Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 113, NWS Austin/San Antonio, TX

May 18, 1995Atascosa County, Bexar County, Medina County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 18, 1995, 12:04 AM CDT for Atascosa County, Bexar County, Medina County, Texas. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 12:04 AM CDT (05:04 UTC)
Expired
May 18, 1995, 1:00 AM CDT
In force
56 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Atascosa County, TX, Bexar County, TX, Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 85 km from the middle of the area, began a volume at 05:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.1 hours before the alert went out and 206 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 00:00Z on 1995-05-18Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 1995-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3603 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
155 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 
TTAA00 KSAT 180510
SVRSAT
TXC013-029-325-180600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1204 AM CDT THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHERN ATASCOSA COUNTY...SOUTHERN BEXAR COUNTY
   ...SOUTHEASTERN MEDINA COUNTY
 
AT 12 MIDNIGHT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
NEAR THE MEDINA-ATASCOSA-BEXAR COUNTY LINE.  MOVEMENT WAS
TOWARD THE EAST AT 30 MPH.  GOLF-BALL SIZED HAIL HAS BEEN
REPORTED IN THIS STORM DURING THE PAST HALF HOUR NEAR THE
BEXAR-ATASCOSA COUNTY LINE.
 
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.
 
PEOPLE IN THE PAFTH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 11:00 PM CDTSevere Thunderstorm WarningEWXWilliamson60 min
May 17, 11:11 PM CDTSevere Thunderstorm WarningEWXBexar, Medina64 min
May 18, 12:25 AM CDTSevere Thunderstorm WarningEWXWilson65 min
May 18, 12:55 AM CDTSevere Thunderstorm WarningEWXDeWitt, Gonzales, Karnes65 min
May 18, 1:28 AM CDTSevere Thunderstorm WarningEWXAtascosa, Frio47 min
May 18, 2:06 AM CDTSevere Thunderstorm WarningEWXAtascosa54 min
May 18, 2:39 AM CDTSevere Thunderstorm WarningEWXKarnes, Wilson66 min
May 18, 4:05 AM CDTSevere Thunderstorm WarningEWXMcMullen40 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; radar from the NEXRAD Level II archive.