Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 4, NWS Corpus Christi, TX

January 9, 2011Aransas County, San Patricio County, Texas

NWS Corpus Christi, TX issued this tornado warning at Jan 9, 2011, 4:18 AM CST for Aransas County, San Patricio County, Texas. It was in force for 27 min. 7 reports 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
Jan 9, 2011, 4:18 AM CST (10:18 UTC)
Expired
Jan 9, 2011, 4:45 AM CST
In force
27 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon

Counties Aransas County, TX, San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 47 km from the middle of the area, began a volume at 10:19 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
Jan 9, 4:24 AM CSTHAIL 11 Nw Aransas Pass, TX
Jan 9, 4:24 AM CSTHAIL 11 Nw Aransas Pass, TX
Jan 9, 4:30 AM CSTTSTM WND DMGRockport, TXROOF DAMAGE TO ONE HOME IN ROCKPORT. A FEW TREES WERE UPROOTED AS WELL. WINDS ESTIMATED AT 75 MPH.
Jan 9, 4:30 AM CSTTSTM WND DMGRockport, TXROOF DAMAGE TO SEVERAL HOMES AND TREES UPROOTED ALONG A TWO MILE PATH FROM LIVE OAK ELEMENTARY TO THE INTERSECTION OF NOPAL AND AUSTIN.
Jan 9, 4:36 AM CSTTSTM WND GST 54Rockport, TX
Jan 9, 4:36 AM CSTTSTM WND GST 54Rockport, TX
Jan 9, 4:42 AM CSTMARINE TSTM WIND 511 Se Rockport, TXROCKPORT TCOON

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
Jan 9, 2:11 AM CSTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 10.3 hours before the alert went out and 37 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 2011-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
719 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
475 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

925 
WFUS54 KCRP 091018
TORCRP
TXC007-409-091045-
/O.NEW.KCRP.TO.W.0004.110109T1018Z-110109T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
418 AM CST SUN JAN 9 2011

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN ARANSAS COUNTY IN SOUTH TEXAS...
  EAST CENTRAL SAN PATRICIO COUNTY IN SOUTH TEXAS...

* UNTIL 445 AM CST

* AT 414 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR GREGORY...
  OR NEAR PORTLAND...MOVING EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PALM HARBOR...
  ROCKPORT...

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST SUNDAY
MORNING FOR CENTRAL TEXAS.

&&

LAT...LON 2786 9703 2786 9705 2797 9705 2797 9708
      2787 9714 2790 9732 2802 9733 2807 9720
      2805 9713 2811 9705 2810 9702 2802 9702
      2799 9705 2795 9703 2796 9699 2801 9697
      2797 9694
TIME...MOT...LOC 1018Z 261DEG 48KT 2793 9723

$$

JR
2 follow-up statements
820 
WWUS54 KCRP 091026
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
426 AM CST SUN JAN 9 2011

TXC007-409-091045-
/O.CON.KCRP.TO.W.0004.000000T0000Z-110109T1045Z/
ARANSAS-SAN PATRICIO-
426 AM CST SUN JAN 9 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CST FOR
SOUTHWESTERN ARANSAS AND EXTREME EAST CENTRAL SAN PATRICIO
COUNTIES...

AT 424 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PALM HARBOR...OR 7
MILES SOUTHWEST OF ROCKPORT...MOVING EAST AT 55 MPH.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST SUNDAY
MORNING FOR CENTRAL TEXAS.

&&

LAT...LON 2786 9703 2786 9705 2797 9705 2797 9708
      2789 9716 2795 9721 2807 9720 2805 9713
      2811 9705 2810 9702 2802 9702 2799 9705
      2795 9703 2796 9699 2801 9697 2797 9694
TIME...MOT...LOC 1026Z 261DEG 48KT 2796 9710

$$

JR
232 
WWUS54 KCRP 091033
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
433 AM CST SUN JAN 9 2011

TXC409-091043-
/O.CAN.KCRP.TO.W.0004.000000T0000Z-110109T1045Z/
SAN PATRICIO-
433 AM CST SUN JAN 9 2011

...THE TORNADO WARNING FOR EXTREME EAST CENTRAL SAN PATRICIO COUNTY
IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST SUNDAY
MORNING FOR CENTRAL TEXAS.

LAT...LON 2786 9703 2786 9705 2797 9705 2797 9708
      2800 9712 2805 9713 2811 9705 2810 9702
      2802 9702 2799 9705 2795 9703 2796 9699
      2801 9697 2797 9694
TIME...MOT...LOC 1033Z 261DEG 48KT 2800 9700

$$

TXC007-091045-
/O.CON.KCRP.TO.W.0004.000000T0000Z-110109T1045Z/
ARANSAS-
433 AM CST SUN JAN 9 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CST FOR SOUTH
CENTRAL ARANSAS COUNTY...

AT 429 AM CST...A TORNADO WAS REPORTED.  THIS TORNADO WAS LOCATED
NEAR ROCKPORT...MOVING EAST AT 55 MPH.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CST SUNDAY
MORNING FOR CENTRAL TEXAS.

&&

LAT...LON 2786 9703 2786 9705 2797 9705 2797 9708
      2800 9712 2805 9713 2811 9705 2810 9702
      2802 9702 2799 9705 2795 9703 2796 9699
      2801 9697 2797 9694
TIME...MOT...LOC 1033Z 261DEG 48KT 2800 9700

$$

JR

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 9, 2:16 AM CSTSevere Thunderstorm WarningCRPDuval, Jim Wells, Live Oak, McMullen44 min
Jan 9, 2:40 AM CSTSevere Thunderstorm WarningCRPDuval, Jim Wells35 min
Jan 9, 2:50 AM CSTTornado WarningCRPBee, Live Oak25 min
Jan 9, 2:59 AM CSTSevere Thunderstorm WarningCRPAransas, Bee, Duval, Goliad, Jim Wells, Kleberg and 4 more91 min
Jan 9, 3:22 AM CSTSpecial Marine WarningCRP3 hr
Jan 9, 3:26 AM CSTAreal Flood AdvisoryCRPAransas, Bee, Calhoun, Jim Wells, Kleberg, Live Oak and 3 more2 hr
Jan 9, 3:42 AM CSTTornado WarningCRPNueces, San Patricio33 min
Jan 9, 4:06 AM CSTTornado WarningCRPAransas, Refugio, San Patricio24 min
Jan 9, 4:31 AM CSTSevere Thunderstorm WarningCRPAransas, Kleberg, Nueces, Refugio, San Patricio29 min
Jan 9, 4:50 AM CSTSevere Thunderstorm WarningCRPCalhoun40 min
Jan 9, 4:56 AM CSTSevere Thunderstorm WarningCRPVictoria19 min
Jan 9, 6:13 AM CSTSpecial Marine WarningCRP47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.