Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 2, NWS Corpus Christi, TX

February 4, 2012Live Oak County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Feb 4, 2012, 7:02 PM CST for Live Oak County, Texas. It was in force for 43 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
Feb 4, 2012, 7:02 PM CST (01:02 UTC)
Expired
Feb 4, 2012, 7:45 PM CST
In force
43 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon

County Live Oak County, TX

The radar

The Corpus Christi radar (KCRP), 70 km from the middle of the area, began a volume at 01:03 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 00:00Z, 1.0 hours before the alert went out and 86 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, Corpus Christi, TX at 00:00Z on 2012-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Corpus Christi, TX at 00:00Z on 2012-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

534 
WUUS54 KCRP 050102
SVRCRP
TXC297-050145-
/O.NEW.KCRP.SV.W.0002.120205T0102Z-120205T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
702 PM CST SAT FEB 4 2012

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL LIVE OAK COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 745 PM CST

* AT 657 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED OVER EAST CENTRAL LIVE OAK COUNTY...OR 9 MILES
  SOUTHEAST OF GEORGE WEST...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RURAL EASTERN LIVE OAK COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE 
IMMEDIATELY FOR DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 2835 9791 2823 9785 2819 9802 2830 9803
TIME...MOT...LOC 0101Z 256DEG 15KT 2825 9798

$$

87
1 follow-up statement
930 
WWUS54 KCRP 050120
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
720 PM CST SAT FEB 4 2012

TXC297-050145-
/O.CON.KCRP.SV.W.0002.000000T0000Z-120205T0145Z/
LIVE OAK-
720 PM CST SAT FEB 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR EAST CENTRAL LIVE OAK COUNTY...

AT 714 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED OVER EAST CENTRAL LIVE OAK COUNTY...OR
13 MILES EAST OF GEORGE WEST...MOVING EAST AT 15 MPH.

LAT...LON 2821 9795 2832 9796 2835 9791 2823 9785
TIME...MOT...LOC 0120Z 256DEG 15KT 2827 9789

$$

87

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 4, 6:50 PM CSTSevere Thunderstorm WarningCRPDuval40 min
Feb 4, 7:09 PM CSTSevere Thunderstorm WarningCRPBee36 min
Feb 4, 9:07 PM CSTAreal Flood AdvisoryCRPJim Wells, Nueces113 min
Feb 4, 10:23 PM CSTAreal Flood AdvisoryCRPAransas, Calhoun, Nueces, Refugio, San Patricio112 min
Feb 4, 11:35 PM CSTSpecial Marine WarningCRP85 min
Feb 4, 11:46 PM CSTAreal Flood AdvisoryCRPJim Wells, Nueces119 min
Feb 5, 12:18 AM CSTAreal Flood AdvisoryCRPNueces87 min
Feb 5, 12:58 AM CSTSpecial Marine WarningCRP92 min
Feb 5, 9:26 AM CSTWind AdvisoryCRPAransas, Calhoun, Jim Wells, Kleberg, Nueces, Refugio and 1 more93 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.