Alert archive / Texas / Flash Flood Warnings in 2025

Flash Flood Warning 63, NWS Austin/San Antonio, TX

July 5, 2025Bexar County, Comal County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 5, 2025, 10:32 AM CDT for Bexar County, Comal County, Texas. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 5, 2025, 10:32 AM CDT (15:32 UTC)
Expired: Jul 5, 2025, 3:35 PM CDT
In force: 5 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties Bexar County, TX, Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 25 km from the middle of the area, began a volume at 15:32 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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

Del Rio, TX (KDRT), launched 12:00Z, 3.5 hours before the alert went out and 253 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: 1977 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 769 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 191 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted.

124 
WGUS54 KEWX 051532
FFWEWX
TXC029-091-051900-
/O.NEW.KEWX.FF.W.0063.250705T1532Z-250705T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1032 AM CDT Sat Jul 5 2025

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

* Flash Flood Warning for...
  Northeastern Bexar County in south central Texas...
  South Central Comal County in south central Texas...

* Until 200 PM CDT.

* At 1032 AM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 2 inches of rain have fallen. Additional rainfall amounts of 
  1 to 2 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 and automated gauges.

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

* Some locations that will experience flash flooding include...
  San Antonio, New Braunfels, Schertz, Cibolo, Converse, Universal 
  City, Live Oak, Selma, Randolph AFB, San Antonio Int Airport, 
  Canyon Lake, Kirby, Windcrest, Bulverde, Garden Ridge, Hollywood 
  Park, St. Hedwig, Smithson Valley, Timberwood Park and Zuehl.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 2978 9822 2966 9814 2959 9831 2956 9830
      2954 9827 2955 9822 2953 9822 2951 9819
      2949 9818 2950 9818 2950 9817 2948 9816
      2948 9814 2946 9812 2942 9833 2958 9849
      2970 9850 2992 9824

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

$$

MM

2 follow-up statements

412 
WGUS54 KEWX 051826
FFWEWX
TXC029-091-052100-
/O.EXT.KEWX.FF.W.0063.000000T0000Z-250705T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
126 PM CDT Sat Jul 5 2025

The National Weather Service in Austin/San Antonio has extended the

* Flash Flood Warning for...
  Northeastern Bexar County in south central Texas...
  South Central Comal County in south central Texas...

* Until 400 PM CDT.

* At 126 PM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2 and 5 inches of rain have fallen. Additional rainfall amounts up 
  to 1 inch are possible in the warned area. Flash flooding is 
  already occurring.

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

  SOURCE...Radar and automated gauges.

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

* Some locations that will experience flash flooding include...
  San Antonio, New Braunfels, Schertz, Cibolo, Converse, Universal 
  City, Live Oak, Selma, Randolph AFB, San Antonio Int Airport, 
  Canyon Lake, Kirby, Windcrest, Bulverde, Garden Ridge, Hollywood 
  Park, St. Hedwig, Smithson Valley, Timberwood Park and Zuehl.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 2978 9822 2966 9814 2959 9831 2956 9830
      2954 9827 2955 9822 2953 9822 2951 9819
      2949 9818 2950 9818 2950 9817 2948 9816
      2948 9814 2946 9812 2942 9833 2958 9849
      2970 9850 2992 9824

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

$$

MM

976 
WGUS74 KEWX 052035
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
335 PM CDT Sat Jul 5 2025

TXC029-091-052045-
/O.CAN.KEWX.FF.W.0063.000000T0000Z-250705T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bexar TX-Comal TX-
335 PM CDT Sat Jul 5 2025

...FLASH FLOOD WARNING FOR NORTHEASTERN BEXAR AND SOUTH CENTRAL 
COMAL COUNTIES HAS BEEN REPLACED WITH A FLOOD ADVISORY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1000 PM CDT Saturday for a 
portion of south central Texas.

&&

LAT...LON 2978 9822 2966 9814 2959 9831 2956 9830
      2954 9827 2955 9822 2953 9822 2951 9819
      2949 9818 2950 9818 2950 9817 2948 9816
      2948 9814 2946 9812 2942 9833 2958 9849
      2970 9850 2992 9824

$$

MM

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 Jul 5, 6:36 AM CDT, 3 hours 56 minutes earlier. Its key messages:

Threat of Flash Flooding from slow moving and repeat heavy rains today. A Flood Watch has been issued for the Hill Country and I-35 corridor through 7 PM CDT.
Continued unseasonably wet and "cool" for the Independence Day weekend into Monday.
Turning seasonably drier and warmer this coming week.

Area forecast discussion, Jul 5, 6:36 AM CDT, 3 hours 56 minutes before

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
636 AM CDT Sat Jul 5 2025

...New AVIATION...

.KEY MESSAGES...

- Threat of Flash Flooding from slow moving and repeat heavy rains
today. A Flood Watch has been issued for the Hill Country and I-35
corridor through 7 PM CDT.

- Continued unseasonably wet and "cool" for the Independence Day
weekend into Monday.

- Turning seasonably drier and warmer this coming week.

&&

.SHORT TERM...
(Today through Sunday)
Issued at 110 AM CDT Sat Jul 5 2025

A mid level MCV and unseasonably moist airmass (05/00Z soundings
showed 2.1 inch PWs at Del Rio and Corpus Christi which are in the
90 percentile plus) remain in place over our area. This feature and
moist airmass linger over our area through this weekend. Forcing by
this feature along with heating will generate rounds of showers and
isolated thunderstorms. Storm motion vectors show slow moving and
repeat activity to enhance efficient warm rain processes. As a
result, locally heavy rains with amounts of generally 2 to 4 inches
are expected with isolated amounts up to 10 inches possible. These
amounts will aggravate ongoing flooding and likely create new
flooding as soils are saturated making runoff more rapid. The
heaviest rains will be over the Hill Country to along and east of
the I-35 corridor today. Have issued a Flood Watch through 7 PM CDT
for those areas. Most models show the rains shifting to our western
areas on Sunday. There is a potential for another Flood Watch for
Sunday. The clouds and rain areas will conspire to keep daytime
temperatures below to well below early July averages.

&&

.LONG TERM...
(Sunday night through Friday)
Issued at 110 AM CDT Sat Jul 5 2025

The mid level feature remains in close proximity to generate showers
and isolated thunderstorms on Monday with a possibility of locally
heavy downpours. Have expanded the slight chances to most of our area
for Monday. Most models/ensembles show the Subtropical Ridge shoving
the mid level feature away from our area while bringing increased
subsidence and decreasing moisture levels to keep rainfall out of the
forecast for the remainder of this coming week. However, an inverted
trough moving in from the east may bring chances of showers and
isolated thunderstorms on Tuesday and Wednesday per GFS. Later
forecasts may introduce rain chances should this become a trend.
Increased sunshine leads to temperatures warming to near to slightly
above mid July averages.

&&

.AVIATION...
(12Z TAFS)
Issued at 636 AM CDT Sat Jul 5 2025

Mainly MVFR CIGs mix to VFR by midday, then return tonight. Areas of
SHRA/ISOLD TSRA will continue over the eastern Hill Country to along
and east of I-35 through today, then shift to the west by Sunday.
Have SHRA/VCSH this morning and PROB30s for TSRA this afternoon at
the I-35 sites. A mix of CIGS/VSBYs can be expected in SHRA/TSRA. S
to SE winds prevail.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              85  73  92  73 /  70  20  20  10
Austin Bergstrom Intl Airport  85  73  91  72 /  60  20  20  10
New Braunfels Muni Airport     86  73  91  72 /  70  20  20  10
Burnet Muni Airport            81  72  88  71 /  70  30  20  10
Del Rio Intl Airport           97  75  91  75 /  10  20  40  10
Georgetown Muni Airport        82  72  89  72 /  70  20  10   0
Hondo Muni Airport             85  73  87  72 /  40  20  30  10
San Marcos Muni Airport        84  73  91  72 /  70  20  20  10
La Grange - Fayette Regional   87  73  93  73 /  50  10  10   0
San Antonio Intl Airport       85  74  90  74 /  60  20  30  10
Stinson Muni Airport           88  75  92  74 /  60  20  20  10

&&

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

&&

Short-Term...04
Long-Term...04
Aviation...04

In the hours before

Local storm report, Jul 5, 5:03 AM CDT, 5 hours 29 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
503 AM CDT Sat Jul 5 2025

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

0502 AM     Flash Flood      9 NNE Burnet            30.88N 98.18W
07/05/2025                   Burnet             TX   Emergency Mngr

            Inundated homes on RM 2340 near Allen Branch
            Creek.

&&

JR

Local storm report, Jul 5, 5:05 AM CDT, 5 hours 27 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
505 AM CDT Sat Jul 5 2025

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

0504 AM     Flash Flood      Bertram                 30.75N 98.05W
07/05/2025                   Burnet             TX   Public

            Flooded and impassable road on FM 243 and Fm
            1174.

&&

JR

Local storm report, Jul 5, 5:08 AM CDT, 5 hours 24 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
508 AM CDT Sat Jul 5 2025

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

0508 AM     Flash Flood      2 NNE Jonestown         30.51N 97.91W
07/05/2025                   Travis             TX   Emergency Mngr

            Lone Mountain Pass, near Jonestown, under
            water and impassable.

&&

JR

Local storm report, Jul 5, 7:22 AM CDT, 3 hours 10 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
722 AM CDT Sat Jul 5 2025

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

0655 AM     Flash Flood      3 E Marble Falls        30.58N 98.23W
07/05/2025                   Burnet             TX   Emergency Mngr

            RV Park along Hamilton Creek has at least
            four feet water of water inundation and
            vehicles floating. Residents stranded.

&&

JR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 8:00 PM CDT	River Flood Warning	EWX	Llano	13 hr
Jul 4, 9:27 PM CDT	Areal Flood Advisory	EWX	Burnet, Travis	85 min
Jul 4, 10:52 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Burnet, Travis	2 hr
Jul 5, 12:00 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Travis, Williamson	3 hr
Jul 5, 12:41 AM CDT	Flood Watch	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 15 more	45 hr
Jul 5, 12:41 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	EWX	Travis	4 hr
Jul 5, 2:04 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Burnet, Williamson	4 hr
Jul 5, 2:47 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Burnet, Travis, Williamson	5 hr
Jul 5, 2:57 AM CDT	River Flood Warning	EWX	Williamson	24 hr
Jul 5, 4:44 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Burnet	4 hr
Jul 5, 4:59 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	EWX	Burnet, Travis, Williamson	14 hr
Jul 5, 6:40 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, DeWitt, Fayette, Gonzales, Guadalupe and 3 more	3 hr
Jul 5, 8:16 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Caldwell, Gonzales, Guadalupe	6 hr
Jul 5, 8:56 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Caldwell	3 hr
Jul 5, 9:16 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Williamson	5 hr
Jul 5, 9:21 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Guadalupe	5 hr
Jul 5, 9:46 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Comal, Hays	6 hr
Jul 5, 10:19 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Travis	9 hr
Jul 5, 11:04 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	EWX	Comal	7 hr
Jul 5, 11:50 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Comal	3 hr
Jul 5, 12:33 PM CDT	River Flood Warning	EWX	Comal, Guadalupe	7 hr
Jul 5, 12:33 PM CDT	River Flood Warning	EWX	Comal, Guadalupe	7 hr
Jul 5, 1:42 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Blanco, Burnet	6 hr
Jul 5, 1:55 PM CDT	Areal Flood Advisory	EWX	Guadalupe	77 min
Jul 5, 2:04 PM CDT	Areal Flood Advisory	EWX	Caldwell, Gonzales, Guadalupe	3 hr
Jul 5, 2:20 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal	2 hr
Jul 5, 2:23 PM CDT	Areal Flood Advisory	EWX	Williamson	97 min
Jul 5, 3:12 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Blanco, Burnet, Llano	4 hr
Jul 5, 3:32 PM CDT	Areal Flood Advisory	EWX	Comal	65 min
Jul 5, 3:35 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal	63 min
Jul 5, 3:39 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Burnet	3 hr
Jul 5, 6:25 PM CDT	Areal Flood Advisory	EWX	Comal	3 hr
Jul 5, 6:57 PM CDT	Areal Flood Advisory	EWX	Burnet	3 hr
Jul 5, 6:59 PM CDT	Areal Flood Advisory	EWX	Burnet, Travis, Williamson	3 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.