Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX

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618
FXUS64 KEWX 300613
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
113 AM CDT Thu Jul 30 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 112 AM CDT Thu Jul 30 2026

- Hot and dry weather is expected through the rest of the week.

- A Moderate (level 2 of 4) to Major (level 3 of 4) Heat Risk is
  expected every day into early August.

- Weak frontal boundary brings chance of showers and isolated
  thunderstorms Saturday night into Sunday.

&&

.SHORT TERM...
(Today through Friday)
Issued at 100 AM CDT Thu Jul 30 2026

Hot, but seasonal, temperatures and dry conditions continue under
strong high pressure across South Central Texas through the
remainder of July. Heat Indices are expected to range from 95-107
across the region once again today and Friday, falling just shy of
any Heat Advisory criteria. There remains a Moderate (level 2 of
4) to Major (level 3 of 4) Heat Risk each afternoon, with muggy
nights in the mid to upper 70s expected to provide little relief.
Remember to stay hydrated and practice heat safety if outdoors to
prevent heat-related illness.

&&

.LONG TERM...
(Friday night through Wednesday)
Issued at 100 AM CDT Thu Jul 30 2026

The dominant ridge of high pressure pivots westward by the
weekend, allowing a weak frontal boundary to sneak south Saturday
into Sunday with a brief northerly wind shift and low to medium
(20-35 percent) chance of rain Saturday night into Sunday
afternoon with isolated thunderstorms possible. At this time, most
QPF forecasts keep isolated amounts below one-tenth to one-
quarter of an inch. The GFS and ECMWF briefly pop PWAT values
above 2 inches as the boundary swings south, above the 90th
percentile for early August, but vary wildly on location and at
least do not stall the moisture. NBM probabilities remain low
(below 15 percent) for any rainfall greater than one-half inch,
mainly near Del Rio and Eagle Pass. With little confidence in
either solution at this time, will stick to current POPs and QPF
and continue to monitor trends into the end of the week.

Otherwise, expect seasonal heat to carry into the first week of
August, potentially down a couple of degrees from the end of this
week but still likely popping triple-digit Heat Indices. A
Moderate (level 2 of 4) to Major (level 3 of 4) Heat Risk persists
into mid-week, so heat safety messaging continues to be the
primary concern.

&&

.AVIATION...
(06Z TAFS)
Issued at 112 AM CDT Thu Jul 30 2026

VFR conditions are forecast for all local terminals for most of this
cycle. However, MVFR cigs are forecast to develop along the I-35
airports by day-break for a few hours. VFR conditions resume and
remain for the rest of the day into the evening hours. Southerly
winds of 5 to 10 knots are forecast to prevail for most times with
wind gusts ranging from 18 to 22 knots especially in the afternoon
and early evening.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              99  76  99  77 /   0   0   0   0
Austin Bergstrom Intl Airport 100  76 100  77 /   0   0   0   0
New Braunfels Muni Airport     99  74  99  76 /   0   0   0   0
Burnet Muni Airport            97  73  98  75 /   0   0   0  10
Del Rio Intl Airport          101  78 101  79 /   0   0   0   0
Georgetown Muni Airport        99  76  99  77 /   0   0   0  10
Hondo Muni Airport             99  74  98  76 /   0   0   0   0
San Marcos Muni Airport       100  75 100  76 /   0   0   0   0
La Grange - Fayette Regional  100  76 100  77 /   0   0   0   0
San Antonio Intl Airport      100  76  99  77 /   0   0   0   0
Stinson Muni Airport          100  76  99  77 /   0   0   0   0

&&

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

$$

SHORT TERM...Hallman
LONG TERM....Hallman
AVIATION...17