Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 5, NWS Brownsville, TX

June 15, 2003Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Jun 15, 2003, 1:58 PM CDT for Cameron 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
Jun 15, 2003, 1:58 PM CDT (18:58 UTC)
Expired
Jun 15, 2003, 5:00 PM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Cameron County, TX

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 7.0 hours before the alert went out and 28 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 2003-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3746 joules per kilogram.LCLEL10008507005003002001001 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 2003-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
3746 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-7 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 151902
FFWBRO
TXC061-152200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
158 PM CDT SUN JUN 15 2003

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 500 PM CDT

* AT 150 PM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED              
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS ALL OF CAMERON       
  COUNTY...AND FORMING TO THE SOUTHWEST OF CAMERON COUNTY IN         
  ADJACENT MEXICO. MOVEMENT IS EAST AT 15 MPH. DOPPLER RADAR         
  ESTIMATED FROM 2 TO 3 INCHES PER HOUR ARE FALLING FROM THESE       
  THUNDERSTORMS. 

* 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 FLOODING
  INCLUDE...PORT ISABEL...SAN BENITO...LA FERIA...HARLINGEN...SANTA
  ROSA...RIO HONDO...RANCHO VIEJO...LOS FRESNOS...LAGUNA VISTA...
  LAGUNA HEIGHTS AND COMBES.

* ADDITIONAL RAINFALL OF 2 TO 4 INCHES ARE POSSIBLE DURING THE       
  AFTERNOON.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 2626 9724 2591 9717 2598 9785 2631 9783

$$

PHILO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 10:16 AM CDTSpecial Marine WarningBRO44 min
Jun 15, 11:00 AM CDTSpecial Marine WarningBRO60 min
Jun 15, 11:55 AM CDTFlash Flood WarningBROKenedy3 hr
Jun 15, 12:38 PM CDTSevere Thunderstorm WarningBROKenedy, Willacy37 min
Jun 15, 12:51 PM CDTFlash Flood WarningBROWillacy3 hr
Jun 15, 1:20 PM CDTSevere Thunderstorm WarningBROCameron, Willacy40 min
Jun 15, 1:28 PM CDTTornado WarningBROCameron, Willacy32 min
Jun 15, 2:10 PM CDTSevere Thunderstorm WarningBROCameron50 min
Jun 15, 2:30 PM CDTSpecial Marine WarningBRO60 min

Nearby

Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003

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.