Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 67, NWS Brownsville, TX

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

NWS Brownsville, TX issued this severe thunderstorm warning at May 10, 2012, 10:34 PM CDT for Jim Hogg County, Starr County, Zapata County, Texas. It was in force for 71 min. 4 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
May 10, 2012, 10:34 PM CDT (03:34 UTC)
Expired
May 10, 2012, 11:45 PM CDT
In force
71 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon

Counties Jim Hogg County, TX, Starr County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 175 km from the middle of the area, began a volume at 03:37 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 10, 11:20 PM CDTHAIL 1Zapata, TXQUARTER SIZE HAIL. SPECIFIC LOCATION WITHIN CITY UNKNOWN.
May 10, 11:22 PM CDTTSTM WND GST 70Zapata, TXTRAINED SPOTTER ESTIMATED WIND GUSTS OF 65 TO 70 MPH IN DOWNTOWN ZAPATA AT THE INTERSECTION OF 5TH AVE AND LINCOLN ST.
May 10, 11:24 PM CDTHAIL 0.75Zapata, TXTRAINED SPOTTER REPORTED PENNY SIZED HAIL IN DOWNTOWN ZAPATA AT THE INTERSECTION OF 5TH AVE AND LINCOLN ST.
May 10, 11:28 PM CDTHAIL 1Randado, TXSHERIFFS OFFICE REPORTED QUARTER SIZED HAIL.

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, 3.6 hours before the alert went out and 187 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.

853 
WUUS54 KBRO 110334
SVRBRO
TXC247-427-505-110445-
/O.NEW.KBRO.SV.W.0067.120511T0334Z-120511T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1034 PM CDT THU MAY 10 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JIM HOGG COUNTY IN DEEP SOUTH TEXAS.
  NORTHWESTERN STARR COUNTY IN DEEP SOUTH TEXAS.
  ZAPATA COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 1145 PM CDT

* AT 1034 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING GOLF BALL SIZE
  HAIL AND DAMAGING 60 MPH WINDS...FROM 17 MILES NORTH OF BUSTAMANTE
  TO 34 MILES SOUTHWEST OF SAN YGNACIO...MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SAN YGNACIO.
  THOMPSONVILLE.
  MEDINA.
  FALCON SHORES.
  SIESTA SHORES.
  SOUTH FORK ESTATES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 2713 9944 2728 9927 2727 9880 2736 9880
      2735 9852 2734 9852 2726 9853 2725 9851
      2694 9845 2647 9874 2649 9911 2654 9918
      2672 9921 2675 9925 2684 9927 2687 9933
      2691 9933 2694 9939 2698 9939 2702 9945
TIME...MOT...LOC 0334Z 276DEG 25KT 2723 9902 2665 9980

$$

SPEECE
3 follow-up statements
684 
WWUS54 KBRO 110352
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1052 PM CDT THU MAY 10 2012

TXC247-427-505-110445-
/O.CON.KBRO.SV.W.0067.000000T0000Z-120511T0445Z/
JIM HOGG-STARR-ZAPATA-
1052 PM CDT THU MAY 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR ZAPATA...NORTHWESTERN STARR AND JIM HOGG COUNTIES...

AT 1052 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES 
SOUTH OF MIRANDO CITY TO 31 MILES SOUTHWEST OF SAN YGNACIO...MOVING 
EAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LAS PALMAS.
  THOMPSONVILLE.
  LINDA VISTA.
  SIESTA SHORES.
  SOUTH FORK ESTATES.
  HEBBRONVILLE.

THE SEVERE THUNDERSTORMS ARE ALSO CAPABLE OF PRODUCING...
  GOLFBALL SIZE HAIL...WITH POSSIBLE DAMAGE.
  DAMAGING WIND GUSTS OF 60 TO 70 MILES AN HOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF STORMS.

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 2713 9944 2728 9927 2727 9880 2736 9880
      2735 9852 2734 9852 2726 9853 2725 9851
      2694 9845 2647 9874 2649 9911 2654 9918
      2672 9921 2675 9925 2684 9927 2687 9933
      2691 9933 2694 9939 2698 9939 2702 9945
TIME...MOT...LOC 0352Z 275DEG 22KT 2721 9893 2664 9968

$$

SPEECE
714 
WWUS54 KBRO 110416
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1116 PM CDT THU MAY 10 2012

TXC247-427-505-110445-
/O.CON.KBRO.SV.W.0067.000000T0000Z-120511T0445Z/
JIM HOGG-STARR-ZAPATA-
1116 PM CDT THU MAY 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR ZAPATA...NORTHWESTERN STARR AND JIM HOGG COUNTIES...

AT 1116 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES 
SOUTHWEST OF HEBBRONVILLE TO 25 MILES WEST OF FALCON DAM...MOVING 
EAST AT 20 TO 25 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  SIESTA SHORES.
  RANDADO.
  SOUTH FORK ESTATES.
  HEBBRONVILLE.
  LAS LOMITAS.
  LOPENO.

THE SEVERE THUNDERSTORMS ARE ALSO CAPABLE OF PRODUCING...
  GOLFBALL SIZE HAIL...WITH POSSIBLE DAMAGE.
  DAMAGING WIND GUSTS OF 60 TO 70 MILES AN HOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS LINE OF STORMS.

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 2713 9944 2728 9927 2727 9880 2736 9880
      2735 9852 2734 9852 2726 9853 2725 9851
      2694 9845 2647 9874 2649 9911 2654 9918
      2672 9921 2675 9925 2684 9927 2687 9933
      2691 9933 2694 9939 2698 9939 2702 9945
TIME...MOT...LOC 0416Z 275DEG 22KT 2717 9884 2659 9951

$$

SPEECE
115 
WWUS54 KBRO 110429
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1129 PM CDT THU MAY 10 2012

TXC247-427-505-110445-
/O.CON.KBRO.SV.W.0067.000000T0000Z-120511T0445Z/
JIM HOGG-STARR-ZAPATA-
1129 PM CDT THU MAY 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR ZAPATA...NORTHWESTERN STARR AND JIM HOGG COUNTIES...

AT 1124 PM CDT...A WEATHER SPOTTER REPORTED PENNY SIZED HAIL IN 
DOWNTOWN ZAPATA AT THE INTERSECTION OF 5TH AVE AND LINCOLN ST.

AT 1126 PM CDT...THE JIM HOGG SHERIFFS OFFICE REPORTED QUARTER SIZE 
HAIL OCCURRING IN RANDADO. 

AT 1126 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 17 MILES 
SOUTHWEST OF HEBBRONVILLE TO 17 MILES WEST OF FALCON DAM...MOVING 
EAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  ESCOBA.
  RANDADO.
  MORALES-SANCHEZ.
  SOUTH FORK ESTATES.
  LOPENO.

THE SEVERE THUNDERSTORMS ARE ALSO CAPABLE OF PRODUCING...
  GOLFBALL SIZE HAIL...WITH POSSIBLE DAMAGE.
  DAMAGING WIND GUSTS OF 60 TO 70 MILES AN HOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL.

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 2713 9944 2728 9927 2727 9880 2736 9880
      2735 9852 2734 9852 2726 9853 2725 9851
      2694 9845 2647 9874 2649 9911 2654 9918
      2672 9921 2675 9925 2684 9927 2687 9933
      2691 9933 2694 9939 2698 9939 2702 9945
TIME...MOT...LOC 0426Z 275DEG 22KT 2712 9885 2659 9939

$$

SPEECE

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, 10:56 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, 11:41 PM CDTTornado WarningBROJim Hogg, Zapata24 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

Severe Thunderstorm Warnings in Texas, 2012Every severe thunderstorm warning 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.