Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 124, NWS Austin/San Antonio, TX

May 4, 2000Gonzales County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 4, 2000, 7:56 PM CDT for Gonzales County, Texas. It was in force for 64 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
May 4, 2000, 7:56 PM CDT (00:56 UTC)
Expired
May 4, 2000, 9:00 PM CDT
In force
64 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Gonzales County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.9 hours before the alert went out and 202 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 2000-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3358 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 00:00Z on 2000-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 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
3358 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
692 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 050059
SVRSAT
TXC177-050200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
756 PM CDT THU MAY 4 2000

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

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

* UNTIL 900 PM CDT

* AT 756 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 23 MILES NORTH OF GONZALES...OR ABOUT 16 MILES
  EAST OF LOCKHART...MOVING SOUTH AT 15 MPH.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.


LAT...LON 2944 9761 2944 9733 2972 9736 2965 9756

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 4, 7:00 PM CDT, 56 minutes earlier.

Area forecast discussion, May 4, 7:00 PM CDT, 56 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
700 PM CDT THU MAY 4 2000

UPDATED ZONES TO BOOST POPS EAST...ADD POPS SAT AREA FOR THIS
EVENING AND ADD MENTION OF POSSIBLY SEVERE EAST HALF OF CWA.  HIGH
CAPES...ESPECIALLY E/SE WITH LITTLE CAP.  OTHERWISE NO CHANGES.
READY FOR THIS NASTY UPPER LOW TO MOVE ON OUT.

.EWX...NONE.

03/01/20

In the hours before

Special weather statement, May 4, 5:00 PM CDT, 2 hours 56 minutes before
TXZ193-194-209-223>225-042245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT THU MAY 4 2000

A STRONG THUNDERSTORM WITH VERY HEAVY RAIN HAS DEVELOPED NEAR LAKE
FAYETTE IN FAYETTE COUNTY.  MOVEMENT WAS GENERALLY SOUTH A NEAR 15
MPH.  THIS STORM IS LIKELY PRODUCING VERY HEAVY RAIN AND GUSTY
WINDS...AND POSSIBLE HAIL.  THE TOWNS OF FAYETTEVILLE AND ELLINGER
WILL LIKELY BE AFFECTED BY THIS STORM DURING THE NEXT HOUR.

WHEN THUNDERSTORMS ARE OCCURRING...MOVE INDOORS.  DO NOT STAND BY
WINDOWS.  UNLESS IT IS AN EMERGENCY...AVOID USING TELEPHONES AND
ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 7:06 PM CDTSevere Thunderstorm WarningEWXCaldwell69 min
May 4, 7:53 PM CDTSevere Thunderstorm WarningEWXGuadalupe67 min
May 4, 8:13 PM CDTSevere Thunderstorm WarningEWXComal62 min
May 4, 8:58 PM CDTSevere Thunderstorm WarningEWXBexar62 min
May 4, 9:56 PM CDTSevere Thunderstorm WarningEWXBexar64 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.