Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 37, NWS Brownsville, TX

October 22, 2002Brooks County, Texas

NWS Brownsville, TX issued this flash flood warning at Oct 22, 2002, 10:07 PM CDT for Brooks County, Texas. It was in force for 113 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 22, 2002, 10:07 PM CDT (03:07 UTC)
Expired
Oct 23, 2002, 12:00 AM CDT
In force
113 min
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Brooks County, TX

The radar

The Corpus Christi radar (KCRP), 104 km from the middle of the area, began a volume at 03:09 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, 3.1 hours before the alert went out and 113 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 2002-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2192 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, Corpus Christi, TX at 00:00Z on 2002-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
2192 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
1.2
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBRO 230307
FFWBRO
TXC047-230500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1002 PM CDT TUE OCT 22 2002

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN AND CENTRAL BROOKS COUNTY IN DEEP SOUTH TEXAS

* UNTIL MIDNIGHT CDT

* AT 1002 PM CDT...THE NATIONAL WEATHER SERVICE DOPPLER RADAR        
  INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ALONG A LINE 
  EXTENDING FROM FALFURRIAS TO 9 MILES NORTHWEST OF ENCINO...MOVING  
  EAST AT 5 TO 10 MPH. DOPPLER RADAR ESTIMATED THAT FROM 3 TO 6      
  INCHES OF RAINFALL HAS OCCURRED SINCE 9 PM OVER THE NORTHERN AND   
  CENTRAL PORTIONS OF BROOKS COUNTY.  

* 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...FALFURRIAS AND ENCINO.  HIGHWAY 281 BETWEEN     
  FALFURRIAS AND ENCINO WILL ALSO EXPERIENCE FLASH FLOODING          
  THROUGH MIDNIGHT.  

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 2727 9843 2694 9844 2691 9801 2726 9801

$$

SPEECE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 22, 7:07 PM CDTFlash Flood WarningBROHidalgo113 min
Oct 22, 7:25 PM CDTSevere Thunderstorm WarningBROKenedy2 hr
Oct 22, 7:30 PM CDTSpecial Marine WarningBRO2 hr
Oct 22, 7:30 PM CDTSpecial Marine WarningBRO2 hr
Oct 22, 8:17 PM CDTFlash Flood WarningBROBrooks, Kenedy118 min
Oct 22, 8:38 PM CDTSevere Thunderstorm WarningBROBrooks112 min
Oct 22, 10:12 PM CDTSevere Thunderstorm WarningBROZapata45 hr
Oct 23, 4:12 AM CDTSpecial Marine WarningBRO3 hr
Oct 23, 4:12 AM CDTSpecial Marine WarningBRO3 hr

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.