Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 13, NWS Austin/San Antonio, TX

May 5, 2001Dimmit County, Maverick County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at May 5, 2001, 9:18 PM CDT for Dimmit County, Maverick County, Texas. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
May 5, 2001, 9:18 PM CDT (02:18 UTC)
Expired
May 5, 2001, 10:15 PM CDT
In force
57 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Dimmit County, TX, Maverick County, TX

The radar

The Laughlin AFB radar (KDFX), 95 km from the middle of the area, began a volume at 02:18 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

Del Rio, TX (KDRT), launched 00:00Z, 2.3 hours before the alert went out and 131 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 00:00Z on 2001-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2880 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 00:00Z on 2001-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.1939587897Sfc1 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
2880 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
2.7
Supercell composite
11.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 060220
TORSAT

TXC127-323-060245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
918 PM CDT SAT MAY 5 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  DIMMIT
  MAVERICK

* UNTIL 1015 PM CDT

* AT 915 PM...THE PUBLIC REPORTED A TORNADO 10 MILES EAST OF EL
  INDIO...MOVING EAST AT 20 MPH.

* THE TORNADO PRODUCING STORM IS EXPECTE@D TO BE...
  7 MILES SOUTH OF CARRIZO SPRINGS AT 945 PM
  3 MILES SOUTH OF ASHERTON AT 1000 PM

IF YOU ARE NEAR THIS STORM OR IN THE PATH...SEEK SHELTER NOW.

LAT...LON 2862 10044 2821 10021 2821 9940 2863 9941

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 8:20 PM CDTTornado WarningEWXMaverick60 min
May 5, 10:12 PM CDTTornado WarningEWXDimmit48 min
May 5, 11:10 PM CDTSevere Thunderstorm WarningEWXMaverick50 min
May 5, 11:53 PM CDTTornado WarningEWXDimmit52 min
May 6, 5:05 PM CDTSevere Thunderstorm WarningEWXLlano30 min
May 6, 5:39 PM CDTSevere Thunderstorm WarningEWXLlano51 min
May 6, 5:48 PM CDTSevere Thunderstorm WarningEWXAtascosa, Frio57 min
May 6, 6:00 PM CDTTornado WarningEWXLlano45 min
May 6, 6:40 PM CDTSevere Thunderstorm WarningEWXBurnet65 min

Nearby

Tornado Warnings in Texas, 2001Every tornado warning in 2001Tornadoes in 2001

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.