Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 4, NWS Brownsville, TX

April 12, 2015Starr County, Texas

NWS Brownsville, TX issued this flash flood warning at Apr 12, 2015, 10:27 PM CDT for Starr 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
Apr 12, 2015, 10:27 PM CDT (03:27 UTC)
Expired
Apr 13, 2015, 1:00 AM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

County Starr County, TX

The radar

The Brownsville radar (KBRO), 139 km from the middle of the area, began a volume at 03:30 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, 3.5 hours before the alert went out and 141 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 2015-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2009 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 00:00Z on 2015-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.19395878Sfc1 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
2009 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.7

Open this sounding in Storm Lab

The text

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

205 
WGUS54 KBRO 130327
FFWBRO
TXC427-130600-
/O.NEW.KBRO.FF.W.0004.150413T0327Z-150413T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1027 PM CDT SUN APR 12 2015

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN STARR COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 100 AM CDT
    
* AT 1025 PM CDT...THUNDERSTORMS THAT ARE EXPECTED TO PRODUCE AT 
  LEAST TWO TO THREE INCHES OF RAINFALL IN LESS THAN AN HOUR WERE 
  MOVING INTO SOUTHEASTERN STARR COUNTY...WHERE THE GROUND IS 
  ALREADY SATURATED FROM PREVIOUS HEAVY RAINFALL. THIS WILL CAUSE 
  FLASH FLOODING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... RIO GRANDE 
  CITY...LA ROSITA...LA GRULLA...ESCOBARES... GARCIASVILLE..SANTA 
  CRUZ...LOS ALVAREZ...ALTO BONITO....LA VICTORIA...LA 
  PUERTA...LOS GARZAS...AND HIGHWAY 83.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2626 9868 2627 9872 2628 9870 2629 9871
      2630 9875 2631 9875 2631 9874 2633 9875
      2633 9879 2637 9880 2635 9890 2639 9893
      2637 9895 2641 9897 2651 9846 2626 9858
      2625 9862 2626 9862 2624 9863 2623 9867

$$

JGG
2 follow-up statements
893 
WGUS74 KBRO 130434
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1134 PM CDT SUN APR 12 2015

TXC427-130600-
/O.CON.KBRO.FF.W.0004.000000T0000Z-150413T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARR TX-
1134 PM CDT SUN APR 12 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
SOUTHEASTERN STARR COUNTY...

AT 1133 PM CDT...THE HEAVIEST RAINFALL HAS ENDED BUT RADAR INDICATES 
THAT UP TO THREE INCHES OF RAIN HAS FALLEN OVER SOUTHEASTERN STARR 
COUNTY. AND LIGHT TO MODERATE RAINFALL WILL LIKELY CONTINUE FOR 
SEVERAL HOURS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
RIO GRANDE CITY...LA ROSITA...STARR COUNTY SHERIFFS OFFICE...RIO
GRANDE CITY FIRE DEPARTMENT...RIO GRANDE CITY LIBRARY...RINGGOLD
MIDDLE SCHOOL...SULLIVAN CITY...LA GRULLA...ESCOBARES...
GARCIASVILLE...RIO GRANDE CITY--ROMA...SANTA CRUZ...LOS ALVAREZ...
ALTO BONITO...RIO GRANDE CITY MUNICIPAL AIRPORT...LA VICTORIA...
GRULLA MIDDLE SCHOOL...LA PUERTA...STARR COUNTY MEMORIAL HOSPITAL AND
LOS GARZAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2626 9868 2627 9872 2628 9870 2629 9871
      2630 9875 2631 9875 2631 9874 2633 9875
      2633 9879 2637 9880 2635 9890 2639 9893
      2637 9895 2641 9897 2651 9846 2626 9858
      2625 9862 2626 9862 2624 9863 2623 9867

$$

JGG
819 
WGUS74 KBRO 130606
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
106 AM CDT MON APR 13 2015

TXC427-130613-
/O.EXP.KBRO.FF.W.0004.000000T0000Z-150413T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARR TX-
106 AM CDT MON APR 13 2015

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN STARR COUNTY HAS
EXPIRED...

THE HEAVY RAIN THAT AFFECTED SOUTHEASTERN STARR COUNTY EARLIER 
THIS EVENING HAS ENDED AND ANY FLOOD WATERS HAVE STARTED TO 
RECEDED. HOWEVER PLEASE CONTINUE TO HEED ANY ROAD CLOSURES. 

LAT...LON 2626 9868 2627 9872 2628 9870 2629 9871
      2630 9875 2631 9875 2631 9874 2633 9875
      2633 9879 2637 9880 2635 9890 2639 9893
      2637 9895 2641 9897 2651 9846 2626 9858
      2625 9862 2626 9862 2624 9863 2623 9867

$$

SPEECE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 8:17 PM CDTSpecial Weather StatementBROZapata58 min
Apr 12, 8:33 PM CDTSevere Thunderstorm WarningBROJim Hogg, Starr, Zapata57 min
Apr 12, 9:08 PM CDTTornado WarningBROZapata22 min
Apr 12, 9:32 PM CDTSevere Thunderstorm WarningBROBrooks, Jim Hogg, Starr, Zapata58 min
Apr 12, 9:37 PM CDTAreal Flood AdvisoryBROJim Hogg, Starr, Zapata113 min
Apr 12, 10:28 PM CDTSevere Thunderstorm WarningBROBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 1 more62 min
Apr 12, 10:37 PM CDTSpecial Marine WarningBRO113 min
Apr 12, 10:45 PM CDTFlash Flood WarningBROHidalgo3 hr
Apr 12, 11:00 PM CDTAreal Flood AdvisoryBROBrooks3 hr
Apr 12, 11:29 PM CDTSevere Thunderstorm WarningBROCameron, Hidalgo, Kenedy, Willacy61 min
Apr 13, 12:12 AM CDTAreal Flood AdvisoryBROCameron2 hr
Apr 13, 12:23 AM CDTSpecial Marine WarningBRO67 min
Apr 13, 12:38 AM CDTSpecial Weather StatementBROCameron37 min
Apr 13, 1:26 AM CDTSpecial Marine WarningBRO49 min
Apr 13, 1:43 AM CDTFlash Flood WarningBROHidalgo2 hr
Apr 13, 2:03 AM CDTSpecial Weather StatementBROWillacy42 min
Apr 13, 2:14 AM CDTSpecial Marine WarningBRO46 min
Apr 13, 3:08 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy3 hr
Apr 13, 3:36 AM CDTSpecial Weather StatementBROCameron54 min
Apr 13, 3:59 AM CDTSpecial Marine WarningBRO61 min
Apr 13, 4:11 AM CDTSevere Thunderstorm WarningBROCameron34 min
Apr 13, 4:43 AM CDTSpecial Marine WarningBRO32 min
Apr 13, 4:51 AM CDTSevere Thunderstorm WarningBROCameron39 min
Apr 13, 9:15 AM CDTSpecial Marine WarningBRO60 min
Apr 13, 2:27 PM CDTSpecial Weather StatementBROZapata48 min
Apr 13, 3:13 PM CDTSpecial Weather StatementBROZapata47 min
Apr 13, 3:22 PM CDTSevere Thunderstorm WarningBROZapata38 min
Apr 13, 3:57 PM CDTSevere Thunderstorm WarningBROZapata48 min
Apr 13, 4:55 PM CDTSpecial Weather StatementBROJim Hogg50 min

Nearby

Flash Flood Warnings in Texas, 2015Every flash flood warning in 2015

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.