Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 24, NWS Brownsville, TX

September 15, 2002Kenedy County, Willacy County, Texas

NWS Brownsville, TX issued this flash flood warning at Sep 15, 2002, 2:14 PM CDT for Kenedy County, Willacy County, Texas. It was in force for 106 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
Sep 15, 2002, 2:14 PM CDT (19:14 UTC)
Expired
Sep 15, 2002, 4:00 PM CDT
In force
106 min
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

Counties Kenedy County, TX, Willacy County, TX

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 7.2 hours before the alert went out and 95 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 2002-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2284 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 12:00Z on 2002-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
2284 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
32 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 KBRO 151914 CCA
FFWBRO
TXC261-489-152045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
200 PM CDT SUN SEP 15 2002

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLOOD WARNING FOR...
  EASTERN KENEDY COUNTY AND 
  EASTERN WILLACY COUNTY
  IN DEEP SOUTH TEXAS


* UNTIL 400 PM CDT

* AT 150 PM CDT...RADAR INDICATED SCATTERED THUNDERSTORMS WITH VERY 
HEAVY RAIN OCCURRING OVER THE COASTAL SECTIONS OF DEEP SOUTH 
TEXAS...BETWEEN RIO HONDO AND BAFFIN BAY. STORMS WERE MOVING NORTH 
AT 15 MPH. RADAR ESTIMATED RAINFALL RATES OF UP TO 2 INCHES PER HOUR 
IN THE STRONGEST STORMS IN EASTERN WILLACY AND NORTHEASTERN KENEDY 
COUNTIES. STORMS ARE EXPECTED TO DEVELOP INLAND OVER THE WARNED AREA 
DURING THE REMAINDER OF THE AFTERNOON.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE 
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL RESULT IN 
FLOODING OF SMALL CREEKS AND STREAMS. ADDITIONALLY...COUNTRY ROADS 
AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW 
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. DRIVE SLOWLY ON WATER-COVERED ROADWAYS TO AVOID 
HYDRO-PLANING.

LAT...LON 2640 9781 2637 9748 2720 9749 2719 9793

$$
SIERRA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 1:20 PM CDTFlash Flood WarningBROStarr115 min
Sep 15, 2:04 PM CDTFlash Flood WarningBROKenedy, Willacy116 min
Sep 15, 3:27 PM CDTFlash Flood WarningBROStarr58 min
Sep 15, 3:56 PM CDTFlash Flood WarningBROHidalgo64 min
Sep 15, 4:07 PM CDTTornado WarningBROCameron, Willacy38 min
Sep 15, 4:16 PM CDTSpecial Marine WarningBRO44 min
Sep 15, 4:16 PM CDTSpecial Marine WarningBRO44 min
Sep 15, 4:30 PM CDTFlash Flood WarningBROStarr55 min
Sep 15, 5:09 PM CDTSpecial Marine WarningBRO51 min
Sep 15, 5:10 PM CDTFlash Flood WarningBROHidalgo110 min

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.