FNUS76 KLOX 151304
FWSLOX

SPOT FORECAST FOR RANCHO 18...LAC
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
604 AM PDT WED JUN 15 2011

FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON JUNE 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE ALOFT WILL BEGIN TO BREAKDOWN TODAY.
THIS WILL CAUSE THE MARINE LAYER TO DEEPEN JUST ENOUGH TO AFFECT
PORTIONS OF SANTA CLARITA VALLEY THIS MORNING. IF DENSE FOG DOES
OCCUR...IT WILL BURN OFF BY 0900 HOURS. EXPECT CONTINUED VERY WARM
TEMRPERATURES THIS AFTERNOON WITH HIGHS IN THE UPPER 80S TO AROUND
90. RELATIVE HUMIDITY LEVELS WILL REMAIN WELL ABOVE CRITICAL
LEVELS TODAY. BY TONIGHT INTO THURSDAY...A DEEPER MARINE LAYER
TO AROUND 3000 FEET WILL REACH ALL OF THE SANTA CLARITA VALLEY.
THIS WILL TRANSLATE INTO AREAS OF LOW CLOUDS AND PATCHY FOG
THROUGH MID MORNING...THEN BURNOFF BY THE AFTERNOON. TEMPERATURES
WILL LOWER SIGNIFICANTLY THURSDAY AND FRIDAY...WITH GOOD RELATIVE
HUMIDITY RECOVERIES EXPECTED. THERE WILL BE SOME GUSTY WINDS
THROUGH THE PASSES ON THURSDAY AND FRIDAY AFTERNOONS AS WELL.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY AFTER PATCHY LOW CLOUDS AND DENSE
                    FOG IN THE MORNING.
TEMPERATURE.........68-71 AT IGNITION...MAX 89.
RH..................68 PERCENT AT IGNITION...MIN 38 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......AT IGNITION...LIGHT WINDS BECOMING SOUTHWEST 6
                    TO 10 MPH BY 10 AM AND INCREASING TO 10 TO 15
                    MPH WITH GUSTS TO 20 MPH BY 1 PM.
 RIDGETOP...........AT IGNITION...VARIABLE WINDS 3 TO 8 MPH BECOMING
                    SOUTHWEST 8 TO 13 MPH BY 10 AM AND INCREASING
                    TO 10 TO 20 MPH WITH GUSTS TO 25 MPH BY 1 PM.
MIXING HEIGHT.......800 FT AGL AT IGNITION...TO 3000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 3 MPH SHIFTING TO THE SOUTHWEST 10
                    MPH IN THE AFTERNOON.
EYE LEVEL WINDS.....AT IGNITION...LIGHT WINDS BECOMING SOUTHWEST
                    3 TO 6 MPH BY 10 AM AND INCREASING TO 6 TO 10
                    MPH WITH GUSTS TO 13 MPH IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLEAR THEN BECOMING CLOUDY. PATCHY FOG EARLY IN
                    THE MORNING.
TEMPERATURE.........MIN 53.
RH..................MAX 100 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 8 TO 15 MPH IN THE EVENING
                    BECOMING VARIABLE 3 TO 8 MPH AFTER MIDNIGHT.
 RIDGETOP...........SOUTHWEST WINDS 10 TO 20 MPH LOWERING TO 8 TO 12
                    MPH AFTER 8 PM AND VARIABLE 3 TO 8 MPH AFTER
                    MIDNIGHT.
MIXING HEIGHT.......2500 FT AGL DECREASING TO 500-800 FT AGL
                    OVERNIGHT.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
                    BECOMING LIGHT AFTER MIDNIGHT.

$$
FORECASTER...KAPLAN/SWEET
REQUESTED BY...LARRY TUCKER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110615.RANCH.01/LOX