Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 19, NWS Brownsville, TX

May 10, 2012Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this tornado warning at May 10, 2012, 11:41 PM CDT for Jim Hogg County, Zapata County, Texas. It was in force for 24 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 10, 2012, 11:41 PM CDT (04:41 UTC)
Expired
May 11, 2012, 12:05 AM CDT
In force
24 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon

Counties Jim Hogg County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 152 km from the middle of the area, began a volume at 04:42 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, 12:00 AM CDTTORNADORandado, TXJIM HOGG COUNTY SHERIFF DEPARTMENT REPORTS TORNADO BRIEFLY TOUCHED DOWN AT THE INTERSECTION OF HIGHWAY 16 AND FM 649 IN THE VICINITY OF RANDADO.

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, 4.7 hours before the alert went out and 164 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°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.

072 
WFUS54 KBRO 110441
TORBRO
TXC247-505-110515-
/O.NEW.KBRO.TO.W.0019.120511T0441Z-120511T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1141 PM CDT THU MAY 10 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL JIM HOGG COUNTY IN DEEP SOUTH TEXAS.
  EASTERN ZAPATA COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 1215 AM CDT

* AT 1141 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE   
TRACKING A TORNADO OR ABOUT 6 MILES WEST OF RANDADO...MOVING EAST AT 
25 MPH.

* THE TORNADO WILL BE NEAR...
  ESCOBA.
  RANDADO.
  HIGHWAY 16

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM! MOVE INTO THE INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING...AWAY FROM WINDOWS. COVER YOUR HEAD AND
BODY WITH PILLOWS OR BLANKETS.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT. TAKE COVER NOW! MOVE TO
A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON MOBILE HOMES. IF
IN A VEHICLE AND THERE IS NO STURDY BUILDING NEARBY...PARK. CLOSE
WINDOWS...LEAVE SEATBELTS ON...GET LOWER THAN THE DASHBOARD...AND
COVER YOUR HEAD...PREFERABLY WITH BLANKETS OR PILLOWS. IF THERE IS NO
DEBRIS...LEAVE THE VEHICLE AND GO INTO A DITCH OR LOW SPOT...BUT
WATCH FOR RISING WATERS.

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.

&&

LAT...LON 2721 9869 2700 9866 2694 9905 2711 9909
TIME...MOT...LOC 0441Z 258DEG 20KT 2704 9897

$$

JGG
2 follow-up statements
285 
WWUS54 KBRO 110453
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1153 PM CDT THU MAY 10 2012

TXC247-505-110515-
/O.CON.KBRO.TO.W.0019.000000T0000Z-120511T0515Z/
JIM HOGG-ZAPATA-
1153 PM CDT THU MAY 10 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR EASTERN
ZAPATA AND CENTRAL JIM HOGG COUNTIES...

AT 1153 PM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
TRACK A TORNADO ON RADAR NEAR RANDADO...OR17 MILES EAST OF 
BUSTAMANTE...MOVING EAST AT 40 MPH. RADAR INDICATES VERY STRONG 
ROTATION WITH THIS STORM. TAKE COVER NOW NEAR RANDADO AND JUST TO 
THE SOUTH AND EAST OF RANDADO!

THE TORNADO WILL BE NEAR...
  RANDADO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.

&&


LAT...LON 2696 9898 2714 9898 2721 9869 2700 9866
TIME...MOT...LOC 0453Z 267DEG 36KT 2704 9883

$$

JGG
654 
WWUS54 KBRO 110505
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1205 AM CDT FRI MAY 11 2012

TXC247-505-110515-
/O.CAN.KBRO.TO.W.0019.000000T0000Z-120511T0515Z/
JIM HOGG-ZAPATA-
1205 AM CDT FRI MAY 11 2012

...THE TORNADO WARNING FOR EASTERN ZAPATA AND CENTRAL JIM HOGG
COUNTIES IS CANCELLED...

THE TORNADO THREAT HAS MOVED SOUTHEAST OF RANDADO....A TORNADO 
WARNING REMAINS IN EFFECT FOR THAT AREA.

LAT...LON 2696 9898 2714 9898 2721 9869 2700 9866
TIME...MOT...LOC 0505Z 267DEG 36KT 2704 9870

$$

JGG

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 9:37 PM CDTSevere Thunderstorm WarningBROZapata53 min
May 10, 10:34 PM CDTSevere Thunderstorm WarningBROJim Hogg, Starr, Zapata71 min
May 10, 10:56 PM CDTTornado WarningBROZapata34 min
May 10, 11:18 PM CDTAreal Flood AdvisoryBROJim Hogg, Zapata57 min
May 10, 11:24 PM CDTTornado WarningBROZapata36 min
May 10, 11:33 PM CDTTornado WarningBROJim Hogg, Starr42 min
May 10, 11:36 PM CDTFlash Flood WarningBROJim Hogg, Zapata84 min
May 10, 11:44 PM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Jim Hogg, Starr, Zapata76 min
May 11, 12:01 AM CDTTornado WarningBROJim Hogg29 min
May 11, 12:13 AM CDTTornado WarningBROBrooks, Jim Hogg47 min
May 11, 12:47 AM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Jim Hogg, Kenedy, Starr, Willacy88 min
May 11, 1:07 AM CDTAreal Flood AdvisoryBROStarr53 min
May 11, 1:39 AM CDTSpecial Marine WarningBRO2 hr
May 11, 1:58 AM CDTAreal Flood AdvisoryBROHidalgo, Starr62 min
May 11, 2:14 AM CDTSpecial Marine WarningBRO2 hr
May 11, 2:49 AM CDTSevere Thunderstorm WarningBROCameron41 min
May 11, 3:14 AM CDTTornado WarningBROCameron31 min
May 11, 3:41 AM CDTSpecial Marine WarningBRO2 hr
May 11, 3:41 AM CDTTornado WarningBROCameron, Willacy34 min
May 11, 3:53 AM CDTSevere Thunderstorm WarningBROHidalgo52 min
May 11, 4:10 AM CDTSevere Thunderstorm WarningBROCameron38 min
May 11, 4:20 AM CDTSpecial Marine WarningBRO115 min
May 11, 4:29 AM CDTTornado WarningBROCameron31 min
May 11, 4:47 AM CDTTornado WarningBROCameron28 min
May 11, 6:11 AM CDTSpecial Marine WarningBRO64 min
May 11, 6:30 AM CDTTornado WarningBROCameron30 min
May 11, 6:45 AM CDTSpecial Marine WarningBRO60 min
May 11, 6:58 AM CDTTornado WarningBROCameron32 min
May 11, 7:12 AM CDTSpecial Marine WarningBRO93 min
May 11, 11:48 AM CDTSpecial Marine WarningBRO57 min
May 11, 12:37 PM CDTSpecial Marine WarningBRO53 min
May 11, 1:27 PM CDTSpecial Marine WarningBRO63 min
May 11, 2:01 PM CDTSpecial Marine WarningBRO59 min
May 11, 2:26 PM CDTSpecial Marine WarningBRO49 min
May 11, 3:25 PM CDTSpecial Marine WarningBRO50 min

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.