Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 10, NWS Austin/San Antonio, TX

April 4, 1996Maverick County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 4, 1996, 8:55 PM CST for Maverick County, Texas. It was in force for 65 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 4, 1996, 8:55 PM CST (02:55 UTC)
Expired
Apr 4, 1996, 10:00 PM CST
In force
65 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Maverick County, TX

The radar

The Laughlin AFB radar (KDFX), 59 km from the middle of the area, began a volume at 02:56 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.

What was reported inside it

TimeReportWhereRemark
Apr 4, 9:34 PM CSTHail 2Eagle Pass, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.9 hours before the alert went out and 86 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 1996-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1597 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, Del Rio, TX at 00:00Z on 1996-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -50 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
1597 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-50 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 050309 COR
SVRSAT
TXC323-050400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION...
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CST THU APR 4 1996

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL TEXAS

   ...MAVERICK COUNTY

AT 854 PM CST A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR
NEAR PIEDRAS NEGRAS JUST ACROSS THE RIVER FROM EAGLE PASS.

THIS STORM IS CAPABLE OF PRODUCING LARGE HAIL AND STRONG WINDS.

IT WAS MOVING TO THE EAST AT 10 MPH AND SHOULD MOVE INTO MAVERICK
COUNTY ON THE SOUTH SIDE OF EAGLE PASS BY 930 PM.

PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSIbNGS.

IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO
THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE
NATIONAL WEATHER SERVICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 6:43 PM CSTSevere Thunderstorm WarningEWXKerr47 min
Apr 4, 7:29 PM CSTSevere Thunderstorm WarningEWXKendall61 min
Apr 4, 8:10 PM CSTSevere Thunderstorm WarningEWXEdwards, Real65 min
Apr 4, 9:56 PM CSTSevere Thunderstorm WarningEWXKerr64 min
Apr 4, 10:05 PM CSTSevere Thunderstorm WarningEWXMaverick55 min
Apr 5, 3:46 AM CSTSevere Thunderstorm WarningEWXWebb44 min
Apr 5, 2:53 PM CSTSevere Thunderstorm WarningEWXVictoria67 min
Apr 5, 3:49 PM CSTSevere Thunderstorm WarningEWXVictoria56 min

Nearby

Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.