624
FXUS64 KEWX 091051
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
551 AM CDT Sun Aug 9 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 548 AM CDT Sun Aug 9 2026

- Temperatures to remain near to just above normal through the
  next week.

- Most areas remain dry with only a low chance for some afternoon
  showers near and over the Coastal Plains to I-35 corridor
  through Monday.

&&

.SHORT TERM...
(Today through Monday) Issued at 1200 AM CDT Sun Aug 9 2026

As we remain in the same synoptic pattern and flow as the past few
days, we should see today play out in a similar fashion. Another
mainly dry and sunny day for most should be expected across South
Central Texas with highs in the mid 90s to around 100 degrees. Heat
indices in the low 100s up to around 108 degrees could be possible
in the Coastal Plains. There should be a slightly better opportunity
for isolated showers and perhaps a few rumbles of thunder as
development may occur between the eastern Hill Country and the
Coastal Plains. This could be in large part due to the Seabreeze or
a combination of outflow boundaries, such has has occurred for the
last previous few days. However, coverage is expected to be sparse
with rain chances remaining about 15 to 20 percent at best and
limited to the afternoon and early evening hours. Almost a repeat of
high temperatures and rain chances should occur for our Monday as
the upper ridge begins to shift slowly back towards the southeast.

&&

.LONG TERM...
(Monday night through Saturday) Issued at 1200 AM CDT Sun Aug 9 2026

The upper ridge will continue to slowly drift back towards the
southeast thus rain chances will eventually come to an end by
Tuesday. Temperatures will continue to increase a little more each
day into next week before peaking by late week. Air temperatures
during this stretch are forecast to reach the 100-102 degree range
for many areas every day. These higher temperatures combined with
the humidity may produce Heat Advisory criteria (108 degrees or
higher) for areas mainly east of I-37/I-35. The hot and mainly dry
weather looks to stick around heading into next weekend. Humidity
values should be a touch lower along with high temps mainly in the
upper 90s so we should stay just shy of heat advisory criteria
during this stretch however it will still continue to be quite hot
across the area. Continue to check back for updates and remember to
practice safe heat safety.

&&

.AVIATION...
(12Z TAFS)
Issued at 548 AM CDT Sun Aug 9 2026

A few pockets of MVFR stratus have held together around SAT/SSF,
but are keeping away from AUS and DRT for the time being. More
isolated afternoon to early evening convection is expected which
should mainly impact as a sea-breeze gust for the I-35 sites.
Surface winds should trend slightly upward in later periods
according to MOS guidances, and for that, we`ll bring back a
stratus CIGs to the I-35 sites after 06Z Monday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              97  77  97  77 /  20   0  20   0
Austin Bergstrom Intl Airport  97  77  97  77 /  20   0  20   0
New Braunfels Muni Airport     97  76  97  76 /  20   0  20   0
Burnet Muni Airport            96  74  96  75 /   0   0  10   0
Del Rio Intl Airport           98  78  98  78 /   0   0   0   0
Georgetown Muni Airport        97  76  97  76 /  20   0  20   0
Hondo Muni Airport             96  75  96  75 /   0   0   0   0
San Marcos Muni Airport        97  76  97  76 /  20   0  20   0
La Grange - Fayette Regional   96  76  95  77 /  20   0  20   0
San Antonio Intl Airport       96  77  96  78 /  20   0  20   0
Stinson Muni Airport           98  77  98  78 /  20   0  20   0

&&

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

$$

SHORT TERM...CJM
LONG TERM....CJM
AVIATION...18