Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 20, NWS Austin/San Antonio, TX

March 26, 2000Comal County, Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Mar 26, 2000, 6:53 PM CST for Comal County, Guadalupe County, Texas. It was in force for 67 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
Mar 26, 2000, 6:53 PM CST (00:53 UTC)
Expired
Mar 26, 2000, 8:00 PM CST
In force
67 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Comal County, TX, Guadalupe County, TX

What was reported inside it

TimeReportWhereRemark
Mar 26, 7:25 PM CSTTornado F0Seguin, TXA small and short-lived tornado struck near a building along SH46 just north of I-10. The tornado destroyed two large trees.

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
Mar 26, 5:15 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.9 hours before the alert went out and 239 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 2000-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1032 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 2000-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
1032 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 270059
TORSAT
TXC091-187-270200-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
653 PM CST SUN MAR 26 2000

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

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...  
  COMAL COUNTY
  GUADALUPE COUNTY

* UNTIL 8 PM CST

* AT 653 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A DEVELOPING TORNADO IN THE SEVERE THUNDERSTORM 10 MILES           
  NORTHWEST OF NEW BRAUNFELS...OR IN THE SATTLER-CANYON LAKE         
  AREA...MOVING SOUTHEAST AT 20 MPH TOWARD NEW BRAUNFELS.  

A TORNADO WATCH IS IN EFFECT. MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTUR!E SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS 
SPOTTED.

.END/ LAT...LON 2993 9828 2980 9814 2957 9802 2963 9781

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 6:10 PM CSTSevere Thunderstorm WarningEWXComal, Hays65 min
Mar 26, 6:22 PM CSTSevere Thunderstorm WarningEWXBlanco38 min
Mar 26, 7:16 PM CSTSevere Thunderstorm WarningEWXHays59 min
Mar 26, 7:44 PM CSTSevere Thunderstorm WarningEWXGonzales, Wilson61 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.