FNUS76 KSGX 210755
FWSSGX

SPOT FORECAST FOR MCCAIN VALLEY VMP...UNLISTED
NATIONAL WEATHER SERVICE SAN DIEGO CA
1155 PM PST TUE NOV 20 2012

FORECAST IS BASED ON IGNITION TIME OF 1005 PST ON NOVEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE ONSHORE PRESSURE GRADIENT WILL NOT BE STRONG ENOUGH TODAY FOR
BREEZY WESTERLY WINDS TO MAKE IT TO THE BURN SITE...AND SO LIGHT
WESTERLY WINDS DURING THE EARLY MORNING WILL GIVE WAY TO SOME
EASTERLY WINDS DURING THE LATE MORNING AND AFTERNOON HOURS.
TONIGHT...WINDS WILL LIGHTEN AND THE BURN SITE WILL EXPERIENCE A
HUMIDITY RECOVERY OF AROUND 30 TO 40 PERCENT OR SO. SURFACE HIGH
PRESSURE BUILDING OVER THE GREAT BASIN WILL BRING AN INCREASE IN
EASTERLY WINDS FOR THURSDAY...ALTHOUGH RELATIVE HUMIDITY IS NOT
EXPECTED TO DROP TOO MUCH OVER THE BURN SITE. LESS OF AN
OVERNIGHT HUMIDITY RECOVERY EXPECTED THURSDAY NIGHT. SKIES WILL
REMAIN MOSTLY CLEAR THROUGHOUT.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........20 PERCENT.
WIND................WEST 2 TO 4 MPH...BECOMING EAST-NORTHEAST 4 TO
                    8 MPH WITH GUSTS TO 13 MPH DURING THE LATE
                    MORNING AND AFTERNOON.
CHC WETTING RAIN....0 PERCENT.
MIXING HEIGHT.......500-1500 FT AGL...BECOMING 3500 FT AGL EARLY IN
                    THE AFTERNOON...THEN...BECOMING 500 FT AGL LATE
                    IN THE AFTERNOON.
MIXING WINDS........NORTHWEST 5 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........55 PERCENT.
WIND................LIGHT WINDS.
CHC WETTING RAIN....0 PERCENT.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........NORTH 5 MPH.

.THANKSGIVING DAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........20 PERCENT.
WIND................LIGHT WINDS...BECOMING EAST-NORTHEAST 6 TO 10
                    MPH WITH GUSTS TO 15 MPH DURING THE LATE MORNING
                    AND AFTERNOON.
CHC WETTING RAIN....0 PERCENT.
MIXING HEIGHT.......500 FT AGL...BECOMING 2500 FT AGL IN THE LATE
                    MORNING AND EARLY AFTERNOON...THEN...BECOMING
                    500 FT AGL LATE IN THE AFTERNOON.
MIXING WINDS........EAST 5 MPH.

$$
FORECASTER...STEPHEN HARRISON
REQUESTED BY...K ZINGHEIM
TYPE OF REQUEST...PRESCRIBED
.TAG 20121121.MCCAI.01/SGX