FNUS76 KSGX 281844
FWSSGX

SPOT FORECAST FOR MEADOW...CNF DESC
NATIONAL WEATHER SERVICE SAN DIEGO CA
1144 AM PDT THU MAY 28 2009

FORECAST IS BASED ON IGNITION TIME OF 1155 PDT ON MAY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK UPPER TROUGH WILL MAKE THE AIR MASS UNSTABLE ENOUGH FOR
THUNDERSTORMS TO FORM DURING THE AFTERNOON HOURS THROUGH FRIDAY.
THE PREVAILING WIND FLOW WILL MOVE THESE THUNDERSTORMS TOWARDS THE
NORTHWEST. LITTLE IF ANY PRECIPITATION IS LIKELY TO REACH THE
GROUND...BUT DOWNDRAFT WINDS BETWEEN 40 TO 50 MPH ARE POSSIBLE.
DURING THE LATE AFTERNOON AND EARLY HOURS...WEST WINDS SHOULD PUSH
THE THUNDERSTORMS WELL EAST OF THE INCIDENT. DURING LATE NIGHT
THROUGH EARLY MORNING HOURS WATCH OUT FOR FALLING RELATIVE
HUMIDITY...WITH LOWEST VALUES AROUND 15 PERCENT.

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SPRINKLES AND
                    THUNDERSTORMS. DRY LIGHTNING POSSIBLE.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........15 PERCENT...OCCURRING IN THE EARLY MORNING HOURS.
WIND................
   SLOPES...........UPSLOPE 3 TO 6 MPH...EXCEPT GUSTS TO 50 MPH
                    POSSIBLE FROM THUNDERSTORM DOWNDRAFT'S.
   RIDGETOP.........SOUTHEAST 10 MPH.
CHC WETTING RAIN....5 PERCENT.
LAL.................6.
MIXING HEIGHT.......12500 FT AGL...BECOMING
                    1000 FT AGL AFTER 1700 PDT.
MIXING WINDS........SOUTHEAST 10 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........55 PERCENT OCCURRING IN THE EVENING HOURS THEN
                    DRYING AFTER MIDNIGHT WITH RELATIVE HUMIDITY
                    LOWERING TO 15 PERCENT.
WIND................
   SLOPES...........WINDS WEST 5 MPH IN THE EVENING BECOMING LIGHT.
   RIDGETOP.........SOUTHEAST 10 MPH.
CHC WETTING RAIN....0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500-1000 FT AGL.
MIXING WINDS........SOUTHWEST 10 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
                    SLIGHT CHANCE OF THUNDERSTORMS WITH DRY LIGHTNING
                    IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........15 PERCENT...OCCURRING DURING THE EARLY MORNING.
WIND................
   SLOPES...........WINDS EAST 5 MPH...EXCEPT GUSTS TO 40 MPH
                    POSSIBLE IN THUNDERSTORM DOWNDRAFT'S.
   RIDGETOP.........SOUTHEAST 15 MPH.
CHC WETTING RAIN....5 PERCENT.
LAL.................1 BECOMING 6 BETWEEN 1100-1700 PDT.
MIXING HEIGHT.......500 FT AGL...BECOMING 8000 FT AGL BY 1000 PDT
                    THEN LOWERING BACK TO 500 FT AGL AFTER 1700 PDT.
MIXING WINDS........SOUTHEAST 10 MPH.

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...JIM HUSTON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090528.MEADO.01/SGX