Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 8, NWS Brownsville, TX

May 15, 2016Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at May 15, 2016, 1:33 PM CDT for Cameron County, Texas. It was in force for 87 min. 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: May 15, 2016, 1:33 PM CDT (18:33 UTC)
Expired: May 15, 2016, 3:00 PM CDT
In force: 87 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Flood severity: None

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 45 km from the middle of the area, began a volume at 18:35 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

Time	Report	Where	Remark
May 15, 2:00 PM CDT	HEAVY RAIN 4.06	5 Wsw Harlingen, TX	COCORAHS OBSERVER REPORTED 4.06 INCHES OF RAINFALL.

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 12:00Z, 6.6 hours before the alert went out and 48 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1794 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

676 
WGUS54 KBRO 151833
FFWBRO
TXC061-152000-
/O.NEW.KBRO.FF.W.0008.160515T1833Z-160515T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
133 PM CDT SUN MAY 15 2016

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

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

* UNTIL 300 PM CDT

* AT 133 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HARLINGEN...LA FERIA...PALM VALLEY...RANGERVILLE...PRIMERA...COMBES...
  HARLIGEN MUNICIPAL GOLF COURSE...HARLINGEN HIGH SCHOOL...HARLINGEN
  PUBLIC LIBRARY AND PALM VALLEY POLICE DEPARTMENT.

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.

KEEP CHILDREN AWAY FROM STORM DRAINS...CULVERTS...CREEKS AND STREAMS.
WATER LEVELS CAN RISE RAPIDLY AND SWEEP CHILDREN AWAY.

REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN.
ARROYOS...STREAMS...AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.

&&

LAT...LON 2629 9769 2610 9766 2607 9784 2624 9785

$$

CASTILLO

1 follow-up statement

628 
WGUS74 KBRO 151952
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
252 PM CDT SUN MAY 15 2016

TXC061-152001-
/O.EXP.KBRO.FF.W.0008.000000T0000Z-160515T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMERON TX-
252 PM CDT SUN MAY 15 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN CAMERON COUNTY WILL
EXPIRE AT 300 PM CDT...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 2629 9769 2610 9766 2607 9784 2624 9785

$$

CASTILLO

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 10:54 AM CDT	Areal Flood Advisory	BRO	Hidalgo	96 min
May 15, 11:39 AM CDT	Special Weather Statement	BRO	Hidalgo	51 min
May 15, 11:50 AM CDT	Areal Flood Advisory	BRO	Hidalgo	85 min
May 15, 11:59 AM CDT	Special Weather Statement	BRO	Starr	46 min
May 15, 12:19 PM CDT	Areal Flood Advisory	BRO	Cameron, Hidalgo	86 min
May 15, 12:23 PM CDT	Special Weather Statement	BRO	Kenedy	52 min
May 15, 12:40 PM CDT	Special Weather Statement	BRO	Jim Hogg	35 min
May 15, 12:48 PM CDT	Areal Flood Advisory	BRO	Brooks, Hidalgo, Jim Hogg, Starr	87 min
May 15, 12:59 PM CDT	Special Weather Statement	BRO	Cameron	46 min
May 15, 1:10 PM CDT	Areal Flood Advisory	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy	95 min
May 15, 1:15 PM CDT	Special Weather Statement	BRO	Willacy	45 min
May 15, 1:40 PM CDT	Areal Flood Advisory	BRO	Kenedy, Willacy	95 min
May 15, 1:50 PM CDT	Special Weather Statement	BRO	Brooks	40 min
May 15, 2:00 PM CDT	Special Weather Statement	BRO	Hidalgo	30 min
May 15, 2:24 PM CDT	Areal Flood Advisory	BRO	Hidalgo	96 min
May 15, 2:36 PM CDT	Special Weather Statement	BRO	Hidalgo	39 min
May 15, 2:48 PM CDT	Special Weather Statement	BRO	Cameron	42 min
May 15, 3:00 PM CDT	Areal Flood Advisory	BRO	Brooks, Kenedy	90 min
May 15, 3:10 PM CDT	Severe Thunderstorm Warning	BRO	Cameron	35 min
May 15, 3:16 PM CDT	Areal Flood Advisory	BRO	Cameron	89 min
May 15, 3:38 PM CDT	Special Weather Statement	BRO	Cameron	52 min
May 15, 3:55 PM CDT	Special Marine Warning	BRO		65 min
May 15, 4:05 PM CDT	Special Weather Statement	BRO	Willacy	40 min
May 15, 4:53 PM CDT	Special Marine Warning	BRO		112 min

Nearby

Flash Flood Warnings in Texas, 2016 Every 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.