Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 56, NWS Corpus Christi, TX

February 21, 1998Refugio County, San Patricio County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Feb 21, 1998, 8:55 PM CST for Refugio County, San Patricio County, Texas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 21, 1998, 8:55 PM CST (02:55 UTC)
Expired
Feb 21, 1998, 10:00 PM CST
In force
65 min
Issued by
NWS Corpus Christi, TX
Area
Whole counties

Counties Refugio County, TX, San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 46 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 21, 3:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 2.9 hours before the alert went out and 48 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 1998-02-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1168 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 00:00Z on 1998-02-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
1168 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
661 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
1.2
Supercell composite
5.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 21, 3:10 PM CST, 5 hours 45 minutes earlier.

Area forecast discussion, Feb 21, 3:10 PM CST, 5 hours 45 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
310 PM CST SAT FEB 21 1998

A VERY ACTIVE WX PATTERN CONTINUES TO UNFOLD ACROSS THE CWA THIS
AFTERNOON.  LOOK LIKE THE EVENT IS NOW UNDERWAY AND SPC HAS JUST COME
OUT WITH TOR WATCH 52.  THIS COVERS THE ENTIRE CWA.  AFTER STORMS
MOVE THROUGH TONIGHT THINGS WILL CLR FAIRLY RAPIDLY BEHIND THE SYSTEM
ON SUN.  WITH A W/NW FLOW AT H5 DRY WX PATTERN WILL AGAIN TAKE OVER
WITH SUNNY DRY DAYS AND CLEAR COOL NIGHTS.  THEN NEXT IN THE NEVER
ENDING SERIES OF WEST COAST SYSTEMS WILL ARRIVE BY MID WEEK WITH
INCREASING PCPN CHCS AGAIN.

STRONG S/W CONTINUES TO HEAD E/SE AND WILL MOVE ACROSS LATER TONIGHT.
SFC LOW WILL DEVELOP TO THE S CRP AND MOVE NE TO OFF THE COAST OF GLS
BY 12Z SUN AND CONTINUE NEWRD FROM THERE.  ADAP SMC INDICATES A
BULLSEYE OVER THE CWA FROM THE COASTAL BEND/RIO GRANDE PLAINS TO VCT
AND LIS HAVE FALLEN TO -4 TO -6 ACROSS THE LOWER VALLEY.  VIS
SATELLITE PIX SHOW BREAKS W/SW OF CRP AND THIS COULD LEAD TO
ADDITIONAL HEATING TO HELP DESTABILIZE THINGS FURTHER.

WILL CONTINUE WIND ADVSRY UNTIL 9 PM FOR CRP/VCT.  LRD CAN BE
DROPPED.  NEED TO MAINTAIN SCA ON THIS PKG.  ALL NECESSARY PRODUCTS
HAVE BEEN UPDATED.

.TONIGHT...CLOUDY WITH AN 60 PERCENT CHANCE OF THUNDERSTORMS
CRP...80% VCT...SOME LIKELY SEVERE.  SE WINDS 20 TO 30 MPH AND GUSTY
CRP...E WIND 20 TO 30 MPH AND GUSTY VCT.

//LRD// 40% CHC OF THUNDERSTORMS THIS EVENING THEN DECREASING
CLOUDINESS LATE.  S WIND 10 TO 15 MPH...SHIFTING TO THE W/NW AT 10 TO
15 MPH BY MIDNIGHT.

.SUNDAY...BECOMING MOSTLY SUNNY AND BREEZY.  W/NW WINDS 15 TO 20 MPH
AND GUSTY.

.SUNDAY NIGHT...CLEAR.

.MONDAY...SUNNY.

CRP UU  052/073  048/077  054  6100
NGP     058/073  052/075  058
ALI UU  050/073  048/078  054  6100
LRD UU  052/075  052/079  055  4100
VCT UU  047/071  048/074  053  8100

MSL..73..

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 6:50 PM CSTFlash Flood WarningCRPBee3 hr
Feb 21, 7:02 PM CSTSevere Thunderstorm WarningCRPLive Oak58 min
Feb 21, 7:22 PM CSTSevere Thunderstorm WarningCRPDuval68 min
Feb 21, 7:26 PM CSTSevere Thunderstorm WarningCRPLa Salle64 min
Feb 21, 7:33 PM CSTSevere Thunderstorm WarningCRPBee57 min
Feb 21, 7:40 PM CSTSevere Thunderstorm WarningCRPGoliad65 min
Feb 21, 8:31 PM CSTSevere Thunderstorm WarningCRPVictoria59 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.