FNUS74 KHGX 070045
FWSHGX

SPOT FORECAST FOR BIG SANDY SOUTH RX...NATIOAL PARK SERVICE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
745 PM CDT THU AUG 6 2009

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT FRIDAY...

.DISCUSSION...
AN UPPER LEVEL RIDGE WILL BE OVER EAST TEXAS FRIDAY AND SUBSIDENCE
WILL BE FAIRLY STRONG ACROSS THE AREA LEADING TO AN INVERSION. 20 FT
WINDS WILL BE LIGHT AND VARYING IN DIRECTION THROUGH NOON. DURING
THE AFTERNOON HOURS THE SEABREEZE WILL MOVE THROUGH THE SITE AND
HUMIDITY MAY ACTUALLY INCREASE BEFORE THE TEMPERATURE DROPS WITH
THE INCREASING DEPTH OF THE SEABREEZE. ISOLATED SHOWERS AND
THUNDERSTORMS MAY MOVE INTO THE AREA FROM THE EAST.

.SUNDAY...
TIME (CDT)      10 AM  NOON   2 PM   4 PM
SKY (%).........PCLDY  PCLDY  PCLDY  PCLDY
WEATHER COV.....S CHC  S CHC  CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............85     90     92     94
RH..............70     58     52     47
20 FT WIND DIR..VRB    S      S      S
20 FT WIND SPD..3      5      7      8
20 FT WIND GUST.                     10
MIX HGT (FT)....3500   5000   6000   6300
MIX HGT (M).....1067   1524   1829   1920
TRANSP WIND DIR.210    200    190    180
TRANSP WIND SPD.4      6      8      10
TRANS SPD (M/S).2      3      4      5
CWR.............10     20     30     30
CATEGORY DAY....2      3      3      4
$$
FORECASTER...PROCHAZKA
REQUESTED BY...DW IVANS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090807.BIGSA.01/HGX