Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 9, NWS Brownsville, TX

August 29, 2014Kenedy County, Texas

NWS Brownsville, TX issued this flash flood warning at Aug 29, 2014, 4:52 AM CDT for Kenedy County, Texas. It was in force for 98 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
Aug 29, 2014, 4:52 AM CDT (09:52 UTC)
Expired
Aug 29, 2014, 6:30 AM CDT
In force
98 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

County Kenedy County, TX

The radar

The Brownsville radar (KBRO), 97 km from the middle of the area, began a volume at 09:51 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

Brownsville Intl, TX (KBRO), launched 00:00Z, 9.9 hours before the alert went out and 99 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 2014-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2236 joules per kilogram.LCLEL10008507005003002001001 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 2014-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
2236 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
81 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.

877 
WGUS54 KBRO 290952
FFWBRO
TXC261-291130-
/O.NEW.KBRO.FF.W.0009.140829T0952Z-140829T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
452 AM CDT FRI AUG 29 2014

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN KENEDY COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 630 AM CDT

* AT 451 AM CDT...THUNDERSTORMS HAVE PRODUCED A LARGE AREA OF THREE 
TO FOUR INCHES OF RAIN SINCE 200 AM IN SOUTHERN KENEDY COUNTY. LOCAL 
MAXIMUMS NEAR NORIAS ARE AS HIGH AS SIX TO SEVEN INCHES OF RAIN. 
THIS WILL CAUSE SIGNIFICANT WATER RISES IN SOUTHERN KENEDY COUNTY 
AND MAY RESULT IN DANGEROUS FLOWING WATER OVER HIGHWAY 77 NEAR 
NORIAS AND ARMSTRONG.

* LOCATIONS IN THE WARNING INCLUDE NORIAS AND HIGHWAY 77.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A LIFE THREATENING FLOOD! MOST FLOOD DEATHS OCCUR IN
AUTOMOBILES. STAY HOME. IF TRAVELING...DO NOT CROSS FLOODED ROADWAYS
OR STREAMS. WHEN NEARING A FLOOD AREA...TURN AROUND AND DRIVE TO
HIGHER TERRAIN.

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

&&

LAT...LON 2662 9744 2675 9797 2697 9797 2685 9755
      2682 9753 2684 9751 2682 9752 2679 9749
      2682 9745 2678 9746 2680 9747 2679 9747
      2677 9746 2677 9747 2675 9745

$$

JGG
2 follow-up statements
384 
WGUS74 KBRO 291104
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
604 AM CDT FRI AUG 29 2014

TXC261-291130-
/O.CON.KBRO.FF.W.0009.000000T0000Z-140829T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENEDY TX-
604 AM CDT FRI AUG 29 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN KENEDY COUNTY
UNTIL 630 AM CDT...

AT 603 AM CDT...THE HEAVIEST RAINFALL HAS ENDED FOR NOW OVER KENEDY 
COUNTY. HOWEVER RADAR INDICATES FOUR TO SEVEN INCHES OF RAINFALL 
FELL BETWEEN 330 AND 600 AM AND FLASH FLOODING REMAINS POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.

   LOCATIONS IN THE WARNING INCLUDE...NORIAS AND HIGHWAY 77.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A LIFE THREATENING FLOOD! MOST FLOOD DEATHS OCCUR IN
AUTOMOBILES. STAY HOME. IF TRAVELING...DO NOT CROSS FLOODED ROADWAYS
OR STREAMS. WHEN NEARING A FLOOD AREA...TURN AROUND AND DRIVE TO
HIGHER TERRAIN.

&&

LAT...LON 2662 9744 2675 9797 2697 9797 2685 9755
      2682 9753 2684 9751 2682 9752 2679 9749
      2682 9745 2678 9746 2680 9747 2679 9747
      2677 9746 2677 9747 2675 9745

$$

JGG
117 
WGUS74 KBRO 291123
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
623 AM CDT FRI AUG 29 2014

TXC261-291138-
/O.EXP.KBRO.FF.W.0009.000000T0000Z-140829T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENEDY TX-
623 AM CDT FRI AUG 29 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN KENEDY
COUNTY WILL BE ALLOWED TO EXPIRE AT 630 AM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2662 9744 2675 9797 2697 9797 2685 9755
      2682 9753 2684 9751 2682 9752 2679 9749
      2682 9745 2678 9746 2680 9747 2679 9747
      2677 9746 2677 9747 2675 9745

$$

JGG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 12:33 AM CDTAreal Flood AdvisoryBROWillacy57 min
Aug 29, 3:23 AM CDTAreal Flood AdvisoryBROKenedy82 min
Aug 29, 4:26 AM CDTAreal Flood AdvisoryBROKenedy94 min
Aug 29, 5:35 AM CDTSpecial Marine WarningBRO55 min
Aug 29, 5:45 AM CDTAreal Flood AdvisoryBROBrooks, Kenedy90 min
Aug 29, 6:25 AM CDTSpecial Marine WarningBRO95 min
Aug 29, 4:53 PM CDTAreal Flood AdvisoryBROHidalgo67 min
Aug 29, 5:45 PM CDTAreal Flood AdvisoryBROHidalgo60 min
Aug 29, 6:40 PM CDTAreal Flood AdvisoryBROCameron, Hidalgo65 min

Nearby

Flash Flood Warnings in Texas, 2014Every flash flood warning in 2014

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.