Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 80, NWS Brownsville, TX

May 15, 2012Kenedy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 15, 2012, 4:37 PM CDT for Kenedy County, Texas. It was in force for 23 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: May 15, 2012, 4:37 PM CDT (21:37 UTC)
Expired: May 15, 2012, 5:00 PM CDT
In force: 23 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

County Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 78 km from the middle of the area, began a volume at 21:37 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

Corpus Christi, TX (KCRP), launched 12:00Z, 9.6 hours before the alert went out and 75 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: 886 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

056 
WUUS54 KBRO 152137
SVRBRO
TXC261-152200-
/O.NEW.KBRO.SV.W.0080.120515T2137Z-120515T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
437 PM CDT TUE MAY 15 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 500 PM CDT

* AT 437 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
  DAMAGING 60 MPH WINDS...6 MILES SOUTHEAST OF SARITA...MOVING
  SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SARITA.

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 2709 9745 2708 9746 2708 9747 2707 9747
      2691 9759 2712 9789 2727 9778
TIME...MOT...LOC 2137Z 304DEG 17KT 2714 9775

$$

64

1 follow-up statement

125 
WWUS54 KBRO 152154
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
454 PM CDT TUE MAY 15 2012

TXC261-152200-
/O.CON.KBRO.SV.W.0080.000000T0000Z-120515T2200Z/
KENEDY-
454 PM CDT TUE MAY 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR NORTHERN KENEDY COUNTY...

AT 454 PM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM 11 MILES SOUTHEAST OF SARITA...MOVING
SOUTHEAST AT 20 MPH.

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

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 2709 9745 2708 9746 2708 9747 2707 9747
      2691 9759 2712 9789 2727 9778
TIME...MOT...LOC 2154Z 304DEG 17KT 2709 9768

$$

64

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 4:15 PM CDT	Special Marine Warning	BRO		60 min
May 15, 4:59 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy	31 min
May 15, 5:27 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy	33 min
May 15, 5:45 PM CDT	Special Marine Warning	BRO		43 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.