Alert archive / Texas / Tornado Warnings in 2006

Tornado Warning 23, NWS Austin/San Antonio, TX

April 28, 2006Edwards County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 28, 2006, 4:33 PM CDT for Edwards County, Texas. It was in force for 42 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
Apr 28, 2006, 4:33 PM CDT (21:33 UTC)
Expired
Apr 28, 2006, 5:15 PM CDT
In force
42 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Edwards County, TX

The radar

The Laughlin AFB radar (KDFX), 91 km from the middle of the area, began a volume at 21:36 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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 28, 1:28 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 9.6 hours before the alert went out and 81 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, Del Rio, TX at 12:00Z on 2006-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1176 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, Del Rio, TX at 12:00Z on 2006-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.1939587897117Sfc1 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
1176 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.9
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 282134
TOREWX
TXC137-282215-
/O.NEW.KEWX.TO.W.0023.060428T2133Z-060428T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
433 PM CDT FRI APR 28 2006

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES...
  EDWARDS

* UNTIL 515 PM CDT

* AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER VAL VERDE
  COUNTY...MOVING EAST AT 35 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3028 10069 3029 10066 3029 10048 2989 10035
      2988 10044 2990 10045 2989 10054 2991 10055
      2992 10069

$$
2 follow-up statements
000 
WWUS54 KEWX 282146
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
445 PM CDT FRI APR 28 2006

TXC137-282215-
/O.CON.KEWX.TO.W.0023.000000T0000Z-060428T2215Z/
EDWARDS TX-
445 PM CDT FRI APR 28 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EDWARDS
COUNTY...

AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADIC THUNDERSTORM.  THIS STORM WAS LOCATED OVER VAL 
VERDE COUNTY...OR ABOUT 8 MILES SOUTHEAST OF JUNO...MOVING EAST AT 
40 MPH.

THE TORNADO WILL BE NEAR...
  HIGHWAY 277 ON THE VAL VERDE EDWARDS COUNTY LINE AT 500 PM CDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3028 10069 3029 10066 3029 10048 2989 10035
      2988 10044 2990 10045 2989 10054 2991 10055
      2992 10069

$$
000 
WWUS54 KEWX 282205
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
504 PM CDT FRI APR 28 2006

TXC137-282215-
/O.CON.KEWX.TO.W.0023.000000T0000Z-060428T2215Z/
EDWARDS TX-
504 PM CDT FRI APR 28 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EDWARDS
COUNTY...

AT 500 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADIC THUNDERSTORM.  THIS STORM WAS LOCATED OVER VAL 
VERDE COUNTY...ABOUT 12 MILES NORTH OF LOMA ALTA...MOVING EAST AT 30 
MPH.

THE TORNADIC STORM WILL BE NEAR...
  HIGHWAY 277 ON THE VAL VERDE EDWARDS COUNTY LINE AT 510 PM CDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3028 10069 3029 10066 3029 10048 2989 10035
      2988 10044 2990 10045 2989 10054 2991 10055
      2992 10069

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 2:41 PM CDTSevere Thunderstorm WarningEWXVal Verde49 min
Apr 28, 3:28 PM CDTSevere Thunderstorm WarningEWXVal Verde62 min
Apr 28, 3:37 PM CDTTornado WarningEWXVal Verde23 min
Apr 28, 3:58 PM CDTTornado WarningEWXVal Verde62 min
Apr 28, 5:00 PM CDTTornado WarningEWXVal Verde15 min
Apr 28, 5:11 PM CDTTornado WarningEWXEdwards34 min
Apr 28, 5:45 PM CDTSevere Thunderstorm WarningEWXEdwards28 min
Apr 28, 6:10 PM CDTTornado WarningEWXEdwards35 min
Apr 28, 6:38 PM CDTSevere Thunderstorm WarningEWXKerr37 min

Nearby

Tornado Warnings in Texas, 2006Every tornado warning in 2006Tornadoes in 2006

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.