FNUS76 KSTO 210021
FWSSTO

SPOT FORECAST FOR SANHEDRIN...SONOMA/LAKE/NAPA UNIT
NATIONAL WEATHER SERVICE SACRAMENTO CA
521 PM PDT MON AUG 20 2012

FORECAST IS BASED ON REQUEST TIME OF 1633 PDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN APPROACHING LOW PRESSURE SYSTEM WILL COOL OFF TEMPERATURES A
LITTLE FOR TUESDAY BUT INCREASE THE WINDS FOR THE LOCATION.
WINDS WILL GENERALLY BE FROM THE SOUTHEAST TO SOUTH DIRECTION
EARLY THEN SHIFT TO THE SOUTHWEST FOR MOST OF THE DAY. THE WINDS
WILL SWITCH TO THE WEST TO NORTHWEST DIRECTION LATE IN THE AFTERNOON.
HUMIDITIES WILL ONLY BE A FEW PERCENT HIGHER ON TUESDAY WITH POOR
RECOVERIES OVERNIGHT.


.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....60-65.
MAX HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....WEST WINDS 4 TO 8 MPH WITH GUSTS TO 20 MPH DECREASING
                    AFTER 8 PM. WINDS BECOMING SOUTHEAST AT 2 TO 4 MPH
                    AFTER 3 AM.
   RIDGETOP.........NORTHWEST 5 MPH...BECOMING VARIABLE AFTER MIDNIGHT.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......4200 FT AGL DECREASING TO 200-1000 FT AGL EARLY
                    IN THE EVENING.
MIXING WINDS........NORTHWEST 5 MPH.

.TUESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........14-17 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST EARLY AT 2 TO 4 MPH SHIFTING SOUTHWEST AT
                    4 TO 8 MPH BY AFTERNOON WITH AFTERNOON
                    GUSTS TO 18 MPH...SHIFTING WEST TO NORTHWEST LATE
                    IN THE DAY AND FOR THE EVENING WITH GUSTS TO 22 MPH.
   RIDGETOP.........SOUTHWEST AT 5 TO 10 MPH WITH GUSTS TO 25 MPH.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......200-300 FT AGL INCREASING TO 4100 FT AGL LATE
                    IN THE MORNING...THEN INCREASING TO 6900 FT AGL
                    EARLY IN THE AFTERNOON.
MIXING WINDS........LIGHT WINDS.


FORECASTER...RB
REQUESTED BY...MNFECC DISPATCH
REASON FOR REQUEST...WILDFIRE
.TAG 20120820.SANHE.01/STO

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