Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Corpus Christi, TX

February 12, 1998La Salle County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Feb 12, 1998, 6:30 PM CST for La Salle County, Texas. It was in force for 60 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
Feb 12, 1998, 6:30 PM CST (00:30 UTC)
Expired
Feb 12, 1998, 7:30 PM CST
In force
60 min
Issued by
NWS Corpus Christi, TX
Area
Whole counties

County La Salle County, TX

What was reported inside it

TimeReportWhereRemark
Feb 12, 6:55 PM CSTHail 1.75Los Angeles, TXNWS Spotter report of golf ball sized hail.

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

Corpus Christi, TX (KCRP), launched 00:00Z, 0.5 hours before the alert went out and 186 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 00:00Z on 1998-02-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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, Corpus Christi, TX at 00:00Z on 1998-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.1939587897117Sfc1 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
105 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
922 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
273 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 KCRP 130030 RRA
SVRCRP
TXC283-130130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
630 PM CST THU FEB 12 1998
 
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY......
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHERN LA SALLE COUNTY
 
AT 625 PM CST DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
MOVING INTO NORTHERN LA SALLE COUNTY. THE STORM WAS LOCATED
JUST NORTH OF MILLETT AND WAS CROSSING INTERSTATE 35.
MOVEMENT WAS TO THE SOUTHEAST AT 20 TO 25 MPH.
 
LARGE HAIL IN EXCESS OF 1 INCH IS POSSIBLE WITH THIS STORM.
THIS STORM WILL MOVE BETWEEN COTULLA AND LOS ANGELES BY
650 PM.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG fBUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 12, 6:06 PM CSTSevere Thunderstorm WarningCRPBee54 min
Feb 12, 6:24 PM CSTTornado WarningCRPBee51 min
Feb 12, 7:13 PM CSTSevere Thunderstorm WarningCRPBee32 min
Feb 12, 7:27 PM CSTSevere Thunderstorm WarningCRPRefugio63 min
Feb 12, 7:52 PM CSTTornado WarningCRPRefugio68 min
Feb 12, 8:01 PM CSTSevere Thunderstorm WarningCRPAransas59 min
Feb 12, 8:11 PM CSTSevere Thunderstorm WarningCRPDuval64 min
Feb 12, 9:23 PM CSTSevere Thunderstorm WarningCRPJim Wells67 min
Feb 12, 9:38 PM CSTSevere Thunderstorm WarningCRPJim Wells, San Patricio67 min
Feb 12, 10:18 PM CSTSevere Thunderstorm WarningCRPNueces57 min

Nearby

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998

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.