Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 159, NWS Austin/San Antonio, TX

September 2, 2000Bastrop County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 2, 2000, 6:47 PM CDT for Bastrop County, Texas. It was in force for 43 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
Sep 2, 2000, 6:47 PM CDT (23:47 UTC)
Expired
Sep 2, 2000, 7:30 PM CDT
In force
43 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Bastrop County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.8 hours before the alert went out and 262 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 2000-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1109 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 2000-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -78 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
1109 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
1315 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-78 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
-3.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 022348
SVRSAT
TXC021-030030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
647 PM CDT SAT SEP 2 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 730 PM CDT

* AT 647 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTH O_F BASTROP...MOVING SOUTHWEST AT
  15 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  BASTROP
  ROSANKY

* DAMAGING WINDS ARE THE PRIMARY THREAT.  

LAT...LON 3007 9762 2986 9728 3011 9708 3033 9737

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 Sep 2, 2:00 PM CDT, 4 hours 47 minutes earlier.

Area forecast discussion, Sep 2, 2:00 PM CDT, 4 hours 47 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
200 PM CDT SAT SEP 02 2000

A FEW OF THE CUMULI WHICH ARE FORMING OVER THE EASTERN HALF OF THE
AREA COULD DEVELOP INTO ISOLATED TO SCATTERED THUNDERSTORMS WITH THE
ADDITIONAL AFTERNOON HEATING.  ANY THUNDERSTORMS WHICH DO DEVELOP
SHOULD DISSIPATE AROUND SUNSET.  THE ETA AND AVN SHOW CONTINUED VERY
HOT MAINLY DRY CONDITIONS OVER THE FORECAST AREA THROUGH MONDAY AT
LEAST.  SO WILL FORECAST GENERAL PERSISTENCE IN THE 1-2 DAY FORECAST.
WINDS SHOULD NOT BE STRONG ENOUGH TO CONTINUE THE RED FLAG WARNING.

IN THE 3-5 DAY FORECAST...THE MAJOR TROF OVER THE NORTHWEST U.S.
WORKS INLAND THROUGH THE MIDDLE PART OF THE WEEK AND A MAJOR SHIFT
IN THE GENERAL UPPER AIR PATTERN NOW SEEMS TO BE COMING INTO PLAY.
AN UPPER-LEVEL JET DEVELOPS INTO THE SOUTHWEST U.S.  IN ASSOCIATION
WITH THE STRONG TROF OVER THE NORTHERN PLAINS A BETTER LIFTING
PATTERN DEVELOPS...PARTICULARLY BY THE FRI AND SAT PERIOD.  THE
ENSEMBLE PRECIP CHARTS ALSO SHOW INCREASED RAIN CHANCES AS THE END
OF THE WEEK APPROACHES.  PREVIOUS FORECAST POINTED IN THIS WETTER
DIRECTION AND WILL KEEP THAT TREND IN THE WORDING FOR SAT AS WELL.

PRELIMINARY NUMBERS...
AUS 73/105/72/105 1111
SAT 75/102/75/102 1111
DRT 77/104/77/104 0000

.EWX...NONE.

16/02/DC

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 6:35 PM CDTSevere Thunderstorm WarningEWXLee55 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.