FNUS76 KSTO 251223
FWSSTO

SPOT FORECAST FOR SAC  HEADQUARTERS PILE...U.S FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
523 AM PDT TUE AUG 25 2009

#222-09

FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW PRESSURE SYSTEM PASSING WELL NORTH OF THE BURN
SITE ALLOWING HIGH PRESSURE TO BUILD SLIGHTLY OVER THE AREA TODAY.
THE WILL WEAKEN THE DELTA BREEZE AND UP VALLEY FLOW FROM YESTERDAY
RESULTING IN SLIGHTLY WARMER TEMPERATURES AND A LITTLE LESS WIND.

NOTE...THE DIFFERENCE IN WIND SPEED FROM THE SITE OBSERVATIONS AND
THE SAC NWR RAWS YESTERDAY WAS PROBABLY DUE TO THE DIFFERENCE
BETWEEN 20 FOOT WINDS AND EYE LEVEL WINDS. THIS FORECAST IS BASED
ON 20 FOOT WINDS WHICH WILL GENERALLY BE A LITTLE HIGHER THAN EYE
LEVEL WINDS.


.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....91-95.
MIN HUMIDITY........10-16 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NEARLY CALM WINDS EARLY THIS MORNING...BECOMING
                    SOUTHEAST TO SOUTH 4 TO 9 MPH THIS AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......RISING TO 7000 FT AGL.
MIXING WINDS........SOUTHEAST LESS THEN 5 MPH THIS MORNING BECOMING
                    SOUTH TO SOUTHWEST AT 5 MPH THIS AFTERNOON.


FORECASTER...JHM
REQUESTED BY...ANTHONY ARENDT
REASON FOR REQUEST...PRESCRIBED
.TAG 20090825.SACHE.01/STO

$$