Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS Corpus Christi, TX

April 8, 2002Duval County, Jim Wells County, Live Oak County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 8, 2002, 2:38 AM CDT for Duval County, Jim Wells County, Live Oak County, Texas. It was in force for 52 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 8, 2002, 2:38 AM CDT (07:38 UTC)
Expired
Apr 8, 2002, 3:30 AM CDT
In force
52 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

Counties Duval County, TX, Jim Wells County, TX, 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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 8, 1:00 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 7.6 hours before the alert went out and 104 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 2002-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2444 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 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
2444 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
1.5
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KCRP 080738
SVRCRP
TXC131-249-297-080830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
235 AM CDT MON APR 8 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DUVAL COUNTY
  NORTHERN JIM WELLS COUNTY
  SOUTHWESTERN LIVE OAK COUNTY

* UNTIL 330 AM CDT

* AT 235 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM JUST NORTHEAST OF FREER...AND OTHER SEVERE STORM 
8 MILES WEST NORTHWEST OF ANNAROSE. THE STORMS WERE MOVING NORTHEAST 
AT 40 MPH.

THE SEVERE THUNDERSTORMS ARE CAPABLE OF PRODUCING...WINDS TO 60 MPH 
AND HAIL UP TOP NICKEL SIZE.


A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY
MORNING FOR PORTIONS OF TEXAS.

LAT...LON 2803 9845 2781 9874 2780 9804 2828 9808

PURPURA

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 7, 10:17 PM CDT, 4 hours 21 minutes earlier.

Area forecast discussion, Apr 7, 10:17 PM CDT, 4 hours 21 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1017 PM CDT SUN APR 7 2002

STRENGTHENING CAPPING INVERSION WILL BE PARTIALLY COUNTERACTED BY
STEEPENING MID-LEVEL LAPSE RATES/JET DYNAMICS IN AN ENVIRONMENT WITH
SUFFICIENT CAPE AND INCREASING LOW-LEVEL JET. CURRENT POP
CONFIGURATION AND SEVERE EMPHASIS FROM MCMULLEN TO VICTORIA COUNTIES
WILL BE RETAINED. WIND ADVISORY FOR SOUTHEASTERN COUNTIES THROUGH
5AM WILL ALSO BE KEPT GIVEN STRENGTHENING LOW-LEVEL JET/ISALLOBARIC
CONTRIBUTIONS. ONLY ADJUSTMENTS WILL BE TO SHIFT WINDS TO NORTHWEST
LATE ACROSS THE RIO GRANDE PLAINS AND LOWER TEMPERATURES SOME DUE TO
OUTFLOW CONSIDERATIONS. NO CHANGES TO THE MARINE.

.CRP...WIND ADVISORY TXZ242>244 UNTIL 10Z.
       SCA GMZ230-235-250-255-270-275.

85/BB/PUBLIC
78/CW/MARINE-AVIATION

In the hours before

Special weather statement, Apr 8, 12:45 AM CDT, 1 hour 53 minutes before
TXZ229>234-246-247-081000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1245 AM CDT MON APR 8 2002

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE NORTHERN COASTAL BEND
   UNTIL 500 AM CDT...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 500 AM CDT MONDAY
MORNING FOR THE COUNTIES OF LASALLE...MCMULLEN...LIVE OAK... BEE...
GOLIAD...VICTORIA...REFUGIO...AND CALHOUN.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS TO DEVELOP IN THE WATCH AREA. SEVERE
THUNDERSTORMS PRODUCE HAIL...WITH A DIAMETER OF A DIME OR LARGER...
STRAIGHT-LINE WINDS OF 58 MILES PER HOUR OR GREATER...OR A TORNADO.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...AND TELEVISION
FOR THE LATEST WEATHER INFORMATION.

WC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 2:41 AM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells, Live Oak49 min
Apr 8, 3:45 AM CDTSevere Thunderstorm WarningCRPBee, Live Oak60 min
Apr 8, 3:47 AM CDTSevere Thunderstorm WarningCRPBee, Live Oak58 min
Apr 8, 4:01 AM CDTSevere Thunderstorm WarningCRPGoliad59 min
Apr 8, 4:19 AM CDTSpecial Marine WarningCRP56 min
Apr 8, 4:25 AM CDTSevere Thunderstorm WarningCRPCalhoun, Victoria65 min
Apr 8, 5:33 AM CDTSevere Thunderstorm WarningCRPVictoria27 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.