Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 55, NWS Corpus Christi, TX

May 11, 2012Calhoun County, Texas

NWS Corpus Christi, TX issued this tornado warning at May 11, 2012, 12:00 AM CDT for Calhoun County, Texas. It was in force for 45 min. 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
May 11, 2012, 12:00 AM CDT (05:00 UTC)
Expired
May 11, 2012, 12:45 AM CDT
In force
45 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon

County Calhoun County, TX

The radar

The Corpus Christi radar (KCRP), 133 km from the middle of the area, began a volume at 05:00 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.

What was reported inside it

TimeReportWhereRemark
May 11, 12:02 AM CDTFUNNEL CLOUD2 Nnw Indianola, TXNEAR THE REFUGE AREA

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 10, 7:50 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 5.0 hours before the alert went out and 126 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 2012-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2214 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2012-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
2214 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
3.4
Supercell composite
14.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

015 
WFUS54 KCRP 110500
TORCRP
TXC057-110545-
/O.NEW.KCRP.TO.W.0055.120511T0500Z-120511T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1200 AM CDT FRI MAY 11 2012

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CALHOUN COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1245 AM CDT

* AT 1156 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MAGNOLIA
  BEACH...OR 8 MILES SOUTH OF PORT LAVACA...MOVING NORTHEAST AT 40
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAGNOLIA BEACH...
  OLIVIA...
  PORT ALTO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT FRIDAY MORNING FOR
SOUTHEASTERN TEXAS.

&&

LAT...LON 2856 9651 2853 9650 2849 9644 2841 9656
      2854 9666 2860 9656 2857 9655 2858 9652
      2857 9650 2860 9649 2861 9651 2863 9651
      2868 9641 2868 9637 2864 9631
TIME...MOT...LOC 0500Z 229DEG 34KT 2853 9656

$$

PZ

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 7:05 PM CDTTornado WarningCRPDuval, Jim Wells, Live Oak, McMullen40 min
May 10, 7:12 PM CDTSevere Thunderstorm WarningCRPLa Salle63 min
May 10, 7:12 PM CDTSevere Thunderstorm WarningCRPBee, Goliad, Refugio48 min
May 10, 7:25 PM CDTTornado WarningCRPDuval, McMullen35 min
May 10, 7:28 PM CDTTornado WarningCRPWebb47 min
May 10, 7:33 PM CDTTornado WarningCRPLa Salle42 min
May 10, 7:43 PM CDTTornado WarningCRPLive Oak47 min
May 10, 7:51 PM CDTSevere Thunderstorm WarningCRPGoliad, Victoria54 min
May 10, 7:53 PM CDTTornado WarningCRPDuval, Jim Wells, Live Oak, McMullen37 min
May 10, 7:56 PM CDTSevere Thunderstorm WarningCRPDuval, La Salle, McMullen, Webb34 min
May 10, 7:59 PM CDTFlash Flood WarningCRPDuval, La Salle, Live Oak, McMullen, Webb2 hr
May 10, 8:05 PM CDTSevere Thunderstorm WarningCRPDuval, Webb55 min
May 10, 8:13 PM CDTFlash Flood WarningCRPBee, Duval, Live Oak, McMullen2 hr
May 10, 8:16 PM CDTTornado WarningCRPBee, Live Oak, San Patricio59 min
May 10, 8:29 PM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells, McMullen46 min
May 10, 8:41 PM CDTSevere Thunderstorm WarningCRPGoliad, Victoria64 min
May 10, 8:44 PM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells, Nueces, San Patricio, Webb46 min
May 10, 9:12 PM CDTSevere Thunderstorm WarningCRPJim Wells, Nueces, San Patricio63 min
May 10, 9:24 PM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells, Kleberg, Nueces, San Patricio, Webb51 min
May 10, 9:34 PM CDTTornado WarningCRPSan Patricio41 min
May 10, 9:53 PM CDTSpecial Marine WarningCRP112 min
May 10, 10:06 PM CDTSevere Thunderstorm WarningCRPKleberg, Nueces, San Patricio54 min
May 10, 10:22 PM CDTTornado WarningCRPAransas, Nueces, San Patricio23 min
May 10, 10:28 PM CDTTornado WarningCRPAransas, Refugio, San Patricio32 min
May 10, 10:41 PM CDTTornado WarningCRPAransas, Nueces, San Patricio34 min
May 10, 10:45 PM CDTSevere Thunderstorm WarningCRPAransas, Calhoun, Nueces, Refugio, San Patricio45 min
May 10, 10:53 PM CDTTornado WarningCRPAransas, Refugio, San Patricio37 min
May 10, 10:58 PM CDTSevere Thunderstorm WarningCRPAransas, Kleberg, Nueces, San Patricio47 min
May 10, 11:13 PM CDTTornado WarningCRPGoliad, Victoria32 min
May 10, 11:14 PM CDTSevere Thunderstorm WarningCRPAransas, Calhoun, Goliad, Refugio, Victoria61 min
May 10, 11:15 PM CDTTornado WarningCRPAransas, Calhoun, Refugio30 min
May 10, 11:25 PM CDTSpecial Marine WarningCRP3 hr
May 10, 11:32 PM CDTSevere Thunderstorm WarningCRPAransas, Calhoun, Nueces, Refugio, San Patricio13 min
May 10, 11:36 PM CDTTornado WarningCRPCalhoun24 min
May 10, 11:44 PM CDTTornado WarningCRPVictoria16 min
May 11, 12:36 AM CDTSevere Thunderstorm WarningCRPCalhoun24 min
May 11, 12:41 AM CDTSevere Thunderstorm WarningCRPDuval, Webb34 min
May 11, 1:26 AM CDTSpecial Marine WarningCRP64 min
May 11, 2:27 AM CDTSpecial Marine WarningCRP2 hr
May 11, 4:30 AM CDTSpecial Marine WarningCRP60 min
May 11, 9:02 AM CDTRiver Flood WarningCRPCalhoun, Victoria5 days

Nearby

Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes in 2012

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.