Alert archive / Texas / Tornado Warnings in 1999

Tornado Warning 2, NWS Austin/San Antonio, TX

January 1, 1999Guadalupe County, Wilson County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jan 1, 1999, 7:03 PM CST for Guadalupe County, Wilson County, Texas. It was in force for 62 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
Jan 1, 1999, 7:03 PM CST (01:03 UTC)
Expired
Jan 1, 1999, 8:05 PM CST
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Guadalupe County, TX, Wilson County, TX

What was reported inside it

TimeReportWhereRemark
Jan 1, 7:15 PM CSTTornado F0Stockdale, TX
Jan 1, 7:21 PM CSTTornado F0Seguin, 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 nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.1 hours before the alert went out and 195 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 1999-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1786 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, Corpus Christi, TX at 00:00Z on 1999-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
1786 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
589 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
301 m²/s²
Significant tornado parameter
3.3
Supercell composite
10.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 020103 RRA
TORSAT
TXC187-493-020205-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
703 PM CST FRI JAN 1 1999

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN GUADALUPE IN TEXAS
  NORTHERN WILSON IN TEXAS

* UNTIL 805 PM CST

* AT 700 PM CST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO NORTH OF STOCKDALE... MOVING EAST NORTHEAST AT NEAR 30
  MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  NORTHEAST WILSON AND SOUTHWEST GUADUALUPE AT THIS TIME

IF YOU ARE IN A MULTIPLE STORY BUILDING...GO TO A SMALL INTERIOR
ROOM AWAY FROM WINDOWS.

JDS

DO NOT USE YOUR CAR TO OUTRUN A TORNAD:O. CARS ARE EASILY TOSSED
AROUND BY TORNADIC WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO... LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...SEEK SAFETY IN A DITCH OR LOW SPOT. BE
MINDFUL OF RISING WATERS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 6:20 PM CSTSevere Thunderstorm WarningEWXBastrop, Travis, Williamson75 min
Jan 1, 6:58 PM CSTTornado WarningEWXLee47 min
Jan 1, 7:12 PM CSTSevere Thunderstorm WarningEWXGonzales93 min
Jan 1, 7:19 PM CSTTornado WarningEWXCaldwell61 min
Jan 1, 7:32 PM CSTTornado WarningEWXGonzales63 min
Jan 1, 8:05 PM CSTFlash Flood WarningEWXGonzales2 hr
Jan 1, 8:26 PM CSTSevere Thunderstorm WarningEWXFayette, Lavaca89 min
Jan 1, 8:50 PM CSTTornado WarningEWXLavaca65 min
Jan 1, 9:19 PM CSTTornado WarningEWXGonzales, Lavaca61 min
Jan 1, 9:25 PM CSTFlash Flood WarningEWXLavaca3 hr
Jan 1, 10:43 PM CSTFlash Flood WarningEWXFayette, Gonzales92 min
Jan 1, 10:43 PM CSTSevere Thunderstorm WarningEWXFayette, Gonzales92 min
Jan 1, 11:31 PM CSTFlash Flood WarningEWXFayette, Lavaca119 min

Nearby

Tornado Warnings in Texas, 1999Every tornado warning in 1999Tornadoes in 1999

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.