Alert archive / Texas / Flash Flood Warnings in 2026

Flash Flood Warning 9, NWS Corpus Christi, TX

May 27, 2026Webb County, Texas

NWS Corpus Christi, TX issued this flash flood warning at May 27, 2026, 3:31 AM CDT for Webb 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: May 27, 2026, 3:31 AM CDT (08:31 UTC)
Expired: May 27, 2026, 8:30 AM CDT
In force: 5 hr
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Webb County, TX

The radar

The Laughlin AFB radar (KDFX), 183 km from the middle of the area, began a volume at 08:32 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 00:00Z, 8.5 hours before the alert went out and 217 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: 539 J/kg
Mixed-layer CIN: -217 J/kg
Mixed-layer LCL: 1197 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

As transmitted.

333 
WGUS54 KCRP 270831
FFWCRP
TXC479-271130-
/O.NEW.KCRP.FF.W.0009.260527T0831Z-260527T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
331 AM CDT Wed May 27 2026

The National Weather Service in Corpus Christi has issued a

* Flash Flood Warning for...
  Webb County in south central Texas...

* Until 630 AM CDT.

* At 331 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to 3 inches of rain have
  fallen. The expected rainfall rate is 1 to 3 inches in 1 hour.
  Additional rainfall amounts of 1 to 3 inches are possible in the
  warned area. Flash flooding is ongoing or expected to begin
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Laredo, Rio Bravo, Ranchitos Las Lomas, Botines, Unitec Industrial
  Park, Callaghan, Orvil, Texas A&M, Doctors Hospital Of Laredo,
  Laredo Country Club, Laredo International Airport, St Augustine
  High School South Laredo, United South High School, Ranchos Penitas
  West, Laredo Community College, Las Tiendas, Aguilares, Columbia
  Bridge, Oilton and Mirando City.

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.

&&

LAT...LON 2806 10002 2803 9939 2788 9882 2738 9880
      2736 9951 2749 9948 2750 9953 2757 9951
      2761 9955 2760 9958 2764 9960 2763 9965
      2766 9966 2766 9971 2777 9981 2776 9984
      2780 9988 2794 9994 2798 9993 2799 9999

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR

$$

EMF

2 follow-up statements

766 
WGUS54 KCRP 271114
FFWCRP
TXC479-271330-
/O.EXT.KCRP.FF.W.0009.000000T0000Z-260527T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
614 AM CDT Wed May 27 2026

The National Weather Service in Corpus Christi has extended the

* Flash Flood Warning for...
  Webb County in south central Texas...

* Until 830 AM CDT.

* At 614 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to 4 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...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Laredo, Rio Bravo, Ranchitos Las Lomas, Botines, Unitec Industrial
  Park, Callaghan, Orvil, Texas A&M, Doctors Hospital Of Laredo,
  Laredo Country Club, Laredo International Airport, St Augustine
  High School South Laredo, United South High School, Ranchos Penitas
  West, Laredo Community College, Las Tiendas, Aguilares, Columbia
  Bridge, Oilton and Mirando City.

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.

&&

LAT...LON 2803 9939 2788 9882 2738 9880 2736 9951
      2749 9948 2750 9953 2757 9951 2761 9955
      2760 9958 2764 9960 2763 9965 2766 9966
      2766 9971 2777 9981 2780 9988 2791 9990
      2794 9994 2798 9993 2799 9999 2806 10002

FLASH FLOOD...RADAR INDICATED

$$

EMF

520 
WGUS74 KCRP 271326
FFSCRP

Flash Flood Statement
National Weather Service Corpus Christi TX
826 AM CDT Wed May 27 2026

TXC479-271336-
/O.EXP.KCRP.FF.W.0009.000000T0000Z-260527T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Webb TX-
826 AM CDT Wed May 27 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 830 AM CDT THIS MORNING FOR
WEBB COUNTY...

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

&&

LAT...LON 2788 9882 2738 9880 2736 9951 2749 9948
      2750 9953 2757 9951 2761 9955 2760 9958
      2764 9960 2763 9965 2766 9966 2766 9971
      2777 9981 2780 9988 2791 9990 2794 9994
      2798 9993 2799 9999 2806 10002 2803 9939

$$

EMF

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 Corpus Christi, TX wrote its last area forecast discussion before this flash flood warning went out at May 27, 1:52 AM CDT, 1 hour 39 minutes earlier. Its key messages:

Updated at 143 AM CDT Wed May 27 2026
Scattered to numerous showers and thunderstorms this morning, bringing a marginal to slight flash flood and severe risk.
Flood Watch in effect through noon today for the southern Brush Country and portions of the Coastal Bend.
Lull in rain chances Thursday night through Saturday

Area forecast discussion, May 27, 1:52 AM CDT, 1 hour 39 minutes before

Area Forecast Discussion
National Weather Service Corpus Christi TX
152 AM CDT Wed May 27 2026

...New DISCUSSION, AVIATION, MARINE, HYDROLOGY...

.KEY MESSAGES...
Updated at 143 AM CDT Wed May 27 2026

- Scattered to numerous showers and thunderstorms this morning,
  bringing a marginal to slight flash flood and severe risk.

- Flood Watch in effect through noon today for the southern Brush
  Country and portions of the Coastal Bend.

- Lull in rain chances Thursday night through Saturday

&&

.DISCUSSION...
Issued at 143 AM CDT Wed May 27 2026

Convection will persist overnight with conditions beginning to
improve by Wednesday midday as another round pushes eastward from
Mexico during the early morning hours. Strong to severe
thunderstorms capable of producing damaging winds and hail will
persist through this period. Already a large swatch of 1-3 inches of
rainfall and more to come, warrants a Flood Watch for the southern
Brush Country and portions of the Coastal Bend.

A slight chance for showers and thunderstorms will continue through
the day thanks to lingering moisture and the sea breeze. Expect a
ridge to begin building in the region by Thursday allowing for
generally warmer and drier conditions.

Chances for showers and storms will return to the region this
weekend as the ridge weakens allowing for shortwaves to creep into
the region. Chances remain low at this time, though it will be
something to watch in future forecast packages. Highs will be in the
80s and 90s through next week.

&&

.AVIATION...
(06Z TAFS)
Issued at 143 AM CDT Wed May 27 2026

Mainly MVFR ceilings have developed around a line of showers and
thunderstorms currently over the Coastal Plains, with a cluster
developing over the Rio Grande Plains. Occasionally, IFR ceilings
have made their appearance inland. We'll continue to high variable
winds up to 35 knots within thunderstorms directly impacting
terminals, followed by low ceilings through this morning. Flash
flooding and hydroplaning is a concern this morning as another
round makes its way across the southern Brush Country and Coastal
Bend, mainly impacting LRD/ALI/CRP. Rain chances decrease as we
head into the afternoon along with conditions improving to VFR
across the region.

&&

.MARINE...
Issued at 143 AM CDT Wed May 27 2026

Moderate to Fresh (BF 4-5) E-SE winds will prevail today. Light to
Gentle (BF 2-3) SE winds will then prevail Thursday through
Saturday. There is a high (60-70%) chance of thunderstorms through
this morning bringing periods of gusty and erratic winds and locally
elevated seas.

&&

.HYDROLOGY...
Issued at 143 AM CDT Wed May 27 2026

An estimated widespread 0.5" to 2.0" of rain has fallen already
early this morning. Another round of showers and storms are lining
up east-west across the southern Brush Country into Coastal Bend,
capable of producing a few more inches of rain. Due to the primed
soils and lower flash flood guidance, a Flood Watch is now in
effect for the aforementioned region through this morning.
Remember, 'turn around, don't drown.'

&&

.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi    85  75  88  75 /  60  30  10   0
Victoria          84  70  88  71 /  70  20  20  10
Laredo            90  73  92  74 /  40  10   0  10
Alice             86  72  88  73 /  60  20  20  10
Rockport          87  77  89  77 /  70  20  10  10
Cotulla           88  72  90  74 /  30  20  10  10
Kingsville        85  73  88  73 /  60  20  20  10
Navy Corpus       85  78  86  78 /  60  20  10   0

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...Flood Watch until noon CDT today for TXZ239>245-342>346-442-443.

GM...None.
&&

DISCUSSION...NC/91
AVIATION...EMF/94

In the hours before

Local storm report, May 27, 3:09 AM CDT, 22 minutes before

Preliminary Local Storm Report
National Weather Service Corpus Christi TX
309 AM CDT Wed May 27 2026

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

0107 AM     Tstm Wnd Dmg     4 WNW Ben Bolt          27.65N 98.15W
05/27/2026                   Jim Wells          TX   Law Enforcement

            Large Trees down near CR 1767 and CR 440.

&&

JM

Local storm report, May 27, 3:11 AM CDT, 20 minutes before

Preliminary Local Storm Report
National Weather Service Corpus Christi TX
311 AM CDT Wed May 27 2026

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

1257 AM     Tstm Wnd Dmg     4 WSW Alice             27.73N 98.12W
05/27/2026                   Jim Wells          TX   Law Enforcement

            Debris in the road near CR 248 and CR 1353.

&&

JM

Local storm report, May 27, 3:17 AM CDT, 14 minutes before

Preliminary Local Storm Report
National Weather Service Corpus Christi TX
317 AM CDT Wed May 27 2026

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

0229 AM     Flash Flood      3 ENE CC Airport        27.80N 97.47W
05/27/2026                   Nueces             TX   Law Enforcement

            Vehicles stranded in flood waters near
            Leopard and North Padre Island drive.

&&

JM

Local storm report, May 27, 3:18 AM CDT, 13 minutes before

Preliminary Local Storm Report
National Weather Service Corpus Christi TX
318 AM CDT Wed May 27 2026

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

0238 AM     Flash Flood      3 E CC Airport          27.79N 97.45W
05/27/2026                   Nueces             TX   Law Enforcement

            Vehicles stranded in flood waters near Agnes
            and Navigation.

&&

JM

Local storm report, May 27, 3:20 AM CDT, 11 minutes before

Preliminary Local Storm Report
National Weather Service Corpus Christi TX
320 AM CDT Wed May 27 2026

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

0229 AM     Flash Flood      3 ENE CC Airport        27.80N 97.46W
05/27/2026                   Nueces             TX   Law Enforcement

            Vehicles stranded in flood waters near I-37
            and McBride Lane.

&&

JM

Special weather statement, May 27, 3:29 AM CDT, 2 minutes before

Special Weather Statement
National Weather Service Corpus Christi TX
329 AM CDT Wed May 27 2026

TXZ229-270900-
La Salle TX-
329 AM CDT Wed May 27 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL LA SALLE COUNTY THROUGH
400 AM CDT...

At 329 AM CDT, Doppler radar was tracking a strong thunderstorm near
Artesia Wells, or 7 miles south of Cotulla, moving northeast at 20
mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Cotulla, Los Angeles, Gardendale, Artesia Wells, and Chaparral
Wildlife Management Area.

This includes Interstate 35 between mile markers 53 and 74.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

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

&&

LAT...LON 2820 9926 2828 9937 2860 9917 2840 9888
TIME...MOT...LOC 0829Z 224DEG 18KT 2834 9919

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

NMP

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:12 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, McMullen	48 min
May 26, 8:55 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	50 min
May 26, 9:23 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, McMullen	37 min
May 26, 9:37 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, Live Oak, McMullen	38 min
May 26, 9:59 PM CDT	Severe Thunderstorm Warning	CRP	Duval, La Salle, McMullen, Webb	46 min
May 26, 10:13 PM CDT	Special Weather Statement	CRP	Live Oak, McMullen	62 min
May 26, 10:40 PM CDT	Severe Thunderstorm Warning	CRP	Duval, Webb	50 min
May 26, 11:11 PM CDT	Special Weather Statement	CRP	Bee, Live Oak	64 min
May 26, 11:16 PM CDT	Special Weather Statement	CRP	Webb	29 min
May 26, 11:27 PM CDT	Severe Thunderstorm Warning	CRP	Webb	24 min
May 26, 11:30 PM CDT	Special Weather Statement	CRP	Webb	45 min
May 26, 11:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Webb	37 min
May 26, 11:58 PM CDT	Special Weather Statement	CRP	Bee, Goliad, Live Oak, Refugio, San Patricio	62 min
May 27, 12:03 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Webb	43 min
May 27, 12:14 AM CDT	Special Weather Statement	CRP	Victoria	31 min
May 27, 12:38 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Jim Wells, Kleberg, Nueces, San Patricio	67 min
May 27, 12:47 AM CDT	Special Marine Warning	CRP		118 min
May 27, 12:56 AM CDT	Special Weather Statement	CRP	Victoria	34 min
May 27, 1:08 AM CDT	Special Weather Statement	CRP	San Patricio	52 min
May 27, 1:27 AM CDT	Special Weather Statement	CRP	Aransas, Calhoun, Refugio	63 min
May 27, 1:33 AM CDT	Flood Watch	CRP	Aransas, Duval, Jim Wells, Kleberg, Nueces, Refugio and 2 more	10 hr
May 27, 1:38 AM CDT	Severe Thunderstorm Warning	CRP	Aransas, Jim Wells, Kleberg, Nueces, Refugio, San Patricio	67 min
May 27, 2:20 AM CDT	Flash Flood Warning	CRP	Aransas, Bee, Calhoun, Jim Wells, Nueces, Refugio and 1 more	6 hr
May 27, 2:26 AM CDT	Special Weather Statement	CRP	Webb	49 min
May 27, 2:43 AM CDT	Severe Thunderstorm Warning	CRP	Aransas, Kleberg, Nueces, San Patricio	32 min
May 27, 2:45 AM CDT	Special Marine Warning	CRP		2 hr
May 27, 2:59 AM CDT	Severe Thunderstorm Warning	CRP	Webb	46 min
May 27, 3:29 AM CDT	Special Weather Statement	CRP	La Salle	31 min
May 27, 3:47 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Webb	43 min
May 27, 3:50 AM CDT	River Flood Warning	CRP	Nueces	54 hr
May 27, 4:00 AM CDT	Special Weather Statement	CRP	Aransas	45 min
May 27, 4:11 AM CDT	Special Weather Statement	CRP	La Salle, McMullen	64 min
May 27, 4:25 AM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Kleberg, La Salle, Live Oak, McMullen and 1 more	35 min
May 27, 4:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Webb	25 min
May 27, 4:41 AM CDT	Areal Flood Advisory	CRP	La Salle, McMullen, Webb	3 hr
May 27, 4:57 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Duval, Jim Wells, Kleberg, Live Oak, McMullen, Nueces and 1 more	63 min
May 27, 5:10 AM CDT	Severe Thunderstorm Warning	CRP	Duval, Jim Wells, Kleberg	50 min
May 27, 5:14 AM CDT	Special Weather Statement	CRP	Live Oak, McMullen	61 min
May 27, 5:46 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Bee, Jim Wells, Kleberg, Live Oak, Nueces, Refugio and 1 more	59 min
May 27, 5:50 AM CDT	Special Marine Warning	CRP		55 min
May 27, 6:13 AM CDT	Special Weather Statement	CRP	Goliad, Live Oak	62 min
May 27, 6:39 AM CDT	Special Marine Warning	CRP		96 min
May 27, 6:41 AM CDT	Severe Thunderstorm Warning Considerable damage threat	CRP	Aransas, Bee, Goliad, Kleberg, Nueces, Refugio and 2 more	64 min
May 27, 6:55 AM CDT	Flash Flood Warning	CRP	Bee, Live Oak	2 hr
May 27, 7:13 AM CDT	Special Weather Statement	CRP	Goliad, Victoria	62 min
May 27, 7:42 AM CDT	Severe Thunderstorm Warning	CRP	Aransas, Calhoun, Goliad, Refugio, Victoria	29 min
May 27, 8:01 AM CDT	Special Marine Warning	CRP		89 min
May 27, 8:02 AM CDT	Areal Flood Warning	CRP	Aransas, Bee, Calhoun, Jim Wells, Kleberg, Live Oak and 3 more	2 hr
May 27, 8:06 AM CDT	Special Weather Statement	CRP	Victoria	39 min
May 27, 8:10 AM CDT	Special Weather Statement	CRP	Aransas, Calhoun, Victoria	50 min
May 27, 2:25 PM CDT	River Flood Warning	CRP	Aransas, Refugio	66 hr

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