Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 23, NWS Brownsville, TX

November 16, 2001Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this flash flood warning at Nov 16, 2001, 7:50 AM CST for Jim Hogg County, 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 counties it named.

The facts

Issued
Nov 16, 2001, 7:50 AM CST (13:50 UTC)
Expired
Nov 16, 2001, 11:00 AM CST
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Whole counties

Counties Jim Hogg County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 164 km from the middle of the area, began a volume at 13:51 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

Corpus Christi, TX (KCRP), launched 12:00Z, 1.8 hours before the alert went out and 176 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, Corpus Christi, TX at 12:00Z on 2001-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 311 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, Corpus Christi, TX at 12:00Z on 2001-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 224 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
311 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
677 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
224 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBRO 161350
FFWBRO
TXC247-505-161700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
750 AM CST FRI NOV 16 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JIM HOGG COUNTY IN SOUTH CENTRAL TEXAS
  ZAPATA COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 11 AM CST

* AT 733 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED    
  THUNDERSTORMS WITH VERY HEAVY RAINFALL NEAR HEBBRONVILLE...MOVING  
  SLOWLY SOUTH AT 5 MPH. DOPPLER RADAR ESTIMATED THAT RAINFALL RATES 
  FROM 2 TO 3 INCHES AN HOUR HAVE ALREADY FALLEN OVER EXTREME        
  NORTHERN JIM HOGG COUNTY.  THE HEAVIEST RAINFALL IS NOW FALLING    
  OVER THE MESQUITE CREEK AREA JUST NORTHEAST OF THE CITY OF         
  HEBBRONVILLE WHICH COULD FLOOD THE HIGHWAY 16 AREA.  

  IN ADDITION...HEAVY RAIN PRODUCING THUNDERSTORMS ARE ALSO BUILDING 
  SOUTH INTO THE NORTHERN PORTIONS OF ZAPATA COUNTY.  AS A RESULT... 
  FLASH FLOODING WILL LIKELY OCCUR IN THIS AREA THROUGH 11 AM THIS 
  MORNING AFFECTING THE SAN YGNACIO...LA PERLA...AGUILARES AND       
  MIRANDO CITY AREAS.  SOME CREEKS THAT WILL ALSO BE AFFECTED BY     
  THIS RAINFALL WILL BE DOLORES CREEK...ARROYO BURRO AND LAS OVEJAS  
  CREEK.    

* 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...HEBBRONVILLE...SAN YGNACIO...SAN PERLA....      
  AGUILARES AND MIRANDO CITY.

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 2737 9855 2727 9936 2678 9928 2681 9846

SPEECE/GUERRERO
1 follow-up statement
000 
WGUS74 KBRO 161559
FFSBRO
TXC047-247-505-161700-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
953 AM CST FRI NOV 16 2001

...FLASH FLOOD WARNINGS IN EFFECT FOR BROOKS...JIM HOGG AND ZAPATA
COUNTIES...

AT 10 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR IN BROWNSVILLE
INDICATED THAT WIDESPREAD SHOWERS AND THUNDERSTORMS ARE CONTINUING TO
PRODUCE VERY HEAVY RAINFALL OVER ZAPATA...JIM HOGG...AND BROOKS
COUNTIES. THESE STORMS ARE MOVING SLOWLY TO THE SOUTH AND HAVE A
HISTORY OF PRODUCING RAINFALL RATES FROM 3 TO 5 INCHES AN HOUR IN THE
WARNED COUNTIES...NEAR THE CITIES AND TOWNS OF SAN YGNACIO...
HEBBRONVILLE...ZAPATA AND FALFURRIAS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  KNOW YOUR
LOCATION IN RELATION TO STREAMS...RIVERS OR CREEKS THAT CAN BECOME
KILLERS IN HEAVY RAINS.  DO NOT ATTEMPT TO DRIVE THROUGH RISING
WATER.  DO NOT CROSS AREAS WHERE WATER IS FLOWING...EVEN ON FOOT.
RAPIDLY FLOWING WATER CAN QUICKLY SWEEP YOU OFF YOUR FEET.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 9:30 AM CSTFlash Flood WarningBROBrooks90 min
Nov 16, 10:27 AM CSTSpecial Marine WarningBRO63 min
Nov 16, 10:27 AM CSTSpecial Marine WarningBRO63 min
Nov 16, 10:51 AM CSTFlash Flood WarningBROHidalgo, Jim Hogg, Starr, Zapata99 min
Nov 16, 10:57 AM CSTSevere Thunderstorm WarningBROStarr63 min
Nov 16, 12:06 PM CSTSevere Thunderstorm WarningBROHidalgo54 min
Nov 16, 12:30 PM CSTFlash Flood WarningBROHidalgo, Starr3 hr
Nov 16, 12:51 PM CSTTornado WarningBROHidalgo24 min
Nov 16, 1:12 PM CSTSevere Thunderstorm WarningBROHidalgo63 min
Nov 16, 2:47 PM CSTFlash Flood WarningBROCameron, Hidalgo, Kenedy, Willacy118 min
Nov 16, 3:01 PM CSTSevere Thunderstorm WarningBROCameron59 min
Nov 16, 3:58 PM CSTSevere Thunderstorm WarningBROCameron62 min
Nov 16, 4:20 PM CSTSpecial Marine WarningBRO55 min
Nov 16, 4:20 PM CSTSpecial Marine WarningBRO55 min
Nov 16, 4:45 PM CSTFlash Flood WarningBROCameron, Willacy60 min
Nov 16, 5:07 PM CSTSpecial Marine WarningBRO68 min
Nov 16, 5:07 PM CSTSpecial Marine WarningBRO68 min
Nov 16, 5:07 PM CSTSevere Thunderstorm WarningBROCameron53 min

Nearby

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.