Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 7, NWS Corpus Christi, TX

June 22, 2011Calhoun County, Texas

NWS Corpus Christi, TX issued this tornado warning at Jun 22, 2011, 8:38 AM CDT for Calhoun County, Texas. It was in force for 37 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
Jun 22, 2011, 8:38 AM CDT (13:38 UTC)
Expired
Jun 22, 2011, 9:15 AM CDT
In force
37 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon

County Calhoun County, TX

The radar

The Corpus Christi radar (KCRP), 129 km from the middle of the area, began a volume at 13:41 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, 1.6 hours before the alert went out and 121 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 2011-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4068 joules per kilogram.LCLEL10008507005003002001001 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 2011-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
4068 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
1.0
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

637 
WFUS54 KCRP 221338
TORCRP
TXC057-221415-
/O.NEW.KCRP.TO.W.0007.110622T1338Z-110622T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
838 AM CDT WED JUN 22 2011

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

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

* UNTIL 915 AM CDT

* AT 832 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES
  SOUTHWEST OF INDIANOLA...OR 7 MILES EAST OF SEADRIFT...MOVING
  NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  INDIANOLA...
  MAGNOLIA BEACH...

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.

&&

LAT...LON 2855 9649 2856 9651 2848 9645 2833 9658
      2836 9667 2864 9661 2858 9660 2858 9656
      2856 9653 2859 9649 2860 9652 2862 9651
      2863 9658 2870 9657 2861 9636
TIME...MOT...LOC 1337Z 205DEG 15KT 2840 9660

$$

HART
2 follow-up statements
193 
WWUS54 KCRP 221403
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
903 AM CDT WED JUN 22 2011

TXC057-221415-
/O.CON.KCRP.TO.W.0007.000000T0000Z-110622T1415Z/
CALHOUN-
903 AM CDT WED JUN 22 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
NORTHEASTERN CALHOUN COUNTY...

AT 859 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR INDIANOLA...OR 7
MILES NORTHWEST OF PORT OCONNOR...MOVING NORTHEAST AT 20 MPH.

IN ADDITION...ANOTHER AREA OF WEAK ROTATION WAS NOTED WITH A 
THUNDERSTORM TO THE EAST SOUTHEAST OF SEADRIFT.

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

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.

&&

LAT...LON 2855 9649 2856 9651 2848 9645 2833 9658
      2836 9667 2864 9661 2858 9660 2858 9656
      2856 9653 2859 9649 2860 9652 2862 9651
      2863 9658 2870 9657 2861 9636
TIME...MOT...LOC 1402Z 205DEG 16KT 2850 9652

$$

HART
846 
WWUS54 KCRP 221417
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
917 AM CDT WED JUN 22 2011

TXC057-221425-
/O.EXP.KCRP.TO.W.0007.000000T0000Z-110622T1415Z/
CALHOUN-
917 AM CDT WED JUN 22 2011

...THE TORNADO WARNING FOR NORTHEASTERN CALHOUN COUNTY HAS EXPIRED...

HOWEVER...ADDITIONAL THUNDERSTORMS CONTINUE TO AFFECT THE AREA. 
PERSONS IN THE AREA SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER 
CONDITIONS.

LAT...LON 2855 9649 2856 9651 2848 9645 2833 9658
      2836 9667 2864 9661 2858 9660 2858 9656
      2856 9653 2859 9649 2860 9652 2862 9651
      2863 9658 2870 9657 2861 9636
TIME...MOT...LOC 1415Z 205DEG 16KT 2855 9649

$$

HART

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 4:14 AM CDTSmall Craft Advisory for Hazardous SeasCRP6 hr
Jun 22, 6:03 AM CDTRip Current StatementCRPAransas, Calhoun, Kleberg, Nueces16 hr
Jun 22, 8:38 AM CDTSpecial Marine WarningCRP2 hr
Jun 22, 4:13 PM CDTSpecial Marine WarningCRP95 min

Nearby

Tornado Warnings in Texas, 2011Every tornado warning in 2011Tornadoes in 2011

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.