Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 7, NWS Corpus Christi, TX

February 24, 2004Jim Wells County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Feb 24, 2004, 10:06 AM CST for Jim Wells County, Texas. It was in force for 39 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
Feb 24, 2004, 10:06 AM CST (16:06 UTC)
Expired
Feb 24, 2004, 10:45 AM CST
In force
39 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Jim Wells 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 12:00Z, 4.1 hours before the alert went out and 79 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 2004-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 580 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 2004-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
580 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

685 
WUUS54 KCRP 241606
SVRCRP
TXC249-241645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1005 AM CST TUE FEB 24 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL JIM WELLS COUNTY IN TEXAS

* UNTIL 1045 AM CST

* AT 1005 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  A SEVERE THUNDERSTORM 20 MILES WEST OF ALICE...OR ABOUT 6 MILES    
  NORTH OF BENAVIDES...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES SOUTH OF ALICE AROUND 1025 AM CST...

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...  
  GOLF BALL TO BASE BALL SIZED HAIL...
  DESTRUCTIVE WINDS UP TO 70 MILES AN HOUR...

SEEK A STURDY SHELTER IMMEDIATELY


LAT...LON 2791 9824 2743 9824 2740 9809 2761 9804
          2790 9798

$$

JM

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 24, 9:45 AM CST, 21 minutes earlier.

Area forecast discussion, Feb 24, 9:45 AM CST, 21 minutes before
SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
945 AM CST TUE FEB 24 2004

.DISCUSSION...VIGOROUS VORT MAX IN NRN MEXICO ALONG WITH IMPRESSIVE
UPR LVL DIFLUENCE AND MID LVL COOLING IS REALLY HELPING TO FIRE OFF
CONVECTION ACROSS SOUTH TX RIGHT NOW.  IDEAL WBZ VALUES AROUND 8000
FT WL MEAN HAIL WL BE THE GREATEST THREAT.  WL MENTION SEVERE ACROSS
THE ERN PORTIONS OF THE AREA FOR THIS MORNING AND INTO THE EARLY
AFTN.  EXPECT THE WESTERLY WIND SHIFT WHICH HAS ALREADY MOVED
THROUGH COTULLA AND LAREDO WL TEND TO END PCPN DURING THE AFTN.
MADE SOME ADJUSTMENTS TO THE WINDS AND LOWERED TEMPS A BIT GIVEN THE
CLOUD CVR AND PCPN.  NO SCA UNTIL TNT WHEN THE GRADIENT REALLY
INCREASES.

&&

.CRP...WATCHES/WARNINGS/ADVISORIES...NONE.

MB
Hazardous weather outlook, Feb 24, 6:00 AM CST, 4 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
600 AM CST TUE FEB 24 2004

GMZ230-235-250-255-270-275-TXZ229>234-239>247-251200-
ARANSAS-BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR-BEE-CALHOUN-
COASTAL WATERS BAFFIN BAY TO PORT ARANSAS OUT 20 NM-
COASTAL WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM-
DUVAL-GOLIAD-JIM WELLS-KLEBERG-LASALLE-LIVE OAK-MCMULLEN-NUECES-
REFUGIO-SAN PATRICIO-VICTORIA-
WATERS BAFFIN BAY TO PORT ARANSAS 20 TO 60 NM-
WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL 20 TO 60 NM-WEBB-
600 AM CST TUE FEB 24 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

A STRONG UPPER LEVEL DISTURBANCE WILL MOVE THROUGH TEXAS TODAY AND
BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO SOUTH TEXAS.  SOME OF
THE SHOWERS AND THUNDERSTORMS HAVE THE POTENTIAL TO BE SEVERE THIS
MORNING NORTH OF LAREDO TO PORT LAVACA LINE.  THE MAIN THREAT WILL
BE LARGE HAIL WITH LOCALIZED GUSTY WINDS ALSO POSSIBLE.  THE
STRONGER THUNDERSTORMS WILL MOVE OUT OF SOUTH TEXAS FROM WEST TO
EAST DURING THE EARLY AFTERNOON HOURS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG COLD FRONT WILL MOVE OFFSHORE LATE TONIGHT PROVIDING BREEZY
TO WINDY CONDITIONS ACROSS THE REGION WEDNESDAY. SMALL CRAFT
ADVISORY CONDITIONS ARE EXPECTED LATE TUESDAY NIGHT AND WEDNESDAY
WITH WINDS APPROACHING GALE FORCE OVER THE OFFSHORE WATERS.
OVERNIGHT LOWS MAY APPROACH FREEZING THURSDAY MORNING ACROSS
NORTHWESTERN SECTIONS FROM COTULLA TO TILDEN AS HIGH PRESSURE
SETTLES INTO THE REGION.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED TODAY.

TR/MJG

In the hours before

Special weather statement, Feb 24, 9:36 AM CST, 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
936 AM CST TUE FEB 24 2004

TXZ239-240-241630-
DUVAL-WEBB-
936 AM CST TUE FEB 24 2004

...SIGNIFICANT WEATHER ALERT FOR SMALL HAIL 40 TO 50 MPH WINDS FOR
DUVAL AND WEBB COUNTIES THROUGH 1030 AM CST...

AT 936 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG THE WEBB DUVAL COUNTY LINE MOVING
EAST AT 30 MPH.

PERSONS IN THE COMMUNITIES OF FREER AND BENAVIDES ARE IN THE PATH OF
THESE STORMS.

JM

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 11:12 PM CSTSevere Thunderstorm WarningCRPLa Salle48 min
Feb 23, 11:55 PM CSTFlash Flood WarningCRPLa Salle, Victoria233 days
Feb 24, 12:04 AM CSTSevere Thunderstorm WarningCRPLa Salle41 min
Feb 24, 12:48 AM CSTSevere Thunderstorm WarningCRPLa Salle57 min
Feb 24, 1:00 AM CSTSevere Thunderstorm WarningCRPWebb60 min
Feb 24, 9:41 AM CSTSevere Thunderstorm WarningCRPDuval64 min
Feb 24, 10:25 AM CSTSevere Thunderstorm WarningCRPRefugio50 min
Feb 24, 10:46 AM CSTSevere Thunderstorm WarningCRPJim Wells, Nueces, San Patricio59 min
Feb 24, 10:55 AM CSTSpecial Marine WarningCRP3 hr
Feb 24, 11:38 AM CSTSevere Thunderstorm WarningCRPNueces37 min
Feb 24, 12:43 PM CSTSpecial Marine WarningCRP2 hr
Feb 24, 3:53 PM CSTSevere Thunderstorm WarningCRPWebb52 min

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.