Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 4, NWS Brownsville, TX

March 29, 2012Hidalgo County, Texas

NWS Brownsville, TX issued this tornado warning at Mar 29, 2012, 9:09 PM CDT for Hidalgo County, Texas. It was in force for 36 min. 7 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
Mar 29, 2012, 9:09 PM CDT (02:09 UTC)
Expired
Mar 29, 2012, 9:45 PM CDT
In force
36 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 86 km from the middle of the area, began a volume at 02:10 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
Mar 29, 9:20 PM CDTHAIL 12 N Mcallen, TXWINDOWS BROKEN WITH QUARTER SIZE HAIL.
Mar 29, 9:20 PM CDTHAIL 1.75Mission, TXPUBLIC REPORTED GOLF BALL SIZE HAIL AT FAIRWAY AND BRYAN. WINDS BLOWING PARTS OF ROOFS OFF.
Mar 29, 9:24 PM CDTHAIL 1.75Mcallen, TXSEVERAL WINDOWS IN APARTMENT BROKEN HAIL PILING UP TO 6 INCHES.
Mar 29, 9:29 PM CDTHAIL 1Mcallen, TXQUARTER SIZE HAIL NEAR DOCTORS HOSPITAL. STREET FLOODING OBSERVERD.
Mar 29, 9:31 PM CDTHAIL 0.88Mission, TXPUBLIC REPORT OF NICKEL SIZE HAIL IN SHARYLAND.
Mar 29, 9:47 PM CDTHAIL 1Mcallen, TXSMALL TOWN OF EL MANANA REPORTED QUARTER SIZE HAIL
Mar 29, 9:49 PM CDTHAIL 14 N Mcallen, TX6 INCH DEEP HAIL UP TO QUARTER SIZE AT NOLANA AND WARE RD. BROKEN WINDOWS

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

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 2.2 hours before the alert went out and 89 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, Brownsville Intl, TX at 00:00Z on 2012-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1987 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, Brownsville Intl, TX at 00:00Z on 2012-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.193958Sfc1 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
1987 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
741 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

844 
WFUS54 KBRO 300209
TORBRO
TXC215-300245-
/O.NEW.KBRO.TO.W.0004.120330T0209Z-120330T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
909 PM CDT THU MAR 29 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HIDALGO COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 945 PM CDT

* AT 909 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A TORNADO OVER MCALLEN...MOVING SOUTH AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  MCALLEN MILLER AIRPORT BY 910 PM CDT.
  MADERO BY 915 PM CDT.
  GRANJERO BY 925 PM CDT.
  HIDALGO BY 930 PM CDT.

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 2605 9815 2606 9817 2605 9820 2607 9822
      2607 9825 2610 9829 2612 9829 2610 9830
      2610 9831 2615 9835 2615 9837 2632 9834
      2630 9814
TIME...MOT...LOC 0209Z 006DEG 14KT 2619 9825

$$

61
1 follow-up statement
317 
WWUS54 KBRO 300236
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
936 PM CDT THU MAR 29 2012

TXC215-300245-
/O.CON.KBRO.TO.W.0004.000000T0000Z-120330T0245Z/
HIDALGO-
936 PM CDT THU MAR 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN
HIDALGO COUNTY...

AT 935 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD AT SHERRY ROAD 
AND THE EXPRESSWAY.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE TORNADO WAS NOW
OVER PHARR...MOVING SOUTHEAST AT 10 MPH.

AT 935 PM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO OVER PHARR...MOVING SOUTHEAST AT 10 MPH.

THE TORNADO WILL BE NEAR...
  PHARR BY 935 PM CDT.
  SAN JUAN BY 945 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM! ACT QUICKLY. GO TO A SMALL INTERIOR ROOM
ON THE LOWEST FLOOR OF A STURDY BUILDING...AWAY FROM WINDOWS. COVER
YOUR HEAD 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 2605 9815 2606 9817 2605 9820 2607 9822
      2607 9825 2610 9829 2612 9829 2610 9830
      2610 9831 2615 9835 2615 9837 2632 9834
      2630 9814
TIME...MOT...LOC 0235Z 308DEG 7KT 2617 9821

$$

61

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 7:25 PM CDTSevere Thunderstorm WarningBROHidalgo, Jim Hogg, Starr65 min
Mar 29, 7:41 PM CDTAreal Flood AdvisoryBROHidalgo, Starr64 min
Mar 29, 8:29 PM CDTAreal Flood AdvisoryBROBrooks, Jim Hogg2 hr
Mar 29, 8:37 PM CDTSevere Thunderstorm WarningBROHidalgo53 min
Mar 29, 8:40 PM CDTAreal Flood AdvisoryBROHidalgo95 min
Mar 29, 9:12 PM CDTFlash Flood WarningBROHidalgo, Zapata17 days
Mar 29, 9:20 PM CDTSevere Thunderstorm WarningBROStarr33 min
Mar 29, 9:31 PM CDTSevere Thunderstorm WarningBROHidalgo29 min
Mar 29, 9:46 PM CDTTornado WarningBROHidalgo29 min
Mar 29, 10:18 PM CDTSevere Thunderstorm WarningBROHidalgo42 min
Mar 29, 10:47 PM CDTFlash Flood WarningBROHidalgo3 hr
Mar 29, 11:19 PM CDTAreal Flood AdvisoryBROCameron, Hidalgo14 min
Mar 29, 11:31 PM CDTFlash Flood WarningBROCameron, Hidalgo2 hr
Mar 29, 11:54 PM CDTSpecial Marine WarningBRO76 min
Mar 30, 12:31 AM CDTAreal Flood AdvisoryBROCameron76 min
Mar 30, 2:08 AM CDTAreal Flood WarningBROCameron, Hidalgo2 hr
Mar 30, 2:53 AM CDTSpecial Marine WarningBRO70 min
Mar 30, 3:32 AM CDTSmall Craft Advisory for Hazardous SeasBRO2 hr

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.