Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 64, NWS Brownsville, TX

May 9, 2012Brooks County, Kenedy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 9, 2012, 10:13 PM CDT for Brooks County, Kenedy County, Texas. It was in force for 52 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 9, 2012, 10:13 PM CDT (03:13 UTC)
Expired: May 9, 2012, 11:05 PM CDT
In force: 52 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

Counties Brooks County, TX, Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 71 km from the middle of the area, began a volume at 03:12 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

Time	Report	Where	Remark
May 9, 10:33 PM CDT	HAIL 1	15 S Sarita, TX	BORDER PATROL CHECKPOINT 15 MILES SOUTH OF SARITA REPORTS PREDOMINANTLY NICKEL-SIZE HAIL WITH EMBEDDED QUARTER-SIZE HAIL.

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

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.2 hours before the alert went out and 68 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 327 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1263 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -93 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.8

Open this sounding in Storm Lab

The text

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

690 
WUUS54 KBRO 100313
SVRBRO
TXC047-261-100415-
/O.NEW.KBRO.SV.W.0064.120510T0313Z-120510T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1013 PM CDT WED MAY 9 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROOKS COUNTY IN DEEP SOUTH TEXAS.
  NORTHERN KENEDY COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 1115 PM CDT

* AT 1013 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL AND
  DAMAGING 60 MPH WINDS...OVER WESTERN KENEDY COUNTY...MOVING
  NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARMSTRONG.
  BORDER PATROL.

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 2718 9744 2715 9744 2715 9743 2714 9744
      2711 9744 2711 9743 2706 9744 2682 9797
      2697 9807 2725 9762 2725 9758 2723 9753
      2727 9746 2726 9741
TIME...MOT...LOC 0313Z 239DEG 26KT 2694 9792

$$

SPEECE

3 follow-up statements

421 
WWUS54 KBRO 100325
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1025 PM CDT WED MAY 9 2012

TXC047-261-100415-
/O.CON.KBRO.SV.W.0064.000000T0000Z-120510T0415Z/
BROOKS-KENEDY-
1025 PM CDT WED MAY 9 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHERN KENEDY AND EASTERN BROOKS COUNTIES...

AT 1024 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT A SEVERE THUNDERSTORM 17 MILES SOUTH OF SARITA...MOVING 
NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARMSTRONG.
  
THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...
  GOLFBALL SIZE HAIL...WITH POSSIBLE DAMAGE.
  60 MPH WIND GUSTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM.

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 2718 9744 2715 9744 2715 9743 2714 9744
      2711 9744 2711 9743 2706 9744 2682 9797
      2697 9807 2725 9762 2725 9758 2723 9753
      2727 9746 2726 9741
TIME...MOT...LOC 0324Z 235DEG 26KT 2699 9785

$$

SPEECE

553 
WWUS54 KBRO 100342
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1042 PM CDT WED MAY 9 2012

TXC047-100352-
/O.CAN.KBRO.SV.W.0064.000000T0000Z-120510T0415Z/
BROOKS-
1042 PM CDT WED MAY 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BROOKS COUNTY IS
CANCELLED...


LAT...LON 2718 9744 2715 9744 2715 9743 2714 9744
      2711 9744 2711 9743 2706 9744 2682 9797
      2684 9798 2702 9798 2725 9762 2725 9758
      2723 9753 2727 9746 2726 9741
TIME...MOT...LOC 0342Z 239DEG 28KT 2706 9772

$$

TXC261-100415-
/O.CON.KBRO.SV.W.0064.000000T0000Z-120510T0415Z/
KENEDY-
1042 PM CDT WED MAY 9 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHERN KENEDY COUNTY...

AT 1042 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT A SEVERE THUNDERSTORM 12 MILES SOUTH OF SARITA...MOVING 
NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BORDER PATROL.

THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...
  DESTRUCTIVE BASEBALL SIZE HAIL.
  60 MPH WIND GUSTS.

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 2718 9744 2715 9744 2715 9743 2714 9744
      2711 9744 2711 9743 2706 9744 2682 9797
      2684 9798 2702 9798 2725 9762 2725 9758
      2723 9753 2727 9746 2726 9741
TIME...MOT...LOC 0342Z 239DEG 28KT 2706 9772

$$

SPEECE

009 
WWUS54 KBRO 100405
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1105 PM CDT WED MAY 9 2012

TXC261-100415-
/O.CAN.KBRO.SV.W.0064.000000T0000Z-120510T0415Z/
KENEDY-
1105 PM CDT WED MAY 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN KENEDY COUNTY IS
CANCELLED...

AT 1105 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
THUNDERSTORM THAT PROMPTED THE WARNING FOR NORTHERN KENEDY COUNTY 
HAS WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING HAS BEEN 
CANCELLED.

DOPPLER RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY 
WINDS WERE STILL POSSIBLE FROM THE THUNDERSTORM OVER NORTHERN KENEDY 
COUNTY.


LAT...LON 2718 9744 2715 9744 2715 9743 2714 9744
      2711 9744 2711 9743 2706 9744 2682 9797
      2684 9798 2702 9798 2725 9762 2725 9758
      2723 9753 2727 9746 2726 9741
TIME...MOT...LOC 0405Z 238DEG 18KT 2711 9762

$$

SPEECE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:48 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Starr	87 min
May 9, 9:19 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Willacy	86 min
May 9, 9:29 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Willacy	46 min
May 9, 10:02 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo, Willacy	58 min
May 9, 10:36 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Willacy	39 min
May 9, 10:40 PM CDT	Tornado Warning	BRO	Cameron, Willacy	35 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Every 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.