Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 55, NWS Brownsville, TX

May 8, 2012Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 8, 2012, 2:56 PM CDT for Jim Hogg County, Zapata County, Texas. It was in force for 49 min. 2 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 8, 2012, 2:56 PM CDT (19:56 UTC)
Expired: May 8, 2012, 3:45 PM CDT
In force: 49 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), 200 km from the middle of the area, began a volume at 19:59 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 8, 3:23 PM CDT	HAIL 1	Zapata, TX	QUARTER SIZE HAIL REPORTED AT LINCOLN AND 5TH STREET.
May 8, 3:26 PM CDT	TSTM WND GST 60	Zapata, TX	WIND GUSTS ESTIMATED 60 TO 65 MPH AT LINCOLN AND 5TH STREET.

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.

Issued	Product	Office	Lasted
May 8, 10:58 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 7.9 hours before the alert went out and 212 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: 2526 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -53 m²/s²
0-3 km storm-relative helicity: -3 m²/s²
Significant tornado parameter: -1.1
Supercell composite: -5.1

Open this sounding in Storm Lab

The text

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

335 
WUUS54 KBRO 081956
SVRBRO
TXC247-505-082045-
/O.NEW.KBRO.SV.W.0055.120508T1956Z-120508T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
256 PM CDT TUE MAY 8 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN JIM HOGG COUNTY IN DEEP SOUTH TEXAS.
  SOUTHERN ZAPATA COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 345 PM CDT

* AT 255 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER TO GOLFBALL 
  SIZE HAIL AND DAMAGING 60 TO 70 MPH WINDS...8 MILES WEST OF 
  ZAPATA...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FALCON MESA.
  ZAPATA.
  BUSTAMANTE.
  MORALES-SANCHEZ.
  LOPENO.
  NEW FALCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

QUARTER SIZE HAIL IS LIKELY. MOVE INDOORS IMMEDIATELY.

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 2701 9885 2667 9901 2657 9917 2667 9921
      2672 9921 2675 9925 2679 9925 2684 9927
      2687 9933 2691 9933 2694 9939 2697 9940
      2698 9939 2701 9942 2701 9943 2702 9945
TIME...MOT...LOC 1955Z 285DEG 24KT 2692 9937

$$

BUTTS

3 follow-up statements

768 
WWUS54 KBRO 082011
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
311 PM CDT TUE MAY 8 2012

TXC247-505-082045-
/O.CON.KBRO.SV.W.0055.000000T0000Z-120508T2045Z/
JIM HOGG-ZAPATA-
311 PM CDT TUE MAY 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR SOUTHERN ZAPATA AND SOUTHWESTERN JIM HOGG COUNTIES...

AT 311 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A SEVERE THUNDERSTORM 3 MILES WEST OF ZAPATA...MOVING EAST AT 
30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  FALCON MESA.
  ZAPATA.
  SIESTA SHORES.
  BUSTAMANTE.
  ALEJANDRENAS.
  MORALES-SANCHEZ.

THE SEVERE THUNDERSTORM IS 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 STORM.  MOVE INTO A STURDY BUILDING IMMEDIATELY!

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.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN 
BROWNSVILLE.

&&


LAT...LON 2701 9885 2667 9901 2657 9917 2667 9921
      2672 9921 2675 9925 2679 9925 2684 9927
      2687 9933 2691 9933 2694 9939 2697 9940
      2698 9939 2701 9942 2701 9943 2702 9945
TIME...MOT...LOC 2011Z 285DEG 24KT 2690 9929

$$

BUTTS

478 
WWUS54 KBRO 082024
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
324 PM CDT TUE MAY 8 2012

TXC247-505-082045-
/O.CON.KBRO.SV.W.0055.000000T0000Z-120508T2045Z/
JIM HOGG-ZAPATA-
324 PM CDT TUE MAY 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR SOUTHERN ZAPATA AND SOUTHWESTERN JIM HOGG COUNTIES...

AT 320 PM CDT...THE PUBLIC REPORTED QUARTER SIZED HAIL IN DOWNTOWN 
ZAPATA.  SMALLER HAIL WAS ALSO REPORTED BY TRAINED WEATHER SPOTTERS 
NEAR ZAPATA MIDDLE SCHOOL.  

AT 322 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
SEVERE THUNDERSTORM WAS NEAR ZAPATA...AND WAS MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLACK BASS.
  BUSTAMANTE.
  ALEJANDRENAS.
  MORALES-SANCHEZ.
  NEW FALCON.

THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...  
  QUARTER TO GOLFBALL SIZE HAIL.
  DAMAGING WIND GUSTS OF 60 TO 70 MILES AN HOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM.  MOVE INTO A STURDY BUILDING IMMEDIATELY!

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.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN 
BROWNSVILLE.

&&


LAT...LON 2702 9929 2701 9885 2668 9901 2657 9917
      2667 9921 2672 9921 2675 9925 2677 9924
      2684 9927 2686 9929 2686 9931 2687 9933
      2691 9933
TIME...MOT...LOC 2022Z 285DEG 24KT 2688 9921

$$

BUTTS

363 
WWUS54 KBRO 082035
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
335 PM CDT TUE MAY 8 2012

TXC247-505-082045-
/O.CON.KBRO.SV.W.0055.000000T0000Z-120508T2045Z/
JIM HOGG-ZAPATA-
335 PM CDT TUE MAY 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR SOUTHERN ZAPATA AND SOUTHWESTERN JIM HOGG COUNTIES...

AT 326 PM CDT...THE PUBLIC REPORTED WIND SPEEDS BETWEEN 60 AND 65 
MPH NEAR DOWNTOWN ZAPATA.  TRAINED WEATHER SPOTTER AND PUBLIC 
REPORTS OF QUARTER SIZED HAIL HAVE ALSO BEEN RECEIVED BY THE 
NATIONAL WEATHER SERVICE IN BROWNSVILLE.

AT 332 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
SEVERE THUNDERSTORM WAS NOW 6 MILES SOUTHEAST OF ZAPATA...MOVING 
SOUTHEAST AT 30 MPH.  THIS STORM WILL IMPACT MOTORISTS ALONG HIGHWAY 
83 BETWEEN FALCON AND ZAPATA.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  SIESTA SHORES.
  MORALES-SANCHEZ.
  LOPENO.
  NEW FALCON.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL. 
THIS IS A DANGEROUS STORM.  MOVE INTO A STURDY BUILDING IMMEDIATELY!

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.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN 
BROWNSVILLE.

&&


LAT...LON 2702 9929 2701 9885 2668 9901 2657 9917
      2667 9921 2672 9921 2675 9925 2677 9924
      2684 9927 2686 9929 2686 9931 2687 9933
      2691 9933
TIME...MOT...LOC 2032Z 294DEG 28KT 2683 9914

$$

BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 11:51 AM CDT	Severe Thunderstorm Warning	BRO	Zapata	39 min
May 8, 12:29 PM CDT	Severe Thunderstorm Warning	BRO	Zapata	46 min
May 8, 1:09 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr, Zapata	36 min
May 8, 2:08 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr	52 min
May 8, 3:48 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr, Zapata	42 min
May 8, 3:51 PM CDT	Areal Flood Advisory	BRO	Jim Hogg, Starr, Zapata	114 min
May 8, 3:52 PM CDT	Tornado Warning	BRO	Brooks, Jim Hogg, Starr	23 min
May 8, 4:19 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy, Starr	41 min
May 8, 4:25 PM CDT	Tornado Warning	BRO	Brooks, Hidalgo, Jim Hogg, Starr	35 min
May 8, 4:33 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	27 min
May 8, 4:35 PM CDT	Areal Flood Advisory	BRO	Brooks, Jim Hogg, Starr	115 min
May 8, 5:00 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Kenedy, Willacy	45 min
May 8, 5:04 PM CDT	Areal Flood Advisory	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy, Starr	116 min
May 8, 5:36 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo, Kenedy, Willacy	39 min
May 8, 5:41 PM CDT	Special Marine Warning	BRO		2 hr
May 8, 5:46 PM CDT	Areal Flood Advisory	BRO	Brooks, Hidalgo, Kenedy, Starr, Willacy	98 min
May 8, 6:16 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo, Kenedy, Willacy	44 min
May 8, 6:20 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Kenedy, Willacy	70 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.