893
FXUS64 KEWX 070536
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
1236 AM CDT Fri Aug 7 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 1227 AM CDT Fri Aug 7 2026

- Continued hot and dry for most of South-Central Texas for the next
seven days.

- A few spots in the Coastal Plains could reach Heat Advisory
criteria briefly during the afternoon today and tomorrow.

- There will be a slight chance for showers or thunderstorms over
the Coastal Plains during the afternoon today and tomorrow.

- There will be a slight chance for showers or thunderstorms over
  the Coastal Plains this afternoon and for the next several
  afternoons including the weekend.

&&

.SHORT TERM...
(Tonight through Friday night)
Issued at 1200 PM CDT Thu Aug 6 2026

Scattered cumulus clouds are moving from the Coastal Plains into
the I-35 corridor and Hill Country as of 12:30 PM CDT. Over the
Del Rio area, a low overcast deck is hanging there, however, those
clouds are forecast to dissipate in the next few hours. Forecast
highs are on track with temperatures ranging from the low to upper
90s and up to 103 across the southern Rio Grande Plains. Heat
index values are forecast to reach up to 107 along the I-35
corridor and up to 108 over parts of the southern Rio Grande
Plains. Can`t rule out a few spots across the far southeast
counties or east of La Grange to Gonzales to Kenedy line to
briefly reach Heat Advisory criteria. Otherwise, most areas of
South-Central Texas are staying dry for the rest of this afternoon
and evening. However, isolated showers or thunderstorms are
possible over portions of the Coastal Plains for the afternoon
period. The best probabilities stay east of the I-35 corridor
especially east of La Grange to Gonzales to Kenedy line. This
activity main driver is the seabreeze pushing north to northwest
for the period. If any of these showers or storms develop, they
are ending by 7 PM or so as the Sun goes down.

Clouds begin to redevelop late tonight through Friday morning with
a light southerly wind flow over most locations. Winds are
forecast to have an easterly direction across the Rio Grande
Plains.

A similar weather day like today is forecast for Friday across the
local area with clouds dissipating late morning giving way to
partly cloudy to mostly sunny skies in the afternoon. Forecast
highs in the low to upper 90s and up to 103 over portions of the
southern Rio Grande Plains. Heat index values in the 100 to 107
range over most part with a few locations hitting Heat Advisory
criteria briefly.

&&

.LONG TERM...
(Saturday through next Thursday)
Issued at 1200 PM CDT Thu Aug 6 2026

The weather pattern does not change a whole lot for the weekend
into the middle of next week. Continued hot and dry with the
exception of sea breeze activity each afternoon over portions of
the Coastal Plains. The subtropical ridge remains in control of
the local area for the next several days. By the weekend, the
upper level high moves slightly to the west and allows an inverted
upper level trough to push across the local area. That weakness
stays through Tuesday and then an upper level ridge develops over
Gulf states to keep South-Central Texas dry and humid. Best
chances for showers and storms remain across the Coastal Plains.

&&

.AVIATION...
(06Z TAFS)
Issued at 1227 AM CDT Fri Aug 7 2026

Breezy late afternoon and evening conditions should help maintain
persistence weather with overnight stratus returning to the
SAT/SSF/AUS areas between 08Z and 10Z and DRT to pick up an MVFR
CIG by around 14Z. VFR skies should return by around 18Z and
another afternoon of isolated storms are expected by 21Z. Main
impacts of the convection will be outflow boundaries, so in this
update, will avoid chasing the timing and location for convection
which should be mostly east of I-35.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              97  76  97  76 /  10  10  10  10
Austin Bergstrom Intl Airport  98  76  98  76 /  10  10  10  10
New Braunfels Muni Airport     97  75  97  75 /  10  10  20  20
Burnet Muni Airport            96  73  96  73 /   0   0  10  10
Del Rio Intl Airport           99  77  98  77 /   0   0   0   0
Georgetown Muni Airport        97  75  97  75 /  10  10  10  10
Hondo Muni Airport             97  73  96  73 /  10  10  10  10
San Marcos Muni Airport        98  75  98  75 /  10  10  20  20
La Grange - Fayette Regional   96  76  96  76 /  20  20  20  20
San Antonio Intl Airport       97  76  96  77 /  10  10  10  10
Stinson Muni Airport           98  76  98  77 /  10  10  10  10

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...05
LONG TERM....05
AVIATION...18