TONIGHT...

SKY/WEATHER.........AREAS OF SMOKE...CLEAR SKIES ABOVE.
MIN TEMPERATURE.....59-64.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST 4 TO 8 MPH WITH GUSTS 10 TO 15 MPH
                    THIS EVENING...BECOMING NORTHEAST 4 TO 8 MPH
                    AFTER MIDNIGHT.
   RIDGETOP.........WEST TO NORTHWEST 10 TO 15 MPH BECOMING NORTH
                    TO NORTHEAST 5 TO 10 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......LOWERING TO GROUND LEVEL.
MIXING WINDS........WEST TO NORTHWEST 5 TO 10 MPH BECOMING
                    VARIABLE LESS THAN 5 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY SKIES. AREAS OF SMOKE.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........12-17 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHEAST 4 TO 8 MPH BECOMING WEST TO
                    NORTHWEST 5 TO 10 MPH IN THE AFTERNOON.
   RIDGETOP.........NORTH 5 TO 10 MPH BECOMING NORTHWEST 10 TO
                    15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......RISING TO 8000 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 10 MPH.


FORECASTER...JHM
REQUESTED BY...GWENDA
REASON FOR REQUEST...WILD FIRE
.TAG 20090814.LAKEF.01/STO

$$