Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 95, NWS Austin/San Antonio, TX

June 26, 2012Fayette County, Gonzales County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 26, 2012, 6:52 PM CDT for Fayette County, Gonzales County, Lavaca County, Texas. It was in force for 53 min. 1 report 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
Jun 26, 2012, 6:52 PM CDT (23:52 UTC)
Expired
Jun 26, 2012, 7:45 PM CDT
In force
53 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

Counties Fayette County, TX, Gonzales County, TX, Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 81 km from the middle of the area, began a volume at 23:52 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
Jun 26, 6:55 PM CDTTSTM WND DMG7 Nw Flatonia, TXSEVERAL TREES BLOWN DOWN NORTH OF THE CITY.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 26, 3:22 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 219 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 12:00Z on 2012-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1292 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, Corpus Christi, TX at 12:00Z on 2012-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1292 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
1814 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

012 
WUUS54 KEWX 262352
SVREWX
TXC149-177-285-270045-
/O.NEW.KEWX.SV.W.0095.120626T2352Z-120627T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
652 PM CDT TUE JUN 26 2012

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN FAYETTE COUNTY...
  NORTHEASTERN GONZALES COUNTY...
  NORTHWESTERN LAVACA COUNTY...

* UNTIL 745 PM CDT.

* AT 647 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM MULDOON TO FLATONIA...AND MOVING WEST AT 20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE MOULTON AND WAELDER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 2988 9705 2964 9696 2941 9737 2968 9750
TIME...MOT...LOC 2351Z 072DEG 18KT 2979 9713 2970 9715
          2963 9710

$$
4 follow-up statements
435 
WWUS54 KEWX 270004
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
704 PM CDT TUE JUN 26 2012

TXC149-177-285-270045-
/O.CON.KEWX.SV.W.0095.000000T0000Z-120627T0045Z/
FAYETTE TX-GONZALES TX-LAVACA TX-
704 PM CDT TUE JUN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN LAVACA...NORTHEASTERN GONZALES AND SOUTHWESTERN
FAYETTE COUNTIES...

AT 701 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG 
A LINE EXTENDING FROM COLONY TO NEWTONVILLE TO MOULTON...MOVING WEST 
AT 20 MPH.

SOME LOCATIONS IN THE WARNING AREA INCLUDE NICKLE...WAELDER...
DILWORTH...LITTLE NEW YORK AND THOMPSONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 2986 9710 2964 9703 2941 9737 2968 9750
TIME...MOT...LOC 0004Z 072DEG 18KT 2977 9720 2968 9722
          2961 9717

$$
481 
WWUS54 KEWX 270006 CCA
SVSEWX

SEVERE WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
704 PM CDT TUE JUN 26 2012

TXC149-177-285-270045-
/O.COR.KEWX.SV.W.0095.000000T0000Z-120627T0045Z/
FAYETTE TX-GONZALES TX-LAVACA TX-
704 PM CDT TUE JUN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN LAVACA...NORTHEASTERN GONZALES AND SOUTHWESTERN
FAYETTE COUNTIES...

AT 701 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG 
A LINE EXTENDING FROM COLONY TO NEWTONVILLE TO MOULTON...MOVING WEST 
AT 20 MPH. ANOTHER SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER 
SIZE HAIL WAS LOCATED 5 MILES EAST OF HARWOOD. 

SOME LOCATIONS IN THE WARNING AREA INCLUDE NICKLE...WAELDER...
DILWORTH...LITTLE NEW YORK AND THOMPSONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 2986 9710 2964 9703 2941 9737 2968 9750
TIME...MOT...LOC 0004Z 072DEG 18KT 2977 9720 2968 9722
          2961 9717

$$
420 
WWUS54 KEWX 270016
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
716 PM CDT TUE JUN 26 2012

TXC285-270025-
/O.CAN.KEWX.SV.W.0095.000000T0000Z-120627T0045Z/
LAVACA TX-
716 PM CDT TUE JUN 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LAVACA COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

LAT...LON 2982 9718 2966 9713 2944 9737 2968 9750
TIME...MOT...LOC 0015Z 065DEG 9KT 2973 9721 2966 9745

$$

TXC149-177-270045-
/O.CON.KEWX.SV.W.0095.000000T0000Z-120627T0045Z/
FAYETTE TX-GONZALES TX-
716 PM CDT TUE JUN 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHEASTERN GONZALES AND SOUTHWESTERN FAYETTE COUNTIES...

AT 710 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG
A LINE EXTENDING FROM COLONY TO THOMPSONVILLE...OR ALONG A LINE
EXTENDING FROM 6 MILES NORTHWEST OF FLATONIA TO 11 MILES NORTH OF
GONZALES...MOVING SOUTHWEST AT 10 MPH.

SOME LOCATIONS IN THE WARNING AREA INCLUDE 
HARWOOD...NEWTONVILLE...WAELDER AND LITTLE NEW YORK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 2982 9718 2966 9713 2944 9737 2968 9750
TIME...MOT...LOC 0015Z 065DEG 9KT 2973 9721 2966 9745

$$
229 
WWUS54 KEWX 270040
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
740 PM CDT TUE JUN 26 2012

TXC149-177-270050-
/O.EXP.KEWX.SV.W.0095.000000T0000Z-120627T0045Z/
FAYETTE TX-GONZALES TX-
740 PM CDT TUE JUN 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GONZALES AND
SOUTHWESTERN FAYETTE COUNTIES WILL EXPIRE AT 745 PM CDT...

THE THUNDERSTORMS HAVE RAPIDLY WEAKENED BELOW SEVERE LEVELS. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.

LAT...LON 2982 9718 2966 9713 2944 9737 2968 9750
TIME...MOT...LOC 0040Z 065DEG 9KT 2970 9728 2963 9752

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 6:26 PM CDTSevere Thunderstorm WarningEWXFayette, Lavaca49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.