FNUS76 KSTO 150459
FWSSTO

SPOT FORECAST FOR IRON TRAP RX...USFS, ELDORADO NF
NATIONAL WEATHER SERVICE SACRAMENTO CA
959 PM PDT THU OCT 14 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON OCTOBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

#291-10

.DISCUSSION...BURN AREA WILL REMAIN UNDER WEAKENING HIGH PRESSURE
OVER THE NEXT COUPLE OF DAYS AS UPPER RIDGE SHIFTS SLOWLY EASTWARD.
THIS WILL BRING A GRADUAL COOLING TREND WITH SOME INCREASE IN RH.
GENERAL WINDS WILL CONTINUE THE PATTERN OF MAINLY EASTERLY AT NIGHT
TRANSITIONING TO MAINLY WESTERLY IN THE AFTERNOON. UPPER LEVEL WINDS
WILL INCREASE SLIGHTLY SATURDAY AS UPPER RIDGE MOVES EASTWARD AHEAD OF
APPROACHING OFFSHORE TROUGH OF LOW PRESSURE BUT LOWER ELEVATION SLOPE
WINDS WILL LIKELY REMAIN LOCALLY DOMINATED. THE WEAKENING UPPER LEVEL
HIGH PRESSURE RIDGE WILL ALLOW SCATTERED CLOUDS TO MOVE THROUGH THE
AREA FROM TIME TO TIME FRIDAY AND SATURDAY. THE WEATHER SYSTEM IS
FORECAST TO MOVE INTO SOUTH CENTRAL CALIF ON SUNDAY BRINGING A THREAT
OF SHOWERS OR THUNDERSTORMS TO THE BURN AREA THROUGH MONDAY. DRIER
CONDITIONS ARE EXPECTED TUESDAY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....DOWNSLOPE DOWNCANYON 1 TO 4 MPH BECOMING UPSLOPE
                    TO UPCANYON 2-5 MPH AFTER ABOUT 1000 WITH
                    GUSTS TO 12 MPH IN THE AFTERNOON.
   RIDGETOP.........EAST 1-4 MPH IN THE MORNING GUSTS TO 6 MPH
                    TURNING SOUTHWEST TO WEST AFTER ABOUT 1000
                    2-5 MPH WITH GUST TO 10 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......INCREASING TO 8000-9000 FT AGL
                    LATE IN THE MORNING AND IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST 10-15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....46-51.
MAX HUMIDITY........70-77 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....BECOMING DOWNSLOPE TO DOWNCANYON 1 TO 4 MPH
                    AFTER SUNSET.
   RIDGETOP.........TURNING EAST 2-4 GUSTS TO 6 MPH AFTER ABOUT 2100.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......DROPPING TO BELOW 500 FEET AFTER SUNSET.
MIXING WINDS........SOUTHERLY 5-10 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........26-33 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....BECOMING UPSLOPE UPCANYON 2-5 MPH AFTER ABOUT
                    1000 WITH WESTERLY GUSTS TO 12 MPH IN THE AFTERNOON.
   RIDGETOP.........BECOMING SOUTHWEST TO WEST 3-6 MPH AFTER
                    ABOUT 1000 WITH GUSTS TO 12 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......INCREASING TO 9000-10000 FT AGL LATE
                    IN THE MORNING AND IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST 10-12 MPH.

SUNDAY...MOSTLY CLOUDY WITH A SLIGHT THREAT OF SHOWERS OR AFTERNOON
THUNDERSTORMS. HIGHS 50-60. VARIABLE MAINLY SOUTHEAST WINDS TO 10 MPH.

MONDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS 55-60.
VARIABLE MAINLY NORTHEAST WINDS TO 10 MPH.

TUESDAY...PARTLY CLOUDY. HIGHS 60 TO 65. VARIABLE MAINLY NORTHERLY WINDS
TO 10 MPH.



FORECASTER...SMITH
REQUESTED BY...AMY REID
REASON FOR REQUEST...PRESCRIBED
.TAG 20101015.IRONT.01/STO

$$