An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >
770
FXUS64 KEWX 302314
AFDEWX
Area Forecast Discussion
National Weather Service Austin/San Antonio TX
514 PM CST Tue Dec 30 2025
...New AVIATION...
.KEY MESSAGES...
- Freezing temperatures likely (60 to 90% chance) tonight for
mainly low-lying areas east of US-83.
- Cool and dry with temperatures in the mid 40s to low 50s around
midnight for New Year`s.
- Warmer temperatures to start 2026 with dry weather continuing.
&&
.SHORT TERM...
(Tonight through Wednesday night)
Issued at 1147 AM CST Tue Dec 30 2025
Clear skies are spreading across our region as the dry wake of an
upper-level trough moves over the area. Calm winds tonight under
surface high pressure combined with this dryness will allow
temperatures to cool more substantially tonight than previous
nights. Lows early Thursday morning are projected to fall into the
30s regionwide. Freezes are anticipated especially for low-lying
areas as the coolest air oozes into river valleys and low-lying
plains, with better chances generally east of US-83. The
likelihood of a freeze from the latest NBM ranges from 60% to near
90% for these favored spots. A few patchy areas may briefly dip
into the upper 20s just before sunrise.
A light but warmer southerly wind starts to return for New Year`s
Eve as the cold airmass begins to vacate the area. Highs in the mid
to upper 60s are forecast during the day under sunny skies. When the
clock hits midnight and 2026 arrives, temperatures are forecast to
be cool in the mid 40s to low 50s, decreasing into the upper 30s to
low 40s by sunrise on New Year`s Day.
&&
.LONG TERM...
(Thursday through next Tuesday)
Issued at 1147 AM CST Tue Dec 30 2025
By late week, an upper-level ridge becomes established over the
Central US, and this ridging is represented in all ensemble
clusters through at least the weekend. This will usher in a return
of unseasonably warm temperatures, with the chance of above-
average temperatures exceeding 80 percent. Highs New Year`s Day
are forecast to be in the 70s. Warm southwest flow may be enhanced
Friday as a weak shortwave within the broader ridging passes to
our north, resulting in forecast highs in the low to mid 80s
regionwide. This is in daily record high territory for Austin and
San Antonio, with the latest probabilistic national blend showing
60 to 90 percent probabilities for daily records being set for
those sites on Friday.
A weak front associated with the aforementioned low-pressure system
Friday night into Saturday may lower temperatures somewhat, but
otherwise zonal flow and persistent ridging continuing aloft should
support mostly steady temperatures this weekend into early next week
with highs in the mid 70s to low 80s and lows in the mid 40s to mid
50s for most.
&&
.AVIATION...
(00Z TAFS)
Issued at 513 PM CST Tue Dec 30 2025
VFR flight conditions are expected through the period. An area of 7-
9kt ceilings lingers in the west near the Rio Grande but will
continue to erode over the next few hours. Mostly clear skies will
persist overnight except for a few high clouds streaming overhead.
Wind will be light and variable through Wednesday morning, then
become southerly after 18Z.
&&
.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry 35 70 45 75 / 0 0 0 0
Austin Bergstrom Intl Airport 29 68 40 74 / 0 0 0 0
New Braunfels Muni Airport 31 68 41 73 / 0 0 0 0
Burnet Muni Airport 32 67 41 74 / 0 0 0 0
Del Rio Intl Airport 37 68 43 75 / 0 0 0 0
Georgetown Muni Airport 31 68 42 74 / 0 0 0 0
Hondo Muni Airport 31 67 40 73 / 0 0 0 0
San Marcos Muni Airport 29 69 40 74 / 0 0 0 0
La Grange - Fayette Regional 30 68 40 74 / 0 0 0 0
San Antonio Intl Airport 34 67 44 73 / 0 0 0 0
Stinson Muni Airport 34 68 43 75 / 0 0 0 0
&&
.EWX WATCHES/WARNINGS/ADVISORIES...
Freeze Warning from 3 AM to 8 AM CST Wednesday for TXZ204-
219>222.
&&
$$
SHORT TERM...Tran
LONG TERM....Tran
AVIATION...27
No recent Short Term Forecast (NOW) has been issued for NWS Austin/San Antonio CWA (EWX).
Special Weather Statement Issued: 12/28/2025 08:06:00 PM UTC
Follow us on X
Follow us on Facebook
Follow us on YouTube
EWX RSS Feed