Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 44, NWS Brownsville, TX

October 26, 2002Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Oct 26, 2002, 1:49 AM 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
Oct 26, 2002, 1:49 AM CDT (06:49 UTC)
Expired
Oct 26, 2002, 4:45 AM CDT
In force
3 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), 29 km from the middle of the area, began a volume at 06:50 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, 6.8 hours before the alert went out and 31 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 00:00Z on 2002-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1449 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, Brownsville Intl, TX at 00:00Z on 2002-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
1449 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBRO 260649
FFWBRO
TXC061-260945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
150 AM CDT SAT OCT 26 2002

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 445 AM CDT

* AT 144 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY
  HEAVY RAINFALL 7 MILES SOUTH OF BROWNSVILLE...MOVING NORTH AT 35
  MPH. DOPPLER RADAR ESTIMATED ONE TO TWO INCHES PER HOUR WITH THESE 
  STORMS.

* 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...SAN BENITO...RIO HONDO AND LOS FRESNOS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

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

LAT...LON 2605 9773 2605 9725 2630 9736 2628 9767

CASTILLO
3 follow-up statements
000 
WGUS74 KBRO 260811
FFSBRO
TXC061-260945-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
310 AM CDT SAT OCT 26 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 445 AM CDT FOR CAMERON 
COUNTY... 

AT 307 AM CDT...DOPPLER RADAR INDICATED AN AREA OF VERY HEAVY 
RAINFALL 19 MILES SOUTH OF BROWNSVILLE...MOVING NORTH AT 15 MPH.

HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...SAN BENITO...BROWNSVILLE...
RANCHO VIEJO...LOS FRESNOS...LAGUNA VISTA AND LAGUNA HEIGHTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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

LAT...LON 2590 9752 2605 9720 2626 9738 2620 9768

CASTILLO/PHILO
000 
WGUS74 KBRO 260919
FFSBRO
TXC061-260945-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
419 AM CDT SAT OCT 26 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 445 AM CDT FOR CAMERON 
COUNTY...

AT 418 AM CDT...DOPPLER RADAR INDICATED AN AREA OF VERY HEAVY 
RAINFALL NEAR BROWNSVILLE...MOVING NORTHWEST AT 30 MPH.

HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...SAN BENITO...HARLINGEN...
BROWNSVILLE...RIO HONDO...RANCHO VIEJO AND LOS FRESNOS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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

LAT...LON 2587 9740 2624 9736 2625 9765 2610 9784

CASTILLO
000 
WGUS74 KBRO 260955
FFSBRO
TXC061-261010-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
455 AM CDT SAT OCT 26 2002

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR 445 AM CDT FOR 
CAMERON COUNTY HAS EXPIRED...

THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN
THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE
FLASH FLOODING THREAT. EVEN THOUGH STREAM AND CREEK LEVELS ARE NOW
FALLING...SOME ROADWAYS MAY STILL BE COVERED WITH WATER. MOTORISTS
ARE ADVISED TO AVOID DRIVING THROUGH FLOODED ROADWAYS.

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

LAT...LON 2601 9770 2587 9718 2623 9734 2620 9782

CASTILLO

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.