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National Weather Service Forecast Discussion

173
FXUS64 KHGX 060000
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
700 PM CDT Wed Aug 5 2026

...New AVIATION...

.KEY MESSAGES...

- Seasonably hot with highs in the 90s and heat index values
  100-107F each day.

- An isolated late day shower can`t be ruled out along the
  seabreeze in the afternoons.

- Slightly better rain chances expected Thursday into early next
  week for the eastern and southern parts of the region as some
  deeper moisture flows back inland.

&&

.DISCUSSION...
Issued at 103 PM CDT Wed Aug 5 2026

With exception to some light showers in the coastal counties,
conditions across the forecast area are dry (rain wise) and warm.
We could see some isolated to scattered showers and storms across
parts of the area this afternoon, and for the next few afternoons
during the work week; however, the ridge aloft centered over the
Desert SW will keep a lid on this activity.

Going into the weekend and early next week, the aforementioned
ridge will shift more to the west, slightly losing its grip over
the eastern and coastal counties. That along with a small bump up
in PWATs, and diurnal / seabreeze processes will allow for
somewhat higher PoPs in the afternoons.

MaxTs for nearly the entire duration of this forecast period will
be at or around their climatological normals for this time of
year. With that said and with dewpoints in the 70s, we are not
looking at heat indices crossing into heat hazard territory.

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 635 PM CDT Wed Aug 5 2026

VFR conditions are expected for much of the forecast period, with
the exemption of the potential for a brief period of MVFR cigs to
possibly IFR cigs from around 11-14Z for some sites. Winds will
relax to 5 KTS or less tonight and become VRB. Winds will be SSW
at 5-10 KTS Thu morning and turn S-SE at 08-12 KTS Thu afternoon.
There is a slight chance for iso showers/thunderstorms in the
afternoon, in particular for HOU/IAH/SGR/CXO. Storms, is any, are
expected to dissipate in the evening.

Cotto

&&

.MARINE...
Issued at 103 PM CDT Wed Aug 5 2026

Winds and seas will be relatively low in the 10 to 15 kt range and
2 to 4 ft range respectively. A stray shower or two cannot be
ruled out during the afternoons, with convective activity more
likely towards the end of this work week and into next week.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  77  96  76  95 /   0  10   0  10
Houston (IAH)  79  96  78  95 /  20  30  10  30
Galveston (GLS)  83  91  83  90 /   0  20  10  20

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&

$$

DISCUSSION...WFO
AVIATION...Cotto
MARINE...WFO

NWS HGX Office Area Forecast Discussion