Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 28, NWS Corpus Christi, TX

April 4, 2004Webb County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 4, 2004, 8:28 PM CDT for Webb County, Texas. It was in force for 47 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, 8:28 PM CDT (01:28 UTC)
Expired: Apr 4, 2004, 9:15 PM CDT
In force: 47 min
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County Webb 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.

Issued	Product	Office	Lasted
Apr 4, 6:40 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.5 hours before the alert went out and 166 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 903 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 615 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

606 
WUUS54 KCRP 050128
SVRCRP
TXC479-050215-

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

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN WEBB COUNTY IN TEXAS

* UNTIL 915 PM CDT

* AT 819 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES SOUTHWEST OF MIRANDO CITY...OR ABOUT
  20 MILES WEST OF HEBBRONVILLE...MOVING EAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  9 MILES SOUTH OF BRUNI AROUND 915 PM CDT...

THIS SEVERE THUNDERSTORM IS 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 1100 PM CDT 
SUNDAY EVENING FOR SOUTH TEXAS.

LAT...LON 2736 9910 2746 9903 2750 9893 2755 9883
          2728 9881 2728 9909

$$

MJG

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 4, 7:24 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Apr 4, 7:24 PM CDT, 1 hour 4 minutes before

SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
724 PM CDT SUN APR 4 2004

UPDATED ZFP/GRIDS TO EXTEND THE SEVERE THUNDERSTORM WATCH UNTIL 04Z
MONDAY. LINE OF STRONG TO SEVERE THUNDERSTORMS OVER THE RIO GRANDE
PLAINS WILL CONTINUE TO SLOWLY ADVANCE TO THE COAST THE REMAINDER OF
THE EVENING. INSTABILITY PRECEDING THIS LINE WILL DECREASE SOME BUT
DYNAMICAL PARAMETERS REMAIN SUFFICIENTLY STRONG TO SUSTAIN
CONVECTION. INCREASED WIND SPEEDS TO BREEZY CATEGORY ACROSS ALL
INLAND ZONES AND LOW-END SCA CONDITIONS FOR THE COASTAL WATERS DUE
TO STRONG MESOSCALE INFLUENCES.

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
     SEVERE THUNDERSTORM WATCH UNTIL 04Z MONDAY TXZ230>234-239>247
     AND GMZ230-235.
     FLOOD WATCH IN EFFECT UNTIL 11Z MONDAY TXZ229>234-239>241.

&&

85

Hazardous weather outlook, Apr 4, 1:37 PM CDT, 6 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
137 PM CDT SUN APR 4 2004

GMZ230-235-250-255-270-275-TXZ229>234-239>247-051100-
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-
137 PM CDT SUN APR 4 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

A MOIST AND UNSTABLE AIRMASS COMBINED WITH AN UPPER LEVEL DISTURBANCE
LOCATED ACROSS THE DESERT SOUTHWEST WILL PRODUCE SCATTERED TO
NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT.
SOME OF THESE STORMS WILL BE SEVERE AT TIMES.  THE MAIN THREAT WILL
BE FROM LARGE HAIL UP TO THE SIZE OF QUARTERS AND STRONG WIND GUSTS
UP TO 60 MPH.  MOST OF THE SEVERE WEATHER IS EXPECTED TO LAST
BETWEEN THIS AFTERNOON AND AROUND 800 PM TONIGHT.  HEAVY RAINFALL
BETWEEN ONE AND THREE INCHES WITH ISOLATED AMOUNTS OF FIVE INCHES
WILL BE POSSIBLE.  A FLOOD WATCH WILL BE ISSUED THIS AFTERNOON THAT
WILL INCLUDE MOST OF SOUTH TEXAS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH TUESDAY
AHEAD OF AN UPPER LEVEL DISTURBANCE APPROACHING FROM THE WEST.
SOME OF THESE STORMS WILL BE SEVERE AT TIMES WITH HEAVY RAINFALL.
LARGE HAIL...DAMAGING WINDS AND RAINFALL AMOUNTS OF SEVERAL INCHES
WILL BE POSSIBLE.  THE MAIN THREAT FOR SEVERE WEATHER AND FLOODING
RAINS WILL OCCUR BETWEEN MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON.
DRIER CONDITIONS ARE EXPECTED BY TUESDAY EVENING AND WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION SHOULD OCCUR THIS AFTERNOON.  SPOTTER ACTIVATION
WILL LIKELY BE REQUIRED FOR MONDAY AND TUESDAY AS WELL.

MB

In the hours before

Local storm report, Apr 4, 6:50 PM CDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
650 PM CDT SUN APR 04 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0400 PM     HAIL             10 SW ALICE             27.65N 98.18W
04/04/2004  2.75 INCH        JIM WELLS          TX   PUBLIC

            PUBLIC REPORTED BASEBALL SIZED HAIL ONE FOOT DEEP
            COVERING ROAD ON CR 2295 5 MILES WEST OF HIGHWAY 281. 18
            WHEELER WAS NEEDED TO CLEAR HAIL FROM HIGHWAY.

0430 PM     FLASH FLOOD      5 SE ALICE              27.70N 98.01W
04/04/2004                   JIM WELLS          TX   LAW ENFORCEMENT

            SHERIFF REPORTED WATER OVER THE ROAD ON FM 1930 EAST OF
            HIGHWAY 281

0513 PM     HAIL             1 S ENCINAL             28.03N 99.35W
04/04/2004  1.75 INCH        WEBB               TX   TRAINED SPOTTER

            SPOTTER REPORTED GOLF BALL SIZED HAIL 1 MILE SOUTH OF
            ENCINAL NEAR THE WEBB-LA SALLE COUNTY LINE.

0530 PM     HAIL             5 ESE ENCINAL           28.01N 99.28W
04/04/2004  1.75 INCH        WEBB               TX   PUBLIC

            PUBLIC REPORTED GOLF BALL SIZED HAIL 5 MILES
            EAST-SOUTHEAST OF ENCINAL ON HIGHWAY 44 IN NORTHERN WEBB
            COUNTY.

0600 PM     HAIL             10 E HEBBRONVILLE       27.32N 98.52W
04/04/2004  2.75 INCH        DUVAL              TX   BROADCAST MEDIA

            BASEBALL SIZED HAIL REPORTED JUST NORTH OF HIGHWAY 285.

&&

MJ

Special weather statement, Apr 4, 6:53 PM CDT, 1 hour 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
653 PM CDT SUN APR 4 2004

TXZ230>234-239>247-050400-
ARANSAS-BEE-CALHOUN-DUVAL-GOLIAD-JIM WELLS-KLEBERG-LIVE OAK-MCMULLEN-
NUECES-REFUGIO-SAN PATRICIO-VICTORIA-WEBB-
653 PM CDT SUN APR 4 2004

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT...

THE NATIONAL WEATHER SERVICE HAS EXTENDED THE SEVERE THUNDERSTORM
WATCH UNTIL 1100 PM CDT SUNDAY EVENING. THE WATCH INCLUDES THE
COUNTIES OF ARANSAS...BEE...CALHOUN...DUVAL...GOLIAD...JIM WELLS...
KLEBERG...LIVE OAK...MCMULLEN...NUECES...REFUGIO...SAN PATRICIO...
VICTORIA AND WEBB. SOME CITIES INCLUDED IN THE WATCH ARE ALICE...
ARANSAS PASS...BEEVILLE...BENAVIDES...CORPUS CHRISTI...GEORGE WEST...
GOLIAD...INGLESIDE...KINGSVILLE...LAREDO...MATHIS...PORT ARANSAS...
PORT LAVACA...PORT OCONNOR...PORTLAND...REFUGIO...ROBSTOWN...
ROCKPORT...SEADRIFT...SINTON...SKIDMORE...THREE RIVERS...TILDEN AND
VICTORIA.

A NEARLY CONTINUOUS LINE OF STRONG TO SEVERE THUNDERSTORMS ACROSS THE
RIO GRANDE PLAINS EARLY THIS EVENING WILL ADVANCE INTO THE COASTAL
BEND AND VICTORIA CROSSROADS REGION LATER THIS EVENING. SOME OF THE
STORMS MAY CONTAIN LARGE HAIL OR DAMAGING WIND GUSTS IN EXCESS OF 60
MPH.

A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE
THUNDERSTORMS TO OCCUR IN OR NEAR THE WATCH AREA. SEVERE
THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL THE SIZE OF A DIME
OR LARGER...STRONG WINDS OF 58 MPH OR GREATER AND EVEN TORNADOES.

EMERGENCY MANAGERS AND SPOTTER GROUPS SHOULD BE PREPARED FOR POSSIBLE
ACTIVATION. RESIDENTS ACROSS SOUTH TEXAS SHOULD REMAIN ALERT AND BE
READY TO ACT QUICKLY IF THREATENING WEATHER APPROACHES YOUR AREA. IF
SEVERE WEATHER THREATENS YOUR AREA...THEN MOVE TO AN INTERIOR ROOM
AND LAY DOWN ON THE FLOOR. IF CAUGHT OUTSIDE...LAY FLAT DOWN ON THE
GROUND...PREFERABLY IN A DITCH OR OTHER LOW SPOT. NEVER TRY TO OUTRUN
SEVERE WEATHER.

STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR
POSSIBLE WARNINGS REGARDING THIS DEVELOPING WEATHER SITUATION.

FOR THE LATEST WEATHER FORECASTS AND WARNINGS...CHECK OUR WEB SITE AT
HTTP://WWW.SRH.NOAA.GOV/CRP

BB

Local storm report, Apr 4, 7:21 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
721 PM CDT SUN APR 04 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0640 PM     HAIL             12 N LAREDO             27.71N 99.49W
04/04/2004  0.88 INCH        WEBB               TX   LAW ENFORCEMENT

            NICKEL SIZED HAIL REPORTED BY SHERIFF OFFICE 12 MILES
            NORTH OF LAREDO ON INTERSTATE 35

0710 PM     FLASH FLOOD      LAREDO                  27.53N 99.49W
04/04/2004                   WEBB               TX   BROADCAST MEDIA

            NUMEROUS REPORTS OF STREET FLOODING IN THE CITY OF
            LAREDO. STRANDED VEHICLES WITH WATER UP TO BUMPER LEVEL.

&&

MJ

Local storm report, Apr 4, 7:50 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
750 PM CDT SUN APR 04 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0612 PM     HAIL             13 N LAREDO             27.72N 99.49W
04/04/2004  0.75 INCH        WEBB               TX   LAW ENFORCEMENT

            PENNY SIZED HAIL REPORTED BY SHERIFF OFFICE 13 MILES
            NORTH OF LAREDO ON I-35.

&&

MJ

Local storm report, Apr 4, 8:11 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
811 PM CDT SUN APR 04 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0645 PM     FLASH FLOOD      10 NE LAS TIENDAS       28.00N 99.51W
04/04/2004                   WEBB               TX   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORT FLOODING ALONG HIGHWAY 44 NEAR THE
            INTERSECTION OF HIGHWAY 83.

0800 PM     HAIL             AGUILARES               27.45N 99.10W
04/04/2004  0.25 INCH        WEBB               TX   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED QUARTER-SIZED HAIL AT AGUILARES.

&&

MJ

Local storm report, Apr 4, 8:11 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION TO HAIL SIZE
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
811 PM CDT SUN APR 04 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0645 PM     FLASH FLOOD      10 NE LAS TIENDAS       28.00N 99.51W
04/04/2004                   WEBB               TX   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORT FLOODING ALONG HIGHWAY 44 NEAR THE
            INTERSECTION OF HIGHWAY 83.

0800 PM     HAIL             AGUILARES               27.45N 99.10W
04/04/2004  1.00 INCH        WEBB               TX   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED QUARTER-SIZED HAIL AT AGUILARES.

&&

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:29 PM CDT	Severe Thunderstorm Warning	CRP	Webb	61 min
Apr 4, 8:46 PM CDT	Flash Flood Warning	CRP	Duval, Goliad	231 days
Apr 4, 10:11 PM CDT	Flash Flood Warning	CRP	Bee, Victoria	231 days
Apr 4, 10:25 PM CDT	Special Marine Warning	CRP		2 hr
Apr 4, 10:54 PM CDT	Flash Flood Warning	CRP	Kleberg, Victoria	231 days
Apr 5, 12:26 AM CDT	Special Marine Warning	CRP		2 hr
Apr 5, 2:47 AM CDT	Special Marine Warning	CRP		118 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004 Every 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.