Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 92, NWS Brownsville, TX

October 18, 2012Kenedy County, Willacy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Oct 18, 2012, 4:43 PM CDT for Kenedy County, Willacy County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 18, 2012, 4:43 PM CDT (21:43 UTC)
Expired
Oct 18, 2012, 5:46 PM CDT
In force
63 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon

Counties Kenedy County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 89 km from the middle of the area, began a volume at 21:46 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.

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 9.7 hours before the alert went out and 91 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 12:00Z on 2012-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2118 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 12:00Z on 2012-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
2118 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
1124 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

721 
WUUS54 KBRO 182143
SVRBRO
TXC261-489-182315-
/O.NEW.KBRO.SV.W.0092.121018T2143Z-121018T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
443 PM CDT THU OCT 18 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN KENEDY COUNTY IN DEEP SOUTH TEXAS.
  NORTHERN WILLACY COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 615 PM CDT

* AT 442 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
  DAMAGING 60 MPH WINDS...OVER SOUTHERN KENEDY COUNTY...MOVING   
  SOUTH-SOUTHEAST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RUDOLPH.
  NORIAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. MOVE TO A PLACE OF SAFETY...AN INTERIOR ROOM IN THE LOWEST
FLOOR OF YOUR HOUSE OR BUSINESS.

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 2666 9752 2652 9771 2672 9788 2684 9773
TIME...MOT...LOC 2142Z 319DEG 6KT 2671 9773

$$

TOMASELLI
3 follow-up statements
088 
WWUS54 KBRO 182209
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
509 PM CDT THU OCT 18 2012

TXC261-489-182315-
/O.CON.KBRO.SV.W.0092.000000T0000Z-121018T2315Z/
WILLACY-KENEDY-
509 PM CDT THU OCT 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHERN KENEDY AND NORTHERN WILLACY COUNTIES...

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RUDOLPH.
  YTURRIA.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. MOVE TO A PLACE OF SAFETY...AN INTERIOR ROOM IN THE LOWEST
FLOOR OF YOUR HOUSE OR BUSINESS.

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 2666 9752 2652 9771 2672 9788 2684 9773
TIME...MOT...LOC 2208Z 319DEG 6KT 2668 9770

$$

TOMASELLI
055 
WWUS54 KBRO 182225
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
525 PM CDT THU OCT 18 2012

TXC261-489-182315-
/O.CON.KBRO.SV.W.0092.000000T0000Z-121018T2315Z/
WILLACY-KENEDY-
525 PM CDT THU OCT 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHERN KENEDY AND NORTHERN WILLACY COUNTIES...

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL SOUTHERN KENEDY COUNTY.
  RURAL NORTHERN WILLACY COUNTY.

THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...
  QUARTER SIZE HAIL.
  60 MPH WIND GUSTS.
  EXCESSIVE AND DEADLY CLOUD-TO-GROUND LIGHTNING.

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 2661 9779 2675 9763 2666 9752 2652 9771
TIME...MOT...LOC 2226Z 343DEG 14KT 2655 9767

$$
032 
WWUS54 KBRO 182246
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
546 PM CDT THU OCT 18 2012

TXC261-489-182254-
/O.CAN.KBRO.SV.W.0092.000000T0000Z-121018T2315Z/
WILLACY-KENEDY-
546 PM CDT THU OCT 18 2012

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

AT 544 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED...AND THEREFORE
THE WARNING HAS BEEN CANCELLED.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER
INFORMATION.

LAT...LON 2661 9779 2675 9763 2666 9752 2652 9771
TIME...MOT...LOC 2244Z 343DEG 14KT 2648 9765

$$

TOMASELLI

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 5:25 PM CDTSevere Thunderstorm WarningBROCameron, Kenedy, Willacy95 min
Oct 18, 5:41 PM CDTTornado WarningBROCameron, Willacy64 min
Oct 18, 6:05 PM CDTSevere Thunderstorm WarningBROCameron, Hidalgo, Willacy55 min
Oct 18, 6:16 PM CDTSevere Thunderstorm WarningBROCameron, Willacy59 min
Oct 18, 6:59 PM CDTSevere Thunderstorm WarningBROCameron, Hidalgo56 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.