Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 26, NWS Corpus Christi, TX

July 6, 2021Aransas County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 6, 2021, 9:58 AM CDT for Aransas County, Texas. It was in force for 3 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 6, 2021, 9:58 AM CDT (14:58 UTC)
Expired
Jul 6, 2021, 1:11 PM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon
Flood severity
None

County Aransas County, TX

The radar

The Corpus Christi radar (KCRP), 69 km from the middle of the area, began a volume at 15:00 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.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 3.0 hours before the alert went out and 63 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.

823 
WGUS54 KCRP 061458
FFWCRP
TXC007-061700-
/O.NEW.KCRP.FF.W.0026.210706T1458Z-210706T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Corpus Christi has issued a

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

* Until noon CDT.

* At 958 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 6 inches of rain 
  have fallen. The expected rainfall rate is 2 to 4 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.

  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...
  Lamar and Holiday Beach.

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.

&&

LAT...LON 2828 9705 2830 9689 2821 9693 2812 9697
      2814 9704 2819 9704 2819 9703 2820 9702
      2820 9704

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-4 INCHES IN 1 HOUR

$$

EMF
3 follow-up statements
536 
WGUS74 KCRP 061556
FFSCRP

Flash Flood Statement
National Weather Service Corpus Christi TX
1056 AM CDT Tue Jul 6 2021

TXC007-061700-
/O.CON.KCRP.FF.W.0026.000000T0000Z-210706T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aransas TX-
1056 AM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON CDT TODAY FOR 
NORTH CENTRAL ARANSAS COUNTY...

At 1056 AM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 3 and 7 inches of rain 
have fallen. The expected rainfall rate is 1 inch in 1 hour. 
Additional rainfall amounts of 1 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.

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...
  Lamar and Holiday Beach.

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.

&&

LAT...LON 2828 9705 2830 9689 2821 9693 2812 9697
      2814 9704 2819 9704 2819 9703 2820 9702
      2820 9704

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

$$

EMF
605 
WGUS54 KCRP 061620
FFWCRP
TXC007-061830-
/O.EXT.KCRP.FF.W.0026.000000T0000Z-210706T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
1120 AM CDT Tue Jul 6 2021

The National Weather Service in Corpus Christi has extended the

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

* Until 130 PM CDT.

* At 1120 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 4 and 8 inches of rain 
  have fallen. Additional rainfall amounts up to 1 inch are possible 
  in the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  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...
  Lamar and Holiday Beach.

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.

&&

LAT...LON 2828 9705 2830 9689 2821 9693 2812 9697
      2814 9704 2819 9704 2819 9703 2820 9702
      2820 9704

FLASH FLOOD...RADAR INDICATED

$$

EMF
812 
WGUS74 KCRP 061811
FFSCRP

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

TXC007-061821-
/O.CAN.KCRP.FF.W.0026.000000T0000Z-210706T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aransas TX-
111 PM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTH CENTRAL ARANSAS 
COUNTY...

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 2828 9705 2830 9689 2821 9693 2812 9697
      2814 9704 2819 9704 2819 9703 2820 9702
      2820 9704

$$

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, 10:22 AM CDTFlash Flood WarningCRPAransas, San Patricio3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.