FNUS76 KSTO 291859
FWSSTO

SPOT FORECAST FOR KNIGHT...US FOREST SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
1159 AM PDT WED JUL 29 2009

FORECAST IS BASED ON REQUEST TIME OF 1100 PDT ON JULY 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

#146-09

.DISCUSSION...
INSTABILITY OVER THE AREA WILL LEAD TO A SLIGHT CHANCE OF A THUNDERSTORM
THIS AFTERNOON INTO EARLY EVENING. THE THREAT TOMORROW SHIFTS MORE EAST
TO HIGHER TERRAIN. WIND WILL GENERALLY BE LIGHT AND TERRAIN DRIVEN. A LOW
PRESSURE SYSTEM APPROACHING THE AREA FRIDAY INTO THE WEEKEND WILL BRING
COOLING WITH INCREASING WIND AND POSSIBILITY OF THUNDERSTORMS.

.TODAY...

SKY/WEATHER.........BECOMING PARTLY CLOUDY WITH A SLIGHT CHANCE OF
                    SHOWERS OR THUNDERSTORMS AFTER 3 PM.
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST 4-9 MPH.
   RIDGETOP.........WEST 7-12 MPH WITH GUSTS TO 18 MPH AFTER 2 PM.
CWR.................10 PERCENT.
LAL.................1 INCREASING TO 2 AFTER 3 PM.
MIXING HEIGHT.......5000-6300 FT AGL.
MIXING WINDS........WEST AROUND 10 MPH.

.TONIGHT...

SKY/WEATHER.........A SLIGHT CHANCE OF EVENING THUNDERSTORMS...OTHERWISE
                    CLEARING.
MIN TEMPERATURE.....68-73
MAX HUMIDITY........AROUND 50-55 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST 3-8 MPH BECOMING EAST 1-3 MPH AFTER DARK.
   RIDGETOP.........WEST 7-12 MPH WITH GUSTS TO 18 MPH EARLY EVENING
                    BECOMING NORTHEAST 4-9 MPH AFTER 9 PM.
CWR.................10 PERCENT.
LAL.................2 DECREASING TO 1 AFTER DARK.
MIXING HEIGHT.......5200 FT AGL DECREASING BELOW 1000 FT AGL AFTER
                    DARK
MIXING WINDS........WEST AROUND 10 MPH BECOMING NORTHEAST AROUND 7 MPH
                    AFTER DARK.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....LIGHT WIND BECOMING SOUTHWEST 3-8 MPH AFTER 10 AM.
   RIDGETOP.........NORTHEAST AROUND 6 MPH BECOMING WEST 8-13 MPH AFTER
                    10 AM WITH GUSTS TO 20 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......INCREASING TO 3700-4400 FT AGL LATE IN THE MORNING.
MIXING WINDS........NORTHEAST AROUND 5 BECOMING WEST AROUND 10 MPH
                    AFTER 10 AM.


FORECASTER...PCH
REQUESTED BY...BYRON KIMBALL
REASON FOR REQUEST...WILDFIRE
.TAG 20090729.KNIGH.01/STO

$$