Alert archive / Texas / Flash Flood Warnings in 2006

Flash Flood Warning 49, NWS Austin/San Antonio, TX

June 30, 2006Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 30, 2006, 3:41 PM CDT for Val Verde County, Texas. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 30, 2006, 3:41 PM CDT (20:41 UTC)
Expired
Jun 30, 2006, 6:45 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 68 km from the middle of the area, began a volume at 20:41 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.

What was reported inside it

TimeReportWhereRemark
Jun 30, 4:00 PM CDTFLASH FLOODDel Rio, TXWIDESPREAD STREET FLOODING REPORTED BY THE PUBLIC ALONG WITH MAJOR ACCIDENT DUE TO WATER COVERED ROADWAY. INFORMATION PERTAINING TO INJURIES IS UNKNOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 8.7 hours before the alert went out and 16 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, Del Rio, TX at 12:00Z on 2006-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1999 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, Del Rio, TX at 12:00Z on 2006-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
1999 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
62 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 KEWX 302043
FFWEWX
TXC465-302345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
341 PM CDT FRI JUN 30 2006

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  VAL VERDE

* UNTIL 645 PM CDT

* AT 336 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM NUMEROUS THUNDERSTORMS OVER SOUTHERN VAL      
  VERDE COUNTY.

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER SOUTHERN VAL 
VERDE COUNTY THROUGH THE EVENING. DUE TO RAINFALL FROM EARLIER 
TODAY...ANY ADDITIONAL RAINFALL WILL QUICKLY BECOME RUNOFF.

WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED 
AREAS...ESPECIALLY AT NIGHT. 

LAT...LON 2936 10096 2917 10077 2976 10070 2975 10131

$$
5 follow-up statements
000 
WGUS74 KEWX 302116
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
413 PM CDT FRI JUN 30 2006

TXC465-302345-
VAL VERDE TX-
413 PM CDT FRI JUN 30 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR VAL
VERDE COUNTY...

AT 406 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE CITY OF 
DEL RIO AND FROM LOMA ALTA TO JUNO. RAINFALL RATES OF 2 TO 3 INCHES 
AN HOUR WERE BEING ESTIMATED BY RADAR FROM DEL RIO TO COMSTOCK. THE 
STORMS WERE DRIFTING SLOWLY SOUTHWARD.

THERE HAVE BEEN REPORTS OF STREET FLOODING IN THE CITY OF DEL RIO.

LOCATIONS IN THE WARNING INCLUDE LOMA ALTA...LAUGHLIN AFB AND DEL RIO

RUNOFF FROM HEAVY RAIN WILL FLOOD CREEKS, STREAMS, STREET
INTERSECTIONS, CULVERTS AND UNDERPASSES. LOW LYING PLACES THAT
NORMALLY FLOOD COULD BECOME DEATH TRAPS. DO NOT CROSS ANY FLOODED
AREA. TURN AROUND DONT DROWN.

LAT...LON 2937 10098 2918 10079 3024 10070 3031 10131
      2950 10127

$$
000 
WGUS74 KEWX 302145
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
437 PM CDT FRI JUN 30 2006

TXC465-302345-
VAL VERDE TX-
437 PM CDT FRI JUN 30 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR VAL
VERDE COUNTY...

AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER PORTIONS OF
VAL VERDE COUNTY. HEAVY RAINS HAVE ENDED ACROSS THE CITY OF DEL RIO.
HOWEVER THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUE BETWEEN JUNO
AND LOMA ALTA.  MOVEMENT WAS ERRATIC AT LESS THAN 10 MPH. RAINFALL
RATES WERE ESTIMATED AT 2 TO 3 INCHES AN HOUR NORTHEAST OF JUNO.

FLOODING OF LOW WATERS CROSSINGS WILL BE POSSIBLE ON FM 189.
 
LOCATIONS IN THE WARNING INCLUDE JUNO. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.

LAT...LON 2937 10098 2918 10079 3024 10070 3031 10131
      2950 10127

$$
000 
WGUS74 KEWX 302226
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
525 PM CDT FRI JUN 30 2006

TXC465-302345-
VAL VERDE TX-
525 PM CDT FRI JUN 30 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR VAL
VERDE COUNTY...

AT 519 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER NORTHERN
VAL VERDE COUNTY. THIS STORM WAS LOCATED BETWEEN PANDALE AND JUNO.
MOVEMENT WAS ERRATIC AT LESS THAN 10 MPH. RAINFALL RATES WERE
ESTIMATED AT 1 TO 2 INCHES AN HOUR.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.

LAT...LON 2991 10110 2991 10071 3026 10071 3027 10141
      3012 10139

$$
000 
WGUS74 KEWX 302255
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
553 PM CDT FRI JUN 30 2006

TXC465-302345-
VAL VERDE TX-
553 PM CDT FRI JUN 30 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR VAL
VERDE COUNTY...

AT 544 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER NORTHERN
VAL VERDE COUNTY ALONG THE COUNTY LINE. LITTLE MOVEMENT WAS INDICATED.
RAINFALL RATES WERE ESTIMATED AT 1 INCH AN HOUR.

LOCATIONS IN THE WARNING INCLUDE PANDALE.

DO NOT DRIVE WHERE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES...INCLUDING SUVS AND PICKUPS. TURN
AROUND DONT DROWN.

LAT...LON 3010 10110 3001 10073 3026 10071 3028 10167
      3006 10168

$$
000 
WGUS74 KEWX 302336
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
636 PM CDT FRI JUN 30 2006

TXC465-302346-
VAL VERDE TX-
636 PM CDT FRI JUN 30 2006

...THE FLASH FLOOD WARNING WILL EXPIRE AT 645 PM CDT FOR VAL VERDE
COUNTY...

HEAVY RAINFALL HAS ENDED ACROSS VAL VERDE COUNTY AND THE WARING
WILL BE ALLOWED TO EXPIRE.

LAT...LON 3010 10110 3001 10073 3026 10071 3028 10167
      3006 10168

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 5:08 PM CDTFlash Flood WarningEWXDimmit3 hr
Jun 30, 6:30 PM CDTFlash Flood WarningEWXReal3 hr

Nearby

Flash Flood Warnings in Texas, 2006Every flash flood warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.