574
FXUS64 KEWX 090520
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
1220 AM CDT Tue Jun 9 2026

...New AVIATION...

.KEY MESSAGES...

- Mostly stable weather for the work week with just some sea-breeze
showers and thunderstorms today and Tuesday.

- Humid air could send heat indices into the the triple digits for
  most areas through the week.

&&

.SHORT TERM...
(Tonight through Tuesday night)
Issued at 129 PM CDT Mon Jun 8 2026

Regional radar imagery shows seabreeze showers and occasional
thunderstorms over the I-35 Corridor and eastward into the Coastal
Plains. With additional cloud cover expected under these showers,
opted to lower Max T`s a couple degrees further in line with
CONSall/NBM blend. Expect highs in the upper 80s to lower 90s, with
mid 90s expected along the Rio Grande. A muggy and warm night is
expected with temperatures falling into the lower to middle 70s
along with mostly cloudy skies.

Tuesday will feature yet another shot at rain, but it`ll be quite a
bit lower as mid-levels dry out a bit more and the seabreeze weakens
as mid-level ridging strengthens. We will still carry 20-30% PoPs
from east to west, with the higher chance for rain out west along
the Rio Grande. Temperatures will climb higher as cloud cover thins
out by early afternoon. Expect highs in the lower to middle 90s for
most with the exception being in the Hill Country or Edwards Plateau
where highs may remain in the mid to upper 80s. Any rain or isolated
thunderstorms should quickly fall apart after sunset, as loss of
diurnal heating will be their downfall.

&&

.LONG TERM...
(Wednesday through next Monday)
Issued at 129 PM CDT Mon Jun 8 2026

The long term looks hot and dry, but not without humidity as soil
moisture remains high due to recent rains. Temperatures will
steadily climb as mid-level ridging takes hold Wednesday through
Saturday, with highs in the mid to upper 90s. Heat indices may climb
into the 105-110 range by late week, but adequate mixing should
limit things from getting too muggy in the afternoons. Ridging may
start to break down by the back half of the weekend, with the
potential for rain to reenter the picture early next week.

&&

.AVIATION...
(06Z TAFS)
Issued at 1211 AM CDT Tue Jun 9 2026

The pattern of the last few days will continue for the next TAF
period. MVFR ceilings are developing and will spread to all
terminals within the next couple of hours. IFR ceilings are likely
at times in the San Antonio area overnight. All terminals will
rebound to VFR by around noon. Low clouds return late tonight.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              92  76  93  77 /  10   0  20   0
Austin Bergstrom Intl Airport  92  76  93  77 /  20   0  20   0
New Braunfels Muni Airport     91  74  91  75 /  20   0  20  10
Burnet Muni Airport            90  74  91  75 /  10   0   0   0
Del Rio Intl Airport           95  76  96  78 /  20   0   0   0
Georgetown Muni Airport        91  75  93  77 /  10   0  10   0
Hondo Muni Airport             90  74  92  76 /  20   0   0   0
San Marcos Muni Airport        92  75  92  76 /  20   0  20  10
La Grange - Fayette Regional   92  76  91  77 /  20   0  20   0
San Antonio Intl Airport       91  76  92  77 /  20   0  20   0
Stinson Muni Airport           92  75  93  76 /  20   0  10   0

&&

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

$$

SHORT TERM...MMM
LONG TERM....MMM
AVIATION...05