Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 82, NWS Austin/San Antonio, TX

April 2, 2000Frio County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 2, 2000, 11:57 AM CDT for Frio County, Texas. It was in force for 48 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
Apr 2, 2000, 11:57 AM CDT (16:57 UTC)
Expired
Apr 2, 2000, 12:45 PM CDT
In force
48 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Frio County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 5.0 hours before the alert went out and 167 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, Del Rio, TX at 12:00Z on 2000-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Del Rio, TX at 12:00Z on 2000-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -78 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-78 m²/s²
0-3 km storm-relative helicity
115 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 021659
SVRSAT
TXC163-021745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1157 AM CDT SUN APR 2 2000

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

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

* UNTIL 1245 PM CDT

* AT 1157 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES WEST OF DILLEY...OR ABOUT 10 MILES
  EAST OF BIG WELLS...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DILLEY AROUND 1210 PM CDT
  DERBY AROUND 1230 PM CDT

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.

.END/ LAT...LON 2870 9940 2865 9940 2865 9911 2893 9911

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 Apr 2, 11:15 AM CDT, 42 minutes earlier.

Area forecast discussion, Apr 2, 11:15 AM CDT, 42 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1115 AM CDT SUN APR 2 2000

CANCELED THE FLASH FLOOD WATCH SINCE MODELS INDICATE A DECREASE IN
ACTIVITY THIS MAFTERNOON...RAPID MOVEMENT OF WHAT STORMS THERE ARE...
AND SHIFT OF FOCUS OF HEAVY RAIN TOWARD COAST.  THREAT OF LARGE HAIL
CONTINUES ALL BUT DRT AREA THIS AFTERNOON.

.EWX...NONE.

03/01/CA

In the hours before

Special weather statement, Apr 2, 6:00 AM CDT, 5 hours 57 minutes before
TXZ171>173-183>194-202>209-217>225-228-021700-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 AM CDT SUN APR 2 2000

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND THROUGH
TONIGHT ACROSS MOST OF SOUTH CENTRAL TEXAS.  THIS AREA IS ALONG AND
EAST OF A LINE FROM JUNCTION TO LEAKEY TO COTULLA.

A STRONG UPPER LEVEL TROUGH OF LOW PRESSURE OVER NORTHWESTERN MEXICO
IS EXPECTED TO CONTINUE TO MOVE SLOWLY EASTWARD AND A COLD FRONT WILL
STALL ALONG FAR SOUTHERN SECTIONS OF SOUTH CENTRAL TEXAS.  IN
ADDITION...A MOIST AIRMASS WILL PERSIST ACROSS SOUTHERN TEXAS.

THE UPPER LEVEL TROUGH AND COLD FRONT WILL INTERACT WITH THE MOIST
AIRMASS AND AIDED BY DAYTIME HEATING...SCATTERED TO NUMEROUS SHOWERS
AND THUNDERSTORMS WILL DEVELOP...MAINLY ALONG THE FRONT.  SOME OF
STORMS MAY BECOME SEVERE ACROSS PORTIONS OF SOUTH CENTRAL TEXAS.  THE
APPROACH OF ANOTHER AND MUCH STRONGER COLD FRONT WILL HELP SUSTAIN
SHOWERS AND THUNDERSTORM DEVELOPMENT TONIGHT.

THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS FROM SOME OF
THE STRONGEST STORMS.  ISOLATED TORNADOES ALSO ARE A POSSIBLE ALONG
THE COLD FRONT.  SOME OF THE SHOWERS AND THUNDERSTORMS COULD
REPEATEDLY DEVELOP AND MOVE OVER THE SAME AREAS...PRODUCING HEAVY
RAINS...ESPECIALLY ALONG AND NORTH OF THE COLD FRONT.

SPOTTER NETWORKS MAY NEED TO BE ACTIVATED ACROSS THE HILL COUNTRY
AND ADJACENT AREAS OF SOUTH CENTRAL TEXAS THIS AFTERNOON AND TONIGHT.
THE SPOTTERS MAY BE NEEDED FOR A PROLONGED PERIOD AS THE STORMS
LIKELY WILL PERSIST THROUGH TONIGHT AND INTO MONDAY.

FOR INFORMATION ON WEATHER THREATS IN SURROUNDING AREAS...REFER TO
OUTLOOKS FROM OFFICES IN MIDLAND...SAN ANGELO...FORT WORTH...
HOUSTON/GALVESTON AND CORPUS CHRISTI.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 1, 8:19 PM CSTSevere Thunderstorm WarningEWXAtascosa71 min
Apr 1, 8:23 PM CSTSevere Thunderstorm WarningEWXBurnet67 min
Apr 1, 8:53 PM CSTSevere Thunderstorm WarningEWXWilliamson67 min
Apr 1, 9:19 PM CSTSevere Thunderstorm WarningEWXBexar56 min
Apr 1, 10:12 PM CSTSevere Thunderstorm WarningEWXKendall63 min
Apr 1, 10:25 PM CSTSevere Thunderstorm WarningEWXAtascosa65 min
Apr 1, 10:36 PM CSTSevere Thunderstorm WarningEWXBlanco54 min
Apr 2, 9:15 AM CDTSevere Thunderstorm WarningEWXBlanco, Burnet60 min
Apr 2, 12:17 PM CDTSevere Thunderstorm WarningEWXBexar58 min
Apr 2, 12:28 PM CDTSevere Thunderstorm WarningEWXAtascosa42 min
Apr 2, 1:00 PM CDTTornado WarningEWXBexar45 min
Apr 2, 1:32 PM CDTSevere Thunderstorm WarningEWXGuadalupe43 min
Apr 2, 5:15 PM CDTSevere Thunderstorm WarningEWXBurnet60 min
Apr 2, 6:08 PM CDTSevere Thunderstorm WarningEWXBurnet52 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.