Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Corpus Christi, TX

May 1, 2021Calhoun County, Refugio County, Victoria County, Texas

NWS Corpus Christi, TX issued this flash flood warning at May 1, 2021, 2:39 AM CDT for Calhoun County, Refugio County, Victoria County, Texas. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 1, 2021, 2:39 AM CDT (07:39 UTC)
Expired
May 1, 2021, 5:45 AM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties
Flood severity
None

Counties Calhoun County, TX, Refugio County, TX, Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 100 km from the middle of the area, began a volume at 07:39 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
May 1, 5:36 AM CDTFLASH FLOOD4 Wnw Telferner, TX59 N NEAR VICTORIA BLOCKED OFF FROM 185.
May 1, 5:36 AM CDTFLASH FLOOD4 Wnw Telferner, TX
May 1, 5:45 AM CDTFLASH FLOOD1 Nnw Bloomington, TXSTATE HIGHWAY 185 IS FLOODED WITH CARS STALLED FROM 3RD TO 8TH STREET.

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 00:00Z, 7.7 hours before the alert went out and 97 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 00:00Z on 2021-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 00:00Z on 2021-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 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
42 J/kg
Mixed-layer CIN
-278 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

412 
WGUS54 KCRP 010739
FFWCRP
TXC057-391-469-011045-
/O.NEW.KCRP.FF.W.0005.210501T0739Z-210501T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Corpus Christi TX
239 AM CDT Sat May 1 2021

The National Weather Service in Corpus Christi has issued a

* Flash Flood Warning for...
  Northeastern Refugio County in south central Texas...
  Southeastern Victoria County in south central Texas...
  Northwestern Calhoun County in south Texas...

* Until 545 AM CDT.

* At 239 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Victoria, Port Lavaca, McFaddin, Guadalupe, Bloomington, Placedo, 
  Dacosta, Green Lake, Wood Hi, Tivoli, Long Mott, Brentwood 
  Subdivision, Telferner, Victoria College, Victoria Regional 
  Airport, Victoria Colony Creek Country Club, Downtown Victoria and 
  Victoria Riverside Park.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

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.

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, urban areas, highways, streets and underpasses 
as well as other drainage areas and low lying spots.

&&

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

$$

EMF/87
1 follow-up statement
060 
WGUS74 KCRP 010828
FFSCRP

Flash Flood Statement
National Weather Service Corpus Christi TX
328 AM CDT Sat May 1 2021

TXC057-391-469-011045-
/O.CON.KCRP.FF.W.0005.000000T0000Z-210501T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Calhoun TX-Refugio TX-Victoria TX-
328 AM CDT Sat May 1 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM CDT EARLY THIS 
MORNING FOR NORTHEASTERN REFUGIO, SOUTHEASTERN VICTORIA AND 
NORTHWESTERN CALHOUN COUNTIES...

At 328 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 4 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Victoria, Port Lavaca, McFaddin, Guadalupe, Bloomington, Placedo, 
  Dacosta, Green Lake, Wood Hi, Tivoli, Long Mott, Brentwood 
  Subdivision, Telferner, Victoria College, Victoria Regional 
  Airport, Victoria Colony Creek Country Club, Downtown Victoria and 
  Victoria Riverside Park.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area.

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.

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, urban areas, highways, streets and underpasses 
as well as other drainage areas and low lying spots.

&&

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

$$

TC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 7:01 PM CDTSpecial Weather StatementCRPWebb44 min
Apr 30, 7:46 PM CDTSpecial Weather StatementCRPLa Salle44 min
Apr 30, 8:35 PM CDTRiver Flood WarningCRPCalhoun, Refugio, Victoria21 days
Apr 30, 8:38 PM CDTRiver Flood WarningCRPVictoria21 days
Apr 30, 11:47 PM CDTFlash Flood WarningCRPNueces3 hr
May 1, 12:02 AM CDTTornado WarningCRPNueces18 min
May 1, 12:21 AM CDTAreal Flood WarningCRPNueces114 min
May 1, 12:29 AM CDTFlash Flood WarningCRPAransas, San Patricio3 hr
May 1, 2:10 AM CDTFlash Flood WarningCRPNueces3 hr
May 1, 2:20 AM CDTFlash Flood WarningCRPAransas, Refugio, San Patricio70 min
May 1, 2:57 AM CDTFlash Flood WarningCRPKleberg, Nueces3 hr
May 1, 3:32 AM CDTFlash Flood WarningCRPAransas, Bee, Calhoun, Jim Wells, Live Oak, Nueces and 2 more3 hr
May 1, 4:22 AM CDTRiver Flood WarningCRPNueces11 hr
May 1, 5:45 AM CDTAreal Flood WarningCRPCalhoun, Goliad, Refugio, Victoria2 hr
May 1, 5:56 AM CDTAreal Flood WarningCRPKleberg, Nueces2 hr
May 1, 6:07 AM CDTSpecial Marine WarningCRP38 min
May 1, 6:26 AM CDTAreal Flood WarningCRPAransas, Bee, Calhoun, Jim Wells, Nueces, Refugio and 1 more94 min
May 1, 9:21 AM CDTSpecial Weather StatementCRPDimmit24 min
May 1, 9:49 AM CDTSpecial Weather StatementCRPDimmit26 min
May 1, 10:48 AM CDTSmall Craft AdvisoryCRP8 hr
May 1, 11:29 AM CDTAreal Flood AdvisoryCRPAransas, Kleberg, Nueces, Refugio, San Patricio2 hr
May 1, 3:28 PM CDTAreal Flood AdvisoryCRPAransas, Nueces2 hr
May 1, 3:40 PM CDTAreal Flood AdvisoryCRPBee, Refugio, San Patricio2 hr
May 1, 5:47 PM CDTAreal Flood AdvisoryCRPVictoria118 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.