An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >
740
FXUS64 KEWX 242322
AFDEWX
Area Forecast Discussion
National Weather Service Austin/San Antonio TX
522 PM CST Wed Dec 24 2025
...New AVIATION...
.KEY MESSAGES...
- Unseasonably warm weather continues through the week.
- Major pattern change after a cold front moves through the area
Sunday evening
&&
.SHORT TERM...
(Tonight through Thursday night)
Issued at 1153 AM CST Wed Dec 24 2025
High pressure continues to dominate over the area today with many
areas seeing very warm temperatures in the upper 70s to low 80s
possibly record breaking(see climate section below). We don`t
cool down much at all tonight as warm southerly winds continue to
keep moisture across the area. Because of this we could see the
redevelopment of fog really anywhere across the area, as dew
points remain exceptionally moist for this time of year and winds
stay rather light. Models remain all over the place on where we
could see fog so we introduced patchy to areas of fog across the
entire area and hopefully we will get a better idea as nightfall
comes.
Speaking of, lows should remain in the low 60s while this is
anomalously warm for this time of year I don`t think we quite
reach record warm low criteria for Austin and San Antonio metro
areas as these are very near 70 degrees. The one exception is Del
Rio which is only 63 degrees, we have 62 forecasted as a low there
this evening. Highs Thursday will be a touch warmer as the ridge
remains overhead with high pressure just off to our east. Expect
highs to be in the low 80s however records for Christmas day are
a bit out of reach even though highs will be some 20 degrees above
climatological levels for this time of year. Lows Christmas night
should remain very warm with many staying in the mid 60s which
could challenge our record warm lows.
&&
.LONG TERM...
(Friday through next Wednesday)
Issued at 1153 AM CST Wed Dec 24 2025
For the long term expect temperatures to continue to run some
15-20 degrees above normal for this time of year as the ridge
remains overhead and we continue to be influenced by low level
southerly flow. Expect this ridge to start to gradually weaken
with time as we move into the weekend as a strong cold front
moves across Texas and eventually our area by early Sunday
evening. Lows really drop as many will see a 30-40 degree
difference in temps with many seeing lows drop into the upper 30s
low 40s. Expect strong CAA to continue for Monday with temps
going from well above normal to well below normal with folks only
managing to reach the upper 40s to low 50s as strong northerly
winds continue to pump in colder Canadian air. CAA continues into
Tuesday with highs remaining in the 50s. Additionally, both Monday
and Tuesday evenings freezes look likely with a widespread freeze
looking likely for all areas by Wednesday morning. By Wednesday we
warm up as we finally see the return of southerly flow with many
seeing highs back to seasonal normals, meaning low 60s for all.
So enjoy the warmth for the next few days because we finally
start to feel more like winter by the latter half of this weekend.
&&
.AVIATION...
(00Z TAFS)
Issued at 522 PM CST Wed Dec 24 2025
VFR conditions through the evening hours across South-Central
Texas. HREF probabilities are very high that low stratus will
gradually re-develop 05Z-09Z across the Coastal Plains, I-35
corridor, and Hill Country, spreading westward to the Rio Grande
09Z-12Z Wednesday. HREF is indicating a 70-100% chance of LIFR
ceilings developing, including at AUS and SAT. Visibilities
reaching less than 1SM are less certain along the I-35 corridor,
around 40% at AUS and 50% at SAT. Conditions are forecast to
slowly improve 15Z-19Z Wednesday.
&&
.CLIMATE...
Issued at 1257 PM CST Tue Dec 23 2025
Record High Temperatures
12-24 12-25 12-26 12-27
Austin Bergstrom 82 (1977/1964) 91 (1955) 85 (2016) 82 (2024)
Austin Camp Mabry 82 (1964/1955) 90 (1955) 84 (2016) 79 (2021/1954)
San Antonio 83 (1964) 90 (1955) 83 (2016/2008) 82 (2005)
Del Rio 89 (1955) 87 (1955) 80 (2024) 84 (2005)
&&
.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry 62 79 63 82 / 0 0 0 0
Austin Bergstrom Intl Airport 61 80 63 82 / 0 0 0 0
New Braunfels Muni Airport 62 79 63 80 / 0 0 0 0
Burnet Muni Airport 60 79 61 82 / 0 0 0 0
Del Rio Intl Airport 61 82 60 82 / 0 0 0 0
Georgetown Muni Airport 60 80 63 83 / 0 0 0 0
Hondo Muni Airport 60 79 60 82 / 0 0 0 0
San Marcos Muni Airport 61 80 63 82 / 0 0 0 0
La Grange - Fayette Regional 62 81 63 81 / 0 0 0 0
San Antonio Intl Airport 63 79 64 80 / 0 0 0 0
Stinson Muni Airport 64 80 65 82 / 0 0 0 0
&&
.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...CJM
LONG TERM....CJM
AVIATION...76
No recent Short Term Forecast (NOW) has been issued for NWS Austin/San Antonio CWA (EWX).
No recent Special Weather Statement (SPS) has been issued for NWS Austin/San Antonio CWA (EWX).
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