Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 2, NWS Corpus Christi, TX

July 10, 1996Webb County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 10, 1996, 3:20 AM CDT for 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 10, 1996, 3:20 AM CDT (08:20 UTC)
Expired
Jul 10, 1996, 6:15 AM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties

County Webb County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 8.3 hours before the alert went out and 196 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 1996-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2255 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 1996-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
2255 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1042 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
18 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 
TTAA00 KCRP 100823
FFWCRP
TXC479-101115-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
320 AM CDT WED JUL 10 1996
 
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  615 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY......
 
IN SOUTH CENTRAL TEXAS
 
   ...WEBB COUNTY
 
THUNDERSTORMS CONTINUE TO ROLL ACROSS THE RIO GRANDE RIVER AND INTO
WEBB COUNTY. HEAVY RAINS FROM APPROACHING THUNDERSTORMS WILL ADD TO
EXISTING FLOOD PROBLEMS CAUSED BY EARLIER RAINS. AN ADDITIONAL ONE
TO THREE INCHES OF RAINFALL CAN BE EXPECTED AS THUNDERSTORMS MOVE
ACROSS THE LAREDO METROPOLITAN AREA AND SPREAD INTO WEBB COUNTY.
 
BE ESPECIALLY CAU*TIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY. MOVE TO HIGH GROUND. 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 10, 2:38 AM CDT, 42 minutes earlier.

Area forecast discussion, Jul 10, 2:38 AM CDT, 42 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 AM CDT WED JUL 10 1996

OUTFLOW BOUNDARY FM TSRA OVR W PORTIONS OF THE COASTAL BEND AND
THE RIO GRANDE PLAINS MADE IT TO NWSO CRP BUT QUICKLY COLLAPSED.
ATTM...88D INDICATING A LARGE AREA OF SHRA/TSRA OVR S CENT TX AND
SCATTERED TO NUMEROUS TSRA OVR THE LWR VALLEY. THE UPR LO NEAR
DRT CONTS TO EJECT IMPULSES OVR S TX INITIATING THE CNVTN. 88D
ESTIMATES OF 3 TO 7 INCHES WERE COMMON OVR PORTIONS OF THE RIO
GRANDE PLAINS. ETA PROGS SHOW UPR LO GRADUALLY WEAKENING AND
DRFTG WWD THRU 48 HRS WHICH IS PREFERRED OVR THE NGM WHICH
RETAINS AND DSIPTS THE LO OVR ITS CURRENT POS. MODELS INDICATE
ATMOS BEGINNING TO DRY OUT ALNG S TX AND ADJACENT GULF WATERS WED
EVENING AND THU AS MID/UPR HI CURRENTLY OVR THE GULF MVS WWD
TOWARD S TX. DRIER AIR AND SUBSIDENCE MVNG INTO THE AREA WL
INHIBIT CNVTN WED NIGHT AND THU...ESPECIALLY W/THE ENERGY FM THE
UPR LO MVNG AWAY FM THE AREA. WUD XPCT POPS TO REMAIN TODAY...ESP
OVR W PORTIONS OF THE FA. CURRENT FORECAST IS ON TRACK AND MOS
TEMPS LUK GOOD.

PRELIMS...
CRP 093/077/094   20/00/00
VCT 094/076/094   20/00/00
LRD 099/077/100   30/20/00

SRP...77

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:17 PM CDTSevere Thunderstorm WarningCRPLa Salle58 min
Jul 10, 6:40 AM CDTFlash Flood WarningCRPWebb2 hr

Nearby

Flash Flood Warnings in Texas, 1996Every flash flood warning in 1996

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.