Alert archive / Texas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 99, NWS Austin/San Antonio, TX

May 25, 2011Fayette County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 25, 2011, 10:05 PM CDT for Fayette County, Texas. It was in force for 40 min. 4 reports 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
May 25, 2011, 10:05 PM CDT (03:05 UTC)
Expired
May 25, 2011, 10:45 PM CDT
In force
40 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

County Fayette County, TX

The radar

The Ft Hood radar (KGRK), 112 km from the middle of the area, began a volume at 03:05 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
May 25, 10:16 PM CDTHAIL 0.75La Grange, TX
May 25, 10:23 PM CDTHAIL 1La Grange, TX
May 25, 10:24 PM CDTHAIL 1La Grange, TX
May 25, 10:50 PM CDTHAIL 11 Nne La Grange, TXPEA UP TO QUARTER SIZE HAIL

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

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.1 hours before the alert went out and 240 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 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4864 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.19395878Sfc1 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
4864 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

153 
WUUS54 KEWX 260305
SVREWX
TXC149-260345-
/O.NEW.KEWX.SV.W.0099.110526T0305Z-110526T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1005 PM CDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN FAYETTE COUNTY...

* UNTIL 1045 PM CDT.

* AT 1001 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR LA
  GRANGE...AND MOVING SOUTHEAST AT 15 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE FAYETTEVILLE.

LAT...LON 2978 9674 2974 9678 2974 9679 2991 9705
      3003 9699 2991 9662
TIME...MOT...LOC 0306Z 297DEG 14KT 2992 9693

$$
1 follow-up statement
259 
WWUS54 KEWX 260327
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1027 PM CDT WED MAY 25 2011

TXC149-260345-
/O.CON.KEWX.SV.W.0099.000000T0000Z-110526T0345Z/
FAYETTE TX-
1027 PM CDT WED MAY 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR CENTRAL FAYETTE COUNTY...

AT 1025 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS 
LOCATED NEAR LA GRANGE...EAST OF HIGHWAY 77...MOVING SOUTHEAST AT 15 
MPH.

THIS STORM DOES HAVE HISTORY OF PRODUCING QUARTER SIZE HAIL IN LA 
GRANGE.

SOME LOCATIONS IN THE WARNING AREA INCLUDE RUTERSVILLE...
AMMANNSVILLE...MULLINS PRAIRIE...HOLMAN...FAYETTEVILLE AND ELLINGER.

LAT...LON 2998 9683 2991 9662 2978 9674 2974 9678
      2974 9679 2984 9694
TIME...MOT...LOC 0326Z 297DEG 14KT 2988 9685

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 8:16 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee44 min
May 25, 8:18 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee42 min
May 25, 8:56 PM CDTSevere Thunderstorm WarningEWXFayette19 min
May 25, 9:09 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee36 min
May 25, 9:30 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee30 min
May 25, 10:42 PM CDTSevere Thunderstorm WarningEWXFayette33 min
May 25, 11:01 PM CDTSevere Thunderstorm WarningEWXFayette44 min
May 25, 11:41 PM CDTSevere Thunderstorm WarningEWXFayette, Lavaca49 min
May 26, 12:21 AM CDTSevere Thunderstorm WarningEWXFayette, Lavaca39 min
May 26, 12:43 AM CDTSevere Thunderstorm WarningEWXLavaca32 min
May 26, 1:09 AM CDTTornado WarningEWXLavaca21 min
May 26, 3:16 AM CDTSevere Thunderstorm WarningEWXDeWitt44 min

Nearby

Severe Thunderstorm Warnings in Texas, 2011Every severe thunderstorm warning in 2011

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.