Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 2, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Apr 29, 2003, 11:10 PM CDT for Zapata 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
- Apr 29, 2003, 11:10 PM CDT (04:10 UTC)
- Expired
- Apr 30, 2003, 2:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Brownsville, TX
- Area
- Counties, with a storm outline in the text
County Zapata County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 4.2 hours before the alert went out and 199 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.
- Mixed-layer CAPE
- 2110 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 728 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -33 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KBRO 300411
FFWBRO
TXC505-300700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1110 PM CDT TUE APR 29 2003
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ZAPATA COUNTY IN DEEP SOUTH TEXAS
* UNTIL 200 AM CDT
* AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR IN
BROWNSVILLE INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL
ACROSS CENTRAL AND SOUTHERN ZAPATA COUNTY. DOPPLER RADAR ESTIMATED
THAT FROM 3 TO 5 INCHES OF RAINFALL HAVE OCCURRED JUST TO THE
NORTH AND EAST OF THE TOWN OF ZAPATA. THIS WILL CAUSE FLASH
FLOODING TO OCCUR NEAR HIGHWAY 16 AND FARM TO MARKET ROAD 2687 IN
ZAPATA 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 FLOODING
INCLUDE THE ZAPATA AREA.
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.
LAT...LON 2715 9920 2689 9937 2658 9917 2669 9900
2680 9896 2705 9898
$$
SPEECE1 follow-up statement
000
WGUS74 KBRO 300511
FFSBRO
TXC505-300600-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1209 AM CDT WED APR 30 2003
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR ZAPATA COUNTY HAS
BEEN CANCELLED...
EXCESS RUNOFF FROM THE HEAVY RAIN PRODUCING THUNDERSTORMS HAS ENDED
OVER THE WARNED AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE
RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF
FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW
ENFORCEMENT AGENCY.
LAT...LON 2703 9897 2681 9898 2669 9900 2660 9916
2683 9929 2703 9944
$$
SPEECEThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 9:31 PM CDT | Severe Thunderstorm Warning | BRO | Zapata | 59 min |
| Apr 29, 10:34 PM CDT | Severe Thunderstorm Warning | BRO | Zapata | 26 min |
| Apr 29, 11:02 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Starr, Zapata | 58 min |
| Apr 30, 12:01 AM CDT | Severe Thunderstorm Warning | BRO | Hidalgo, Starr | 59 min |
| Apr 30, 1:01 AM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 44 min |
| Apr 30, 2:17 AM CDT | Special Marine Warning | BRO | 28 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.