Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 17, NWS Corpus Christi, TX

August 31, 2001Jim Wells County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Aug 31, 2001, 9:45 AM CDT for Jim Wells County, Texas. It was in force for 2 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, 9:45 AM CDT (14:45 UTC)
Expired
Aug 31, 2001, 11:45 AM CDT
In force
2 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Jim Wells County, TX

The radar

The Corpus Christi radar (KCRP), 59 km from the middle of the area, began a volume at 14:47 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

Brownsville Intl, TX (KBRO), launched 12:00Z, 2.8 hours before the alert went out and 235 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, Brownsville Intl, TX at 12:00Z on 2001-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1762 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, Brownsville Intl, TX at 12:00Z on 2001-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1762 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
752 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
48 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 311448
FFWCRP
TXC249-311645-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JIM WELLS COUNTY IN TEXAS

* UNTIL 1145 AM CDT

* AT 945 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN AND ISOLATED THUNDERSTORMS ONCE AGAIN DEVELOPING
  IN EASTERN DUVAL COUNTY AND ABOUT TO ENTER JIM WELLS COUNTY.  AN
  ADDITIONAL ONE-HALF TO ONE INCH OF RAIN WILL BE POSSIBLE WITH
  THIS NEXT BATCH OF HEAVY RAINFALL.  

* SOME LOCATIONS AFFECTED INCLUDE....
  ALICE...
  ORANGE GROVE...

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.

LAT...LON 2801 9820 2752 9816 2802 9789 2805 9802

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 31, 3:00 AM CDT, 6 hours 45 minutes earlier.

Area forecast discussion, Aug 31, 3:00 AM CDT, 6 hours 45 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
300 AM CDT FRI AUG 31 2001

NOT MUCH TIME THIS MORNING AS MAJOR FLOOD/RIVER FLOOD EVENT
CONTINUES ACROSS MAJORITY OF THE CWFA THIS MORNING.  AS S/W CONTS
TO SWING EWRD THIS MORNING LRG AREA OF CONVECTION WILL ADVANCE
TOWARDS THE COAST.  RAINFALL FROM THURSDAY NIGHT WAS 8-10 INCHES IN
MANY NORTHERN AREAS AND ADDITIONAL RAINFALL WILL OCCUR TODAY..MAINLY
EASTERN SECT THIS MORNING THEN LATER THIS AFTERNOON OUT WEST.
ALREADY SEEING ADDITIONAL DEVELOPMENT ACROSS WRN TX WITH ANOTHER S/W
DROPPING SE.  PWATS AT 2.50+ FROM 00Z SOUNDING AND FCST TO REMAIN
ABOVE 2 INCHES INTO SATURDAY THEN A SLOW DECREASE.  WITH LLJ AND
UPPER TROF FCST TO BE A PLAYER THROUGH TONIGHT WILL CONTINUE THE
FLASH FLOOD WATCH THROUGH TONIGHT.  UPPER LEVEL DIFLUENCE AND GOOD
MOISTURE CONVERGENCE WILL ALSO AID IN PRODUCTION OF RAINFALL.

CONVECTION HEADING EAST THIS MORNING NOW SHOWING SIGNS OF BECOMING
SEVERE WITH BOW FEATURE NOTED IN REFLECTIVITY DATA. DEWPTS AHEAD OF
THIS LINE REMAIN IN THE UPPER 70S TO NEAR 80 THIS MORNING.

TEMPS CONT TO BE HELD DOWN..DUE TO CLOUDS AND PCPN.  THIS TREND WILL
CONT.  WINDS REMAIN SELY.

MARINE...PRESS GRADIENT/LLJ STRONGER THIS MORNING THAN EXPECTED.
WILL BUMP WINDS UP A NOTCH TO SCEC BAYS...SCA WATERS.  LINE OF
SEVERE THUNDERSTORMS APCHG THE COAST WILL EXIT BY MID MORNING
LEAVING SUBSIDENCE IN ITS WAKE DURING THE AFTN. NXT S/W WILL MOVE IN
LATER THIS AFTN WITH PRECIP CONFINED MAINLY OVER LAND AND THE BAYS.
GIVEN CURRENT CONVECTIVE ATMOSPHERE WILL NOT MAKE ANY CHANGES TO THE
EXTENDED.

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

CRP TB 088/076 091/076 090 744
VCT TB 084/074 089/075 091 845
LRD EB 090/077 095/076 094 544

MSL..73 / KEG..70 / MB..80 / JM..75

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, 12:19 AM CDTFlash Flood WarningCRPDuval, Jim Wells, McMullen3 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, 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.