Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 26, NWS Corpus Christi, TX

July 15, 2002Live Oak County, McMullen County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 15, 2002, 1:24 AM CDT for Live Oak County, McMullen 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
Jul 15, 2002, 1:24 AM CDT (06:24 UTC)
Expired
Jul 15, 2002, 4:30 AM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

Counties Live Oak County, TX, McMullen 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

Corpus Christi, TX (KCRP), launched 00:00Z, 6.4 hours before the alert went out and 112 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 2002-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2181 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 2002-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 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
2181 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
6 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 150624
FFWCRP
TXC297-311-150930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
123 AM CDT MON JUL 15 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LIVE OAK COUNTY IN TEXAS
  EASTERN MCMULLEN COUNTY IN TEXAS

* UNTIL 430 AM CDT

* AT 117 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 6 MILES WEST OF GEORGE WEST...MOVING NORHTEAST AT 
  20 MPH.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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 2855 9846 2806 9857 2807 9795 2820 9784
          2852 9801 2862 9825

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 Jul 14, 9:45 PM CDT, 3 hours 39 minutes earlier.

Area forecast discussion, Jul 14, 9:45 PM CDT, 3 hours 39 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
945 PM CDT SUN JUL 14 2002

DISCUSSION...SHORTWAVE TROF APPROACHING THE RIO GRANDE VALLEY SOUTH
OF DEL TRIO EARLY TONIGHT CONTINUES TO ENHANCE THE DIFFLUENT AND
DIVERGENT WIND FIELDS ACROSS THE WESTERN CWA WHERE MULTICELLULAR
CONVECTION CONTINUES.  EARLIER/FASTER PROGRESSION OF THE SEABREEZE
THIS AFTERNOON AS COMPARED TO YESTERDAY AFTERNOON INHIBITED
WIDESPREAD CONVECTION ACROSS THE EASTERN FORECAST BY THE TIME AN
OUTFLOW BOUNDARY PUSHED SOUTH/SOUTHWESTWARD LATE THIS AFTN/EARLY
THIS EVENING.  CONVECTION ACROSS THE CWA REMAINS ALIGNED ALONG A
LINE FROM LAREDO TO JUST NORTH OF THREE RIVERS.  EXPECT CONVECTION
ACROSS THE NWRN CWA TO CONTINUE OVER THE NEXT SEVERAL HOURS WITH
CONVECTION ACROSS THE SWRN CWA TO BE LESS ORGANIZED.  FLOODING WILL
REMAIN THE PRIMARY CONCERN DURING THE SHORT-TERM.  OTHERWISE..FLASH
FLOOD WATCH REMAINS IN EFFECT ACROSS THE ENTIRE CWA THROUGH
MONDAY..WITH THE POTENTIAL OF CONTINUING THROUGH THE MUCH OF
TUE..ESPECIALLY ACROSS THE WRN CWA.  TIME CROSS-SECTIONS SHOW A VERY
DEEP LAYER OF MOISTURE THROUGH THE VERTICAL..WITH A SLUG OF HIGH
PWATS ADVECTING NORTHWARD THROUGH MONDAY..COINCIDENT WITH GREATEST
OMEGA VALUES MON AFTN/MON NIGHT.  WILL MAKE MINOR ADJUSTMENTS TO THE
ZONES..MAINLY TO LOWER POPS ACROSS THE EAST.

MARINE...OVERALL FCST LOOKS GOOD. CONVECTION ONSHORE WILL KEEP WINDS
IN SCEC RANGE OFFSHORE ALL NIGHT. WILL UPDATE FCST TO LESSEN THE
LOWERING TREND OF THE WINDS FOR TONIGHT.

BML.76 / TR.92

.CRP...FFA TXZ229>234-239>247 .

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 9:22 PM CDTFlash Flood WarningCRPMcMullen113 min
Jul 14, 11:14 PM CDTFlash Flood WarningCRPMcMullen2 hr
Jul 15, 1:04 AM CDTSevere Thunderstorm WarningCRPLive Oak41 min
Jul 15, 1:04 AM CDTSevere Thunderstorm WarningCRPJim Wells, Nueces21 days
Jul 15, 1:15 AM CDTTornado WarningCRPLive Oak45 min
Jul 15, 3:33 AM CDTFlash Flood WarningCRPBee, Live Oak3 hr
Jul 15, 3:57 AM CDTFlash Flood WarningCRPDuval, Jim Wells, Webb3 hr
Jul 15, 4:20 AM CDTFlash Flood WarningCRPMcMullen115 min
Jul 15, 6:00 AM CDTFlash Flood WarningCRPVictoria3 hr
Jul 15, 6:31 AM CDTFlash Flood WarningCRPLive Oak3 hr
Jul 15, 6:47 AM CDTFlash Flood WarningCRPDuval, Webb3 hr
Jul 15, 9:48 AM CDTFlash Flood WarningCRPLa Salle, McMullen3 hr
Jul 15, 1:10 PM CDTSpecial Marine WarningCRP2 hr
Jul 15, 1:10 PM CDTSpecial Marine WarningCRP2 hr
Jul 15, 1:50 PM CDTFlash Flood WarningCRPLa Salle3 hr
Jul 15, 3:52 PM CDTFlash Flood WarningCRPDuval3 hr
Jul 15, 4:57 PM CDTFlash Flood WarningCRPMcMullen3 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.