FNUS76 KSTO 201646
FWSSTO

SPOT FORECAST FOR H-1...USFS
NATIONAL WEATHER SERVICE SACRAMENTO CA
946 AM PDT TUE AUG 20 2013

FORECAST IS BASED ON REQUEST TIME OF 0913 PDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 5 AM PDT THURSDAY...

.DISCUSSION...
UPPER LOW PRESSURE OFF THE CALIFORNIA COAST WILL KEEP A THREAT OF
THUNDERSTORMS OVER THE AREA THROUGH THURSDAY. ABUNDANT LIGHTNING
AND GUSTY WIND IS POSSIBLE WITH STRONGER STORMS. MOST ACTIVE TIME
PERIOD WILL BE IN THE AFTERNOONS AND EVENINGS BUT THE POTENTIAL
EXISTS FOR THUNDERSTORMS AT ANY TIME. GRADUAL COOLING TREND WITH
INCREASING HUMIDITY FORECAST THROUGH MIDWEEK.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....93-98.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST 5 TO 10 MPH BECOMING NORTHWEST
                    8 TO 12 WITH LOCAL GUSTS TO 20 MPH DURING
                    THE AFTERNOON.
   RIDGETOP.........NORTHWEST 5 TO 10 MPH.
CWR.................50 PERCENT.
LAL.................3.
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 10500 FT AGL.
MIXING WINDS........LIGHT WINDS.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
                    THUNDERSTORMS.
MIN TEMPERATURE.....56-61.
MAX HUMIDITY........75-80 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHWEST WINDS UP 3 TO 6 MPH IN THE EVENING
                    BECOMING SOUTHEAST 3 TO 6 MPH.
   RIDGETOP.........SOUTHEAST 5 MPH.
CWR.................40 PERCENT.
LAL.................3.
MIXING HEIGHT.......10500 FT AGL DECREASING TO 400-600 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....92-97.
MIN HUMIDITY........18-22 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST 5 TO 10 MPH BECOMING NORTHWEST
                    4 TO 8 WITH LOCAL GUSTS TO 15 MPH DURING
                    THE AFTERNOON.
   RIDGETOP.........NORTHWEST 3 TO 6 MPH.
CWR.................50 PERCENT.
LAL.................4.
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 10500 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.


FORECASTER...
REQUESTED BY...KARL BRIGGS
REASON FOR REQUEST...WILDFIRE
.TAG 20130820.H1___.01/STO

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