FNUS76 KSTO 221346
FWSSTO

SPOT FORECAST FOR WHEATS...USFS
NATIONAL WEATHER SERVICE SACRAMENTO CA
646 AM PDT WED AUG 22 2012

FORECAST IS BASED ON REQUEST TIME OF 1523 PDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SHOWERS AND ISOLATED THUNDERSTORMS ARE IMPACTING THE SIERRA CREST
AROUND 7000 FT AND ABOVE JUST EAST AND SOUTHEAST OF THE
WILDFIRE THIS MORNING. SHOWERS ARE ASSOCIATED WITH AN UPPER LOW AND
ARE CURRENTLY MOVING NORTHWARD ALONG THE CREST. THEY MAY BRUSH THE
UPPER ELEVATION OF THE WILDFIRE SITE WITH BRIEF LIGHT RAIN BUT
WETTING RAIN IS NOT EXPECTED. LIGHTNING STRIKES ARE WELL SOUTH ALONG
THE CREST SO LITTLE CONCERN THAT THEY WILL BE NEAR THE WILDFIRE. THE
UPPER LOW IS FORECAST TO TRACK EASTWARD TODAY WHICH WILL PUSH THE
SHOWERS TOWARDS THE GREAT BASIN IN NEVADA AND AWAY FROM WILDFIRE SITE
THIS AFTERNOON. LIGHT S TO SE WINDS AT WILDFIRE THIS MORNING BECOMING
WESTERLY THIS AFTERNOON WITH LOCAL MODERATE GUSTS POSSIBLE. WINDS
INCREASE SLIGHTLY ON THURSDAY WITH WEST TO SOUTHWEST FLOW ALOFT AS
ANOTHER UPPER LOW MOVES INLAND AND BRUSHES NORCAL.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....LIGHT WINDS BECOMING WEST 6 TO 11 MPH WITH
                    LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
   RIDGETOP.........LIGHT WINDS BECOMING WEST AROUND 10 TO
                    15 MPH.
CWR.................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......1100-1500 FT AGL INCREASING TO 8600-9300 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........WEST AROUND 12 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....51-56.
MAX HUMIDITY........61-66 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....WEST WINDS 5 TO 10 MPH SHIFTING TO THE EAST UP
                    TO 5 MPH AFTER MIDNIGHT.
   RIDGETOP.........NORTH TO NORTHWEST 5 TO 10 MPH.
CWR.................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......8800 FT AGL DECREASING TO 400-500 FT AGL.
MIXING WINDS........NORTH 5 MPH.

.THURSDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....LIGHT WINDS BECOMING WEST 7 TO 12 MPH IN THE
                    AFTERNOON WITH LOCAL GUSTS UP TO 17 MPH
                    POSSIBLE.
   RIDGETOP.........LIGHT WINDS BECOMING WEST AROUND 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500-1200 FT AGL INCREASING TO 6900-7700 FT AGL
                    LATE IN THE MORNING...THEN DECREASING TO 5700
                    FT AGL LATE IN THE AFTERNOON.
MIXING WINDS........WEST 5 TO 10 MPH.


FORECASTER...JBB
REQUESTED BY...JOHN LOMBRANA
REASON FOR REQUEST...WILDFIRE
.TAG 20120821.WHEAT.01/STO

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