663
FXUS64 KHGX 130505
AFDHGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1205 AM CDT WED AUG 13 2025
..NEW DISCUSSION, MARINE
KEY MESSAGES
ISSUED AT 1250 PM CDT TUE AUG 12 2025
- TYPICAL SUMMER-LIKE WEATHER IS EXPECTED THIS WEEK WITH ISOLATED TO
SCATTERED SHOWERS AND STORMS, WITH THE BEST CHANCES IN THE
AFTERNOON.
- HIGH TEMPERATURES MAINLY IN THE LOW TO MID 90S THROUGHOUT THE
WEEK WITH AN INCREASING TEMPERATURE TREND POSSIBLE OVER THE
WEEKEND INTO EARLY NEXT WEEK.
DISCUSSION
ISSUED AT 1144 PM CDT TUE AUG 12 2025
THE PATTERN OF HEAT AND HUMIDITY WITH ISOLATED TO SCATTERED STORMS
CONTINUES WEDNESDAY THROUGH THE END OF THE WEEK AS WE REMAIN
STATIONED IN A WEAK UPPER LEVEL TROUGH. ELEVATED PWAT VALUES
(1.9-2.3" RANGE) ALONG WITH SURFACE CONVERGENCE AND SHORTWAVES
ALOFT WILL CONTRIBUTE TO SCATTERED SHOWERS AND THUNDERSTORMS
ACROSS THE AREA DURING THE AFOREMENTIONED PERIOD. EXPECT COVERAGE
TO START OUT OVER THE COASTAL WATERS DURING THE MORNING HOURS WITH
ACTIVITY SPREADING FURTHER INLAND DURING THE AFTERNOON HOURS.
RAIN CHANCES DECREASE LATER IN THE WEEKEND AND INTO NEXT WEEK AS
THE RIDGE BUILDS BACK IN FROM THE WEST. TEMPERATURES WILL BE ON
THE RISE AS A RESULT OF THIS. IN ADDITION TO THIS, ELEVATED
MOISTURE WILL CONTRIBUTE TO INCREASED HUMIDITY AND CONSEQUENTLY
HIGHER HEAT INDEX VALUES. HIGHS LATER IN THE WEEKEND AND INTO NEXT
WEEK WILL INCREASE INTO THE UPPER 90S WITH HEAT INDEX VALUES
TOPPING OUT IN THE 105-109F ACROSS MUCH OF THE AREA.
NHC HAS INTRODUCED A NEW AREA OF CONCERN IN THE SW GULF. AN AREA
OF DISORGANIZED SHOWERS AND STORMS IN THE NW CARIBBEAN WILL
GRADUALLY MOVE NW OVER THE NEXT SEVERAL DAYS. THERE IS A LOW (20%)
CHANCE OF TROPICAL DEVELOPMENT IN THE NEXT 7 DAYS AS IT MOVES INTO
THE SW GULF. AT THIS TIME IT IS TOO EARLY TO DETERMINE WHAT, IF
ANY IMPACTS WE WILL EXPERIENCE IN SE TEXAS. AS WE APPROACH THE
PEAK OF HURRICANE SEASON IT IS IMPORTANT TO REMAIN VIGILANT AND
PREPARED AND STAY UP TO DATE ON THE LATEST FORECASTS.
AVIATION
(00Z TAF ISSUANCE)
ISSUED AT 620 PM CDT TUE AUG 12 2025
ISOLATED SH/TS HAVE MOSTLY DISSIPATED, BUT CANNOT RULE OUT
ADDITIONAL POP-UPS OVER THE NEXT COUPLE OF HOURS ESPECIALLY IF ANY
LINGERING OUTFLOW BOUNDARIES COLLIDE WITH ONE ANOTHER. LIGHT AND
VARIABLE WINDS WILL PREVAIL OVERNIGHT. ISOLATED TO SCATTERED SH/TS
ARE EXPECTED TO DEVELOP DURING THE EARLY MORNING HOURS OF
WEDNESDAY RIGHT ALONG THE COAST. THIS SETS THE STAGE FOR
ADDITIONAL CONVECTION DURING THE AFTERNOON HOURS FURTHER INLAND
MAINLY BETWEEN 18Z-00Z. GUSTY WINDS AND HEAVY RAINFALL MAY LEAD TO
INTERMITTENT PERIODS OF REDUCED CEILINGS/VISIBILITIES IN ANY OF
THE STRONGER STORMS. ANY CONVECTION THAT DEVELOPS WILL DISSIPATE
AROUND OR JUST AFTER SUNSET. AS FAR AS WINDS GO, EXPECTING WINDS
TO REMAIN BELOW 5 KT FOR MOST OF THE DAY, BUT THE SEABREEZE IN THE
AFTERNOON WILL BRING SOUTHEASTERLY WINDS AROUND 10 KT FOR
TERMINALS NEAR AND SOUTH OF I-10 BY THE LATE AFTERNOON HOURS.
BATISTE
MARINE
ISSUED AT 1144 PM CDT TUE AUG 12 2025
OFFSHORE WINDS EARLY IN THE MORNINGS, AND ONSHORE WINDS IN THE
AFTERNOON AND EVENINGS CAN BE EXPECTED FOR THE NEXT SEVERAL DAYS
DUE TO SEA AND LAND BREEZES. LOW SEAS WILL ALSO PREVAIL THROUGH
MOST OF THE PERIOD. WITH ENOUGH MOISTURE AND THE PRESENCE OF A
WEAK SURFACE TROUGH ALONG THE COAST, ISOLATED TO SCATTERED SHOWERS
AND STORMS ARE EXPECTED EACH DAY, WITH THE BEST CHANCES/COVERAGE
THURSDAY AND FRIDAY.
PRELIMINARY POINT TEMPS/POPS
COLLEGE STATION (CLL) 77 95 76 96 / 10 40 20 30
HOUSTON (IAH) 79 96 78 95 / 10 50 20 60
GALVESTON (GLS) 82 91 83 91 / 10 40 20 40
HGX WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
DISCUSSION...ADAMS
AVIATION...BATISTE
MARINE...ADAMS/JM
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