Severe Thunderstorm Warning 150, NWS Austin/San Antonio, TX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
630 PM CDT Tue May 26 2026

...New AVIATION...

.KEY MESSAGES...

- Active and unsettled weather pattern this afternoon through
  Wednesday with localized flooding issues possible.

- Warmer and drier weather forecast for latter part of the work
  week

- Rain chances return over the weekend and early next week as we
  turn the calendar to June.

&&

.UPDATE...
Issued at 341 PM CDT Tue May 26 2026

We have expanded the Severe Thunderstorm Watch into Atascosa
County with the severe thunderstorm headed into the county from
the west. More storms may form later this evening.

&&

.SHORT TERM...
(Tonight through Wednesday night)
Issued at 1256 PM CDT Tue May 26 2026

As of 1 PM CDT, the line of storms that extends from the San
Angelo's area to the southwest into the Midland's area is
producing heavy rain with rain rates of 1 to 2 inches per hour.
This trend is forecast to continue as the line pushes eastward
this afternoon and evening. This activity is taking advantage of a
mid to upper level trough axis moving across the Southern
Plains/central Texas. As the day progresses, instability increases
to help storms grow to strong and severe weather levels. All
severe weather hazards are possible including very large hail of
2+ inches. Can't rule out an isolated tornado or two. A Level 2 of
5 (Storm Prediction Center) risk of severe thunderstorms
highlights areas west of Highway 281 and Level 1 of 5 risk for
severe thunderstorms east of Highway 281 through Wednesday
morning. Also, WPC ERO Day 1 highlights all of South Central
Texas at a Level 1 of 4 risk of excessive rainfall through
Wednesday morning. As a matter of fact, we are expecting rainfall
rates to be elevated as the convective line of storms moves across
most of the local area through the period. Due to saturated soils
or very wet grounds per last several days, a quick 1 to 3 inches
could cause some sort of flooding issues across the area,
especially over the Flood Watch area. The big concern with this
line is that if slows down as it pushes through Rio Grande
Plains, Southern Edwards Plateau, and Hill Country, then
probabilities go up for isolated spots to get up to 5 inches of
rainfall. Can't pinpoint the locations and therefore, anyone
under the Flood Watch has equal opportunities. The Flood Watch is
in effect from 4 PM through 8 AM Wednesday and takes all
uncertainties into account. The most likely storm timing is mid/late
afternoon and evening along the Rio Grande Plains, late evening
through early overnight over the Hill Country and parts of the
I-35 corridor, and overnight east of I-35 corridor and Coastal
Plains.

By noon Wednesday, most of the shower and thunderstorm activity
should be concentrated east of I-35 corridor with rain chances
diminishing and coming to an end during the evening.

&&

.LONG TERM...
(Thursday through next Tuesday)
Issued at 1256 PM CDT Tue May 26 2026

Dry weather conditions are in store for Thursday and Friday for the
most part. Can't rule out a few showers or even an isolated
thunderstorms along and east of Highway 77 both afternoons. After a
cooler day on Wednesday due to cloud cover and wet grounds, a
warming trend starts for the latter portion of the week with highs
in the upper 80s and lower 90s over most places with mid 90s along
the Rio Grande Plains.

Rain chances return over parts of South Central Texas especially
areas along the Rio Grande Plains and Hill Country per latest
guidance. The somewhat weather pattern continues into early next
week with highs in the 80s and 90s.

&&

.AVIATION...
(00Z TAFS)
Issued at 622 PM CDT Tue May 26 2026

Showers and thunderstorms will be the main concern for the next
6-12 hours. Storms have moved east of DRT and they should be free
of convection for the rest of the night. The best timing in the
Austin and San Antonio areas looks between 03Z and 07Z. Any storms
will lower visibility. After 07Z there will be a continued low
chance for showers until around sunrise. Any showers overnight
will lower ceiling. All airports will be VFR Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              70  84  70  88 /  80  50  30  20
Austin Bergstrom Intl Airport  71  84  71  88 /  90  60  30  20
New Braunfels Muni Airport     70  84  69  88 /  90  50  10  20
Burnet Muni Airport            68  81  68  85 /  80  50  20  10
Del Rio Intl Airport           69  89  71  91 /  70  10  10   0
Georgetown Muni Airport        69  82  69  86 /  80  50  30  20
Hondo Muni Airport             69  83  69  87 /  80  50  10  10
San Marcos Muni Airport        70  84  70  88 /  90  50  20  20
La Grange - Fayette Regional   72  82  70  87 /  80  60  20  40
San Antonio Intl Airport       71  84  71  88 /  90  40  20  10
Stinson Muni Airport           71  84  71  88 /  90  40  10  10

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Wednesday morning for TXZ171>173-183>192-
202>206.

&&

SHORT TERM...17
LONG TERM....17
AVIATION...05

Special Weather Statement
National Weather Service Austin/San Antonio TX
721 PM CDT Tue May 26 2026

TXZ171-186>190-270115-
Blanco TX-Gillespie TX-Kerr TX-Llano TX-Bandera TX-Kendall TX-
721 PM CDT Tue May 26 2026

...Strong thunderstorms will impact portions of Bandera, southeastern
Kerr, Blanco, Gillespie, southwestern Llano and Kendall Counties
through 815 PM CDT...

At 721 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Horseshoe Bay to near Utopia. Movement was
east at 20 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Medina, Kerrville, Boerne, Fredericksburg, Comfort, Blanco, Bandera,
Round Mountain, Tarpley, Johnson City, Ingram, Stonewall, Kendalia,
Bandera Falls, Kerrville-Schreiner Park, Rocky Hill, Waltonia,
Kreutzberg, Cypress Mill, and Blumenthal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
south central Texas.

&&

LAT...LON 3048 9833 3043 9814 3003 9831 2973 9872
      2972 9878 2961 9888 2964 9960 3050 9903
      3050 9896 3054 9896
TIME...MOT...LOC 0021Z 282DEG 16KT 3048 9840 2964 9944

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

62

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
733 PM CDT Tue May 26 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0725 PM     Tstm Wnd Dmg     Uvalde                  29.21N 99.79W
05/26/2026                   Uvalde             TX   Trained Spotter

            Spotter reported 2.5 inch diameter branches
            down in city Uvalde.

&&

CJM

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
751 PM CDT Tue May 26 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 PM     Tstm Wnd Dmg     4 SSE Andice            30.72N 97.83W
05/26/2026                   Williamson         TX   Emergency Mngr

            EM Reports a RV pushed on its side from
            wind.

&&

CJM

Special Weather Statement
National Weather Service Austin/San Antonio TX
815 PM CDT Tue May 26 2026

TXZ171>173-186>192-204>207-270245-
Bexar TX-Blanco TX-Williamson TX-Bandera TX-Burnet TX-Guadalupe TX-
Comal TX-Gillespie TX-Kerr TX-Llano TX-Medina TX-Hays TX-Kendall TX-
Travis TX-
815 PM CDT Tue May 26 2026

...Strong thunderstorms will impact portions of central Bandera,
northwestern Guadalupe, Travis, southeastern Gillespie, Kendall,
southern Burnet, northeastern Medina, Williamson, southeastern Kerr,
Hays, Blanco, southeastern Llano, Bexar and Comal Counties through
945 PM CDT...

At 814 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Liberty Hill to near Bandera. Movement was
east at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
San Antonio, Austin, Round Rock, New Braunfels, Cedar Park,
Georgetown, San Marcos, Pflugerville, Medina, Schertz, Kyle, Cibolo,
Kerrville, Converse, Universal City, Taylor, Live Oak, Buda, Boerne,
and Selma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
south central Texas. A Severe Thunderstorm Watch also remains in
effect until 600 AM CDT for south central Texas.

&&

LAT...LON 3062 9722 3058 9721 2994 9780 2988 9789
      2986 9788 2929 9839 2969 9942 3082 9807
TIME...MOT...LOC 0114Z 289DEG 23KT 3069 9797 2967 9912

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...55 MPH

62

Special Weather Statement
National Weather Service Austin/San Antonio TX
826 PM CDT Tue May 26 2026

TXZ173-270245-
Williamson TX-
826 PM CDT Tue May 26 2026

...A strong thunderstorm will impact portions of northern Williamson
County through 945 PM CDT...

At 826 PM CDT, Doppler radar was tracking a strong thunderstorm near
Florence, or 11 miles north of Serenada, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Georgetown, Granger, Bartlett, Jarrell, Florence, Andice, Granger
Dam, Theon, Laneport, Hare, Walburg, and Schwertner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3087 9763 3074 9727 3063 9723 3079 9796
      3091 9783
TIME...MOT...LOC 0126Z 253DEG 29KT 3086 9770

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

62

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
832 PM CDT Tue May 26 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0823 PM     Tstm Wnd Dmg     Sabinal                 29.32N 99.47W
05/26/2026                   Uvalde             TX   NWS Employee

            A large tree was blown down and partly
            blocking Barnard Avenue in Sabinal.

&&

CJM