Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Corpus Christi, TX

April 4, 2004La Salle County, Webb County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 4, 2004, 4:11 PM CDT for La Salle County, Webb County, Texas. It was in force for 64 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 4, 2004, 4:11 PM CDT (21:11 UTC)
Expired
Apr 4, 2004, 5:15 PM CDT
In force
64 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

Counties La Salle County, TX, Webb County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 4, 1:10 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.2 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 12:00Z on 2004-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1090 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 12:00Z on 2004-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
1090 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

180 
WUUS54 KCRP 042111
SVRCRP
TXC283-479-042215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
411 PM CDT SUN APR 4 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LA SALLE COUNTY IN TEXAS
  NORTH CENTRAL WEBB COUNTY IN TEXAS

* UNTIL 515 PM CDT

* AT 409 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 13 MILES NORTHWEST OF MILLET TO 5
  MILES WEST OF ENCINAL...OR FROM 17 MILES SOUTHWEST OF PEARSALL TO 5
  MILES WEST OF ENCINAL...MOVING NORTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  OVER WOODWARD AROUND 430 PM CDT...
  OVER ARTESIA WELLS AROUND 445 PM CDT...
  OVER MILLET...COTULLA AROUND 505 PM CDT...

THE SEVERE THUNDERSTORMS ARE CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF QUARTERS...
  WINDS UP TO 60 MILES AN HOUR...
  VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY
EVENING FOR SOUTH TEXAS.

LAT...LON 2864 9893 2838 9894 2812 9898 2796 9905
          2789 9956 2863 9940

$$

MJG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 1:23 PM CDTSevere Thunderstorm WarningCRPDuval52 min
Apr 4, 1:48 PM CDTFlash Flood WarningCRPDuval, Victoria231 days
Apr 4, 2:34 PM CDTSevere Thunderstorm WarningCRPWebb56 min
Apr 4, 2:42 PM CDTSevere Thunderstorm WarningCRPDuval63 min
Apr 4, 3:06 PM CDTTornado WarningCRPWebb24 min
Apr 4, 3:07 PM CDTSevere Thunderstorm WarningCRPJim Wells53 min
Apr 4, 3:51 PM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells54 min
Apr 4, 4:27 PM CDTFlash Flood WarningCRPGoliad, Jim Wells231 days
Apr 4, 4:43 PM CDTSevere Thunderstorm WarningCRPJim Wells62 min
Apr 4, 5:02 PM CDTFlash Flood WarningCRPGoliad, La Salle, Webb231 days
Apr 4, 5:18 PM CDTSevere Thunderstorm WarningCRPLa Salle57 min
Apr 4, 5:27 PM CDTSevere Thunderstorm WarningCRPWebb63 min
Apr 4, 5:40 PM CDTTornado WarningCRPWebb65 min
Apr 4, 5:53 PM CDTSevere Thunderstorm WarningCRPDuval52 min
Apr 4, 6:32 PM CDTSevere Thunderstorm WarningCRPWebb58 min
Apr 4, 6:37 PM CDTFlash Flood WarningCRPVictoria, Webb231 days

Nearby

Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004

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.