FNUS71 KAKQ 161034
FWSAKQ

SPOT FORECAST FOR B POOL...US FWS
NATIONAL WEATHER SERVICE WAKEFIELD VA
634 AM EDT FRI APR 16 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON APRIL 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL DRIFT SOUTH OF THE AREA TODAY. A COLD FRONT
WILL DROP ACROSS THE AREA DURING THE MID MORNING HOURS ON
SATURDAY. THE FRONT WILL BE ACCOMPANIED BY LITTLE IF ANY
RAINFALL...AND THE AIRMASS BEHIND THE FRONT WILL BE DRY WITH LOW
RELATIVE HUMIDITY VALUES EXPECTED SATURDAY AFTERNOON DESPITE
COOLER TEMPERATURES. ANOTHER HIGH PRESSURE AREA WILL GRADUALLY
BUILD IN FROM THE NORTHWEST SUNDAY NIGHT THROUGH TUESDAY.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........34 PERCENT.
WIND (20FT/2MIN)....WEST WINDS 10 TO 13 MPH.
MIXING HEIGHT.......300-700 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 17 MPH.
VENTILATION RATE....VERY POOR (2900-9500 FT-MPH).

TIME (EDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P
SKY (%).........6   4   3   1   4   7   10  12  14  16  14  12
WEATHER COV.....
WEATHER TYPE....
TEMP............70  73  75  77  77  77  77  76  74  72  70  68
RH..............49  44  41  40  39  37  36  37  41  46  49  52
20 FT WIND DIR..W   W   W   W   W   W   W   W   SW  SW  SW  SW
20 FT WIND SPD..11  11  11  11  11  10  10  10  11  11  12  12
20 FT WIND GUST.20  20  20  20  20  15  15  15  20  20  20  20
MIX HGT (KFT)...0.3 0.4 0.5 0.7 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.W   W   W   W   W   W   W   W   W   SW  SW  SW
TRANSP WIND SPD.15  16  16  16  17  17  16  15  13  10  10  12

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........75 PERCENT.
WIND (20FT/2MIN)....WEST WINDS 12 TO 16 MPH.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 16 MPH.
VENTILATION RATE....VERY POOR (2300-3600 FT-MPH).

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........47 PERCENT.
WIND (20FT/2MIN)....NORTHWEST WINDS AROUND 16 MPH WITH GUSTS UP TO
                    25 MPH.
MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 3000-4700 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 TO 23 MPH.
VENTILATION RATE....VERY POOR TO POOR (3400-38800
                    FT-MPH)...INCREASING TO FAIR TO GOOD
                    (57100-95600 FT-MPH) IN THE AFTERNOON.



FORECASTER...ALBRIGHT
REQUESTED BY...TIM CRAIG
TYPE OF REQUEST...PRESCRIBED
.TAG 20100416.BPOOL.01/AKQ