FNUS71 KAKQ 041158
FWSAKQ

SPOT FORECAST FOR BIG WOODS SITE PREP...THE NATURE CONSERVANCY
NATIONAL WEATHER SERVICE WAKEFIELD VA
758 AM EDT SAT APR 4 2009

FORECAST IS BASED ON IGNITION TIME OF 1400 EDT ON APRIL 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...BECOMING VERY DRY WITH GUSTY WEST WINDS TODAY...

A STRONG PRESSURE GRADIENT BETWEEN LOW PRESSURE IN NEW ENGLAND AND
HIGH PRESSURE OVER THE TENNESSEE VALLEY WILL CREATE GUSTY WEST
WINDS THROUGH THE MID AFTERNOON HOURS ALONG WITH VERY DRY
CONDITIONS. WINDS SUBSIDE BY EARLY EVENING AS HIGH PRESSURE SLOWLY
BUILDS OVER THE SOUTHEAST STATES. ANOTHER LOW PRESSURE SYSTEM
MOVE NORTHEAST ACROSS THE OHIO VALLEY SUNDAY NIGHT AND MONDAY. THE
ASSOCIATED WARM FRONT LIFTS NORTH ACROSS THE REGION SUNDAY NIGHT
WITH THE TRAILING COLD FRONT CROSSING THE AREA MONDAY.

.TODAY...

SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........22 PERCENT.
WIND (20FT/2MIN)....WEST WINDS 12 TO 16 MPH. GUSTS UP TO 28 MPH
                    THROUGH MID AFTERNOON.
MIXING HEIGHT.......4700-5600 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 24 MPH.
VENTILATION RATE....GOOD (63800-106800 FT-MPH).

TIME (EDT)      2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM
SKY (%).........0   0   0   0   0   0   0   0   0   0   0   0
WEATHER COV.....
WEATHER TYPE....
TEMP............67  68  70  70  67  64  59  56  53  50  48  46
RH..............27  24  23  22  24  31  40  49  57  68  71  73
20 FT WIND DIR..W   W   W   W   W   W   W   W   W   W   W   W
20 FT WIND SPD..14  14  14  12  11  8   8   8   8   8   8   7
20 FT WIND GUST.25  24  21  18  15  12  10  10  10  10  10  10
MIX HGT (KFT)...4.9 5.0 5.3 5.6 4.7 2.0 0.3 0.3 0.3 0.3 0.3 0.3
MIXNG WIND DIR..W   W   W   W   W   W   W   W   W   W   W   NW
MIXNG WIND SPD..23  22  22  22  20  15  12  9   8   8   9   9

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........79 PERCENT.
WIND (20FT/2MIN)....WEST WINDS 5 TO 10 MPH...BECOMING LIGHT.
MIXING HEIGHT.......2000-3800 FT AGL...DECREASING TO 300 FT AGL
                    EARLY IN THE EVENING.
TRANSPORT WINDS.....WEST 12 TO 20 MPH...DECREASING TO 3 TO 10 MPH
                    IN THE LATE EVENING AND OVERNIGHT.
VENTILATION RATE....GOOD (63300 FT-MPH)...DECREASING TO VERY POOR (800-2500
                    FT-MPH) BY LATE EVENING.

.SUNDAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........32 PERCENT.
WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTH 6 TO 9 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......300-2000 FT AGL...INCREASING TO 2900-4500 FT
                    AGL LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTHWEST 2 TO 10 MPH...INCREASING TO 14 TO 17
                    MPH EARLY IN THE AFTERNOON.
VENTILATION RATE....VERY POOR TO POOR (500-36200
                    FT-MPH)...INCREASING TO FAIR TO GOOD
                    (52100-68000 FT-MPH) EARLY IN THE AFTERNOON.



FORECASTER...BROWN
REQUESTED BY...BOBBY CLONTZ
TYPE OF REQUEST...PRESCRIBED
.TAG 20090404.BIGWO.01/AKQ