Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 67, NWS Corpus Christi, TX

September 15, 2002Nueces County, San Patricio County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Sep 15, 2002, 1:59 PM CDT for Nueces County, San Patricio County, Texas. It was in force for 3 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
Sep 15, 2002, 1:59 PM CDT (18:59 UTC)
Expired
Sep 15, 2002, 5:00 PM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

Counties Nueces County, TX, San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 8 km from the middle of the area, began a volume at 18:58 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 12:00Z, 7.0 hours before the alert went out and 12 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 12:00Z on 2002-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2178 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2002-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
2178 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
73 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 151859
FFWCRP
TXC355-409-152200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
154 PM CDT SUN SEP 15 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN NUECES COUNTY IN TEXAS
  SAN PATRICIO COUNTY IN TEXAS

* UNTIL 500 PM CDT

* AT 154 PM CDT...RADAR INDICATES A BAND OF SHOWERS AND 
THUNDERSTORMS HAS DUMPED OVER 2 INCHES OF RAIN IN AN HOUR OVER THE 
EASTERN PORTION OF CORPUS CHRISTI INTO THE PORTLAND AREA OF SAN 
PATRICIO COUNTY. MORE RAIN IS EXPECTED THROUGH THE REST OF THE 
AFTERNOON AS SHOWERS AND STORMS CONTINUE TO DEVELOP. 

THE CORPUS CHRISTI POLICE DEPARTMENT REPORT MANY ROADS FLOODED NEAR 
THE DOWNTOWN AREAS OF THE CITY

IF YOU ENCOUNTER WATER OF UNKNOWN DEPTH...STOP AND TURN AROUND. DONT 
DRIVE ACROSS A FLOODED ROADWAY.

LAT...LON 2757 9765 2757 9735 2795 9720 2798 9745

PURPURA
1 follow-up statement
000 
WGUS54 KCRP 152159
FFSCRP
TXC355-409-152230-

FLOOD STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
455 PM CDT SUN SEP 15 2002
 
THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NUECES AND SAN 
PATRICIO COUNTIES HAS EXPIRES AS OF 5 PM.

ALTHOUGH SHOWERS AND A FEW THUNDERSTORMS WILL CONTINUE ACROSS THESE 
TWO COUNTIES...THE RAINFALL HAS DIMINISHED. THEREFORE THE FLASH 
FLOOD WARNING HAS EXPIRED.

HOWEVER...THE CONDITIONS ARE STILL FAVORABLE FOR HEAVY RAINFALL AND 
A FLASH FLOOD WATCH CONTINUES OVERNIGHT.

$$

PURPURA

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 Sep 15, 10:30 AM CDT, 3 hours 29 minutes earlier.

Area forecast discussion, Sep 15, 10:30 AM CDT, 3 hours 29 minutes before
COASTAL BEND FORECAST DISCUSSION...UPDATED.
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1030 AM CDT SUN SEP 15 2002

BUSY MORNING AS FRONTAL BOUNDARY HAS UNEXPECTEDLY MOVED FARTHER
SOUTH DURING THE NIGHT.  THIS HAS PROVIDED THE FOCUS FOR THE HEAVY
RAINS THIS MORNING.  AVN HAS THE BEST HANDLE ON THE MOISTURE AND THE
SHORTWAVE LOCATIONS.  EXPECT CURRENT SHORTWAVE/MCS TO CONTINUE TO
MOVE NE OUT OF CRP CWA.   THIS SHOULD DECREASE THE RAFL COVERAGE
OVER THE NE CWA BY EARLY AFTERNOON.  HOWEVER...FRONTAL/OUTFLOW
BOUNDARY NOW APPEARS TO HAVE DRAPED ITSELF FROM LRD TO ALI TO VCT
BEHIND DEPARTING SHWV.  DECENT SLY LLJ AND UNSTABLE ATMOS DEVELOPING
ACROSS BRO AREA ARGUES THAT SHRA/TSRA WILL CONTINUE TO TRAIN S TO N
OVER THE CWA INTO THIS AFTERNOON.  HAVE ALREADY MADE SOME MINOR
MODIFICATIONS TO THE ZFP REGARDING POPS/TEMPS.

LOOKING AHEAD...MORE MOISTURE AND ENERGY LOCATED IN THE SW GULF WILL
ROTATE AROUND THE UPR HIGH INTO THE AREA TOMORROW.  ALSO UPR LOW
OVER WEST TX WILL CONTINUE TO SEND SPOKES OF VORTICITY OVER THE AREA
AND PROVIDE A RRQ JET THROUGH TUE.  THIS ALL SUPPORTS EARLIER
INITIATION OF A FLASH FLOOD WATCH OVER THE ENTIRE CWA.

MARINE...WILL MAKE CHANGES MOSTLY TO 1ST PERIOD AS FNT/OUTFLOW HAS
BACKED WINDS TO NORTHEAST BAYS/EAST OPEN WATERS.

.CRP...FLASH FLOOD WATCH IN EFFECT ALL AREAS THROUGH 1000Z.

92/TR
70/JKP

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 3:47 AM CDTFlash Flood WarningCRPLa Salle, McMullen, Webb3 hr
Sep 15, 5:14 AM CDTFlash Flood WarningCRPLive Oak3 hr
Sep 15, 5:50 AM CDTFlash Flood WarningCRPBee3 hr
Sep 15, 6:54 AM CDTFlash Flood WarningCRPLa Salle, McMullen3 hr
Sep 15, 7:35 AM CDTFlash Flood WarningCRPBee, Live Oak3 hr
Sep 15, 9:44 AM CDTFlash Flood WarningCRPLa Salle, McMullen3 hr
Sep 15, 10:28 AM CDTFlash Flood WarningCRPBee, Live Oak3 hr

Nearby

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

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.