Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 157, NWS Austin/San Antonio, TX

July 30, 2000Lee County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 30, 2000, 6:28 PM CDT for Lee County, Texas. It was in force for 47 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
Jul 30, 2000, 6:28 PM CDT (23:28 UTC)
Expired
Jul 30, 2000, 7:15 PM CDT
In force
47 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Lee County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.5 hours before the alert went out and 266 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, Fort Worth, TX at 12:00Z on 2000-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 125 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, Fort Worth, TX at 12:00Z on 2000-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 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
125 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1288 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 302328
SVRSAT
TXC287-310015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
628 PM CDT SUN JUL 30 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 628 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER TANGLEWOOD...OR ABOUT 8 MILES NORTHEAST OF
  LEXINGTON...MOVING SOUTH AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  OVER LEXINGTON AT 705 PM CDT
  


LAT...LON 3056 9682 3063 9702 3033 9715 3018 9694

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 Jul 30, 2:00 PM CDT, 4 hours 28 minutes earlier.

Area forecast discussion, Jul 30, 2:00 PM CDT, 4 hours 28 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
200 PM CDT SUN JUL 30 2000

FRONTAL BOUNDARY TO REMAIN OVER SOUTH CENTRAL TEXAS THROUGH THE
PERIOD.  MRF PUSHES BOUNDARY TOWARD THE COAST IN THE EXTENDED PERIOD
BEFORE BRINGING NORTHWARD ONCE AGAIN.  WILL NOT PUT TOO MUCH FAITH
IN MOVEMENT AT THIS POINT.  CONVECTION FIRING WEST THIS AFTERNOON
SOONER THAN EXPECTED.  MODELS STILL INDICATING WEAK IMPULSE TO PASS
OVER REGION TONIGHT BUT GIVEN LACK OF RAIN PRODUCTION LAST NIGHT
EXPECT CONVECTION TO DIE ONCE AGAIN.  STRONGER IMPULSE ON LATE
MONDAY/TUESDAY ENHANCING RAIN CHANCES CENTRAL AND WEST.  EXPECT ONLY
SCATTERED CONVECTON NEAR BOUNDARY MONDAY UNTIL THIS SHORT WAVE
APPROACHES.  POPS AND TEMPS DEPENDENT ON LOCATION OF BOUNDARY WHICH
IN SOME AREAS IS LESS THAN A COUNTY WIDE.  POST RAIN TEMPS SHOULD
BOUNCE BACK QUICKLY WEST OF I35 AS GROUND WILL SOAK UP ANYTHING IT
CAN GET AND LITTLE IN THE WAY OF EVAPOTRANSPIRATION HAPPENING.
EASTERN ZONES MAY BE A LITTLE SLOWER TO MOVE INTO UPPER 90S AFTER
RAIN.

PRELIMINARY NUMBERS...
DRT 76/95/73/97 2322
AUS 72/92/72/95 2332
SAT 72/92/72/95 2332

.EWX...NONE.
10D/13/PM

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.