Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 43, NWS Brownsville, TX

October 25, 2002Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Oct 25, 2002, 12:12 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 25, 2002, 12:12 AM CDT (05:12 UTC)
Expired: Oct 25, 2002, 3:00 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), 31 km from the middle of the area, began a volume at 05:13 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, 5.2 hours before the alert went out and 33 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: 1499 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 832 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBRO 250512
FFWBRO
TXC061-250800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1202 AM CDT FRI OCT 25 2002

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

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

* UNTIL 300 AM CDT

* AT 1201 AM CDT...DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS  
  WITH VERY HEAVY RAINFALL TRAINING OVER CAMERON COUNTY...WITH       
  ADDITIONAL THUNDERSTORM DEVELOPMENT IN ADJACENT MEXICO.            
  PRECIPITATION CAPABLE OF CAUSING FLASH FLOODING IS INDICATED BY    
  BROWNSVILLE RADAR...RAIN GAUGES AND SATELLITE ESTIMATES. MOVEMENT  
  OF THIS AREA IS EAST AT 10 MPH. 

* 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...BROWNSVILLE...SAN BENITO...HARLINGEN...RIO      
  HONDO...RANCHO VIEJO...LOS FRESNOS AND COMBES.

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.

LAT...LON 2634 9786 2608 9785 2605 9768 2595 9756
          2588 9743 2607 9726 2613 9736 2636 9743
          2629 9753

$$

PHILO

3 follow-up statements

000 
WGUS74 KBRO 250702
FFSBRO
TXC061-250800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
151 AM CDT FRI OCT 25 2002

...A FLASH FLOOD WARNING IS IN EFFECT FOR CAMERON COUNTY UNTIL 3
AM...
...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE RIO GRANDE
VALLEY THROUGH THIS AFTERNOON...

AT 150 AM CDT...BROWNSVILLE RADAR SHOWED THUNDERSTORMS WITH
HEAVY RAINFALL TRAINING OVER CAMERON COUNTY AND THE ADJACENT
GULF WATERS. RAINFALL RATES ESTIMATED FROM DOPPLER RADAR...
ALONG WITH TOTALS RECEIVED FROM GAUGES...ARE FROM 1/2 TO 1
INCH PER HOUR. MANY AREAS OF CAMERON COUNTY...ESPECIALLY IN
THE HARLINGEN AREA...HAVE RECEIVED FROM 3 TO 4 INCHES OF
RAINFALL FROM LAST NIGHTS THUNDERSTORMS. FLOODING OF
STREETS...ROADWAYS AND LOW LYING AREAS IS OCCURRING NOW IN
CAMERON COUNTY.

MANY ROADS OVER CAMERON COUNTY WILL CONTINUE TO BE HAZARDOUS FOR
DRIVING DURING ALL OF THIS MORNING...AS PONDING AND FLOODING
WILL PERSIST. CONTINUE TO DRIVE WITH CARE IN THESE AREAS...AND
REMEMBER TO NEVER DRIVE YOUR VEHICLE INTO WATERS OF UNKNOWN DEPTH.

ADDITIONAL HEAVY RAINFALL IS POSSIBLE OVER ALL OF THE RIO GRANDE
VALLEY THIS WEEKEND. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE
RIO GRANDE VALLEY THROUGH THIS AFTERNOON.

FOR THE LATEST WEATHER INFORMATION CHECK OUT YOUR BROWNSVILLE
NATIONAL WEATHER SERVICE WEBSITE AT WWW.SRH.NOAA.GOV/BRO OR LISTEN
TO NOAA WEATHER RADIO.

PHILO

000 
WGUS74 KBRO 250807
FFSBRO
TXC061-251100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
259 AM CDT FRI OCT 25 2002

...THE FLASH FLOOD WARNING IN EFFECT FOR CAMERON COUNTY HAS 
EXPIRED...
...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE RIO GRANDE
VALLEY THROUGH THIS AFTERNOON...

AT 300 AM CDT...BROWNSVILLE RADAR SHOWED SHOWERS AND THUNDERSTORMS 
WITH HEAVY RAINFALL EXITING EXTREME SOUTHEAST CAMERON COUNTY. PATCHY 
SHOWERS CONTINUED OVER THE OTHER AREAS OF DEEP SOUTH TEXAS. THE 
FLASH FLOOD WARNING FOR CAMERON COUNTY HAS EXPIRED. ALTHOUGH 
RAINFALL HAS BEEN DECREASING...MANY AREAS OF CAMERON 
COUNTY...ESPECIALLY IN THE HARLINGEN AREA...HAVE RECEIVED FROM 3 TO 
4 INCHES OF RAINFALL FROM LAST NIGHTS THUNDERSTORMS. FLOODING OF 
STREETS...ROADWAYS AND LOW LYING AREAS HAS BEEN OCCURRING IN 
CAMERON COUNTY.

MANY ROADS OVER CAMERON COUNTY WILL CONTINUE TO BE HAZARDOUS FOR
DRIVING DURING ALL OF THIS MORNING...AS PONDING AND FLOODING
WILL PERSIST. CONTINUE TO DRIVE WITH CARE IN THESE AREAS...AND
REMEMBER TO NEVER DRIVE YOUR VEHICLE INTO WATERS OF UNKNOWN DEPTH.

ADDITIONAL HEAVY RAINFALL IS POSSIBLE OVER ALL OF THE RIO GRANDE
VALLEY THIS WEEKEND. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE
RIO GRANDE VALLEY THROUGH THIS AFTERNOON.

FOR THE LATEST WEATHER INFORMATION CHECK OUT YOUR BROWNSVILLE
NATIONAL WEATHER SERVICE WEBSITE AT WWW.SRH.NOAA.GOV/BRO OR LISTEN
TO NOAA WEATHER RADIO.

PHILO

000 
WGUS74 KBRO 250904
FFSBRO
TXC061-251101-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
400 AM CDT FRI OCT 25 2002

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE RIO GRANDE VALLEY 
THROUGH THIS AFTERNOON...

AT 400 AM CDT...BROWNSVILLE RADAR SHOWED SHOWERS AND THUNDERSTORMS 
WITH HEAVY RAINFALL EXITING EXTREME SOUTHEAST CAMERON COUNTY. PATCHY 
SHOWERS CONTINUED OVER THE OTHER AREAS OF DEEP SOUTH TEXAS. THE 
FLASH FLOOD WARNING FOR CAMERON COUNTY HAS EXPIRED. ALTHOUGH 
RAINFALL HAS BEEN DECREASING...MANY AREAS OF CAMERON 
COUNTY...ESPECIALLY IN THE HARLINGEN AREA...HAVE RECEIVED FROM 3 TO 
4 INCHES OF RAINFALL FROM LAST NIGHTS THUNDERSTORMS. FLOODING OF 
STREETS...ROADWAYS AND LOW LYING AREAS HAS BEEN OCCURRING IN 
CAMERON COUNTY.

MANY ROADS OVER CAMERON COUNTY WILL CONTINUE TO BE HAZARDOUS FOR 
DRIVING DURING THIS MORNINGS COMMUTE...AS PONDING AND FLOODING WILL 
PERSIST. CONTINUE TO DRIVE WITH CARE IN THESE AREAS...AND REMEMBER 
TO NEVER DRIVE YOUR VEHICLE INTO WATERS OF UNKNOWN DEPTH.

ADDITIONAL HEAVY RAINFALL IS POSSIBLE OVER ALL OF THE RIO GRANDE
VALLEY THIS WEEKEND. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE
RIO GRANDE VALLEY THROUGH THIS AFTERNOON.

FOR THE LATEST WEATHER INFORMATION CHECK OUT YOUR BROWNSVILLE
NATIONAL WEATHER SERVICE WEBSITE AT WWW.SRH.NOAA.GOV/BRO OR LISTEN
TO NOAA WEATHER RADIO.

PHILO

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 7:01 PM CDT	Severe Thunderstorm Warning	BRO	Cameron	67 days
Oct 24, 7:20 PM CDT	Special Marine Warning	BRO		55 min
Oct 24, 7:20 PM CDT	Special Marine Warning	BRO		55 min
Oct 24, 7:57 PM CDT	Flash Flood Warning	BRO	Cameron	2 hr
Oct 24, 8:19 PM CDT	Flash Flood Warning	BRO	Kenedy	41 min
Oct 24, 8:20 PM CDT	Special Marine Warning	BRO		55 min
Oct 24, 9:18 PM CDT	Special Marine Warning	BRO		27 min
Oct 24, 9:18 PM CDT	Special Marine Warning	BRO		57 min
Oct 24, 9:18 PM CDT	Special Marine Warning	BRO		57 min
Oct 24, 9:18 PM CDT	Special Marine Warning	BRO		27 min
Oct 24, 10:05 PM CDT	Flash Flood Warning	BRO	Cameron	115 min
Oct 25, 2:59 AM CDT	Special Marine Warning	BRO		61 min
Oct 25, 9:56 AM CDT	Special Marine Warning	BRO		3 hr

Nearby

Flash Flood Warnings in Texas, 2002 Every 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.