Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 27, NWS Corpus Christi, TX

July 6, 2021Aransas County, San Patricio County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 6, 2021, 10:22 AM CDT for Aransas County, San Patricio County, Texas. It was in force for 3 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
Jul 6, 2021, 10:22 AM CDT (15:22 UTC)
Expired
Jul 6, 2021, 1:09 PM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon
Flood severity
None

Counties Aransas County, TX, San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 42 km from the middle of the area, began a volume at 15:25 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

TimeReportWhereRemark
Jul 6, 10:27 AM CDTFLASH FLOODRockport, TXSOCIAL MEDIA REPORT OF STREET FLOODING THROUGHOUT ROCKPORT.

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

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 3.4 hours before the alert went out and 32 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-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2021-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1612 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2021-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1612 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

503 
WGUS54 KCRP 061522
FFWCRP
TXC007-409-061645-
/O.NEW.KCRP.FF.W.0027.210706T1522Z-210706T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
1022 AM CDT Tue Jul 6 2021

The National Weather Service in Corpus Christi has issued a

* Flash Flood Warning for...
  Southwestern Aransas County in south central Texas...
  East Central San Patricio County in south central Texas...

* Until 1145 AM CDT.

* At 1022 AM CDT, Public reported minor street flooding in the 
  warned area. Between 2 and 4 inches of rain have fallen. The 
  expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional 
  rainfall amounts of 0.5 to 1.5 inches are possible in the warned 
  area. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Public reported.

  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...
  Rockport, Ingleside, Aransas Pass, Palm Harbor, Key Allegro, 
  Copano Village and Fulton.

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 2787 9714 2788 9714 2788 9715 2793 9722
      2814 9707 2811 9697 2787 9713

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...0.5-1 INCH IN 1 HOUR

$$

EMF
3 follow-up statements
856 
WGUS74 KCRP 061601
FFSCRP

Flash Flood Statement
National Weather Service Corpus Christi TX
1101 AM CDT Tue Jul 6 2021

TXC007-409-061645-
/O.CON.KCRP.FF.W.0027.000000T0000Z-210706T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aransas TX-San Patricio TX-
1101 AM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT THIS 
MORNING FOR SOUTHWESTERN ARANSAS AND EAST CENTRAL SAN PATRICIO 
COUNTIES...

At 1101 AM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 2 and 4 inches of rain 
have fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. 
Additional rainfall amounts up to 1 inch are possible in the warned 
area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

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...
  Rockport, Ingleside, Aransas Pass, Palm Harbor, Key Allegro, 
  Copano Village and Fulton.

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 2787 9714 2788 9714 2788 9715 2793 9722
      2814 9707 2811 9697 2787 9713

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1 INCH IN 1 HOUR

$$

EMF
901 
WGUS54 KCRP 061619
FFWCRP
TXC007-409-061815-
/O.EXT.KCRP.FF.W.0027.000000T0000Z-210706T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
1119 AM CDT Tue Jul 6 2021

The National Weather Service in Corpus Christi has extended the

* Flash Flood Warning for...
  Southwestern Aransas County in south central Texas...
  East Central San Patricio County in south central Texas...

* Until 115 PM CDT.

* At 1119 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 6 inches of rain 
  have fallen. Additional rainfall amounts up to 1 inch are possible 
  in the warned area. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  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...
  Rockport, Ingleside, Aransas Pass, Palm Harbor, Key Allegro, 
  Copano Village and Fulton.

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 2787 9714 2788 9714 2788 9715 2793 9722
      2814 9707 2811 9697 2787 9713

FLASH FLOOD...RADAR INDICATED

$$

EMF
521 
WGUS74 KCRP 061809
FFSCRP

Flash Flood Statement
National Weather Service Corpus Christi TX
109 PM CDT Tue Jul 6 2021

TXC007-409-061819-
/O.CAN.KCRP.FF.W.0027.000000T0000Z-210706T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aransas TX-San Patricio TX-
109 PM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN ARANSAS AND 
EAST CENTRAL SAN PATRICIO COUNTIES...

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

A Flash Flood Watch remains in effect until 700 PM CDT Thursday for 
a portion of south Texas.

LAT...LON 2787 9714 2788 9714 2788 9715 2793 9722
      2814 9707 2811 9697 2787 9713

$$

EMF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:12 PM CDTSevere Thunderstorm WarningCRPLa Salle33 min
Jul 5, 7:52 PM CDTSpecial Weather StatementCRPLa Salle38 min
Jul 5, 8:38 PM CDTSpecial Weather StatementCRPLa Salle52 min
Jul 5, 9:31 PM CDTSpecial Weather StatementCRPLa Salle59 min
Jul 5, 10:11 PM CDTSevere Thunderstorm WarningCRPWebb49 min
Jul 5, 10:50 PM CDTAreal Flood AdvisoryCRPWebb3 hr
Jul 5, 11:06 PM CDTSpecial Weather StatementCRPWebb39 min
Jul 6, 12:00 AM CDTSpecial Weather StatementCRPWebb60 min
Jul 6, 2:41 AM CDTFlash Flood WatchCRPAransas, Bee, Calhoun, Goliad, Jim Wells, Kleberg and 5 more4 days
Jul 6, 2:55 AM CDTSpecial Marine WarningCRP35 min
Jul 6, 4:05 AM CDTAreal Flood AdvisoryCRPAransas, Refugio3 hr
Jul 6, 6:29 AM CDTAreal Flood AdvisoryCRPBee, Goliad, Live Oak3 hr
Jul 6, 7:09 AM CDTRiver Flood WarningCRPBee5 days
Jul 6, 8:18 AM CDTSpecial Marine WarningCRP42 min
Jul 6, 8:48 AM CDTAreal Flood AdvisoryCRPAransas, Kleberg, Nueces117 min
Jul 6, 9:24 AM CDTSpecial Marine WarningCRP40 min
Jul 6, 9:58 AM CDTFlash Flood WarningCRPAransas3 hr
Jul 6, 11:40 AM CDTAreal Flood AdvisoryCRPAransas, Calhoun, Kleberg, Nueces119 min
Jul 6, 5:24 PM CDTSpecial Marine WarningCRP35 min

Nearby

Flash Flood Warnings in Texas, 2021Every flash flood warning in 2021

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.