Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 28, NWS Corpus Christi, TX

July 15, 2002Duval County, Jim Wells County, Webb County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 15, 2002, 3:57 AM CDT for Duval County, Jim Wells County, Webb 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 counties it named.

The facts

Issued: Jul 15, 2002, 3:57 AM CDT (08:57 UTC)
Expired: Jul 15, 2002, 7:00 AM CDT
In force: 3 hr
Issued by: NWS Corpus Christi, TX
Area: Whole counties

Counties Duval County, TX, Jim Wells County, TX, Webb County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 9.0 hours before the alert went out and 128 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: 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 150857
FFWCRP
TXC131-249-479-151200-

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

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DUVAL COUNTY IN TEXAS
  NORTHERN JIM WELLS COUNTY IN TEXAS
  EASTERN WEBB COUNTY IN TEXAS

* UNTIL 700 AM CDT

* AT 353 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  AREAS OF VERY HEAVY RAINFALL FROM JUST NORTH OF AGUILARES TO NEAR 
  ROSITA...EXTENDING TO ORANGE GROVE.  THESE SHOWERS AND STORMS WERE
  MOVING NORTHEAST 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.

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.

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 15, 2:38 AM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Jul 15, 2:38 AM CDT, 1 hour 19 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
238 AM CDT MON JUL 15 2002

AN ACTIVE WX PATTERN IS IN STORE FOR SOUTH TX THROUGH TUE.  SOUTH TX
WL CONTINUE TO HAVE A DECENT DIFLUENT PATTERN IN THE UPR LVLS.  THIS
WL BE FURTHER ENHANCED BY THE RRQ OF A JET STREAK MOVING THROUGH
NERN TX.  ALSO...FAVORABLE DYNAMICS WL BE COMING FROM AN IMPRESSIVE
UPR LOW/VORT MAX CURRENTLY IN NERN MEXICO.  THE LATTER APPEARS TO BE
MAINLY RESPONSIBLE FOR THE CURRENT MCSS AFFECTING THE NWRN PART OF
THE CWFA.  THIS UPR LOW IS PROGGED TO REMAIN TO OUR WEST THROUGH
TUE.  MEANWHILE...PWS WL BE SURGING EVEN HIGHER AND WL REACH 2.2 TO
2.4 INCHES IN MANY AREAS.  SATL IMAGERY AND THE MODELS HAVE PICKED
UP ON ANOTHER SLUG OF MOISTURE FROM THE SRN GULF WHICH WL AFFECT THE
CWFA LATER TDA.  ON TOP OF THIS...THERE IS A WK SFC BOUNDARY
STRETCHING FROM VCT TO SWWD TO TO THE SOUTH OF LRD.  THIS FEATURE
SHOULD TEND TO MOVE SLOWLY EWD TDA.  ALL OF THESE PARAMETERS WL KEEP
THE HEAVY RAIN/FLOODING THREAT GOING THROUGH TUE.  THUS...THE FFA WL
BE CONTINUED AND EXTENDED THROUGH TUE TO COVER THE ENTIRE CWFA.

WL BE A BIT MORE PESSIMISTIC FOR THE PERIOD TUE NIGHT AND WED.  BLV
THE ETA SOLN IS HANDLING THE SYNOPTIC FEATURES...ESPECIALLY THE UPR
LOW IN MEXICO BETTER THAN THE AVN.  THE AVN LOOKS TO BE A BIT TOO
AGGRESSIVE WITH DRYING US OUT SO QUICKLY.  AFTER WED...WL NOT MAKE
ANY CHANGES TO THE PREV FCST TREND.

MARINE...MODERATE TO STRONG ONSHORE FLOW WL CONTINUE THROUGH THE
SHORT RANGE FCST.   WL MAINTAIN SCTD TO NUM SHRAS/TSRAS IN THE FCST
FOR THE SAME REASONS NOTED ABV.  THINGS BEGIN TO SLOWLY IMPROVE BY
WED WITH GENERALLY MORE TRANQUIL CONDITIONS AFTER THAT.

PRELIMS FOLLOW...
CRP TT 088/077 084/078 091 56642
VCT TT 086/074 082/076 089 88853
LRD TT 086/075 084/077 088 77653
NGP TT 087/079 086/080 089 56642

MB(80)...SYNOPTIC
GW(86)...MESO/MARINE

.CRP...FLASH FLOOD WATCH FOR TXZ229>234-239>247 THROUGH TUE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 9:22 PM CDT	Flash Flood Warning	CRP	McMullen	113 min
Jul 14, 11:14 PM CDT	Flash Flood Warning	CRP	McMullen	2 hr
Jul 15, 1:04 AM CDT	Severe Thunderstorm Warning	CRP	Live Oak	41 min
Jul 15, 1:04 AM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Nueces	21 days
Jul 15, 1:15 AM CDT	Tornado Warning	CRP	Live Oak	45 min
Jul 15, 1:24 AM CDT	Flash Flood Warning	CRP	Live Oak, McMullen	3 hr
Jul 15, 3:33 AM CDT	Flash Flood Warning	CRP	Bee, Live Oak	3 hr
Jul 15, 4:20 AM CDT	Flash Flood Warning	CRP	McMullen	115 min
Jul 15, 6:00 AM CDT	Flash Flood Warning	CRP	Victoria	3 hr
Jul 15, 6:31 AM CDT	Flash Flood Warning	CRP	Live Oak	3 hr
Jul 15, 6:47 AM CDT	Flash Flood Warning	CRP	Duval, Webb	3 hr
Jul 15, 9:48 AM CDT	Flash Flood Warning	CRP	La Salle, McMullen	3 hr
Jul 15, 1:10 PM CDT	Special Marine Warning	CRP		2 hr
Jul 15, 1:10 PM CDT	Special Marine Warning	CRP		2 hr
Jul 15, 1:50 PM CDT	Flash Flood Warning	CRP	La Salle	3 hr
Jul 15, 3:52 PM CDT	Flash Flood Warning	CRP	Duval	3 hr
Jul 15, 4:57 PM CDT	Flash Flood Warning	CRP	McMullen	3 hr

Nearby

Flash Flood Warnings in Texas, 2002 Every 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.