Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 1, NWS Corpus Christi, TX

February 23, 2004La Salle County, Victoria County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Feb 23, 2004, 11:55 PM CST for La Salle County, Victoria County, Texas. It was in force for 233 days. 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 23, 2004, 11:55 PM CST (05:55 UTC)
Expired
Oct 14, 2004, 6:15 AM CDT
In force
233 days
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

Counties La Salle County, TX, Victoria County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood 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

Del Rio, TX (KDRT), launched 00:00Z, 5.9 hours before the alert went out and 184 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, Del Rio, TX at 00:00Z on 2004-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Del Rio, TX at 00:00Z on 2004-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -38 square meters per square second.1939587897Sfc1 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
13 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
2492 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-38 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KCRP 240559
FFWCRP
TXC283-240730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1155 PM CST MON FEB 23 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN LA SALLE COUNTY IN TEXAS

* UNTIL 130 AM CST

* AT 1151 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
VERY HEAVY RAIN ACROSS NORTHWESTERN LA SALLE COUNTY. ADDITIONAL 
THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH OUT OF DIMMIT COUNTY 
INTO LA SALLE COUNTY OVER AREAS WHICH HAVE ALREADY RECEIVED 2 TO 4 
INCHES OF RAINFALL. AN ADDITIONAL 1 TO 3 INCHES WILL BE POSSIBLE 
WITH THESE STORMS.

* SOME LOCATIONS AFFECTED INCLUDE...
  COTULLA...
  MILLET...
  WOODWARD...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

LAT...LON 2862 9938 2825 9938 2842 9899 2864 9900

$$

JR
1 follow-up statement
000 
WGUS54 KCRP 140829
FFWCRP
TXC469-141115-
/X.NEW.KCRP.FF.W.0001.041014T0822Z-041014T1115Z/
/0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
322 AM CDT THU OCT 14 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VICTORIA COUNTY IN TEXAS

* UNTIL 615 AM CDT

* AT 321 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINFALL 
APPROACHING VICTORIA COUNTY AHEAD OF A STRONG COLD FRONT.

* TRAINING OF THESE THUNDERSTORMS IS EXPECTED TO PRODUCE ADDITIONAL  
RAINFALL OVER AREAS WHICH HAVE ALREADY RECEIVED HEAVY RAINFALL 
EARLIER THIS EVENING. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE 
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING   
INCLUDE...VICTORIA...BLOOMINGTON...INEZ...MCFADDIN...MISSION   
VALLEY...NURSERY...PLACEDO AND TELFERNER.

DOPPLER RADAR HAS ESTIMATED 1 TO 2 INCHES HAS ALREADY FALLEN 
OVER MUCH OF VICTORIA COUNTY...WITH ISOLATED POCKETS OF 2 TO 4 
INCHES. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES IS POSSIBLE 
ACROSS THE WARNED AREA WITH THIS LINE OF SHOWERS AND THUNDERSTORMS 
ALONG THE COLD FRONT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN CORPUS
CHRISTI.

LAT...LON 2888 9723 2885 9730 2910 9698 2903 9684
      2872 9665 2867 9671 2861 9690 2857 9693
      2855 9691 2849 9692 2854 9706 2854 9715
      2860 9717 2879 9716

$$

JR

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Feb 23, 9:30 PM CST, 2 hours 25 minutes earlier.

Area forecast discussion, Feb 23, 9:30 PM CST, 2 hours 25 minutes before
SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
930 PM CST MON FEB 23 2004

.UPDATE...NEGATIVELY TILTED TROF MOVING EWD THRU SW U.S. AND NRN MX
THIS EVENING AS VORT MAX DROPS THRU BASE OF TROF. SHOWERS AND
THUNDERSTORMS HAVE DEVELOPED ACROSS COAHUILA AND NOW MOVING ACROSS
RIO GRANDE. WILL WAIT AND SEE IF CONVECTION BEGIN WEAKENING AS IT
CROSSES OUT OF RIO GRANDE PLAINS AND INTO COASTAL BEND...MOVING INTO
A SFC LAYER THAT WILL BECOMING INCREASINGLY MORE STABLE AND WRLY
850-700MB FLOW ABOVE THAT. ALSO WILL BE MOVING AWAY FROM LARGE SCALE
ASCENT THAT WILL BE LAGGING SOMEWHAT TO WEST. LARGE SCALE ASCENT
WILL APPROACH WESTERN COUNTIES AROUND 09Z AND MOVE INTO COASTAL BEND
COUNTIES CLOSER TO SUNRISE. THIS INCREASING LARGE SCALE ASCENT IN
THE FORM 700-300MB Q-V CONV AND INCREASINGLY DIFFLUENT FLOW ALOFT AS
WELL AS STEEPENING LAPSE RATES SHOULD LEAD TO ADDITIONAL DEVELOPMENT
OF SHOWERS AND THUNDERSTORMS CLOSER TO SUNRISE AND CONTINUING
INTO THE MORNING HOURS ACROSS THE EAST. SPC CONTINUES TO HIGHLIGHT
NRN COUNTIES IN SLIGHT RISK AREA AND WILL LEAVE THAT MENTION IN
ZONES. WILL DO SOME REWORDING OF ZONES TO BETTER HANDLE THE TIMING
OF PRECIP. OTHER CONCERN IS THE FOG POTENTIAL ESP ACROSS THE EAST.
TEMP/DEW POINT GAP NARROWING ACROSS COASTAL BEND WITH SOME LOCATIONS
ALONG THE COAST AND NORTHERN COASTAL BEND REPORTING 5-6 MILE
VISIBILITIES. TRICKY SITUATION AS FAR AS HOW DENSE FOG MAY GET AS
HIGH MID/HIGH CLOUDS FROM WEST START TO SPREAD OVER THE AREA. YET
LOW CLOUDS AND FOG SEEN ON 11-3.9U SAT IMAGERY SPREADING SOUTHWEST
FROM HGX CWA...NOW INTO MATAGORDA COUNTY. NOT REALLY MUCH IN THE WAY
OF SEA FOG SEEN FURTHER SOUTH NEAR SOUTHERN COASTAL BEND AS DEW
POINTS A LITTLE LOWER TONIGHT AND NEARSHORE TEMPS SLIGHTLY WARMER.
AT THIS TIME WILL NOT BE ISSUING ANY TYPE OF DENSE FOG ADVISORY AND
WILL CONTINUE TO MONITOR THROUGH THE NEXT SEVERAL HOURS. BUT MAY BE
SOME LOCALIZED DENSE AREA PARTICULARLY NORTHEASTERN CWA LATER
TONIGHT.

&&

.CRP...WATCHES/WARNINGS/ADVISORIES...
     ...FIRE WEATHER WATCH WEBB-LASALLE-MCMULLEN-DUVAL

76...SHORT-TERM
Hazardous weather outlook, Feb 23, 11:45 AM CST, 12 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1145 AM CST MON FEB 23 2004

GMZ230-235-250-255-270-275-TXZ229>234-239>247-241200-
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-
1145 AM CST MON FEB 23 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT
A STRONG UPPER LEVEL DISTURBANCE WILL MOVE THROUGH SOUTH TEXAS LATE
TONIGHT AND BRING A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS OVER
THE AREA.  SOME OF THE THUNDERSTORMS NORTH OF A LAREDO TO PORT
LAVACA LINE HAVE THE POTENTIAL TO BE SEVERE WITH HAIL AND STRONG
WINDS.  STAY TUNED TO FUTURE STATEMENTS REGARDING THIS DEVELOPING
WEATHER SITUATION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS WILL BE EXITING SOUTH TEXAS ON TUESDAY MORNING.
OTHERWISE...A STRONG COLD FRONT WILL MOVE OFFSHORE LATE TUESDAY
NIGHT PROVIDING 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
MAINLY BEYOND 20 NM OFFSHORE. 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 TONIGHT.

TR/MJG/JD

In the hours before

Special weather statement, Feb 23, 10:18 PM CST, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1018 PM CST MON FEB 23 2004

TXZ239-240515-
WEBB-
1018 PM CST MON FEB 23 2004

...A STRONG THUNDERSTORM WILL CONTINUE ACROSS WEBB COUNTY THROUGH
1115 PM CST...

AT 1018 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR EL CENIZO...OR ABOUT 20 MILES SOUTH OF
LAREDO.  THE STORM WAS MOVING EAST AT 25 MPH.

THIS STRONG THUNDERSTORM COULD PRODUCE SMALL HAIL...WINDS GUSTING TO
50 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN WITH RAINFALL RATES
BETWEEN ONE AND TWO INCHES AN HOUR.

RESIDENTS SHOULD REMAIN INDOORS AWAY FROM WINDOWS.

GW
Special weather statement, Feb 23, 10:55 PM CST, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1055 PM CST MON FEB 23 2004

TXZ229-240530-
LA SALLE-
1055 PM CST MON FEB 23 2004

...A STRONG THUNDERSTORM WILL CONTINUE ACROSS NORTHWESTERN LA SALLE
COUNTY THROUGH 1130 PM CST...

AT 1055 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM ENTERING NORTHWESTERN LA SALLE COUNTY...OR ABOUT
7 MILE WEST OF WOODWARD...MOVING NORTHEAST AT 20 MPH.

THIS STRONG THUNDERSTORM COULD PRODUCE SMALL HAIL...WINDS GUSTING TO
50 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN WITH RAINFALL RATES
BETWEEN ONE AND TWO INCHES AN HOUR.

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 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, 10:06 AM CSTSevere Thunderstorm WarningCRPJim Wells39 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

Flash Flood Warnings in Texas, 2004Every flash flood 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.