Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 56, NWS Brownsville, TX

October 13, 2003Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Oct 13, 2003, 6:00 AM CDT for Cameron County, Texas. It was in force for 2 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: Oct 13, 2003, 6:00 AM CDT (11:00 UTC)
Expired: Oct 13, 2003, 8:00 AM CDT
In force: 2 hr
Issued by: NWS Brownsville, TX
Area: Counties, with a storm outline in the text

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 24 km from the middle of the area, began a volume at 11:03 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

Brownsville Intl, TX (KBRO), launched 00:00Z, 11.0 hours before the alert went out and 26 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1061 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 165 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 131104
FFWBRO
TXC061-131300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
600 AM CDT MON OCT 13 2003

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 800 AM CDT

* AT 600 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAINFALL CONTINUING TO MOVE INTO A    
  SATURATED CAMERON COUNTY...MAINLY OVER AND EAST OF BROWNSVILLE.
  THESE STORMS WERE MOVING NORTH AT 15 MPH. RAINFALL RATES WERE 
  GENERALLY 1 INCH PER HOUR...WITH SOME ISOLATED AREAS RECEIVING 
  TWO INCHES PER HOUR.
  
* 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...
  BROWNSVILLE...SANTA ROSA...RIO HONDO...RANCHO VIEJO...LOS
  FRESNOS...LAGUNA VISTA...LAGUNA HEIGHTS AND COMBES.

FLOODING IS OCCURRING OR IS IMMINENT. 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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. 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.

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.

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

LAT...LON 2625 9723 2572 9718 2606 9786 2633 9785

$$

PHILO

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 13, 2:58 AM CDT	Flash Flood Warning	BRO	Cameron	3 hr
Oct 13, 3:25 AM CDT	Flash Flood Warning	BRO	Jim Hogg	2 hr
Oct 13, 4:42 AM CDT	Flash Flood Warning	BRO	Starr	108 min
Oct 13, 5:44 AM CDT	Flash Flood Warning	BRO	Zapata	3 hr
Oct 13, 5:45 AM CDT	Flash Flood Warning	BRO	Brooks	3 hr
Oct 13, 6:08 AM CDT	Flash Flood Warning	BRO	Jim Hogg	3 hr
Oct 13, 6:15 AM CDT	Flash Flood Warning	BRO	Starr	3 hr
Oct 13, 6:30 AM CDT	Flash Flood Warning	BRO	Starr	3 hr
Oct 13, 7:15 AM CDT	Flash Flood Warning	BRO	Cameron	105 min
Oct 13, 9:00 AM CDT	Flash Flood Warning	BRO	Brooks, Jim Hogg	2 hr

Nearby

Flash Flood Warnings in Texas, 2003 Every 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; radar from the NEXRAD Level II archive.