Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 42, NWS Austin/San Antonio, TX

April 4, 1995Atascosa County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 4, 1995, 1:19 PM CDT for Atascosa County, Texas. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Apr 4, 1995, 1:19 PM CDT (18:19 UTC)
Expired
Apr 4, 1995, 2:15 PM CDT
In force
56 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Atascosa County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 6.3 hours before the alert went out and 174 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 1995-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2580 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 1995-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
2580 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
535 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
1.8
Supercell composite
7.5

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSAT 041822 RRA
SVRSAT
TXC013-041915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
119 PM CDT TUE APR 4 1995
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...ATASCOSA COUNTY
 
THE NATIONAL WEATHER SERVICE DOPPLER RADAR INCICATED A SERVERE
THUNDERSTORM 5 MILES WEST OF CHARLOTTE. THE STORM WAS MOVING TOWARD THE
EAST AT 20 MPH. THIS STORM WILL MOVE THROUGH THE TOWNS OF JOURDANTON AND
PLEASANTON.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.
 
STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER INFO.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 3:27 AM CDTFlash Flood WarningEWXVal Verde4 hr
Apr 4, 8:11 AM CDTSevere Thunderstorm WarningEWXCalhoun34 min
Apr 4, 8:25 AM CDTSevere Thunderstorm WarningEWXLa Salle65 min
Apr 4, 8:29 AM CDTTornado WarningEWXCalhoun31 min
Apr 4, 9:08 AM CDTTornado WarningEWXVictoria37 min
Apr 4, 9:29 AM CDTSevere Thunderstorm WarningEWXMcMullen61 min
Apr 4, 12:08 PM CDTSevere Thunderstorm WarningEWXBandera, Medina52 min
Apr 4, 12:21 PM CDTSevere Thunderstorm WarningEWXFrio69 min
Apr 4, 5:51 PM CDTSevere Thunderstorm WarningEWXVal Verde69 min
Apr 4, 6:53 PM CDTSevere Thunderstorm WarningEWXKinney67 min

Nearby

Severe Thunderstorm Warnings in Texas, 1995Every severe thunderstorm warning in 1995

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.