Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 8, NWS Corpus Christi, TX

August 31, 2001Duval County, Jim Wells County, McMullen County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Aug 31, 2001, 12:19 AM CDT for Duval County, Jim Wells 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 31, 2001, 12:19 AM CDT (05:19 UTC)
Expired
Aug 31, 2001, 3:30 AM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Duval County, TX, Jim Wells County, TX, McMullen County, TX

The radar

The Corpus Christi radar (KCRP), 97 km from the middle of the area, began a volume at 05:20 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.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 5.3 hours before the alert went out and 114 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 2001-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3264 joules per kilogram.LCLEL10008507005003002001001 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 2001-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
3264 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
567 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
80 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 310526
FFWCRP
TXC131-249-311-310830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1219 AM CDT FRI AUG 31 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DUVAL COUNTY IN TEXAS
  WESTERN JIM WELLS COUNTY IN TEXAS
  SOUTHERN MCMULLEN COUNTY IN TEXAS

* UNTIL 330 AM CDT

* AT 1218 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED VERY HEAVY RAIN AND STRONG THUNDERSTORMS MOVING
  SLOWLY NORTHEAST ACROSS MOST OF DUVAL COUNTY...SOUTHERN
  MCMULLEN COUNTY AND WESTERN PARTS OF JIM WELLS COUNTY.
  RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH ISOLATED AMOUNTS
  NEAR 6 INCHES HAVE ALREADY FALLEN ACROSS MANY AREAS IN THIS
  REGION.  ROADS ARE ALREADY BEGINNING TO FLOOD IN FREER.  


* SOME LOCATIONS AFFECTED INCLUDE....
  FREER... 
  SEVEN SISTERS...
  SAN DIEGO...
  ROSITA...
  RIOS...
  REALITOS...
  LOMA ALTA...

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.

LAT...LON 2744 9878 2729 9819 2777 9803 2821 9844
          2825 9877

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 Aug 30, 7:30 PM CDT, 4 hours 49 minutes earlier.

Area forecast discussion, Aug 30, 7:30 PM CDT, 4 hours 49 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
730 PM CDT THU AUG 30 2001

UPDATED ZFP TO REFLECT EXPANDED FFA AREA.  EXPANDED FFA TO TAKE IN
COUNTIES NEAR TRAIN ECHO AREA...NORTHERN WEBB...LA
SALLE...MCMULLEN...LIVE OAK.  THE LINE OF SHOWERS AND THUNDERSTORMS
IN THIS AREA HAS BEEN STATIONARY FOR THE LAST FEW HOURS.  3 HOUR
RAIN TOTALS ARE FROM 3 TO 4 INCHES.  ADD EXPECTED RAIN TONIGHT AND
TOMORROW TO THIS AREA...FFG VALUES WILL BE APPROACHED OR EXCEEDED.
ALSO UPDATED NE CWFA IN FFA TO CATEGORICAL POPS TONIGHT.

DEEP LAYER MOISTURE ALONG WITH UPR LEVEL DISTURBANCES WILL CONTINUE
OUR RAIN PERIOD.  PER H20 VAPOR...TROF DIGGING INTO TX EXPECTED TO
ENHANCE CONVECTION.  ALL THIS PLUS NOCTURNAL LLJ SHOULD KEEP
ACTIVITY GOING THIS EVENING.

PREVIOUS PRELIMS...

CRP TT 075/088 076/091 076 72563
VCT TT 074/088 075/091 075 72573
LRD EB 077/094 077/098 076 72242

.CRP...FFA THROUGH FRIDAY TXZ229>234...TXZ239...TXZ245>247
       GMZ250-255-270-275...SMALL CRAFT ADVISORY.

KEG...70 SYN
JM...75 MESO

In the hours before

Local storm report, Aug 30, 11:41 PM CDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI,TX
1141 PM CDT THU AUG 30 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

635 PM    5 SE COTULLA              TX   .88 INCH HAIL
08/30/01   LA SALLE

1000 PM    2N MISSION VALLEY         TX   FLOOD
08/30/01   VICTORIA                       FM236 FLOODED NEAR FM237.
                                          CARS STALLED.

1140 PM    LAREDO                    TX   FLOOD
08/30/01   WEBB                           MANY STREETS FLOODED IN
                                          CITY

JM
Local storm report, Aug 31, 12:16 AM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT...COR TYPO
NATIONAL WEATHER SERVICE CORPUS CHRISTI,TX
1141 PM CDT THU AUG 30 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

635 PM     5 SE COTULLA              TX   .88 INCH HAIL
08/30/01   LA SALLE

1000 PM    2N MISSION VALLEY         TX   FLOOD
08/30/01   VICTORIA                       FM236 FLOODED NEAR FM237.
                                          CARS STALLED.

1140 PM    LAREDO                    TX   FLOOD
08/30/01   WEBB                           MANY STREETS FLOODED IN
                                          CITY

JM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 9:15 PM CDTFlash Flood WarningCRPVictoria2 hr
Aug 30, 10:15 PM CDTFlash Flood WarningCRPWebb3 hr
Aug 30, 10:37 PM CDTFlash Flood WarningCRPGoliad3 hr
Aug 30, 11:20 PM CDTFlash Flood WarningCRPVictoria3 hr
Aug 31, 1:05 AM CDTFlash Flood WarningCRPGoliad, Victoria3 hr
Aug 31, 1:12 AM CDTFlash Flood WarningCRPWebb3 hr
Aug 31, 2:01 AM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells59 min
Aug 31, 2:33 AM CDTFlash Flood WarningCRPBee, Live Oak3 hr
Aug 31, 2:53 AM CDTSevere Thunderstorm WarningCRPJim Wells, Live Oak, San Patricio67 min
Aug 31, 2:53 AM CDTSevere Thunderstorm WarningCRPKleberg, Nueces67 min
Aug 31, 3:18 AM CDTFlash Flood WarningCRPDuval, Jim Wells117 min
Aug 31, 3:57 AM CDTSevere Thunderstorm WarningCRPAransas, Nueces, San Patricio43 min
Aug 31, 4:37 AM CDTFlash Flood WarningCRPKleberg, Nueces3 hr
Aug 31, 5:24 AM CDTFlash Flood WarningCRPDuval, Jim Wells2 hr
Aug 31, 7:25 AM CDTFlash Flood WarningCRPJim Wells110 min
Aug 31, 8:24 AM CDTFlash Flood WarningCRPBee, Goliad, Live Oak, Victoria3 hr
Aug 31, 9:45 AM CDTFlash Flood WarningCRPJim Wells2 hr
Aug 31, 11:30 AM CDTFlash Flood WarningCRPBee, Duval, Goliad, Jim Wells, Live Oak, San Patricio and 1 more3 hr
Aug 31, 2:15 PM CDTFlash Flood WarningCRPBee, Goliad, Jim Wells, Kleberg, Nueces, Refugio and 2 more3 hr
Aug 31, 3:37 PM CDTFlash Flood WarningCRPDuval3 hr
Aug 31, 4:00 PM CDTFlash Flood WarningCRPAransas, Calhoun3 hr

Nearby

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.