Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 73, NWS Austin/San Antonio, TX

March 29, 2000Hays County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 29, 2000, 6:03 AM CST for Hays County, Texas. It was in force for 27 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
Mar 29, 2000, 6:03 AM CST (12:03 UTC)
Expired
Mar 29, 2000, 6:30 AM CST
In force
27 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Hays County, TX

The radar

The Austin/San Antonio radar (KEWX), 43 km from the middle of the area, began a volume at 12:05 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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 29, 3:30 AM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 0.1 hours before the alert went out and 272 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 2000-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1017 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 12:00Z on 2000-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
1017 J/kg
Mixed-layer CIN
-403 J/kg
Mixed-layer LCL
838 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 291204
SVRSAT
TXC209-291230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
603 AM CST WED MAR 29 2000

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

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  HAYS COUNTY

* UNTIL 630 AM CST

* AT 603 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER WOODCREEK...OR ABOUT 3 MILES NORTHWEST OF
  WIMBERLEY...MOVING EAST AT 30 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
    WOODCREEK
    WIMBERLEY
    DRIFTWOOD

.END/ LAT...LON 3007 9824 2994 9809 3003 9780 3030 9815

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 6:16 PM CSTTornado WarningEWXBlanco59 min
Mar 28, 6:38 PM CSTTornado WarningEWXHays52 min
Mar 28, 6:41 PM CSTSevere Thunderstorm WarningEWXBexar64 min
Mar 28, 6:50 PM CSTSevere Thunderstorm WarningEWXMedina40 min
Mar 28, 6:53 PM CSTTornado WarningEWXBexar67 min
Mar 28, 7:06 PM CSTSevere Thunderstorm WarningEWXHall24 min
Mar 28, 7:33 PM CSTTornado WarningEWXCaldwell, Hays42 min
Mar 28, 7:54 PM CSTTornado WarningEWXBexar, Wilson51 min
Mar 29, 2:34 AM CSTSevere Thunderstorm WarningEWXBurnet, Llano56 min
Mar 29, 3:26 AM CSTSevere Thunderstorm WarningEWXLlano64 min
Mar 29, 4:00 AM CSTSevere Thunderstorm WarningEWXBurnet60 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.