Alert archive / Texas / Flash Flood Warnings in 2026

Flash Flood Warning 28, NWS Austin/San Antonio, TX

June 5, 2026Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 5, 2026, 7:46 PM CDT for Lavaca County, Texas. It was in force for 4 hr. 2 reports 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 5, 2026, 7:46 PM CDT (00:46 UTC)
Expired: Jun 6, 2026, 12:00 AM CDT
In force: 4 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 118 km from the middle of the area, began a volume at 00:47 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 5, 8:10 PM CDT	FLASH FLOOD	1 Ese Hallettsville, TX	flooding ongoing with high water on CR 128 and Edna Street.
Jun 5, 8:10 PM CDT	FLASH FLOOD	1 Nnw Hallettsville, TX	flooding ongoing with high water near CR 198 and FM 957.

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 2 storm reports to this flash flood warning; the first came 24 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, 0.8 hours before the alert went out and 197 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: 767 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 919 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

356 
WGUS54 KEWX 060046
FFWEWX
TXC285-060500-
/O.NEW.KEWX.FF.W.0028.260606T0046Z-260606T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
746 PM CDT Fri Jun 5 2026

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

* Flash Flood Warning for...
  Central Lavaca County in south central Texas...

* Until midnight CDT tonight.

* At 746 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 5 inches of rain 
  have fallen. Additional rainfall amounts up 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.

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

* Some locations that will experience flash flooding include...
  Yoakum, Hallettsville, Ezzell, Sublime, Mont, Worthing, Vsetin, 
  Koerth, Vienna, Wied, Breslau, Sweet Home and Mount Olive.

Social media reports indicate the creeks in and around Hallettsville 
are out of banks and will only rise higher with these additional 
rains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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

&&

LAT...LON 2927 9713 2928 9714 2948 9713 2958 9684
      2958 9683 2958 9679 2957 9679 2954 9675
      2950 9672 2949 9671 2948 9670 2947 9669
      2945 9667 2943 9665 2923 9690

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 5, 7:06 PM CDT, 40 minutes earlier. Its key messages:

-There is higher confidence that pockets of heavy rainfall will lead to isolated flooding through tonight. A Flood Watch has been issued for Burnet County, the I-35 corridor from Bexar County northward, and the Coastal Plains.
Rain chances continue Saturday, but any storms tonight will impact how activity develops during the day.
Warmer temperatures return next week, with some low rain chances mainly along and east of I-35 early in the week.

Area forecast discussion, Jun 5, 7:06 PM CDT, 40 minutes before

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
706 PM CDT Fri Jun 5 2026

...New AVIATION...

.KEY MESSAGES...

-There is higher confidence that pockets of heavy rainfall will
 lead to isolated flooding through tonight. A Flood Watch has
 been issued for Burnet County, the I-35 corridor from Bexar
 County northward, and the Coastal Plains.

- Rain chances continue Saturday, but any storms tonight will
  impact how activity develops during the day.

- Warmer temperatures return next week, with some low rain chances
  mainly along and east of I-35 early in the week.

&&

.SHORT TERM...
(Tonight through Saturday night)
Issued at 148 PM CDT Fri Jun 5 2026

The remnants of the decayed storm system that moved across the Rio
Grande early this morning is seen on radar over the Hill Country and
Rio Grande Plains with scattered showers and thunderstorms east of
this feature at the time of this writing. High PWATS clocking in at
over 2 inches are forecast today which is over the 90th percentile
climatologically for this time of year. Scattered storms will be
efficient rain-makers with high rain rates which will likely lead to
isolated pockets of flooding. Any training of storms will also
contribute to flooding as some soils are already saturated across
the area. Some of the stronger storms could also produce gusty wind
around 40 mph.

Latest guidance has been consistent in localized amounts of 6-8
inches over some portion of the area which has promoted the issuance
of a Flood Watch through late tonight. This includes Burnet County,
the I-35 corridor from Bexar County north and much of the Coastal
Plains. There is lesser confidence for Bexar County, though recent
flooding this morning across the county would mean any additional
storms that move over the area would quickly produce flooding.

Further west there could be some isolated development late this
afternoon, but we will also have to watch for storm development
again across portions of West Texas and Mexico late this afternoon
which could send another complex of storms across the Rio Grande
tonight, though models widely vary on this solution.

What happens today and tonight will play into how things develop for
tomorrow. An upper low will be just northwest of the area Saturday
afternoon, then lifts northeast out of Texas Saturday night. Most
activity on Saturday should be north of the area where greater lift
is located, but with above normal moisture still in place chances
for isolated showers and thunderstorms remain in the forecast.

&&

.LONG TERM...
(Sunday through next Friday)
Issued at 148 PM CDT Fri Jun 5 2026

The upper low which contributed to our wet short-term forecast lifts
northeast into the Central Plains on Sunday. Low rain chances
continue Sunday afternoon, mainly along and east of I-35 though with
only isolated coverage, most will remain dry. Overcast skies Sunday
morning will begin to clear as far east as the Hill Country Sunday
with temperatures rising a few degrees from previous days. Highs
will range from the upper 80s to mid 90s with heat index values in
the triple digits for a good chunk of South Central Texas.

With the subtropical high over the area next week, drier and warmer
conditions make a return. Any rain chances during this time will
mostly be limited to the seabreeze with no other notable strong
forcing mechanisms. Temperatures warm slightly next week with heat
indices hovering between the mid 90s to low 100s depending on the
location. Sunday and beyond, South Central Texas remains in a period
of minor to moderate heat risk so practicing heat safety measures is
recommended.

&&

.AVIATION...
(00Z TAFS)
Issued at 701 PM CDT Fri Jun 5 2026

With active weather over the area, the TAF plans were not adjusted
much off the midday thinking. Convective activity looks to be
peaking soon and should wind down in the the late evening. Will
end the concerns for thunder by 04Z with no expected prevailing
weather to be concerned about after midnight save for a few
pockets of fog. IFR CIGs over I-35 seem reasonable given recent
trends and the new rounds of rain to soak the soils and saturate
low levels. Slightly more stable weather is expected for Saturday
afternoon, but a PROB30 inherited still looks reasonable given the
PWat values that will probably not lower too quickly.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              72  87  74  90 /  80  40  30  20
Austin Bergstrom Intl Airport  73  87  75  89 /  70  40  40  20
New Braunfels Muni Airport     71  87  73  89 /  70  30  30  10
Burnet Muni Airport            70  85  72  88 /  80  40  50  10
Del Rio Intl Airport           71  91  75  94 /  50  20  20   0
Georgetown Muni Airport        71  86  73  89 /  80  40  40  20
Hondo Muni Airport             71  87  73  89 /  50  20  30  10
San Marcos Muni Airport        72  87  74  89 /  60  40  40  20
La Grange - Fayette Regional   73  86  75  88 /  70  50  20  40
San Antonio Intl Airport       72  87  75  89 /  60  20  30  10
Stinson Muni Airport           72  88  75  90 /  50  20  20  10

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 1 AM CDT Saturday for TXZ172-173-191>194-
205>209-221>225.

&&

SHORT TERM...27
LONG TERM....27
AVIATION...18

In the hours before

Special weather statement, Jun 5, 4:56 PM CDT, 2 hours 50 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
456 PM CDT Fri Jun 5 2026

TXZ183-202-052245-
Kinney TX-Val Verde TX-
456 PM CDT Fri Jun 5 2026

...A strong thunderstorm will impact portions of northwestern Kinney
and southeastern Val Verde Counties through 545 PM CDT...

At 455 PM CDT, Doppler radar was tracking a strong thunderstorm near
Cienegas Terrace, or 7 miles west of Del Rio, moving east at 30 mph.

HAZARD...Winds in excess of 40 mph and half inch 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...
Del Rio, Lake View, Val Verde Park, Standart, Cienegas Terrace,
Amanda, Laughlin AFB, Escondido Estates, Lake Ridge Ranch, and San
Pedro Canyon.

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.

&&

LAT...LON 2955 10059 2926 10056 2925 10080 2926 10081
      2926 10084 2927 10085 2928 10087 2931 10089
      2933 10094 2935 10095 2936 10100 2944 10106
TIME...MOT...LOC 2155Z 260DEG 27KT 2935 10101

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

62

Local storm report, Jun 5, 5:52 PM CDT, 1 hour 54 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
552 PM CDT Fri Jun 5 2026

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

0542 PM     Tstm Wnd Gst     2 WNW Del Rio           29.38N 100.93W
06/05/2026  M56 MPH          Val Verde          TX   ASOS

            ASOS station KDRT Del Rio Intl Airport.

&&

MB

Special weather statement, Jun 5, 5:53 PM CDT, 1 hour 53 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
553 PM CDT Fri Jun 5 2026

TXZ183-202-052345-
Kinney TX-Val Verde TX-
553 PM CDT Fri Jun 5 2026

...A strong thunderstorm will impact portions of northwestern Kinney
and southeastern Val Verde Counties through 645 PM CDT...

At 552 PM CDT, Doppler radar was tracking a strong thunderstorm over
Val Verde Park, or near Del Rio, moving east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch 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...
Del Rio, Standart, Amanda, Laughlin AFB, Val Verde Park, and
Escondido Estates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2931 10086 2943 10091 2954 10059 2927 10053
TIME...MOT...LOC 2252Z 258DEG 11KT 2936 10083

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

62

Local storm report, Jun 5, 7:29 PM CDT, 17 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
729 PM CDT Fri Jun 5 2026

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

0717 PM     Flash Flood      4 NW Liberty Hill       30.72N 97.96W
06/05/2026                   Williamson         TX   Public

            Social media picture of the intersection of
            CR 201 and CR 206 flooded with a few feet of
            water and still rising.

&&

MB

Local storm report, Jun 5, 7:34 PM CDT, 12 minutes before

Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
734 PM CDT Fri Jun 5 2026

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

0645 PM     Flash Flood      4 S Briggs              30.83N 97.93W
06/05/2026                   Burnet             TX   Dept of Highways

            FM 243 closed due to water on roadway east
            of Mahomet in Burnet County. Additional
            reports that CR 214, CR 213 and CR 212 have
            water on road and are barely passable.

&&

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 7:30 PM CDT	Areal Flood Advisory	EWX	Caldwell	3 hr
Jun 5, 7:36 PM CDT	Areal Flood Advisory	EWX	DeWitt, Fayette, Lavaca	3 hr
Jun 5, 7:49 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Travis	5 hr
Jun 5, 8:12 PM CDT	Special Weather Statement	EWX	Kinney	48 min
Jun 5, 8:14 PM CDT	Special Weather Statement	EWX	Kinney	46 min
Jun 5, 8:15 PM CDT	Areal Flood Advisory	EWX	Hays, Travis	4 hr
Jun 5, 9:24 PM CDT	Areal Flood Advisory	EWX	Bexar	3 hr
Jun 5, 10:26 PM CDT	Areal Flood Advisory	EWX	Fayette	4 hr
Jun 6, 12:07 AM CDT	River Flood Warning	EWX	Williamson	8 hr
Jun 6, 12:28 AM CDT	Areal Flood Advisory	EWX	Williamson	5 hr
Jun 6, 12:46 AM CDT	Areal Flood Advisory	EWX	Travis	5 hr
Jun 6, 12:49 AM CDT	Areal Flood Advisory	EWX	Burnet, Williamson	5 hr
Jun 6, 6:38 PM CDT	Special Weather Statement	EWX	Maverick	52 min

Nearby

Flash Flood Warnings in Texas, 2026 Every flash flood warning in 2026

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.