905
FXUS64 KEWX 010644
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
144 AM CDT Tue Sep 1 2026

...New SHORT TERM, LONG TERM...

.KEY MESSAGES...
Updated at 138 AM CDT Tue Sep 1 2026

- Increased chances for showers and storms Tuesday through Friday
  over the Coastal Plains and into portions of the I-35 Corridor
  due to Edouard`s remnants.

- Rainfall amounts of 1-2 inches place the Coastal Plains in a
  Marginal Risk (Level 1 of 4) for rain that could lead to
  localized flash flooding on Tuesday afternoon/evening.

- Continued hot and humid weather will contribute to elevated heat
  indices in the 105-110 range through the weekend.

&&

.SHORT TERM...
(Today through Wednesday)
Issued at 138 AM CDT Tue Sep 1 2026

Tropical Storm Edouard has formed in the northern Gulf this evening.
It is expected to strengthen somewhat before moving inland over
southeast Texas Tuesday evening. Increasing low to mid-level
moisture from the surface to 500mb will result in increased shower
and storm coverage ahead of Edouard`s landfall, primarily over
the Coastal Plains, but some of this activity could certainly make
it farther inland to the northern I-35 Corridor and northern Hill
Country. At this time, concerns for impacts outside of locally
heavy rainfall are near-zero, but some gusty winds in showers or
storms is possible. WPC places a Day 1 level 1 of 4 risk for
excessive rainfall over the Coastal Plains with 1-2 inches
possible on the high end of things.

&&

.LONG TERM...
(Wednesday night through Monday)
Issued at 138 AM CDT Tue Sep 1 2026

Increased moisture from Edouard will result in scattered showers
and storms for the Coastal Plains Tuesday afternoon/evening and
stretching into the day Wednesday. Edouard looks to get stuck over
east Texas Wednesday-Friday, bringing scattered showers and
storms to the Coastal Plains and portions of the northern Hill
Country and northern I-35 Corridor. The primary concern with any
storms will be downbursts and locally heavy rainfall that could
lead to localized and minor flooding issues. Heat and increased
humidity will continue and highs will easily climb into the upper
90s to around 100 most days through the remainder of the forecast
period along with heat indices in the 105-110 range through the
weekend. One positive thing to note is that we may finally break
free of persistent ridging by next weekend as the pattern breaks
down in favor of a more active easterly mid-level flow regime.

&&

.AVIATION...
(06Z TAFS)
Issued at 1254 AM CDT Tue Sep 1 2026

VFR skies are in place, with the latest GOES Nighttime
Microphysics product showing some hints of low clouds developing
along the middle Texas coast and into portions of the coastal
plains. We have adjusted the forecast to show some TEMPO MVFR cigs
at SAT and SSF between 09-12Z, with only SCT low clouds at AUS.
Low clouds mix out quickly by mid-morning, leaving SCT clouds with
bases in the 5K-8K range for the afternoon and early evening.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              99  77  99  76 /  20  20  40  30
Austin Bergstrom Intl Airport  98  77  99  76 /  20  20  40  40
New Braunfels Muni Airport     98  75  99  75 /  20  10  10  20
Burnet Muni Airport            96  75  96  75 /  20  10  30  20
Del Rio Intl Airport          100  78 102  79 /   0   0   0   0
Georgetown Muni Airport        97  76  97  76 /  20  20  40  40
Hondo Muni Airport             99  75  99  74 /   0   0   0   0
San Marcos Muni Airport        98  76  99  75 /  20  10  20  20
La Grange - Fayette Regional   98  77  98  77 /  30  40  50  50
San Antonio Intl Airport       98  77 100  77 /  10   0  10  10
Stinson Muni Airport          100  78 102  77 /  10   0   0  10

&&

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

$$

SHORT TERM...MMM
LONG TERM....MMM
AVIATION...Platt