Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 10, NWS Brownsville, TX

July 16, 2002Jim Hogg County, Texas

NWS Brownsville, TX issued this flash flood warning at Jul 16, 2002, 4:24 AM CDT for Jim Hogg 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 as issued.

The facts

Issued
Jul 16, 2002, 4:24 AM CDT (09:24 UTC)
Expired
Jul 16, 2002, 7:25 AM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Jim Hogg County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 9.4 hours before the alert went out and 163 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 2002-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1494 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 2002-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
1494 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBRO 160924
FFWBRO
TXC247-161225-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
425 AM CDT TUE JUL 16 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL JIM HOGG COUNTY IN DEEP SOUTH TEXAS

* UNTIL 725 AM CDT

* AT 424 AM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED              
  THUNDERSTORMS WITH VERY HEAVY RAINFALL 8 MILES SOUTH AND SOUTHWEST 
  OF HEBBRONVILLE...MOVING NORTH AT 10 MPH. DOPPLER RADAR            
  ESTIMATED TWO INCHES OF RAINFALL DURING THE PAST HOUR IN THIS AREA.

* 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...RANDADO AND HEBBRONVILLE.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR INCHES ARE POSSIBLE IN 
THE WARNED AREA.

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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

LAT...LON 2684 9892 2683 9857 2735 9857 2725 9892

PHILO
1 follow-up statement
000 
WGUS74 KBRO 161039
FFSBRO
TXC247-161225-

FLASH FLOOD STATEMENT             
NATIONAL WEATHER SERVICE BROWNSVILLE TX
540 AM CDT TUE JUL 16 2002

...A FLASH FLOOD WARNING CONTINUES FOR JIM HOGG COUNTY UNTIL 725 
AM...

AT 539 AM...DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN 
OVER MOST OF NORTHERN JIM HOGG COUNTY.

RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS ALREADY FALLEN OVER 
NORTHERN JIM HOGG COUNTY...JUST SOUTH OF HEBBRONVILLE. PEOPLE 
TRAVELING SOUTH OF HEBBRONVILLE IN NORTHERN JIM HOGG COUNTY SHOULD 
WATCH FOR FLOODED AREAS. THIS SAME AREA RECEIVED 3 TO 4 INCHES OF 
RAINFALL FROM STORMS YESTERDAY.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

LAT...LON 2683 9895 2683 9848 2739 9852 2734 9892

PHILO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 3:33 AM CDTSpecial Marine WarningBRO57 min
Jul 16, 3:33 AM CDTSpecial Marine WarningBRO57 min
Jul 16, 6:30 AM CDTFlash Flood WarningBROZapata3 hr
Jul 16, 9:29 AM CDTFlash Flood WarningBROZapata3 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.