532
FXUS64 KEWX 192301
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
501 PM CST Fri Dec 19 2025

...New AVIATION...

.KEY MESSAGES...

- Mostly well above normal temperatures for the weekend through
  next week.

- Dry weather for the next seven days.

&&

.SHORT TERM...
(Tonight through Saturday night)
Issued at 1220 PM CST Fri Dec 19 2025

A broad upper level trough covers the eastern half of the country
resulting in west-northwesterly flow over Texas. The low level
flow is from the southeast across our CWA as high pressure moves
to the east. Cooler, drier air has settled over the region behind
a cold front. Temperatures are 5-10 degrees cooler and dewpoints
are 30-40 degrees lower than 24 hours ago. The upper flow will
become nearly zonal for the short term. The low level will
continue from the southeast warming and moistening the boundary
layer. Dewpoints that are mostly in the 20s today will rebound to
the 40s to low 60s by Saturday afternoon. The result will be
warming through the period. Lows Saturday will be 5-15 degrees
warmer than today. Highs Saturday will be around 10 degrees warmer
than today. Sunday morning most of the area will be a few degrees
warmer than Saturday, but the Coastal Plains will be another
10-15 degrees warmer.

&&

.LONG TERM...
(Sunday through next Friday)
Issued at 1220 PM CST Fri Dec 19 2025

An upper ridge will build over Texas from the southwest during the
first part of the long term and then dominate throughout. Sunday a
weak cold front will move through our CWA bringing only minor
relief from the warm temperatures to the Hill Country and northern
I-35 Corridor. Winds will quickly switch back around to the south
to southeast Sunday night/Monday. This flow will continue through
the end of the period. Warm and dry conditions will continue.
Temperatures will be well above normal everyday of next week. We
don`t expect any record high temperatures, but record warm lows
may be possible Tuesday through Christmas. Monday through Friday
highs will be mostly in the 70s with a few spots hitting 80 and
lows will be in upper 50s and 60s.

&&

.AVIATION...
(00Z TAFS)
Issued at 442 PM CST Fri Dec 19 2025

Low afternoon dew point temperatures in the 20s and 30s could make
it difficult for the overnight winds to transport higher values
farther inland tonight. We`ll opt for a conservative start to fog
and low clouds, and that is well reflected in the NBM populate
scheme for 09Z to 12Z Saturday. Time sections depict a very
shallow layer of saturation with a large layer of dry air over the
boundary layer. The breezy S/SSW winds developing again late
Saturday morning should be able to break through the low clouds
trying to develop and mix out skies to VFR by mid day or shortly
after. Some daytime gusts to 24-27 knots will be possible. An
approaching front could get close to AUS toward the end of the 30
hour window, so some late evening lighter winds and possible low
cloud formations may need consideration for the next update.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              50  78  54  73 /   0   0   0   0
Austin Bergstrom Intl Airport  47  78  52  74 /   0   0   0   0
New Braunfels Muni Airport     46  77  53  74 /   0   0   0   0
Burnet Muni Airport            48  79  48  68 /   0   0   0   0
Del Rio Intl Airport           45  79  49  78 /   0   0   0   0
Georgetown Muni Airport        48  79  50  71 /   0   0   0   0
Hondo Muni Airport             44  77  49  80 /   0   0   0   0
San Marcos Muni Airport        46  78  53  75 /   0   0   0   0
La Grange - Fayette Regional   46  79  61  75 /   0   0   0   0
San Antonio Intl Airport       48  77  54  76 /   0   0   0   0
Stinson Muni Airport           48  79  54  77 /   0   0   0   0

&&

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

$$

SHORT TERM...05
LONG TERM....05
AVIATION...18