Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 15, NWS Corpus Christi, TX

April 2, 2004Webb County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 2, 2004, 7:32 PM CST for Webb County, Texas. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 2, 2004, 7:32 PM CST (01:32 UTC)
Expired
Apr 2, 2004, 8:15 PM CST
In force
43 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Webb County, TX

The radar

The Corpus Christi radar (KCRP), 179 km from the middle of the area, began a volume at 01:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 2, 2:25 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.5 hours before the alert went out and 196 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 2004-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 927 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 2004-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -152 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
927 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
762 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-152 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
-0.7
Supercell composite
-7.0

Open this sounding in Storm Lab

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 2, 4:15 PM CST, 3 hours 17 minutes earlier.

Area forecast discussion, Apr 2, 4:15 PM CST, 3 hours 17 minutes before
SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
415 PM CST FRI APR 2 2004

.SHORT-TERM (TODAY THROUGH SATURDAY)...APOLOGIZE FOR THE DELAY IN
DISCUSSION DUE TO ONGOING WEATHER. WILL KEEP IT BRIEF. SHOWERS AND
THUNDERSTORMS ACROSS COASTAL BEND SHOWING SIGNS OF WEAKENING. STORMS
HAD TRAINED AND MERGED OVER SOUTHERN GOLIAD AND BEE COUNTIES...
DUMPING AN IMPRESSIVE 8 TO 10 INCHES ALONG THE COUNTY LINE. FOCUS
OVER THE NEXT FEW HOURS IS SHIFTING BACK TO THE WEST. SHOWERS AND
THUNDERSTORMS FIRING ACROSS THE RIO GRANDE PLAINS IN RESPONSE TO
SHORTWAVE LIFTING NE OUT OF MX AND INCREASING DIVERGENT PATTERN
ALOFT. SKIES OUT WEST CLEARED THIS AFTERNOON ALLOWING FOR SFC
HEATING AND DESTABILIZATION. SEE SPC SWODY1 AND SVR TSTM WATCH WHICH
HAS BEEN ISSUED TIL 8 PM. POPS WILL REMAIN LIKELY TO CATEGORICAL
THRU THE EVENING AS THIS NEXT ROUND ORGANIZES AND MOVES EAST. HAVE
HIGHLIGHTED SVR IN ZONES AND LOCALLY HEAVY RAINFALL.

&&

.LONG-TERM (SATURDAY NIGHT THROUGH THURSDAY)...A RATHER UNSETTLED WX
PATTERN IS EXPECTED FOR MUCH OF THE PD ACROSS SOUTH TX.  THE MAIN
CLOSED LOW IS EXPECTED TO SLOWLY MOVE EWD FROM THE DESERT SOUTHWEST
THROUGH TEXAS AND OKLAHOMA BETWEEN THE WEEKEND AND TUE.  THE NEXT
COLD FNT IS LKLY TO STALL ACROSS THE SRN PORTIONS OF THE CWFA ON SUN
AND MON.  INITIALLY THERE WL ONLY BE LOW POPS MENTIONED IN THE FCST
GIVEN SOME DRY AIR INTRUSION AND WK FOCUS FOR PCPN.  HOWEVER FORCING
WL REALLY BEGIN TO INCREASE LATE SUNDAY INTO MON AS THE CLOSED LOW
APPROACHES.  ISENTROPIC LIFT ALONG WITH EXCELLENT LOW LVL MOISTURE
CONVERGENCE AND PERSISTENT UPR LVL DIVERGENCE WL LEAD TO THE
DEVELOPMENT OF NUMEROUS SHRAS/TSRAS.  AS A RESULT...WL BUMP UP POPS
SIGNIFICANTLY FOR ALL AREAS FOR SUN AND MON.  THE CLOSED LOW IS
EXPECTED TO GRADUALLY WEAKEN BY WED AS IT GETS ABSORBED INTO THE
RDG AXIS OVER THE EAST.  HOWEVER...YET ANOTHER CLOSED LOW WL
APPROACH THE AREA BY FRI AND INCREASE RAIN CHCS ONCE AGAIN.  OVERALL
KEPT DAYTIME HIGHS AT OR BELOW NORMAL LVLS GIVEN THE ABUNDNANT CLOUD
CVR AND THE LOW LVL ELY FLOW.  LIKEWISE WENT WITH MILD OVERNIGHT
LOWS FOR THE SAME REASONING.  WL LKLY SEE SCA CONDITIONS DEVELOP ON
SUN AND MON.

&&

.PRELIMINARY POINT TEMPS/POPS...
CORPUS CHRISTI 64 82 63 78 67 / 80 20 10 30 60
VICTORIA       61 80 61 76 59 / 80 20 20 20 40
LAREDO         68 83 64 80 64 / 60 20 30 40 60

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
SVR TSTM WATCH TIL 8 PM FOR LA SALLE...WEBB...MCMULLEN AND DUVAL
COUNTIES.

&&

76...SHORT TERM
80...LONG TERM
Hazardous weather outlook, Apr 2, 4:30 PM CST, 3 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
430 PM CST FRI APR 2 2004

GMZ230-235-250-255-270-275-TXZ229>234-239>247-031200-
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-
430 PM CST FRI APR 2 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS ACROSS THE COASTAL BEND WILL BEGIN TO
WEAKEN OVER THE REMAINING AFTERNOON HOURS. HOWEVER...ADDITIONAL
SHOWERS AND THUNDERSTORMS WILL DEVELOP THROUGH THE REMAINING DAYTIME
HOURS ACROSS THE RIO GRANDE PLAINS AND PUSH EAST INTO THE COASTAL
BEND DURING THE EVENING. A SEVERE THUNDERSTORMS WATCH IS IN EFFECT
THROUGH 8 PM FOR LA SALLE...WEBB...MCMULLEN AND DUVAL COUNTIES. SOME
OF THESE STORMS MAY REACH SEVERE LIMITS PRODUCING HAIL PENNY SIZE OR
GREATER AND WIND GUSTS TO 58 MPH OR GREATER. IN ADDITION HEAVY
RAINFALL MAY FALL WITH THESE STORMS THIS EVENING OVER AREAS OF BEE
AND GOLIAD COUNTIES WHICH ALREADY RECEIVED WIDESPREAD HEAVY
RAINFALL...PRODUCING FLASH FLOODING. RESIDENTS SHOULD STAY TUNED FOR
THE LATEST INFORMATION ON THIS DEVELOPING WEATHER SITUATION TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

MOISTURE...DAYTIME HEATING AND LOW LEVEL FORCING WILL PROVIDE A
CHANCE FOR SHOWERS AND THUNDERSTORMS SATURDAY AND SATURDAY
NIGHT...MAINLY OVER THE SOUTHERN SECTIONS OF THE AREA.  THE CHANCES
FOR RAIN WILL CONTINUE THROUGH MONDAY...AS AN UPPER LEVEL
DISTURBANCE APPROACHES FROM THE WEST.  RAIN CHANCES WILL DIMINISH BY
TUESDAY NIGHT...AS THE UPPER LOW MOVES EAST AND SLIGHTLY DRIER AND
MORE STABLE AIR MOVE INTO THE REGION.  THUNDERSTORMS WHICH DEVELOP
ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS RECOMMENDED TODAY.

TR/GW/JR

In the hours before

Special weather statement, Apr 2, 1:54 PM CST, 5 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
154 PM CST FRI APR 2 2004

TXZ231>234-240>247-022115-
ARANSAS-BEE-CALHOUN-DUVAL-GOLIAD-JIM WELLS-KLEBERG-LIVE
OAK-NUECES-REFUGIO-SAN PATRICIO-VICTORIA-
154 PM CST FRI APR 2 2004

...STRONG THUNDERSTORMS CONTINUING TO DEVELOP ACROSS THE COASTAL
BEND...

AT 154 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS STRETCHING FROM BEE COUNTY AND LIVE OAK COUNTY
SOUTH TO JIM WELLS COUNTY. THESE STORMS WILL PUSH EAST OVER THE NEXT
FEW HOURS THROUGH THE COASTAL BEND AFFECTING THE COMMUNITIES OF
GOLIAD...BEEVILLE...GEORGE WEST...ALICE...KINGSVILLE...CORPUS
CHRISTI...SINTON...PORTLAND...ROCKPORT...REFUGIO AND PORT LAVACA.

THESE STRONG THUNDERSTORMS ARE CAPABLE OF PRODUCING SMALL HAIL...
WINDS GUSTING UP TO 40 MPH...FREQUENT DEADLY LIGHTNING AND VERY
HEAVY RAIN WITH RAINFALL RATES UP TO TWO INCHES AN HOUR. IN
ADDITION...SHORT-LIVED FUNNEL CLOUDS WILL BE POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.

76
Special weather statement, Apr 2, 2:25 PM CST, 5 hours 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 PM CST FRI APR 2 2004

TXZ229-230-239-240-030200-
DUVAL-LA SALLE-MCMULLEN-WEBB-
226 PM CST FRI APR 2 2004

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
VALID UNTIL 800 PM CST FRIDAY EVENING. THE WATCH INCLUDES THE
COUNTIES OF DUVAL...LA SALLE...MCMULLEN AND WEBB. SOME CITIES
INCLUDED IN THE WATCH ARE BENAVIDES...COTULLA...ENCINAL...LAREDO AND
TILDEN.

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.

76
Local storm report, Apr 2, 5:37 PM CST, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
537 PM CST FRI APR 02 2004

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

0355 PM     FLASH FLOOD      10 E BEEVILLE           28.41N 97.58W
04/02/2004                   BEE                TX   LAW ENFORCEMENT

            DOPPLER RADAR ESTIMATES AROUND 8 INCHES OF RAIN NEAR
            GOLIAD COUNTY LINE. SHERIFFS OFFICE REPORTED WATER OVER
            HIGHWAY 59 IN SEVERAL AREAS.

0330 PM     FLASH FLOOD      BEEVILLE                28.41N 97.75W
04/02/2004                   BEE                TX   LAW ENFORCEMENT

            SHERIFFS OFFICE REPORTED WATER OVER HIGHWAY 888.

0253 PM     FLASH FLOOD      BEEVILLE                28.41N 97.75W
04/02/2004                   BEE                TX   LAW ENFORCEMENT

            SHERIFFS OFFICE REPORTED WATER OVER HIGH 673.

0330 PM     FLASH FLOOD      BERCLAIR                28.50N 97.53W
04/02/2004                   GOLIAD             TX   LAW ENFORCEMENT

            DOPPLER RADAR ESTIMATED 8 TO 10 INCHES OF RAINFALL IN
            BERCLAIR. SHERIFFS OFFICE REPORTED HIGHWAY 59 CLOSED FROM
            330 PM THROUGH 500 PM.

0355 PM     FLASH FLOOD      TYNAN                   28.16N 97.73W
04/02/2004                   SAN PATRICIO       TX   LAW ENFORCEMENT

            SHERIFFS OFFICE REPORTED WATER OVER HIGHWAY 359 BETWEEN
            TYNAN AND SKIDMORE.

0325 PM     HAIL             5 W SKIDMORE            28.23N 97.77W
04/02/2004  1.75 INCH        BEE                TX   BROADCAST MEDIA

&&

MJG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 7:46 PM CSTFlash Flood WarningCRPBee, Victoria232 days
Apr 2, 7:53 PM CSTFlash Flood WarningCRPGoliad, Victoria232 days
Apr 2, 8:50 PM CSTFlash Flood WarningCRPSan Patricio, Victoria232 days
Apr 2, 9:04 PM CSTSpecial Marine WarningCRP116 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; radar from the NEXRAD Level II archive.