Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 21, NWS Brownsville, TX

May 15, 2015Brooks County, Texas

NWS Brownsville, TX issued this flash flood warning at May 15, 2015, 1:17 PM CDT for Brooks County, Texas. It was in force for 118 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: May 15, 2015, 1:17 PM CDT (18:17 UTC)
Expired: May 15, 2015, 3:15 PM CDT
In force: 118 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Flood severity: None

County Brooks County, TX

The radar

The Corpus Christi radar (KCRP), 86 km from the middle of the area, began a volume at 18:20 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

Corpus Christi, TX (KCRP), launched 12:00Z, 6.3 hours before the alert went out and 94 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: 1947 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

454 
WGUS54 KBRO 151817
FFWBRO
TXC047-152015-
/O.NEW.KBRO.FF.W.0021.150515T1817Z-150515T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
117 PM CDT FRI MAY 15 2015

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN BROOKS COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 315 PM CDT

* AT 115 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE 
  WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN TO THE 
  IMMEDIATE NORTH OF FALFURRIAS AND FLASH FLOODING IS EXPECTED TO 
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FALFURRIAS...LA COLONIA PARK...FALFURRIAS FIRE STATION...FALFURRIAS
  JUNIOR HIGH SCHOOL...AIRPORT ROAD ADDITION...PLEASANT PARK...BROOKS
  COUNTY AIRPORT...FLOWELLA...CANTU ADDITION AND BROOKS COUNTY
  DETENTION CENTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 2726 9799 2714 9799 2714 9826 2726 9826

$$

MILLER

1 follow-up statement

369 
WGUS74 KBRO 152015
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
315 PM CDT FRI MAY 15 2015

TXC047-152024-
/O.EXP.KBRO.FF.W.0021.000000T0000Z-150515T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROOKS TX-
315 PM CDT FRI MAY 15 2015

...THE FLASH FLOOD WARNING FOR NORTHEASTERN BROOKS COUNTY WILL EXPIRE
AT 315 PM CDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
AN IMMEDIATE THREAT.

LAT...LON 2726 9799 2714 9799 2714 9826 2726 9826

$$

MILLER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 11:54 AM CDT	Areal Flood Advisory	BRO	Brooks	3 hr
May 15, 12:19 PM CDT	Flash Flood Watch	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy, Starr, Zapata	7 hr
May 15, 12:57 PM CDT	Special Weather Statement	BRO	Brooks	48 min
May 15, 1:26 PM CDT	Special Weather Statement	BRO	Kleberg	49 min
May 15, 1:43 PM CDT	Special Marine Warning	BRO		92 min
May 15, 1:57 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Kenedy	48 min
May 15, 2:06 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Kenedy, Willacy	114 min
May 15, 2:19 PM CDT	Tornado Warning	BRO	Hidalgo, Kenedy, Willacy	26 min
May 15, 2:30 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Kenedy	30 min
May 15, 2:35 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo	25 min
May 15, 2:39 PM CDT	Flash Flood Warning	BRO	Hidalgo, Kenedy	111 min
May 15, 2:57 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Kenedy	33 min
May 15, 2:58 PM CDT	Special Marine Warning	BRO		92 min
May 15, 2:58 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo	32 min
May 15, 3:03 PM CDT	Tornado Warning	BRO	Kenedy	42 min
May 15, 3:15 PM CDT	Flash Flood Warning	BRO	Brooks, Hidalgo, Kenedy, Willacy	2 hr
May 15, 4:00 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo	30 min
May 15, 4:25 PM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Willacy	50 min
May 15, 4:48 PM CDT	Flash Flood Warning	BRO	Hidalgo	2 hr
May 15, 5:20 PM CDT	Areal Flood Warning	BRO	Hidalgo, Kenedy, Willacy	6 hr
May 15, 5:28 PM CDT	Special Weather Statement	BRO	Cameron, Willacy	47 min
May 15, 5:58 PM CDT	Areal Flood Advisory	BRO	Willacy	2 hr
May 15, 6:02 PM CDT	Special Marine Warning	BRO		118 min
May 15, 6:29 PM CDT	Special Weather Statement	BRO	Willacy	46 min
May 15, 6:37 PM CDT	Areal Flood Advisory	BRO	Hidalgo	113 min

Nearby

Flash Flood Warnings in Texas, 2015 Every 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.