Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 21, NWS Brownsville, TX

June 3, 2021Hidalgo County, Texas

NWS Brownsville, TX issued this flash flood warning at Jun 3, 2021, 10:55 PM CDT for Hidalgo 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
Jun 3, 2021, 10:55 PM CDT (03:55 UTC)
Expired
Jun 4, 2021, 1:00 AM CDT
In force
2 hr
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Flood severity
None

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 81 km from the middle of the area, began a volume at 03:54 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
Jun 3, 11:23 PM CDTFLOODMission, TXMULTIPLE REPORTS OF STREET CLOSURES DUE TO FLOODING IN MISSION. RELAYED BY CITY OF MISSION SOCIAL MEDIA.

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, 3.9 hours before the alert went out and 83 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 2021-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1629 joules per kilogram.LCLEL10008507005003002001001 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 2021-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
1629 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

675 
WGUS54 KBRO 040355
FFWBRO
TXC215-040600-
/O.NEW.KBRO.FF.W.0021.210604T0355Z-210604T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
1055 PM CDT Thu Jun 3 2021

The National Weather Service in Brownsville has issued a

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

* Until 100 AM CDT.

* At 1055 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  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...
  Mission, Pharr, Weslaco, San Juan, Alamo, Donna, Mercedes, 
  Hidalgo, Progreso, Palmview, Palmhurst, South McAllen, North 
  McAllen, Sharyland, Alton, Austin Middle School, Carman Elementary 
  School, Mayfield Park and San Juan City Hall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 2631 9843 2622 9787 2607 9786 2607 9803
      2604 9807 2604 9808 2605 9807 2607 9808
      2607 9813 2605 9815 2607 9818 2606 9820
      2607 9825 2610 9829 2612 9827 2610 9831
      2617 9834 2616 9839 2620 9844

FLASH FLOOD...RADAR INDICATED

$$

Speece
2 follow-up statements
946 
WGUS74 KBRO 040506
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
1206 AM CDT Fri Jun 4 2021

TXC215-040600-
/O.CON.KBRO.FF.W.0021.000000T0000Z-210604T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
1206 AM CDT Fri Jun 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 AM CDT EARLY THIS 
MORNING FOR SOUTHERN HIDALGO COUNTY...

At 1206 AM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 2 and 4 inches of rain 
have fallen. Additional rainfall amounts of 1 to 2 inches are 
possible in the warned area. Flash flooding is ongoing or expected 
to begin shortly. Additionally, City of Mission personnel reported 
numerous road closures in the city of Mission due to flooding.

HAZARD...Flash flooding caused by thunderstorms.

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...
  Mission, Pharr, Harlingen, Weslaco, San Juan, Alamo, Donna, 
  Mercedes, Hidalgo, Progreso, Palmview, Palmhurst, South McAllen, 
  North McAllen, Sharyland, Alton, Austin Middle School, Carman 
  Elementary School, Mayfield Park and San Juan City Hall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 2631 9843 2622 9787 2607 9786 2607 9803
      2604 9807 2604 9808 2605 9807 2607 9808
      2607 9813 2605 9815 2607 9818 2606 9820
      2607 9825 2610 9829 2612 9827 2610 9831
      2617 9834 2616 9839 2620 9844

FLASH FLOOD...RADAR INDICATED

$$

Tomaselli
197 
WGUS74 KBRO 040555
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
1255 AM CDT Fri Jun 4 2021

TXC215-040605-
/O.EXP.KBRO.FF.W.0021.000000T0000Z-210604T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
1255 AM CDT Fri Jun 4 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1 AM CDT EARLY THIS MORNING 
FOR SOUTHERN HIDALGO COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

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

LAT...LON 2631 9843 2622 9787 2607 9786 2607 9803
      2604 9807 2604 9808 2605 9807 2607 9808
      2607 9813 2605 9815 2607 9818 2606 9820
      2607 9825 2610 9829 2612 9827 2610 9831
      2617 9834 2616 9839 2620 9844

$$

Tomaselli

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:07 PM CDTSevere Thunderstorm WarningBROStarr25 min
Jun 3, 7:23 PM CDTSpecial Weather StatementBROBrooks52 min
Jun 3, 7:31 PM CDTFlash Flood WarningBROBrooks, Jim Hogg, Starr, Zapata3 hr
Jun 3, 7:39 PM CDTSpecial Weather StatementBROStarr51 min
Jun 3, 7:58 PM CDTSpecial Marine WarningBRO32 min
Jun 3, 8:03 PM CDTSevere Thunderstorm WarningBROStarr57 min
Jun 3, 8:50 PM CDTFlash Flood WarningBROStarr3 hr
Jun 3, 9:04 PM CDTSpecial Weather StatementBROStarr56 min
Jun 3, 9:53 PM CDTSpecial Weather StatementBROHidalgo52 min
Jun 3, 10:03 PM CDTAreal Flood AdvisoryBROHidalgo117 min
Jun 3, 10:49 PM CDTSpecial Weather StatementBROCameron56 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.