Alert archive / Texas / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 46, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 23, 2004, 11:38 PM CDT for La Salle County, Texas. It was in force for 67 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 23, 2004, 11:38 PM CDT (04:38 UTC)
- Expired
- Apr 24, 2004, 12:45 AM CDT
- In force
- 67 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Counties, with a storm outline in the text
County La Salle 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, 4.6 hours before the alert went out and 193 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.
- Mixed-layer CAPE
- 2567 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
730 WUUS54 KCRP 240438 SVRCRP TXC283-240545- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 1138 PM CDT FRI APR 23 2004 THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL LA SALLE COUNTY IN TEXAS * UNTIL 1245 AM CDT * AT 1134 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF ARTESIA WELLS...OR ABOUT 12 MILES NORTH OF ENCINAL...MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OVER ARTESIA WELLS AROUND 1145 PM CDT... THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING... HAIL UP TO THE SIZE OF PENNIES... WINDS UP TO 60 MILES AN HOUR... VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING... LAT...LON 2828 9944 2811 9940 2817 9887 2843 9894 $$ 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 23, 8:40 PM CDT, 2 hours 58 minutes earlier.
Area forecast discussion, Apr 23, 8:40 PM CDT, 2 hours 58 minutes before
SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 840 PM CDT FRI APR 23 2004 .UPDATE...00Z CRP SOUNDING BEGINNING TO SHOW SIGNS THAT CAP AT 800 MB MAY BE ERODING. FURTHER WEST...DRT SOUNDING IMPRESSIVE SHOWING STEEP MID LEVEL LAPSE RATES AND CAP ERODED AS A RESULT OF INCREASING SYNOPTIC LIFT AHEAD OF SHORTWAVE AND BACKING LOW LEVEL WINDS. RUC POINT SOUNDINGS SUPPORT CONTINUED ERODING OF CAP ACROSS CRP CWA THROUGH THE EVENING AS SHORTWAVE MOVES CLOSER. THUNDERSTORMS HAVE FIRED ALONG THE LEE SIDE OF THE SIERRA MADRE LATE THIS AFTERNOON AND HAVE BEEN SLOW AT SHOWING SIGNS OF ORGANIZATION. HOWEVER...EXPECT CONVECTION MAY BEGIN TO ORGANIZE AS IT CONTINUES TO MOVE OFF SIERRA MADRE. INSTABILITY ACROSS THE RIO GRANDE PLAINS SHOULD SUSTAIN CONVECTION AS IT MOVES EAST TOWARDS THE RIO GRANDE...ALONG WITH APPROACHING SHORTWAVE PROVIDING INCREASING LIFT AND MID/UPR LVL DIFFLUENCE (NOTED BETWEEN BRO/DRT SOUNDINGS). SHOULD CONVECTION ORGANIZE...CORFIDI VECTORS IMPLY EAST-SOUTHEAST PROPAGATION ACROSS THE RIO GRANDE PLAINS. SPC HAS EXTENDED SLIGHT RISK OUTLOOK INTO CWA...WITH THREAT ALONG AND WEST OF LIVE OAK/JIM WELLS LINE. MAIN THREAT WOULD BE WINDS AND SMALL HAIL. WILL BE UPDATING HWO MOMENTARILY ALONG WITH ZFP TO INCLUDE MENTION OF POSSIBLE SEVERE OUT WEST. CURRENT LIKELY POPS LOOK GOOD...HIGHEST WEST. ACROSS THE ERN HALF OF CWA...EXPECT ISOL ELEVATED RWS AND TSTMS TO CONTINUE TO DEVELOP AND MOVE NORTHEAST DURING THE NEXT COUPLE OF HOURS. WOULD BE AFTER MIDNIGHT WHEN CONVECTION MOVED OUT OF RIO GRANDE PLAINS AND INTO COASTAL BEND. && .CRP WATCHES/WARNINGS/ADVISORIES...SCA GMZ270-275 && JR...SHORT-TERM
Hazardous weather outlook, Apr 23, 8:50 PM CDT, 2 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 850 PM CDT FRI APR 23 2004 GMZ230-235-250-255-270-275-TXZ229>234-239>247-241100- BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS- BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR- COASTAL WATERS BAFFIN BAY TO PORT ARANSAS OUT 20 NM- COASTAL WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS BAFFIN BAY TO PORT ARANSAS 20 TO 60 NM- WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL 20 TO 60 NM- ARANSAS-BEE-CALHOUN-DUVAL-GOLIAD-JIM WELLS-KLEBERG-LA SALLE-LIVE OAK- MCMULLEN-NUECES-REFUGIO-SAN PATRICIO-VICTORIA-WEBB- 850 PM CDT FRI APR 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS. .DAY ONE...TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ACROSS MEXICO ARE EXPECTED TO CONTINUE TO ORGANIZE BECOMING MORE NUMEROUS AS THEY MOVE EAST INTO THE RIO GRANDE PLAINS THROUGH MIDNIGHT. SOME OF THESE STORMS COULD BECOME SEVERE...PRODUCING DAMAGING WINDS AND HAIL WEST OF A LIVE OAK TO JIM WELLS COUNTY LINE. THESE SHOWERS AND THUNDERSTORMS WILL THEN MOVE EAST ACROSS SOUTH TEXAS INTO THE COASTAL BEND AND VICTORIA CROSSROADS AREAS AFTER MIDNIGHT. AT THIS TIME THE SEVERE THREAT ACROSS THE COASTAL BEND AND VICTORIA CROSSROADS APPEARS LOW...WITH MAINLY MODERATE TO LOCALLY HEAVY RAINFALL EXPECTED. LOCALIZED AMOUNTS OF AROUND 2 INCHES WILL ALSO BE POSSIBLE WITH SOME OF THESE STORMS ACROSS SOUTH TEXAS. RESIDENTS ARE URGED TO CONTINUE TO STAY INFORMED OF WEATHER FORECASTS THIS EVENING. .DAYS TWO THROUGH SEVEN...(SATURDAY THROUGH THURSDAY) SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS CAN BE EXPECTED THROUGH SATURDAY NIGHT AS ENERGY FROM AN UPPER LEVEL LOW COMBINES WITH ABUNDANT MOISTURE. THE MAIN THREAT FROM THESE SHOWERS AND STORMS WILL BE LOCALLY HEAVY RAINFALL...WITH ISOLATED RAINFALL AMOUNTS IN EXCESS OF 3 INCHES POSSIBLE. A FEW STRONG STORMS COULD ALSO DEVELOP...PRODUCING WIND GUSTS NEAR 50 MPH ALONG WITH SMALL HAIL...BUT AT THIS TIME NO SEVERE THUNDERSTORMS ARE EXPECTED. A COLD FRONT WILL MOVE SOUTH OF THE AREA SUNDAY NIGHT...BRINGING SLIGHTLY DRIER AIR AND ENDING THE CHANCES FOR RAIN. NO HAZARDOUS WEATHER IS EXPECTED MONDAY THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED ACROSS THE RIO GRANDE PLAINS. 91/86/TR/JR
In the hours before
Special weather statement, Apr 23, 9:22 PM CDT, 2 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 922 PM CDT FRI APR 23 2004 TXZ229-230-239-240-240500- DUVAL-LA SALLE-MCMULLEN-WEBB- 922 PM CDT FRI APR 23 2004 ...STRONG STORMS APPROACHING THE RIO GRANDE... STRONG STORMS CONTINUE TO ORGANIZE ACROSS NORTHERN MEXICO THIS EVENING. THESE STORMS WILL LIKELY ORGANIZE INTO A COMPLEX THROUGH MIDNIGHT...PUSHING EAST ACROSS THE RIO GRANDE INTO SOUTH TEXAS. THESE STORMS MAY PRODUCE HEAVY DOWNPOURS...FREQUENT LIGHTNING... GUSTY WINDS UP TO 50 MPH AND SMALL HAIL. A FEW OF THESE STORMS MAY BRIEFLY BECOME SEVERE. RESIDENTS ARE URGED TO STAY TUNED OF THIS DEVELOPING SITUATION THROUGH THE REMAINDER OF THE EVENING. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION INCLUDING FORECASTS AND WARNINGS...OR CHECK OUR WEB SITE AT HTTP://WWW.SRH.NOAA.GOV/CRP JR
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 9:57 PM CDT | Flash Flood Warning | CRP | Webb | 3 hr |
| Apr 23, 10:16 PM CDT | Severe Thunderstorm Warning | CRP | Webb | 59 min |
| Apr 24, 12:06 AM CDT | Flash Flood Warning | CRP | La Salle | 3 hr |
| Apr 24, 12:53 AM CDT | Severe Thunderstorm Warning | CRP | McMullen | 52 min |
| Apr 24, 1:18 AM CDT | Severe Thunderstorm Warning | CRP | Live Oak | 42 min |
| Apr 24, 3:47 AM CDT | Special Marine Warning | CRP | 118 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.