Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 39, NWS Corpus Christi, TX

April 10, 2004Duval County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 10, 2004, 9:40 PM CDT for Duval County, Texas. It was in force for 35 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 10, 2004, 9:40 PM CDT (02:40 UTC)
Expired
Apr 10, 2004, 10:15 PM CDT
In force
35 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Duval 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 00:00Z, 2.7 hours before the alert went out and 117 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 2004-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2170 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 2004-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
2170 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

804 
WUUS54 KCRP 110240
SVRCRP
TXC131-110315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
940 PM CDT SAT APR 10 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

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

* UNTIL 1015 PM CDT

* AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 13 MILES SOUTHEAST OF REALITOS...OR ABOUT 14
  MILES EAST OF HEBBRONVILLE...MOVING SOUTHEAST AT 20 MPH.

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF NICKELS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL.


LAT...LON 2737 9853 2737 9861 2743 9861 2772 9824
          2727 9824 2728 9853

$$

GW

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 10, 3:51 PM CDT, 5 hours 49 minutes earlier.

Area forecast discussion, Apr 10, 3:51 PM CDT, 5 hours 49 minutes before
SOUTH TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
351 PM CDT SAT APR 10 2004

.UPDATED...ADDED SEVERE THUNDERSTORM WATCH 63 TO ALL ZONES EXCEPT
NUECES AND KLEBERG COUNTIES.

&&

.SHORT-TERM (TONIGHT THROUGH SUNDAY NIGHT)...SEVERE MCS LOCATED
ACROSS THE NRN PART OF THE EWX CWFA WL CONTINUE TO BECOME BETTER
ORGANIZED LATE THIS AFTN AND INTO THE FIRST PART OF TNT.  THIS MCS
IS EXPECTED TO PROPAGATE SEWD WITH TIME AS THE COLD FNT PUSHES SWD.
AN EXTREMELY UNSTABLE AIRMASS REMAINS IN PLACE ACROSS SOUTH TX WITH
CAPES OVER 4000 J/KG.  THE SHEAR PROFILE IS ONLY MARGINAL BUT WITH
SUCH HIGH CAPES THE SEVERE RISK WL REMAIN QUITE GOOD FOR SOUTH TX
LATE THIS AFTN INTO THE EVE HOURS.  A LARGE HAIL AND WIND EVENT
APPEARS LKLY.  TRAINING OF ECHOES ALONG AND BEHIND THE FNTL BNDRY WL
LEAD TO AN INCREASED FLOODING RISK.  GIVEN THE VERY HEAVY RAINS WE
HAVE RECEIVED OVER THE PAST WEEK...WL HOIST AN FFA FOR ALL ZONES
TNT.  OVERUNNING CONDITIONS AND THE APPROACH OF A DECENT S/WV WL
KEEP VERY HIGH POPS MOST OF THE DAY ON EASTER.  WE SHOULD HAVE A
BREAK BY LATE IN THE DAY AND SUNDAY NIGHT AS THIS FIRST S/WV PASSES
TO OUR EAST.  HOWEVER...ANOTHER S/WV WL FOLLOW ON ITS HEELS AND
BEGIN TO AFFECT WRN AREAS AFTER MIDNIGHT SUNDAY NIGHT.  WL THUS KEEP
CHC POPS FOR SUN NIGHT.  THE AIRMASS BEHIND THIS FNT IS QUITE CHILLY
FOR THIS TIME OF YEAR.  THE CURRENT THINKING IS THAT WITH EXCELLENT
CAA...THICK CLOUD CVR AND PCPN...TEMPS ON EASTER WL SLOWLY FALL
THROUGH THE DAY AND REMAIN MAINLY IN THE 50S.  TRENDED TWDS THE
COOLER GFS FOR SUNDAY NIGHTS LOWS.  WL HOIST AN SCA FOR ALL MARINE
ZONES FOR DEVELOPING N/NE WINDS BEHIND THE FNT.

&&

.LONG-TERM (MONDAY THROUGH SATURDAY)...ONGOING EXTENDED FORECAST
LOOKS PRETTY GOOD AND WILL CHANGE LITTLE WITH THIS PACKAGE.  ANOTHER
COOL DAY IS EXPECTED MONDAY...AS CLOUDS WILL LINGER.  WILL ALSO HOLD
ON TO LOW POPS FOR LIGHT RAIN AS FINAL SHORTWAVE MAY SQUEEZE OUT A
FEW SPRINKLES ON MONDAY MORNING.  WILL UNDERCUT MOS FOR MAX TEMPS
DUE TO EXPECTED THICK CLOUDCOVER.  CLEARING LATE MONDAY WILL PROMOTE
RADIATIONAL COOLING TUE MORNING AND WILL STAY CLOSE TO THE MAV FOR
LOWS.  TUE-WED LOOKS VERY NICE AS HIGH SLOWLY TRANSLATES THROUGH THE
REGION.  RETURN FLOW BY WED NIGHT MAY PROMOTE CLOUDS/FOG BY
THURS...BUT EXPECT THE CLOUDS TO REALLY BE BACK FRI-SAT AS STRONG
ONSHORE FLOW SETS UP AHEAD OF NEXT UPPER LEVEL SYSTEM.  THIS SYSTEM
WILL LIKELY REMAIN TOO FAR NORTH OF THE AREA FOR CONVECTION...AND
BELIEVE THAT CAPPING INVERSION WILL DEVELOP AND LIMIT S TX TO ONLY
ISOLATED STREAMER SHOWERS.  TOO FAR OUT TO MENTION THIS NOW...BUT
HAVE INCLUDED TRANSPARENT LOW POPS OF 10 PERCENT IN THE GRIDS.

MARINE....SCA CONDITIONS WILL IMPROVE MONDAY NIGHT AND TUESDAY
MORNING WITH LIGHT WINDS TUE AND WED.  ONSHORE FLOW EXPECTED TO
BRING BACK SCEC/SCA CONDITIONS THU.

&&

.PRELIMINARY POINT TEMPS/POPS...
CORPUS CHRISTI 59 63 48 67 45 / 70 70 30 20 00
VICTORIA       56 59 45 64 41 / 70 70 30 20 05
LAREDO         58 61 43 67 47 / 70 60 30 20 00

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY FOR ALL MARINE ZONES TONIGHT.
FLOOD WATCH FOR ALL LAND ZONES TONIGHT.
SEVERE THUNDERSTORM WATCH #63 IN EFFECT THROUGH 800 PM CDT TNT.

&&

MB/80...SHORT-TERM
TR/92...LONG-TERM
Hazardous weather outlook, Apr 10, 6:45 AM CDT, 14 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
645 AM CDT SUN APR 10 2004

GMZ230-235-TXZ229>234-239>247-121000-
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR-
ARANSAS-BEE-CALHOUN-DUVAL-GOLIAD-JIM WELLS-KLEBERG-LA SALLE-LIVE OAK-
MCMULLEN-NUECES-REFUGIO-SAN PATRICIO-VICTORIA-WEBB-
645 AM CDT SAT APR 10 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

BRISK OFFSHORE FLOW IN THE WAKE OF YESTERDAYS COLD FRONT WILL
PRODUCE HAZARDOUS BOATING CONDITIONS AND SMALL CRAFT ADVISORIES
REMAIN IN EFFECT. WINDS WILL BEGIN TO SUBSIDE SOMEWHAT IN THE BAYS
LATE THIS AFTERNOON...HOWEVER WINDS WILL REMAIN 20 TO 25 KNOTS
OFFSHORE THROUGH TONIGHT.

UPPER LEVEL DISTURBANCES WILL INTERACT WITH LINGERING MOISTURE
BEHIND THE COLD FRONT TO PRODUCE SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS TODAY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS
CONTINUING THROUGH TONIGHT. THE MAIN THREAT FROM THUNDERSTORMS TODAY
WILL BE LOCALLY HEAVY RAINFALL AS SOME STORMS TRAIN OVER THE SAME
AREAS. ISOLATED RAINFALL TOTALS OF 1 TO 2 INCHES WILL BE POSSIBLE...
ESPECIALLY ACROSS AREAS FROM VICTORIA TO COTULLA. BECAUSE THE HEAVY
RAINFALL THREAT APPEARS TO BE RATHER LOCALIZED...FLASH FLOOD WATCHES
HAVE BEEN ALLOWED TO EXPIRE. THE THREAT FOR SEVERE THUNDERSTORMS
REMAINS VERY SLIM TODAY...HOWEVER A FEW STORMS MAY BECOME STRONG
ENOUGH TO PRODUCE FREQUENT LIGHTNING AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

AREAS OF RAIN WILL AFFECT SOUTH TEXAS MONDAY MORNING AS THE LAST IN
A SERIES OF UPPER LEVEL DISTURBANCES CROSSES THE REGION. SMALL CRAFT
ADVISORY CONDITIONS ARE EXPECTED MONDAY AND MONDAY NIGHT FOR THE
COASTAL WATERS AS BUILDING HIGH PRESSURE MAINTAINS AN OFFSHORE FLOW.
SMALL CRAFT ADVISORY CONDITIONS ARE ANTICIPATED AGAIN ON FRIDAY AND
SATURDAY AS LOW PRESSURE DEEPENS ACROSS THE SOUTHERN PLAINS STATES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

MJG

In the hours before

Special weather statement, Apr 10, 4:38 PM CDT, 5 hours 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
438 PM CDT SAT APR 10 2004

TXZ229>234-239>241-244>247-110100-
ARANSAS-BEE-CALHOUN-DUVAL-GOLIAD-JIM WELLS-LA SALLE-LIVE OAK-
MCMULLEN-REFUGIO-SAN PATRICIO-VICTORIA-WEBB-
438 PM CDT SAT APR 10 2004

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
VALID UNTIL 800 PM CDT SATURDAY EVENING. THE WATCH INCLUDES THE
COUNTIES OF ARANSAS...BEE...CALHOUN...DUVAL...GOLIAD...JIM WELLS...LA
SALLE...LIVE OAK...MCMULLEN...REFUGIO...SAN PATRICIO...VICTORIA AND
WEBB. SOME CITIES INCLUDED IN THE WATCH ARE ALICE...ARANSAS PASS...
BEEVILLE...BENAVIDES...COTULLA...ENCINAL...GEORGE WEST...GOLIAD...
INGLESIDE...LAREDO...MATHIS...PORT LAVACA...PORT OCONNOR...
PORTLAND...REFUGIO...ROCKPORT...SEADRIFT...SINTON...SKIDMORE...THREE
RIVERS...TILDEN AND VICTORIA.

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.
Special weather statement, Apr 10, 7:17 PM CDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
717 PM CDT SAT APR 10 2004

TXZ231-232-241-244-246-110045-
BEE-JIM WELLS-LIVE OAK-REFUGIO-SAN PATRICIO-
717 PM CDT SAT APR 10 2004

...A LINE OF STRONG THUNDERSTORMS WILL CONTINUE ACROSS BEE...JIM
WELLS...LIVE OAK...REFUGIO AND SAN PATRICIO COUNTIES THROUGH 745 PM
CDT...

AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS FROM 15 MILES NORTHWEST OF REFUGIO TO 16 MILES
NORTHWEST OF MATHIS. THIS LINE OF STRONG THUNDERSTORMS WILL AFFECT
DINERO...SKIDMORE...LAKE CORPUS
CHRISTI...LAKESIDE...LAGARTO...REFUGIO...MATHIS...TYNAN...PERNITAS
POINT AND WOODSBORO.

THIS LINE OF THUNDERSTORMS HAS HAD A HISTORY OF PRODUCING WINDS
GUSTING TO 40 TO 50 MPH.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION
OR POSSIBLE WARNINGS.

TR
Special weather statement, Apr 10, 8:00 PM CDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
800 PM CDT SAT APR 10 2004

TXZ232-241>246-110145-
ARANSAS-BEE-JIM WELLS-KLEBERG-NUECES-REFUGIO-SAN PATRICIO-
800 PM CDT SAT APR 10 2004

...A COLD FRONT AND ASSOCIATED LINE OF THUNDERSTORMS WILL CONTINUE
TO MOVE SOUTH ACROSS ARANSAS...BEE...JIM WELLS...KLEBERG...NUECES...
REFUGIO AND SAN PATRICIO COUNTIES THROUGH 845 PM CDT...

AT 800 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS LOCATED ALONG AND BEHIND A COLD FRONT WHICH
WAS SITUATED ALONG A REFUGIO TO ALICE LINE MOVING SOUTH AT 30 MPH.

STRONG WINDS GUSTING TO 40 MPH ASSOCIATED WITH THIS LINE OF SHOWERS
AND THUNDERSTORMS WILL AFFECT SAN PATRICIO...WOODSBORO...
SINTON...ALICE...ODEM...EDROY...ALICE AND CORPUS CHRISTI THROUGH 900
PM.

TR
Local storm report, Apr 10, 8:15 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
815 PM CDT SAT APR 10 2004

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

0800 PM     TSTM WND DMG     SKIDMORE                28.23N 97.68W
04/10/2004                   BEE                TX   LAW ENFORCEMENT

            TREE DOWN AND BLOCKING ONE LANE OF HIGHWAY 181 SOUTH IN
            SKIDMORE

&&

SMART
Local storm report, Apr 10, 8:51 PM CDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
851 PM CDT SAT APR 10 2004

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

0850 PM     HAIL             MIRANDO CITY            27.43N 98.93W
04/10/2004  1.00 INCH        WEBB               TX   LAW ENFORCEMENT

&&

SMART

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 7:07 PM CDTFlash Flood WarningCRPBee113 min
Apr 10, 7:11 PM CDTSevere Thunderstorm WarningCRPBee49 min
Apr 10, 7:46 PM CDTSpecial Marine WarningCRP3 hr
Apr 10, 7:46 PM CDTSpecial Marine WarningCRP3 hr
Apr 10, 7:57 PM CDTFlash Flood WarningCRPGoliad2 hr
Apr 10, 8:09 PM CDTSevere Thunderstorm WarningCRPMcMullen36 min
Apr 10, 8:16 PM CDTSevere Thunderstorm WarningCRPRefugio, Victoria59 min
Apr 10, 8:30 PM CDTSevere Thunderstorm WarningCRPWebb45 min
Apr 10, 10:19 PM CDTSevere Thunderstorm WarningCRPWebb56 min
Apr 10, 10:24 PM CDTSpecial Marine WarningCRP2 hr
Apr 10, 10:24 PM CDTSpecial Marine WarningCRP2 hr
Apr 11, 12:17 AM CDTSpecial Marine WarningCRP88 min
Apr 11, 2:52 AM CDTSevere Thunderstorm WarningCRPLive Oak38 min
Apr 11, 7:19 AM CDTSpecial Marine WarningCRP86 min
Apr 11, 11:51 AM CDTSevere Thunderstorm WarningCRPCalhoun24 min
Apr 11, 11:52 AM CDTSevere Thunderstorm WarningCRPCalhoun23 min
Apr 11, 12:23 PM CDTSevere Thunderstorm WarningCRPCalhoun52 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.