Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 24, NWS Brownsville, TX

July 6, 2021Hidalgo County, Texas

NWS Brownsville, TX issued this flash flood warning at Jul 6, 2021, 9:27 PM CDT for Hidalgo County, Texas. It was in force for 108 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
Jul 6, 2021, 9:27 PM CDT (02:27 UTC)
Expired
Jul 6, 2021, 11:15 PM CDT
In force
108 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 75 km from the middle of the area, began a volume at 02:29 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, 2.5 hours before the alert went out and 78 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 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 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
136 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
828 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

316 
WGUS54 KBRO 070227
FFWBRO
TXC215-070415-
/O.NEW.KBRO.FF.W.0024.210707T0227Z-210707T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
927 PM CDT Tue Jul 6 2021

The National Weather Service in Brownsville has issued a

* Flash Flood Warning for...
  Southeastern Hidalgo County in deep south Texas...

* Until 1115 PM CDT.

* At 927 PM CDT, Doppler radar indicated heavy rain across the 
  warned area. Between 1 and 2 inches of rain have fallen on top of 
  what has fallen earlier today. Additional rainfall amounts of 1 to 
  3 inches are possible in the warned area. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Elsa, Edcouch, La Blanca, San Carlos, San Carlos Elementary 
  School, Elsa Public Library, Muniz, Elsa Police Department, Lyndon 
  B Johnson Elementary School, Carlos Truan Junior High School, 
  Edcouch-Elsa High School, Nurillo, Los Lagos Golf Course, Edcouch 
  City Hall, Edcouch Police Department, Edcouch Volunteer Fire 
  Department, Satiago Garcia Elementary School, North Alamo, Mcallen 
  and Audie Murphy Middle School.

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 2637 9799 2630 9795 2620 9812 2628 9814

FLASH FLOOD...RADAR INDICATED

$$

Mejia
1 follow-up statement
519 
WGUS74 KBRO 070406
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
1106 PM CDT Tue Jul 6 2021

TXC215-070416-
/O.EXP.KBRO.FF.W.0024.000000T0000Z-210707T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
1106 PM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1115 PM CDT THIS EVENING FOR 
SOUTHEASTERN HIDALGO COUNTY...

The heavy rain has ended. Please continue to heed remaining road 
closures.

A Flash Flood Watch remains in effect until 700 PM CDT Thursday for 
a portion of Deep South Texas.

LAT...LON 2637 9799 2630 9795 2620 9812 2628 9814

$$

Mejia

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:25 PM CDTAreal Flood AdvisoryBROStarr, Zapata74 min
Jul 6, 8:29 PM CDTAreal Flood AdvisoryBROHidalgo102 min
Jul 6, 8:35 PM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy4 hr
Jul 6, 9:00 PM CDTFlash Flood WarningBROWillacy3 hr
Jul 6, 10:00 PM CDTAreal Flood AdvisoryBROHidalgo, Kenedy, Starr, Willacy3 hr
Jul 6, 10:35 PM CDTAreal Flood AdvisoryBROCameron115 min
Jul 6, 10:50 PM CDTFlash Flood WarningBROHidalgo, Starr115 min
Jul 6, 11:01 PM CDTFlash Flood WarningBROCameron82 min
Jul 7, 12:27 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy4 hr
Jul 7, 12:33 AM CDTAreal Flood AdvisoryBROCameron3 hr
Jul 7, 12:43 AM CDTAreal Flood AdvisoryBROHidalgo3 hr
Jul 7, 1:50 AM CDTSpecial Marine WarningBRO25 min
Jul 7, 2:28 AM CDTSpecial Marine WarningBRO62 min
Jul 7, 3:13 AM CDTAreal Flood AdvisoryBROHidalgo3 hr
Jul 7, 3:22 AM CDTSpecial Marine WarningBRO53 min
Jul 7, 3:57 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy11 hr
Jul 7, 3:59 AM CDTAreal Flood AdvisoryBROHidalgo, Starr5 hr
Jul 7, 5:53 AM CDTAreal Flood AdvisoryBROHidalgo9 hr
Jul 7, 8:59 AM CDTAreal Flood AdvisoryBROHidalgo3 hr
Jul 7, 11:43 AM CDTSpecial Weather StatementBROCameron47 min
Jul 7, 12:10 PM CDTAreal Flood AdvisoryBROCameron3 hr
Jul 7, 2:19 PM CDTSpecial Marine WarningBRO41 min
Jul 7, 2:56 PM CDTSpecial Marine WarningBRO34 min
Jul 7, 3:03 PM CDTSpecial Marine WarningBRO42 min
Jul 7, 3:59 PM CDTSpecial Marine WarningBRO31 min
Jul 7, 4:48 PM CDTSpecial Marine WarningBRO27 min
Jul 7, 6:46 PM CDTAreal Flood AdvisoryBROHidalgo, Starr2 hr

Nearby

Flash Flood Warnings in Texas, 2021Every flash flood warning in 2021

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.