Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 16, NWS Austin/San Antonio, TX

May 6, 2001Llano County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at May 6, 2001, 6:00 PM CDT for Llano County, Texas. It was in force for 45 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 6, 2001, 6:00 PM CDT (23:00 UTC)
Expired
May 6, 2001, 6:45 PM CDT
In force
45 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Llano County, TX

What was reported inside it

TimeReportWhereRemark
May 6, 6:10 PM CDTHail 1Llano, TX
May 6, 6:40 PM CDTHail 1.5Llano, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
May 6, 2:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.0 hours before the alert went out and 255 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 2001-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2568 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, Del Rio, TX at 12:00Z on 2001-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
2568 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 062301
TORSAT
TXC299-062345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SUN MAY 6 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  LLANO

* UNTIL 645 PM CDT

* AT 600 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH STRONG ROTATION THAT MAY PRODUCE A TORNADO AT ANY
  TIME 5 MILES NORTHEAST OF LLANO...MOVING EAST AT 25 MPH.

* THE TORNADO PRODUCING STORM IS EXPECTED TO BE...
  7 MILES SOUTH OF TOW AT 620 PM
  5 MILES NORTH OF CASTELL AT 625 PM
  7 MILES NORTH OF KINGSLAND AT 630 PM


LAT...LON 3091 9888 3070 9892 3063 984=4 3091 9846

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, 9:18 PM CDTTornado WarningEWXDimmit, Maverick57 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, 6:40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.