Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 10, NWS Brownsville, TX

June 30, 2012Starr County, Zapata County, Texas

NWS Brownsville, TX issued this flash flood warning at Jun 30, 2012, 5:03 PM CDT for Starr County, Zapata County, Texas. It was in force for 87 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 30, 2012, 5:03 PM CDT (22:03 UTC)
Expired
Jun 30, 2012, 6:30 PM CDT
In force
87 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

Counties Starr County, TX, Zapata County, TX

The radar

The Brownsville radar (KBRO), 183 km from the middle of the area, began a volume at 22:06 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 12:00Z, 10.1 hours before the alert went out and 186 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 12:00Z on 2012-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2903 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 12:00Z on 2012-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
2903 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
784 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
80 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.

716 
WGUS54 KBRO 302203
FFWBRO
TXC427-505-302330-
/O.NEW.KBRO.FF.W.0010.120630T2203Z-120630T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
503 PM CDT SAT JUN 30 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL STARR COUNTY IN DEEP SOUTH TEXAS...
  THIS INCLUDES THE CITY OF FALCON DAM.
  SOUTH CENTRAL ZAPATA COUNTY IN DEEP SOUTH TEXAS... 
  THIS INCLUDES THE CITY OF FALCON.

* UNTIL 630 PM CDT

* AT 502 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS 
INDICATED   TORRENTIAL RAIN OF THREE TO FOUR INCHES PER HOUR HAS 
FALLEN NEAR FALCON DAM SINCE 400 PM. LAW ENFORCEMENT REPORTS WATER 
IS BEGINNING TO CROSS HIGHWAY 83 NEAR LOPENO AND WORSENING OF THESE 
CONDITIONS IS EXPECTED.

  OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...FALCON   
HEIGHTS...FRONTON...LOPENO...NEW FALCON...SALINENO AND HIGHWAY 83.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DON'T BECOME A STATISTIC. TURN AROUND...DON'T DROWN!

&&

LAT...LON 2677 9910 2672 9890 2640 9908 2640 9910
      2643 9912 2647 9910 2649 9910 2652 9913
      2653 9916 2654 9918 2661 9918 2663 9919

$$

JGG
2 follow-up statements
339 
WGUS74 KBRO 302228
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
528 PM CDT SAT JUN 30 2012

TXC427-505-302330-
/O.CON.KBRO.FF.W.0010.000000T0000Z-120630T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARR TX-ZAPATA TX-
528 PM CDT SAT JUN 30 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL ZAPATA AND
WEST CENTRAL STARR COUNTIES UNTIL 630 PM CDT...


AT 527 PM...RADAR CONTINUES TO INDICATE TORRENTIAL RAINFALL NEAR THE 
FALCON AND FALCON DAM AREAS. SIGNIFICANT FLASH FLOODING IS POSSIBLE 
NEAR THE FALCON DAM STATE PARK AND HIGHWAY 83. THIS IS A DANGEROUS 
SITUATION...TRAVEL SHOULD BE AVOIDED IN THE AREA IF AT ALL POSSIBLE.

  LOCATIONS AFFECTED INCLUDE...
  FALCON DAM.
  FALCON.


LAT...LON 2677 9910 2672 9890 2640 9908 2640 9910
      2643 9912 2647 9910 2649 9910 2652 9913
      2653 9916 2654 9918 2661 9918 2663 9919

$$

JGG
061 
WGUS74 KBRO 302327
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
627 PM CDT SAT JUN 30 2012

TXC427-505-302342-
/O.EXP.KBRO.FF.W.0010.000000T0000Z-120630T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARR TX-ZAPATA TX-
627 PM CDT SAT JUN 30 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTH CENTRAL
ZAPATA AND WEST CENTRAL STARR COUNTIES WILL BE ALLOWED TO EXPIRE AT
630 PM CDT...

THE WARNING HAS BEEN REPLACED BY A NEW FLASH FLOOD WARNING UNTIL 830 
PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DON'T BECOME A STATISTIC. TURN AROUND...DON'T DROWN!

&&

LAT...LON 2677 9910 2672 9890 2640 9908 2640 9910
      2643 9912 2647 9910 2649 9910 2652 9913
      2653 9916 2654 9918 2661 9918 2663 9919

$$

JGG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 10:00 PM CDTSmall Craft Advisory for WindsBRO6 hr
Jun 30, 11:48 AM CDTSpecial Marine WarningBRO57 min
Jun 30, 12:42 PM CDTSpecial Marine WarningBRO48 min
Jun 30, 2:09 PM CDTAreal Flood AdvisoryBROCameron66 min
Jun 30, 2:26 PM CDTAreal Flood AdvisoryBROCameron, Hidalgo94 min
Jun 30, 2:50 PM CDTFlash Flood WarningBROZapata100 min
Jun 30, 3:51 PM CDTAreal Flood AdvisoryBROCameron84 min
Jun 30, 3:54 PM CDTSevere Thunderstorm WarningBROZapata22 min
Jun 30, 4:22 PM CDTAreal Flood AdvisoryBROStarr, Zapata113 min
Jun 30, 4:37 PM CDTFlash Flood WarningBROCameron3 hr
Jun 30, 5:40 PM CDTFlash Flood WarningBROZapata110 min
Jun 30, 6:26 PM CDTFlash Flood WarningBROStarr, Zapata2 hr

Nearby

Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012

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.