Alert archive / Texas / Flash Flood Warnings in 2025

Flash Flood Warning 32, NWS Austin/San Antonio, TX

June 12, 20254 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 12, 2025, 6:05 AM CDT for 4 counties in Texas. It was in force for 5 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 12, 2025, 6:05 AM CDT (11:05 UTC)
Expired: Jun 12, 2025, 11:00 AM CDT
In force: 5 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX, Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 99 km from the middle of the area, began a volume at 11:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 12, 7:00 AM CDT	FLASH FLOOD	8 Sse Yoakum, TX	Flooded roads at multiple points along FM 1447 and FM 682.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 55 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 11.1 hours before the alert went out and 152 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1936 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

693 
WGUS54 KEWX 121105
FFWEWX
TXC123-177-255-285-121600-
/O.NEW.KEWX.FF.W.0032.250612T1105Z-250612T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
605 AM CDT Thu Jun 12 2025

The National Weather Service in Austin/San Antonio has issued a

* Flash Flood Warning for...
  DeWitt County in south central Texas...
  Southeastern Gonzales County in south central Texas...
  Northeastern Karnes County in south central Texas...
  Lavaca County in south central Texas...

* Until 1100 AM CDT.

* At 605 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Cuero, Yoakum, Hallettsville, Yorktown, Shiner, Runge, Nordheim, 
  Hochheim, Cheapside, Thomaston, Westhoff, Ezzell, Sublime, Speaks, 
  Gillett, Edgar, Concrete, Terryville, Dreyer and Arneckville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

LAT...LON 2908 9790 2962 9686 2934 9656 2906 9694
      2910 9698 2886 9731 2893 9742 2876 9765

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

MO

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 12, 2:02 AM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, Jun 12, 2:02 AM CDT, 4 hours 3 minutes before

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
202 AM CDT Thu Jun 12 2025

...New SHORT TERM, LONG TERM...

.SHORT TERM...
(Today through Friday)
Issued at 128 AM CDT Thu Jun 12 2025

Key messages:

- Flood Watch continues through the day today.

- Locally heavy rain likely along and east of Hwy 281.

An upper level trough is moving across TX tonight, and there is a
stationary front stretched over Central TX. A line of thunderstorms
is moving across the I-35 Corridor, and there are isolated cells
ahead of the line in the Coastal Plains. This convection will
continue into the start of the new forecast period. Storm movement is
slow, and they are producing high rainfall rates. Excessive rainfall
is possible. We will continue the Flood Watch over the eastern half
of the area through the day today. Additional rainfall of one to
three inches with isolated higher amounts will be possible. Showers
and storms will move away from the area tonight as the upper trough
moves off to the northeast. The low level flow will remain from the
south to southeast keeping the airmass warm and moist. A weak
shortwave trough in the northwesterly flow aloft may provide enough
lift to generate isolated showers and thunderstorms during the day
Friday. Conditions do not look favorable for strong storms or heavy
rain.

&&

.LONG TERM...
(Friday night through Wednesday)
Issued at 128 AM CDT Thu Jun 12 2025

Key messages:

- Drier weather returns.

An upper level ridge will build into West TX Friday night keeping
the weather dry over our western area. This will keep northwesterly
flow aloft over the eastern part of the CWA. The low level flow will
continue warm and moist. With daytime heating there will be low
chances for showers and thunderstorms each afternoon Saturday through
Monday over the eastern half of the area. Tuesday the upper ridge
should build far enough east to dry out the entire CWA. Then
Wednesday it will retreat back to the west allowing low rain chances
over the east again.

&&

.AVIATION...
(06Z TAFS)
Issued at 1231 AM CDT Thu Jun 12 2025

Thunderstorms are moving into the San Antonio area and ceilings have
lowered. Any storm that moves across an airport will reduce
visibility and produce strong, gusty winds. Storms should move into
Austin within the next hour. There's about a three hour window for
storms to move through. Once the line moves through, there will be
isolated showers with lightning possible. All of the rain should be
gone by around noon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              87  74  94  76 /  60  10  20   0
Austin Bergstrom Intl Airport  86  73  93  76 /  70  10  20   0
New Braunfels Muni Airport     88  73  93  75 /  80  10  20   0
Burnet Muni Airport            87  72  91  74 /  40   0  10   0
Del Rio Intl Airport           97  78 101  78 /   0   0   0   0
Georgetown Muni Airport        85  73  92  75 /  50   0  20   0
Hondo Muni Airport             90  74  95  75 /  50   0  10   0
San Marcos Muni Airport        87  73  93  75 /  80  10  20   0
La Grange - Fayette Regional   84  75  90  76 /  90  20  40   0
San Antonio Intl Airport       88  76  94  77 /  70  10  20   0
Stinson Muni Airport           90  76  95  78 /  70  10  20   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through this evening for Bandera-Bastrop-Bexar-Blanco-
Burnet-Caldwell-Comal-De Witt-Fayette-Gillespie-Gonzales-Guadalupe-
Hays-Karnes-Kendall-Kerr-Lavaca-Lee-Llano-Medina-Travis-Williamson-
Wilson.

&&

Short-Term...05
Long-Term...05
Aviation...05

In the hours before

Local storm report, Jun 12, 4:46 AM CDT, 1 hour 19 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
446 AM CDT Thu Jun 12 2025

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

0440 AM     Flash Flood      2 ENE Selma             29.60N 98.28W
06/12/2025                   Guadalupe          TX   Broadcast Media

            Photo of cars submerged due to flooding on
            the main lanes of I-35 at FM3009.

&&

MB

Local storm report, Jun 12, 4:49 AM CDT, 1 hour 16 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
449 AM CDT Thu Jun 12 2025

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

0411 AM     Rain             2 N Cibolo              29.60N 98.25W
06/12/2025  M6.10 Inch       Guadalupe          TX   Public

&&

JR

Local storm report, Jun 12, 4:59 AM CDT, 1 hour 6 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
459 AM CDT Thu Jun 12 2025

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

0358 AM     Flash Flood      4 S San Marcos          29.83N 97.94W
06/12/2025                   Hays               TX   Emergency Mngr

            Low water crossing closed due to cottonwood
            creek along Old Bastrop Hwy at Capistrano
            Dr.

&&

MB

Special weather statement, Jun 12, 5:04 AM CDT, 1 hour 1 minute before

Special Weather Statement
National Weather Service Austin/San Antonio TX
504 AM CDT Thu Jun 12 2025

TXZ205-221-121045-
Bexar TX-Wilson TX-
504 AM CDT Thu Jun 12 2025

...A strong thunderstorm will impact portions of central Wilson and
southeastern Bexar Counties through 545 AM CDT...

At 503 AM CDT, Doppler radar was tracking a strong thunderstorm near
Stinson Municipal Airport, moving east at 45 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, Floresville, Poth, Stockdale, Stinson Municipal Airport,
Kosciusko, Elmendorf, Calaveras Lake, Sutherland Springs, Sandy Oaks,
Buena Vista, Mitchell Lake, Losoya, Parita, Southton, Canada Verde,
Thelma, Brooks City Base, and Braunig Lake.

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 2920 9863 2938 9859 2929 9786 2908 9792
      2904 9798
TIME...MOT...LOC 1003Z 282DEG 37KT 2928 9853

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

Brady

Local storm report, Jun 12, 5:43 AM CDT, 22 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
543 AM CDT Thu Jun 12 2025

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

0511 AM     Flash Flood      1 WSW Windcrest         29.51N 98.40W
06/12/2025                   Bexar              TX   Trained Spotter

            High water rescue on I-35 near the Windcrest
            Business Park.

&&

BF

Special weather statement, Jun 12, 5:49 AM CDT, 16 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
549 AM CDT Thu Jun 12 2025

TXZ222>225-121130-
Karnes TX-Lavaca TX-De Witt TX-Gonzales TX-
549 AM CDT Thu Jun 12 2025

...Strong thunderstorms will impact portions of DeWitt, southeastern
Karnes, southeastern Gonzales and southwestern Lavaca Counties
through 630 AM CDT...

At 549 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Shiner to near Goliad. 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...
Cuero, Yoakum, Hallettsville, Yorktown, Shiner, Nordheim, Cheapside,
Thomaston, Hochheim, Westhoff, Worthing, Edgar, Terryville,
Meyersville, Koerth, Glaze City, Mont, Sweet Home, Dreyer, and
Arneckville.

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.

&&

LAT...LON 2905 9705 2887 9730 2890 9734 2892 9742
      2872 9770 2948 9741 2949 9690
TIME...MOT...LOC 1049Z 259DEG 17KT 2943 9719 2871 9748

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

MO

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 8:03 PM CDT	Special Weather Statement	EWX	Burnet	27 min
Jun 11, 8:20 PM CDT	Special Weather Statement	EWX	Gillespie	40 min
Jun 11, 10:10 PM CDT	Special Weather Statement	EWX	Blanco	35 min
Jun 11, 10:16 PM CDT	Areal Flood Advisory	EWX	Bandera, Bexar, Blanco, Burnet, Comal, Gillespie and 3 more	4 hr
Jun 11, 10:50 PM CDT	Special Weather Statement	EWX	Blanco	55 min
Jun 11, 10:54 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Comal, Kendall	36 min
Jun 11, 11:08 PM CDT	Areal Flood Advisory	EWX	Bandera, Bexar, Medina	4 hr
Jun 11, 11:11 PM CDT	Special Weather Statement	EWX	Bexar	34 min
Jun 11, 11:29 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Blanco, Comal, Hays, Kendall, Medina	5 hr
Jun 11, 11:40 PM CDT	Severe Thunderstorm Warning	EWX	Bexar	32 min
Jun 11, 11:51 PM CDT	Tornado Warning	EWX	Bexar	24 min
Jun 12, 12:09 AM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Guadalupe, Hays	31 min
Jun 12, 12:15 AM CDT	Special Weather Statement	EWX	Medina	45 min
Jun 12, 12:19 AM CDT	Special Weather Statement	EWX	Bexar	41 min
Jun 12, 12:20 AM CDT	Special Weather Statement	EWX	Comal, Hays	40 min
Jun 12, 12:40 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Comal, Guadalupe, Hays	4 hr
Jun 12, 12:58 AM CDT	Special Weather Statement	EWX	Bexar, Medina	62 min
Jun 12, 1:00 AM CDT	Special Weather Statement	EWX	Comal, Hays, Travis	60 min
Jun 12, 1:02 AM CDT	Areal Flood Advisory	EWX	Gillespie, Kerr, Llano	118 min
Jun 12, 1:04 AM CDT	Severe Thunderstorm Warning	EWX	Comal, Hays	41 min
Jun 12, 1:05 AM CDT	Tornado Warning	EWX	Hays	12 min
Jun 12, 1:27 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Caldwell, Comal, Guadalupe, Hays	4 hr
Jun 12, 1:30 AM CDT	Special Weather Statement	EWX	Fayette, Lavaca	60 min
Jun 12, 1:41 AM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lavaca	34 min
Jun 12, 1:47 AM CDT	River Flood Warning	EWX	Bexar	24 hr
Jun 12, 1:48 AM CDT	Special Weather Statement	EWX	Bexar, Caldwell, Comal, Guadalupe	57 min
Jun 12, 2:10 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bandera, Medina	5 hr
Jun 12, 2:20 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Comal, Guadalupe	4 hr
Jun 12, 2:55 AM CDT	Special Weather Statement	EWX	Comal	50 min
Jun 12, 3:10 AM CDT	Special Weather Statement	EWX	Bexar	50 min
Jun 12, 3:17 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Medina	6 hr
Jun 12, 3:21 AM CDT	Areal Flood Advisory	EWX	Caldwell, Gonzales, Guadalupe	5 hr
Jun 12, 3:47 AM CDT	Special Weather Statement	EWX	Comal	43 min
Jun 12, 3:58 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Guadalupe, Wilson	6 hr
Jun 12, 4:07 AM CDT	River Flood Warning	EWX	Bexar, Medina	9 hr
Jun 12, 4:11 AM CDT	Areal Flood Advisory	EWX	Bexar, Blanco, Comal, Hays, Kendall	4 hr
Jun 12, 4:13 AM CDT	River Flood Warning	EWX	Bexar	28 hr
Jun 12, 4:21 AM CDT	River Flood Warning	EWX	Bexar	31 hr
Jun 12, 4:22 AM CDT	River Flood Warning	EWX	Bexar, Wilson	43 hr
Jun 12, 4:29 AM CDT	Special Weather Statement	EWX	Gonzales	46 min
Jun 12, 5:04 AM CDT	Special Weather Statement	EWX	Wilson	41 min
Jun 12, 5:12 AM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays	5 hr
Jun 12, 5:24 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar, Caldwell, DeWitt, Fayette, Gonzales and 4 more	5 hr
Jun 12, 5:49 AM CDT	Special Weather Statement	EWX	DeWitt	41 min
Jun 12, 6:19 AM CDT	Areal Flood Advisory	EWX	Medina	4 hr
Jun 12, 6:40 AM CDT	Areal Flood Advisory	EWX	Guadalupe	3 hr
Jun 12, 6:46 AM CDT	Special Weather Statement	EWX	Atascosa	44 min
Jun 12, 7:11 AM CDT	Areal Flood Advisory	EWX	Bandera, Medina	3 hr
Jun 12, 8:22 AM CDT	River Flood Warning	EWX	Comal, Gonzales, Guadalupe	6 hr
Jun 12, 8:55 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Atascosa, Karnes, Wilson	6 hr
Jun 12, 9:32 AM CDT	Areal Flood Advisory	EWX	Bandera, Bexar, Medina	3 hr
Jun 12, 9:51 AM CDT	Areal Flood Advisory	EWX	Bexar, Guadalupe, Wilson	3 hr
Jun 12, 10:41 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Atascosa, Bexar, Medina	3 hr
Jun 12, 1:36 PM CDT	River Flood Warning	EWX	Bexar	23 hr
Jun 12, 2:33 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Bandera	3 hr
Jun 12, 2:46 PM CDT	Areal Flood Advisory	EWX	Atascosa, Karnes, Wilson	2 hr
Jun 12, 2:54 PM CDT	River Flood Warning	EWX	Karnes, Wilson	66 hr
Jun 12, 3:01 PM CDT	River Flood Warning	EWX	Karnes, Wilson	29 hr
Jun 12, 3:01 PM CDT	River Flood Warning	EWX	Karnes	43 hr
Jun 12, 3:31 PM CDT	Areal Flood Advisory	EWX	Bandera, Real, Uvalde	3 hr
Jun 12, 3:33 PM CDT	Special Weather Statement	EWX	Uvalde	42 min
Jun 12, 4:16 PM CDT	Special Weather Statement	EWX	Uvalde	44 min
Jun 12, 4:20 PM CDT	Severe Thunderstorm Warning	EWX	Uvalde	26 min

Nearby

Flash Flood Warnings in Texas, 2025 Every flash flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.