Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 39, NWS Brownsville, TX

October 24, 2002Kenedy County, Texas

NWS Brownsville, TX issued this flash flood warning at Oct 24, 2002, 6:53 PM CDT for Kenedy County, Texas. It was in force for 82 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 24, 2002, 6:53 PM CDT (23:53 UTC)
Expired
Oct 24, 2002, 8:15 PM CDT
In force
82 min
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 103 km from the middle of the area, began a volume at 23:52 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 12:00Z, 11.9 hours before the alert went out and 103 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 12:00Z on 2002-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1063 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2002-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.19395878Sfc1 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
1063 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
197 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KBRO 242353
FFWBRO
TXC261-250115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
653 PM CDT THU OCT 24 2002

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KENEDY COUNTY IN DEEP SOUTH TEXAS

* UNTIL 815 PM CDT

* AT 644 PM CDT...DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS    
  WITH VERY HEAVY RAINFALL OVER CENTRAL KENEDY COUNTY. THE LINE IS   
  MOVING SOUTHWARD TOWARD THE KENEDY/WILLACY COUNTY BORDER. RADAR    
  RAINFALL ESTIMATES INDICATE THAT THE STRONGER STORMS MAY PRODUCE   
  BETWEEN 2 AND 4 INCHES OF RAIN AN HOUR.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH
  FLOODING INCLUDE...SARITA AND BORDER PATROL.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND 
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LAT...LON 2663 9798 2662 9747 2727 9741 2725 9795

$$

JAH
1 follow-up statement
000 
WGUS74 KBRO 250033
FFSBRO
TXC261-250115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
730 PM CDT THU OCT 24 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 815 PM CDT FOR CENTRAL AND 
SOUTHERN KENEDY COUNTY...

AT 720 PM CDT...DOPPLER RADAR CONTINUES TO INDICATE A LINE OF 
INTENSE THUNDERSTORMS EXTENDING EAST-NORTHEAST FROM THE 
KENEDY-HIDALGO COUNTY BORDER TOWARD THE COAST. THE STORMS ARE 
PRODUCING HOURLY RAIN RATES BETWEEN 2 AND 4 INCHES PER HOUR. THE 
ENTIRE LINE OF STORMS IS MOVING SOUTHWARD TOWARD THE KENEDY-WILLACY 
COUNTY LINE....WHERE IT IS EXPECTED TO ARRIVE BY 815 PM CDT.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS WHERE FLOODING IS POSSIBLE INCLUDE...HIGHWAY 
77...AS WELL AS LOW LYING SPOTS ALONG IT. ALSO...FLASH FLOODING IS 
LIKELY OCCURRING OVER ARROYOS IN THE WARNED AREA DUE TO ANTECEDENT 
SOIL CONDITIONS.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LAT...LON 2726 9799 2662 9799 2662 9737 2726 9738

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 4:13 PM CDTSpecial Marine WarningBRO107 min
Oct 24, 4:13 PM CDTSpecial Marine WarningBRO107 min
Oct 24, 5:29 PM CDTSevere Thunderstorm WarningBROHidalgo2 hr
Oct 24, 6:11 PM CDTSpecial Marine WarningBRO2 hr
Oct 24, 6:11 PM CDTSpecial Marine WarningBRO2 hr
Oct 24, 6:18 PM CDTFlash Flood WarningBROHidalgo117 min
Oct 24, 6:30 PM CDTSevere Thunderstorm WarningBROHidalgo67 days

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; radar from the NEXRAD Level II archive.