Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Brownsville, TX

August 8, 2014Hidalgo County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Aug 8, 2014, 4:15 PM CDT for Hidalgo County, Texas. It was in force for 15 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: Aug 8, 2014, 4:15 PM CDT (21:15 UTC)
Expired: Aug 8, 2014, 4:30 PM CDT
In force: 15 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon

County Hidalgo County, TX

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 9.3 hours before the alert went out and 99 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: 3210 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -85 m²/s²
0-3 km storm-relative helicity: -55 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.

424 
WUUS54 KBRO 082115
SVRBRO
TXC215-082145-
/O.NEW.KBRO.SV.W.0021.140808T2115Z-140808T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
415 PM CDT FRI AUG 8 2014

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL HIDALGO COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 445 PM CDT

* AT 412 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
A   SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING DOWNBURST 
WINDS TO 60 MPH...8 MILES SOUTHEAST OF LINN...MOVING NORTHWEST AT 10 
MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  RED GATE.
  LINN SAN MANUEL.
  HIGHWAY 281 NEAR RED GATE AND LINN SAN MANUEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE WIND SPEEDS STRONG ENOUGH TO BRING
DOWN TREES AND POWER LINES AND DAMAGE OR DESTROY MOBILE HOMES AND
OUTBUILDINGS. PERSONS OUTDOORS OR IN VEHICLES SHOULD SEEK SAFETY
INSIDE A STURDY BUILDING UNTIL THE STORM PASSES. IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

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 2649 9823 2658 9816 2658 9810 2657 9807
      2647 9801 2641 9806
TIME...MOT...LOC 2112Z 138DEG 8KT 2647 9807

$$

JGG

1 follow-up statement

158 
WWUS54 KBRO 082130
SVSBRO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
430 PM CDT FRI AUG 8 2014

TXC215-082140-
/O.CAN.KBRO.SV.W.0021.000000T0000Z-140808T2145Z/
HIDALGO-
430 PM CDT FRI AUG 8 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HIDALGO COUNTY IS
CANCELLED...

THUNDERSTORMS HAVE WEAKENED TO BELOW SEVERE LIMITS...THEREFORE THE 
WARNING IS CANCELLED. TORRENTIAL RAINFALL AND GUSTY WINDS TO 40 MPH 
WILL CONTINUE AROUND LINN SAN MANUEL THROUGH 500 PM.

LAT...LON 2649 9823 2658 9816 2658 9810 2657 9807
      2647 9801 2641 9806
TIME...MOT...LOC 2130Z 138DEG 8KT 2650 9810

$$

JGG

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.