FNUS71 KAKQ 031707
FWSAKQ

SPOT FORECAST FOR CHAPPELL...VDOF
NATIONAL WEATHER SERVICE WAKEFIELD VA
107 PM EDT MON AUG 3 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON AUGUST 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A COLD FRONT SLIDES OFFSHORE THROUGH TONIGHT. HIGH PRESSURE
BUILDS IN FROM THE WEST TODAY...THEN MERGES WITH HIGH PRESSURE
OFF THE EAST COAST FOR TUESDAY THROUGH WEDNESDAY. ANOTHER COLD
FRONT PUSHES INTO THE REGION FROM THE LATE WEDNESDAY INTO
THURSDAY...THEN LAYS ACROSS THE AREA THURSDAY NIGHT THROUGH
FRIDAY.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........93 PERCENT.
WIND (20FT/2MIN)....SOUTHWEST WINDS 5 TO 6 MPH IN THE
                    EVENING...BECOMING LIGHT.
MIXING HEIGHT.......4900 FT AGL...DECREASING TO 300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 15 MPH...DECREASING TO 3 TO 5
                    MPH LATE IN THE EVENING.
VENTILATION RATE....VERY POOR TO GOOD (32900-62000
                    FT-MPH)...DECREASING TO VERY POOR (800-3000
                    FT-MPH) EARLY IN THE EVENING.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........39 PERCENT.
WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTHWEST 5 TO 9 MPH IN
                    THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......300-2100 FT AGL...INCREASING TO 8700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 2 TO 10 MPH.
VENTILATION RATE....VERY POOR TO POOR (400-38900
                    FT-MPH)...INCREASING TO FAIR TO GOOD
                    (52700-76400 FT-MPH) IN THE AFTERNOON.



FORECASTER...WAMSLEY
REQUESTED BY...CONLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 20090804.CHAPP.01/AKQ