San Antonio, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

121
FXUS64 KEWX 250722
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
222 AM CDT Fri Apr 25 2025

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

.SHORT TERM...
(Today through Saturday)
Issued at 222 AM CDT Fri Apr 25 2025

Key Message:

- Isolated to scattered showers and thunderstorms this afternoon
  mainly along and north of I-10.

We`ll start to see some change in the upper level pattern today as a
ridge begins to build over Texas. There will be one last chance for
convection this afternoon before the ridge brings a more stable
pattern. The low levels will remain warm and moist with
southeasterly flow from the Gulf. Strong daytime heating and a weak
upper shortwave trough will produce isolated to scattered showers
and thunderstorms this afternoon mainly along and north of I-10. Hi-
res models do not show any strong convection, but there could be
some small hail and moderate rain in thunderstorms. Convection
should end quickly with the loss of heating during the evening.
Tonight and Saturday the upper ridging will end chances for
convection. Low level flow will continue to be from the southeast
keeping the airmass warm and moist. High temperatures today will be
a few degrees warmer than yesterday. Lows and highs Saturday will be
similar to today.

&&

.LONG TERM...
(Saturday night through Thursday)
Issued at 222 AM CDT Fri Apr 25 2025

Key messages:

- Slight chances of showers and storms Val Verde County on Sunday
  and Monday, then higher chances all areas Tuesday through Thursday

- Unseasonably warm through the period

A few showers and storms develop with heating along the dryline in
west Texas and over the Serranias del Burro of northern Mexico on
Sunday and Monday during the afternoon hours. Steering flow then
takes them over Val Verde County (20 percent chance) where they
dissipate each evening with loss of heating after sunset. An upper
level trough moves over the Plains states mid week followed by
another by next weekend. There remain some timing and strength
differences among the models/ensembles. However, the best chances (20
to 60 percent) for showers and storms, are currently late Tuesday
into Wednesday and late Thursday into next Friday. Later forecasts
will evaluate the potential for strong to severe storms, as well as,
heavy rains. Southerly lower level flow maintains unseasonably warm
temperatures through through the period.

&&

.AVIATION...
(06Z TAFS)
Issued at 1221 AM CDT Fri Apr 25 2025

Low clouds are beginning to develop across the region and ceilings
should reach all of the terminals within the next couple of hours.
Ceilings will eventually settle at IFR height in San Antonio and
Austin and MVFR at DRT. Ceilings will rebound back to VFR by around
noon. There is a low chance for showers or thunderstorms during the
morning in the Austin area and a better chance during the afternoon
in Austin and San Antonio.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              87  68  88  69 /  30  10  10   0
Austin Bergstrom Intl Airport  86  67  87  68 /  30  10  10   0
New Braunfels Muni Airport     88  67  88  68 /  30  10  10   0
Burnet Muni Airport            86  67  85  67 /  30  10  10  10
Del Rio Intl Airport           91  72  90  71 /  10  10  10  10
Georgetown Muni Airport        87  67  86  68 /  30  10  10   0
Hondo Muni Airport             87  68  88  67 /  20  10  10   0
San Marcos Muni Airport        86  67  87  67 /  30  10  10   0
La Grange - Fayette Regional   86  68  88  69 /  30   0   0   0
San Antonio Intl Airport       86  69  87  69 /  30  10  10   0
Stinson Muni Airport           88  70  89  70 /  30  10  10   0

&&

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

$$

Short-Term...05
Long-Term...04
Aviation...05