271
FXUS64 KEWX 152339
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
639 PM CDT Sun Jun 15 2025

...New AVIATION...

.SHORT TERM...
(Tonight through Monday night)
Issued at 229 PM CDT Sun Jun 15 2025

Key Messages:

- Scattered convection this afternoon/early evening with a few
  strong storms possible.

- Elevated Heat Index values on Monday.

A line of showers and storms is moving southward through central
Texas, with surface observations showing scattered wind gusts of 40-
50 mph, with a few higher gusts near 55 mph also noted. This line
will continue to move southward into south central Texas through
this afternoon and into the early evening. In addition, we are
monitoring some showers and storms developing from the coastal
plains into the Highway 77 corridor. A few strong storms will be
possible, with wind gusts of 50-55 mph, occasional lightning strikes
and brief heavy rain being the main concerns. Areas where soils are
saturated can also expect increased runoff and minor flooding. Most
of the activity will be tied closely to daytime heating, so a
decrease in the coverage of convection is expected through the
evening hours.

On Monday, we will continue to see a low chance for showers and
storms from the coastal plains into the Highway 77 corridor.
Elsewhere, we will keep the forecast dry. Daytime highs will be in
the 90s for most locations, with 100-105 along the Rio Grande. With
south winds helping to keep moisture intact, elevated heat index
values will be present over the region. A few spots along and east
of I-35 may briefly approach 108 degrees.

&&

.LONG TERM...
(Tuesday through Sunday)
Issued at 229 PM CDT Sun Jun 15 2025

Key Messages:

- Seasonably hot and humid conditions expected through next week.

- Returning rain and storm chances mid to late week as the
  Subtropical Ridge weakens and shift south and west.

Subtropical ridging will strengthen its grasp on the region Tuesday
with hot, humid, and dry conditions expected. Afternoon highs should
climb into the mid to upper 90s outside of the Rio Grande Plains,
where high temperatures will warm into the 100-106 range. Wednesday
now looks similar with little to no chance at rain as the ridge
lingers a bit longer than previous model guidance. Temperatures once
again warm into the mid to upper 90s east with 100- 106 over the Rio
Grande Plains.

On Thursday, the Subtropical high should start to push south and
west, opening the door for the return of northwest to northerly flow
aloft. This will result in shower and thunderstorm chances each
afternoon Thursday through Sunday. At this time, severe weather is
not anticipated.

&&

.AVIATION...
(00Z TAFS)
Issued at 622 PM CDT Sun Jun 15 2025

Broken line of TSRA from a CZT to PEZ to T20 line at 00Z is expected
to continue south and gradually weaken over the next few hours Winds
behind this line are veering from north to east to south, and should
settle to a weak southeast to south wind overnight. Low clouds
return tonight with MVFR CIGs forecast at all TAF sites continuing
to around 16Z, with highest confidence for SAT/SSF. Isolated TSRA is
possible after 16Z mainly east of AUS, but confidence is too low to
note in the 00Z TAFS.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              76  96  76  97 /  10  10   0   0
Austin Bergstrom Intl Airport  76  95  76  96 /  10  10   0   0
New Braunfels Muni Airport     75  94  74  95 /  10  10   0   0
Burnet Muni Airport            74  94  73  95 /  10   0   0   0
Del Rio Intl Airport           79 101  79 103 /   0   0   0   0
Georgetown Muni Airport        75  95  75  95 /  10  10   0   0
Hondo Muni Airport             75  95  74  97 /  10   0   0   0
San Marcos Muni Airport        75  95  75  96 /  10  10   0   0
La Grange - Fayette Regional   76  92  75  92 /  20  20   0   0
San Antonio Intl Airport       77  94  75  95 /  10   0   0   0
Stinson Muni Airport           77  95  76  96 /  10   0   0   0

&&

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

$$

Short-Term...Platt
Long-Term...MMM
Aviation...Tran