Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 4, NWS Brownsville, TX

April 18, 2016Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Apr 18, 2016, 10:45 PM CDT for Cameron County, Texas. It was in force for 2 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
Apr 18, 2016, 10:45 PM CDT (03:45 UTC)
Expired
Apr 19, 2016, 12:45 AM CDT
In force
2 hr
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 6 km from the middle of the area, began a volume at 03:47 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
Apr 18, 10:58 PM CDTFLASH FLOODBrownsville, TXBROWNSVILLE POLICE REPORTED WATER COVERING NUMEROUS ROADS WITH CARS BEING STUCK IN FLOOD WATERS...INCLUDING PORTIONS OF PALM...BOCA CHICA...ALTON GLOOR AND EXPRESSWAY 77.

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

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 00:00Z, 3.8 hours before the alert went out and 8 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 2016-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1260 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 2016-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1260 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted.

643 
WGUS54 KBRO 190345
FFWBRO
TXC061-190545-
/O.NEW.KBRO.FF.W.0004.160419T0345Z-160419T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1045 PM CDT MON APR 18 2016

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL CAMERON COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 1245 AM CDT

* AT 1044 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LOS FRESNOS...RANCHO VIEJO...LAURELES...DOWNTOWN BROWNSVILLE...CAMERON
  PARK...SOUTHMOST...OLMITO...BROWNSVILLE...LINCOLN PARK AND SAMS
  MEMORIAL STADIUM.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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

&&

LAT...LON 2586 9741 2584 9741 2585 9745 2588 9746
      2588 9750 2590 9750 2589 9752 2592 9753
      2594 9758 2596 9758 2599 9763 2600 9762
      2601 9764 2610 9762 2614 9731 2592 9734
      2593 9734 2591 9737 2589 9736 2584 9737

$$

CASTILLO
1 follow-up statement
718 
WGUS74 KBRO 190501
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1201 AM CDT TUE APR 19 2016

TXC061-190545-
/O.CON.KBRO.FF.W.0004.000000T0000Z-160419T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMERON TX-
1201 AM CDT TUE APR 19 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
SOUTH CENTRAL CAMERON COUNTY...

AT 1155 PM CDT...LOCAL LAW ENFORCEMENT REPORTED AREAS OF FLASH
FLOODING IN THE CITY OF BROWNSVILLE. FROM TWO TO THREE INCHES OF
RAIN HAVE ALREADY FALLEN OVER THE BROWNSVILLE AREA. FLASH FLOODING
IS OCCURRING IN SECTIONS OF THE CITY.

BROWNSVILLE POLICE REPORTED WATER COVERING NUMEROUS ROADS WITH CARS
BEING STUCK IN FLOOD WATERS...INCLUDING PORTIONS OF PALM BLVD...
BOCA CHICA BLVD...ALTON GLOOR AND EXPRESSWAY 77. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BROWNSVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 2586 9741 2584 9741 2585 9745 2588 9746
      2588 9750 2590 9750 2589 9752 2592 9753
      2594 9758 2596 9758 2599 9763 2600 9762
      2601 9764 2610 9762 2614 9731 2592 9734
      2593 9734 2591 9737 2589 9736 2584 9737

$$

60

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 7:21 PM CDTFlash Flood WarningBROStarr114 min
Apr 18, 7:28 PM CDTSpecial Weather StatementBROStarr32 min
Apr 18, 7:43 PM CDTSpecial Weather StatementBROHidalgo47 min
Apr 18, 7:46 PM CDTSevere Thunderstorm WarningBROHidalgo, Starr59 min
Apr 18, 7:56 PM CDTAreal Flood AdvisoryBROHidalgo94 min
Apr 18, 8:07 PM CDTSpecial Marine WarningBRO113 min
Apr 18, 8:18 PM CDTSpecial Weather StatementBROCameron57 min
Apr 18, 8:34 PM CDTSpecial Weather StatementBROWillacy41 min
Apr 18, 8:40 PM CDTSevere Thunderstorm WarningBROCameron1 min
Apr 18, 8:45 PM CDTSevere Thunderstorm WarningBROCameron45 min
Apr 18, 8:56 PM CDTSpecial Weather StatementBROHidalgo49 min
Apr 18, 9:28 PM CDTSpecial Weather StatementBROZapata47 min
Apr 18, 9:29 PM CDTSpecial Weather StatementBROCameron46 min
Apr 18, 9:34 PM CDTSevere Thunderstorm WarningBROZapata56 min
Apr 18, 9:50 PM CDTSpecial Weather StatementBROCameron40 min
Apr 18, 9:57 PM CDTAreal Flood AdvisoryBROCameron93 min
Apr 18, 10:05 PM CDTSpecial Weather StatementBROZapata40 min
Apr 18, 10:14 PM CDTSevere Thunderstorm WarningBROCameron31 min
Apr 18, 10:14 PM CDTSevere Thunderstorm WarningBROZapata38 min
Apr 18, 10:22 PM CDTAreal Flood AdvisoryBROCameron83 min
Apr 18, 10:46 PM CDTSevere Thunderstorm WarningBROCameron44 min
Apr 18, 11:22 PM CDTSpecial Marine WarningBRO53 min
Apr 18, 11:56 PM CDTSpecial Weather StatementBROZapata34 min
Apr 19, 1:19 AM CDTSpecial Weather StatementBROCameron41 min
Apr 19, 2:08 AM CDTSpecial Marine WarningBRO37 min

Nearby

Flash Flood Warnings in Texas, 2016Every flash flood warning in 2016

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.