Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 1, NWS Corpus Christi, TX

May 1, 2021Nueces County, Texas

NWS Corpus Christi, TX issued this tornado warning at May 1, 2021, 12:02 AM CDT for Nueces County, Texas. It was in force for 18 min. 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 1, 2021, 12:02 AM CDT (05:02 UTC)
Expired
May 1, 2021, 12:20 AM CDT
In force
18 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Nueces County, TX

The radar

The Corpus Christi radar (KCRP), 9 km from the middle of the area, began a volume at 05:02 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 00:00Z, 5.0 hours before the alert went out and 15 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.

504 
WFUS54 KCRP 010502
TORCRP
TXC355-010530-
/O.NEW.KCRP.TO.W.0001.210501T0502Z-210501T0530Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Corpus Christi TX
1202 AM CDT Sat May 1 2021

The National Weather Service in Corpus Christi has issued a

* Tornado Warning for...
  Northeastern Nueces County in south central Texas...

* Until 1230 AM CDT.
    
* At 1201 AM CDT, a severe thunderstorm capable of producing a
  tornado was located over Downtown Corpus Christi, or near Corpus
  Christi, moving northwest at 10 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Corpus Christi and Downtown Corpus Christi. 

This includes Interstate 37 between mile markers 1 and 2.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2784 9749 2787 9743 2787 9742 2778 9739
      2777 9741
TIME...MOT...LOC 0501Z 146DEG 10KT 2780 9742 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

EMF/87
1 follow-up statement
649 
WWUS54 KCRP 010520
SVSCRP

Severe Weather Statement
National Weather Service Corpus Christi TX
1220 AM CDT Sat May 1 2021

TXC355-010529-
/O.CAN.KCRP.TO.W.0001.000000T0000Z-210501T0530Z/
Nueces TX-
1220 AM CDT Sat May 1 2021

...THE TORNADO WARNING FOR NORTHEASTERN NUECES COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 2784 9749 2787 9743 2787 9742 2778 9739
      2777 9741
TIME...MOT...LOC 0518Z 146DEG 10KT 2784 9745 

$$

JCP

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, 12:21 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, 2:39 AM CDTFlash Flood WarningCRPCalhoun, Refugio, Victoria3 hr
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

Tornado Warnings in Texas, 2021Every tornado warning in 2021Tornadoes 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.