Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 12, NWS Corpus Christi, TX

April 16, 2002Live Oak County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 16, 2002, 7:29 PM CDT for Live Oak County, Texas. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 16, 2002, 7:29 PM CDT (00:29 UTC)
Expired
Apr 16, 2002, 8:15 PM CDT
In force
46 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Live Oak County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.5 hours before the alert went out and 135 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 2002-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1707 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 2002-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.193958Sfc1 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
1707 J/kg
Mixed-layer CIN
-137 J/kg
Mixed-layer LCL
1072 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.3
Supercell composite
5.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KCRP 170029
SVRCRP
TXC297-170115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
729 PM CDT TUE APR 16 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL LIVE OAK COUNTY IN TEXAS

* UNTIL 815 PM CDT

* AT 723 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NELL...OR ABOUT 15 MILES NORTH OF THREE
  RIVERS...MOVING EAST AT 20 MPH.

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...HAIL UP TO THE    
  SIZE OF DIMES...
  WINDS UP TO 60 MILES AN HOUR...
  VERY FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING...

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL.


LAT...LON 2879 9822 2861 9826 2859 9808 2875 9806

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 Apr 16, 5:23 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Apr 16, 5:23 PM CDT, 2 hours 6 minutes before
COASTAL BEND FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
523 PM CDT TUE APR 16 2002

CURRENT DISCUSSION...
FOR THIS EVENING/EARLY TONIGHT...MSTR CONVERGENCE/CAPE MAY
CONTRIBUTE TO CONVECTION OVER MAINLY THE CNTRL CWFA. WILL ADD LOW
POPS TO THE CNTRL/WESTERN CWFA. WILL ADD WIND GUSTS TO THE ERN
CWFA.

87

PREVIOUS DISCUSSION...
SYNOPTIC...THERMAL GRADIENT OVER THE SIERRA MADRE HAS ALLOWED THE
WINDS TO GET A LITTLE HIGHER THAN EXPECTED THIS AFTERNOON.  WITH THE
RIDGE SETTING UP SHOP OVER THE GULF FOR WHAT LOOKS LIKE THE NEXT
WEEK...WILL EXPECT LITTLE CHANGE IN CONDITIONS THRU THE FCST
PERIOD.  A PIECE OF ENERGY MOVING THRU THE SUBTROPICAL JET WILL
BRING A CHANCE OF PRECIP TO THE WESTERN ZONES ON THURSDAY
NIGHT...BELIEVE BEST CHANCES WILL BE NORTH OF CWA...WILL MENTION
SLIGHT CHANCE FOR LRD AND COT.

MARINE...LITTLE CHANGE IS EXPECTED OVER THE NEXT COUPLE OF DAYS.
PRESSURE GRADIENT WILL REMAIN AS TIGHT LOW PRESSURE CONTINUES TO
REDEVELOP TO THE NORTH AND WEST WHILE HIGH PRESSURE REMAINS ANCHORED
TO THE EAST.  DUE TO THERMAL CONTRASTS...WINDS WILL BE STRONGER OVER
THE BAYS DURING THE DAY AND OFFSHORE AT NIGHT.  WINDS WILL REMAIN AT
SCEC/LOW END SCA CONDITIONS THROUGH THE PERIOD WITH NO RAINFALL
EXPECTED.

DKJ.91 / CW.78

.CRP...SCA GMZ230-235.

CRP NB 072/090 070/091 069 91000
VCT EB 070/087 068/088 067 91000
LRD BB 073/094 071/096 068 91000

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:54 PM CDTSevere Thunderstorm WarningCRPBee36 min
Apr 16, 8:35 PM CDTSevere Thunderstorm WarningCRPBee40 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

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.