Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 22, NWS Brownsville, TX

May 11, 2012Cameron County, Texas

NWS Brownsville, TX issued this tornado warning at May 11, 2012, 3:14 AM CDT for Cameron County, Texas. It was in force for 31 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 11, 2012, 3:14 AM CDT (08:14 UTC)
Expired: May 11, 2012, 3:45 AM CDT
In force: 31 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 35 km from the middle of the area, began a volume at 08:16 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 11, 3:16 AM CDT	TORNADO	1 E San Benito, TX	BRIEF TOUCHDOWN AT SINGLE FAMILY HOME IN SOUTHEAST SAN BENITO. ROOF TILES BLOWN OFF...CYCLONE FENCES DOWN...BOAT AND TRAILER FLIPPED OVER...CARPORT HEAVILY DAMAGED...SEVERAL SNAPPED LIMBS. PRELIMINARY RATING... EF0...80 MPH. PATH LENGTH... 0.10 MILES. PATH WID

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 10, 7:50 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 8.2 hours before the alert went out and 38 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: 2994 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

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

396 
WFUS54 KBRO 110814
TORBRO
TXC061-110845-
/O.NEW.KBRO.TO.W.0022.120511T0814Z-120511T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
314 AM CDT FRI MAY 11 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CAMERON COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 345 AM CDT

* AT 312 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE   
TRACKING A TORNADO ON RADAR OVER SAN BENITO...MOVING NORTHEAST AT 15
MPH.

* THE TORNADO WILL BE NEAR...
  SAN BENITO.
  LANTANA.
  LOZANO.
  RIO HONDO.
  EASTERN GREATER HARLINGEN.

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.

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 2630 9757 2624 9739 2606 9764 2609 9771
      2613 9771
TIME...MOT...LOC 0812Z 218DEG 10KT 2612 9763

$$

JGG

2 follow-up statements

648 
WWUS54 KBRO 110825
SVSBRO

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

TXC061-110845-
/O.CON.KBRO.TO.W.0022.000000T0000Z-120511T0845Z/
CAMERON-
325 AM CDT FRI MAY 11 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR CENTRAL
CAMERON COUNTY...

AT 324 AM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
TRACK A TORNADO ON RADAR OVER SAN BENITO...MOVING NORTHEAST AT 15 
MPH. ROTATION WITH THIS STORM IS INCREASING. THIS STORM IS HEADED 
FOR LANTANA AND RIO HONDO.

THE TORNADO WILL BE NEAR...
  SAN BENITO.
  ARROYO COLORADO ESTATES.
  LANTANA.
  LOZANO.

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 2610 9758 2612 9764 2616 9766 2630 9757
      2624 9739
TIME...MOT...LOC 0824Z 218DEG 10KT 2615 9761

$$

JGG

178 
WWUS54 KBRO 110839
SVSBRO

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

TXC061-110845-
/O.CON.KBRO.TO.W.0022.000000T0000Z-120511T0845Z/
CAMERON-
339 AM CDT FRI MAY 11 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR CENTRAL
CAMERON COUNTY...

AT 339 AM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
TRACK A TORNADO ON RADAR 5 MILES NORTHEAST OF SAN BENITO...MOVING 
NORTHEAST AT 10 MPH.

THE TORNADO WILL BE NEAR...
  LANTANA.
  LOZANO.

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 2614 9754 2615 9759 2619 9762 2630 9757
      2624 9739
TIME...MOT...LOC 0839Z 218DEG 10KT 2618 9755

$$

JGG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 9:37 PM CDT	Severe Thunderstorm Warning	BRO	Zapata	53 min
May 10, 10:34 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Starr, Zapata	71 min
May 10, 10:56 PM CDT	Tornado Warning	BRO	Zapata	34 min
May 10, 11:18 PM CDT	Areal Flood Advisory	BRO	Jim Hogg, Zapata	57 min
May 10, 11:24 PM CDT	Tornado Warning	BRO	Zapata	36 min
May 10, 11:33 PM CDT	Tornado Warning	BRO	Jim Hogg, Starr	42 min
May 10, 11:36 PM CDT	Flash Flood Warning	BRO	Jim Hogg, Zapata	84 min
May 10, 11:41 PM CDT	Tornado Warning	BRO	Jim Hogg, Zapata	24 min
May 10, 11:44 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Jim Hogg, Starr, Zapata	76 min
May 11, 12:01 AM CDT	Tornado Warning	BRO	Jim Hogg	29 min
May 11, 12:13 AM CDT	Tornado Warning	BRO	Brooks, Jim Hogg	47 min
May 11, 12:47 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy, Starr, Willacy	88 min
May 11, 1:07 AM CDT	Areal Flood Advisory	BRO	Starr	53 min
May 11, 1:39 AM CDT	Special Marine Warning	BRO		2 hr
May 11, 1:58 AM CDT	Areal Flood Advisory	BRO	Hidalgo, Starr	62 min
May 11, 2:14 AM CDT	Special Marine Warning	BRO		2 hr
May 11, 2:49 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	41 min
May 11, 3:41 AM CDT	Special Marine Warning	BRO		2 hr
May 11, 3:41 AM CDT	Tornado Warning	BRO	Cameron, Willacy	34 min
May 11, 3:53 AM CDT	Severe Thunderstorm Warning	BRO	Hidalgo	52 min
May 11, 4:10 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	38 min
May 11, 4:20 AM CDT	Special Marine Warning	BRO		115 min
May 11, 4:29 AM CDT	Tornado Warning	BRO	Cameron	31 min
May 11, 4:47 AM CDT	Tornado Warning	BRO	Cameron	28 min
May 11, 6:11 AM CDT	Special Marine Warning	BRO		64 min
May 11, 6:30 AM CDT	Tornado Warning	BRO	Cameron	30 min
May 11, 6:45 AM CDT	Special Marine Warning	BRO		60 min
May 11, 6:58 AM CDT	Tornado Warning	BRO	Cameron	32 min
May 11, 7:12 AM CDT	Special Marine Warning	BRO		93 min
May 11, 11:48 AM CDT	Special Marine Warning	BRO		57 min
May 11, 12:37 PM CDT	Special Marine Warning	BRO		53 min
May 11, 1:27 PM CDT	Special Marine Warning	BRO		63 min
May 11, 2:01 PM CDT	Special Marine Warning	BRO		59 min
May 11, 2:26 PM CDT	Special Marine Warning	BRO		49 min
May 11, 3:25 PM CDT	Special Marine Warning	BRO		50 min

Nearby

Tornado Warnings in Texas, 2012 Every tornado warning in 2012 Tornadoes 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.