Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 54, NWS Austin/San Antonio, TX

November 12, 2000DeWitt County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Nov 12, 2000, 5:55 PM CST for DeWitt County, Lavaca County, Texas. It was in force for 65 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Nov 12, 2000, 5:55 PM CST (23:55 UTC)
Expired
Nov 12, 2000, 7:00 PM CST
In force
65 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties DeWitt County, TX, Lavaca County, TX

What was reported inside it

TimeReportWhereRemark
Nov 12, 6:10 PM CSTTornado F0Shiner, TXA small tornado was observed by Sheriff's Deputies as it touched down just west of Shiner. The tornado knocked over several trees but caused no other damage.

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
Nov 12, 1:30 PM CSTTornado WatchSPC6 hr
Nov 12, 5:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 185 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 2000-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 622 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 12:00Z on 2000-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
622 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 122356
TORSAT

TXC123-285-130100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
555 PM CST SUN NOV 12 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  LAVACA COUNTY
  DEWITT COUNTY

* UNTIL 700 PM CST

* AT 555 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH STRONG SIGNS THAT A TORNADO IS DEVELOPING 5 MILES
  WEST OF HOCHHEIM...OR ABOUT 13 MILES SOUTH OF GONZALES...MOVING
  EAST AT 20 MPH.

* THE TORNADO PRODUCING STORM IS EXPECTED TO BE...
  OVER HOCHHEIM AT 605 PM CST
  OVER YOAKUM AT 630 PM CST

* ANOTHER THUNDERSTORMS WITH STRONG SIGNS OF A TORNADO WAS 10 MILES WEST
  OF MOULTON...MOVING EAST AT 30 MPH.  THIS STORM WILL BE NEAR MOULTON 
  AT 610 PM CST.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A WELL-BUILT BUILDING.
IF NO BASEMENT IS AVAILABLE...GO TO A CENTRAL...SMALL ROOM ON THE
LOWEST FLOOR...SUCHg AS A BATHROOM...CLOSET OR HALLWAY. STAY AWAY FROM
OUTSIDE WINDOWS AND DOORS. USE BLANKETS OR PILLOWS TO COVER YOUR
BODY.


LAT...LON 2926 9742 2917 9738 2918 9703 2956 9684
          2963 9688 2962 9717 2941 9722

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 1:07 PM CSTTornado WarningEWXBastrop, Fayette63 min
Nov 12, 1:13 PM CSTTornado WarningEWXCaldwell47 min
Nov 12, 1:57 PM CSTTornado WarningEWXLavaca48 min
Nov 12, 1:59 PM CSTTornado WarningEWXFayette61 min
Nov 12, 2:18 PM CSTTornado WarningEWXBastrop57 min
Nov 12, 2:31 PM CSTTornado WarningEWXHays59 min
Nov 12, 2:57 PM CSTTornado WarningEWXFayette63 min
Nov 12, 3:03 PM CSTTornado WarningEWXGonzales, Lavaca57 min
Nov 12, 3:06 PM CSTTornado WarningEWXCaldwell54 min
Nov 12, 3:42 PM CSTTornado WarningEWXBastrop63 min
Nov 12, 3:57 PM CSTTornado WarningEWXLavaca48 min
Nov 12, 4:29 PM CSTTornado WarningEWXFayette61 min
Nov 12, 4:49 PM CSTTornado WarningEWXAtascosa, Wilson56 min
Nov 12, 5:07 PM CSTTornado WarningEWXGonzales53 min
Nov 12, 5:14 PM CSTTornado WarningEWXLavaca61 min
Nov 12, 5:43 PM CSTTornado WarningEWXGuadalupe, Wilson62 min

Nearby

Tornado Warnings in Texas, 2000Every tornado warning in 2000Tornadoes in 2000

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.