Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 103, NWS Corpus Christi, TX

November 21, 2004Victoria County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Nov 21, 2004, 12:57 AM CST for Victoria County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 21, 2004, 12:57 AM CST (06:57 UTC)
Expired: Nov 21, 2004, 3:00 AM CST
In force: 2 hr
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 130 km from the middle of the area, began a volume at 06:57 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.

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

Corpus Christi, TX (KCRP), launched 00:00Z, 7.0 hours before the alert went out and 131 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: 2240 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 699 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 9.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KCRP 210700
FFWCRP
TXC469-210900-
/X.NEW.KCRP.FF.W.0009.041121T0657Z-041121T0900Z/
/0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1257 AM CST SUN NOV 21 2004

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

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

* UNTIL 300 AM CST

* AT 1250 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT MOST OF THE VERY HEAVY RAINFALL HAS MOVED OUT OF THE AREA.  
  HOWEVER...AN ADDITIONAL 1/4 TO 1/2 INCH OF RAIN IS STILL POSSIBLE
  MAINLY OVER NORTHERN VICTORIA COUNTY.  ALSO...THERE IS STILL 
  FLOODING CONTINUING OVER THE AREA.  IT WILL TAKE SOME TIME FOR 
  THE WATERS TO RECEDE. 

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.

LAT...LON 2885 9723 2888 9723 2885 9727 2889 9728
      2910 9698 2905 9691 2903 9684 2894 9680
      2885 9673 2879 9672 2865 9716 2879 9716
      2883 9718

$$

GW

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 Nov 20, 10:24 PM CST, 2 hours 33 minutes earlier.

Area forecast discussion, Nov 20, 10:24 PM CST, 2 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1024 PM CST SAT NOV 20 2004

.UPDATED...MSAS THETA-E REVEAL THE BNDRY ALONG THE NRN CWFA. ETA
PROGS MID/UPPER Q-VECTOR CONVERGENCE OVERNIGHT. EXPECT ADDITIONAL
SCT CONVECTION OVR THE NERN CWFA...OWING TO THE BEST COMBINATION OF
SFC/UPPER FORCING AND CIN VALUES. MADE MINOR ADJUSTMENTS TO PREVIOUS
TEMP/WIND FCST FOR TNGT. ANTICIPATE AT LEAST PATCHY FOG OVERNIGHT...
ESP OVR THE NERN CWFA OWING TO COPIOUS RAINFALL THAT FELL DRG THE
PAST FEW HOURS/LGT WIND OVERNIGHT. HWR...NOT SURE IF DENSE FOG WILL
OCCUR AS THE COLUMN IS FAIRLY MOIST FROM THE SFC TO 800 MB...BASED
ON THE MOST RECENT CRP SOUNDING.

&&

.MARINE...ALTHOUGH EXPECT WIND SPEEDS TO REMAIN IN THE SCEC RANGE
OVR THE COASTAL WATERS...ANTICIPATE THAT SEAS WILL REACH 7 FEET OVR
THE OFFSHORE WATERS. ANTICIPATE ISOLD CONVECTION OVERNIGHT.

&&

.AVIATION...MVFR VSBLTYS WITH FOG OCCURRING ACROSS RIO GRANDE PLAINS
AND WILL LOWER TO IFR CIGS AND VSBLTYS OVER THE NEXT 3 TO 6
HOURS...IMPACTING LRD AND COT...AND CONTINUING THRU EARLY SUNDAY
MORNING. IFR CIGS AND VSBLTYS EXPECTED TO SPREAD EAST INTO ALI
OVERNIGHT...POSSIBLY LIFR VSBLTYS AT TIMES BETWEEN 11Z AND 14Z.

STATIONARY BOUNDARY DRAPED FROM COT TO VCT. SHOWERS AND THUNDERSTORMS
WILL SLOWLY END AT VCT THRU 06Z AS THEY DRIFT NORTH. IFR CONDITIONS
EXPECTED TO DEVELOP WITH FOG AFTER 06Z AT VCT.

MVFR VSBLTYS EXPECTED TO DEVELOP AT CRP BETWEEN 12Z AND 15Z.

&&

.CRP WATCHES/WARNINGS/ADVISORIES...SMALL CRAFT ADVISORY IS IN EFFECT
FROM BAFFIN BAY TO MATAGORDA SHIP CHANNEL 20-60NM OFFSHORE.

&&

87...GENERAL UPDATE/MARINE
76...AVIATION

Hazardous weather outlook, Nov 20, 7:00 AM CST, 17 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
700 AM CST SAT NOV 20 2004

GMZ230-235-250-255-270-275-TXZ229>234-239>247-211200-
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-
527 AM CST SAT NOV 20 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED
TODAY...WITH THE MOST LIKELY AREA FOR RAIN WILL BE OVER THE VICTORIA
AREA AND THE NORTHEASTERN COASTAL COUNTIES.  ONE OR TWO STORMS COULD
BECOME SEVERE...MAINLY NORTH OF A BEEVILLE TO ROCKPORT LINE...AND
PRODUCE WINDS AROUND 60 MPH OR PENNY SIZED HAIL. SOME STORMS COULD
ALSO PRODUCE LOCALLY HEAVY RAINFALL...MAINLY OVER THE VICTORIA AREA
AND THE COASTAL COUNTIES. THERE WILL BE A CHANCE FOR SHOWERS OR
THUNDERSTORMS TONIGHT MAINLY OVER THE VICTORIA AREA AND THE NORTHERN
COASTAL COUNTIES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
A COLD FRONT WILL MOVE ACROSS SOUTH TEXAS DURING THE DAY ON
TUESDAY.  SHOWERS AND THUNDERSTORMS WILL COME TO AN END AS THIS
BOUNDARY MOVES INTO THE COASTAL WATERS.  SOME OF THESE SHOWERS AND
THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY RAINFALL...MAINLY ACROSS THE
VICTORIA AREA. SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED OVER THE
GULF WATERS BEHIND THIS COLD FRONT.  OTHERWISE...NO HAZARDOUS
WEATHER IS ANTICIPATED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY.

GW/MJ

In the hours before

Local storm report, Nov 20, 7:40 PM CST, 5 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
740 PM CST SAT NOV 20 2004

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

0736 PM     TSTM WND GST     VICTORIA                28.82N 96.98W
11/20/2004  70 MPH           VICTORIA           TX   TRAINED SPOTTER

            WIND GUSTS TO 70 MPH ONE MILE NORTH OF FM 185 ON US 59

&&

SBS

Local storm report, Nov 20, 7:48 PM CST, 5 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
748 PM CST SAT NOV 20 2004

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

0747 PM     FLASH FLOOD      VICTORIA                28.82N 96.98W
11/20/2004                   VICTORIA           TX   LAW ENFORCEMENT

            NUMEROUS ROADS IN CENTRAL VICTORIA CITY FLOODED WITH
            WATER ENTERING SOME HOMES.

&&

SBS

Local storm report, Nov 20, 8:00 PM CST, 4 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
800 PM CST SAT NOV 20 2004

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

0745 PM     FUNNEL CLOUD     E PLACEDO               28.67N 96.83W
11/20/2004                   VICTORIA           TX   TRAINED SPOTTER

            FUNNEL CLOUD SPOTTED JUST EAST OF PLACEDO MOVING
            NORTHEAST TOWARD VANDERBILT.

&&

SBS

Local storm report, Nov 20, 8:36 PM CST, 4 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
836 PM CST SAT NOV 20 2004

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

0825 PM     FLASH FLOOD      TELFERNER               28.83N 96.83W
11/20/2004                   VICTORIA           TX   PUBLIC

            STREETS FLOODED IN TELFERNER

&&

SBS

Local storm report, Nov 20, 8:51 PM CST, 4 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
851 PM CST SAT NOV 20 2004

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

0830 PM     FLASH FLOOD      VICTORIA                28.82N 96.98W
11/20/2004                   VICTORIA           TX   FIRE DEPT/RESCUE

            ROADS THROUGHOUT CITY FLOODED AND IMPASSABLE. NUMEROUS
            VEHICLES STRANDED WITH RESCUES TAKING PLACE. VICTORIA
            FIRE DEPT ADVISES CITIZENS TO REMAIN IN PLACE OR AT HOME
            UNTIL FLOOD WATERS RECEDE.

&&

JR

Local storm report, Nov 20, 9:05 PM CST, 3 hours 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
905 PM CST SAT NOV 20 2004

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

0845 PM     FLASH FLOOD      E VICTORIA              28.82N 96.98W
11/20/2004                   VICTORIA           TX   TRAINED SPOTTER

            COUNTY ROADS 442, 234 AND 616 EAST OF VICTORIA HAVE 2 TO
            3 FEET OF WATER COVERING SECTIONS OF THE ROADWAYS.

&&

SBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 20, 6:44 PM CST	Tornado Warning	CRP	Victoria	46 min
Nov 20, 7:27 PM CST	Tornado Warning	CRP	Victoria	63 min
Nov 20, 7:54 PM CST	Flash Flood Warning	CRP	Victoria	2 hr
Nov 20, 9:49 PM CST	Flash Flood Warning	CRP	Victoria	116 min
Nov 20, 11:37 PM CST	Flash Flood Warning	CRP	Victoria	83 min
Nov 21, 6:42 AM CST	Flash Flood Warning	CRP	Goliad	2 hr
Nov 21, 8:42 AM CST	Flash Flood Warning	CRP	Goliad	2 hr
Nov 21, 9:52 AM CST	Flash Flood Warning	CRP	Victoria	3 hr
Nov 21, 10:38 AM CST	Flash Flood Warning	CRP	Goliad	3 hr
Nov 21, 12:13 PM CST	Flash Flood Warning	CRP	Victoria	2 hr
Nov 21, 2:05 PM CST	Flash Flood Warning	CRP	Victoria	3 hr

Nearby

Flash Flood Warnings in Texas, 2004 Every 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; radar from the NEXRAD Level II archive.