Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 28, NWS Brownsville, TX

July 9, 2021Cameron County, Texas

NWS Brownsville, TX issued this flash flood warning at Jul 9, 2021, 3:41 AM CDT for Cameron County, Texas. It was in force for 6 hr. 12 reports 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: Jul 9, 2021, 3:41 AM CDT (08:41 UTC)
Expired: Jul 9, 2021, 9:36 AM CDT
In force: 6 hr
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Flood severity: None

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 20 km from the middle of the area, began a volume at 08:45 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
Jul 9, 5:51 AM CDT	FLASH FLOOD	Los Fresnos, TX	LOS FRESNOS POLICE DEPARTMENT REPORTS MORE THAN 10 STREETS IN THE CITY OF LOS FRESNOS EXPERIENCING FLOODING AT THIS TIME. FLOODWATER RISING OVER THE CURBS AND SPILLING ONTO SIDEWALKS.
Jul 9, 5:52 AM CDT	FLASH FLOOD	3 Nw Brownsville, TX	SOCIAL MEDIA VIDEO SHOWS MORRISON ROAD NEAR HOME DEPOT COVERED WITH SEVERAL INCHES OF WATER.
Jul 9, 6:00 AM CDT	FLASH FLOOD	3 W Brownsville, TX	PICTURE FROM THE PUBLIC SHOWS EAST DRIVE COMPLETELY COVERED WITH WATER.
Jul 9, 7:48 AM CDT	FLASH FLOOD	3 Nw Brownsville, TX	PUBLIC REPORTS THE RESACAS NEAR VALLEY INTERNATIONAL COUNTRY CLUB (VICC) BETWEEN COUNTRY CLUB ROAD AND LAREDO ROAD HAS OVERFLOWED ONTO PARTS OF FM 802.
Jul 9, 7:55 AM CDT	FLASH FLOOD	2 Sw Brownsville, TX	PUBLIC REPORTED APPROXIMATELY 18 INCHES OF WATER ABOVE THE WATER GUTTER LEVEL ON E MADISON STREET NEAR WASHINGTON PARK.
Jul 9, 8:00 AM CDT	FLASH FLOOD	1 Nw Brownsville, TX	PUBLIC REPORTS SEVERAL PARTS OF FRONTAGE ROAD ARE FLOODED BETWEEN BOCA CHICA BOULEVARD, EAST PRICE ROAD, AND FM 802.
Jul 9, 8:00 AM CDT	FLASH FLOOD	2 N Brownsville, TX	PUBLIC REPORTS NUMEROUS PARTS OF SEVILLE BOULEVARD, DUCK POND DRIVE, AND SEVERAL STREETS OFF DUCK POND DRIVE HAVE WATER COVERING THEM.
Jul 9, 8:27 AM CDT	FLASH FLOOD	4 Nnw Brownsville, TX	PUBLIC REPORTS NORTH FRONTAGE ROAD NEAR LORENALY DRIVE IS FLOODED WITH UNKNOWN DEPTH.
Jul 9, 8:35 AM CDT	FLASH FLOOD	3 N Brownsville, TX	PUBLIC POSTED PICTURES OF SIGNIFICANT STREET FLOODING, SOME WATER ALMOST UP TO THE BOTTOM OF MAIL BOXES, IN THE BROWNSVILLE COUNTRY CLUB AREA.
Jul 9, 8:42 AM CDT	FLASH FLOOD	3 Ese Rancho Viejo, TX	SOCIAL MEDIA VIDEO FROM THE PUBLIC SHOWS WATER HALFWAY UP WHEELS ON VEHICLES AND A COUPLE OF STALLED CARS IN THE OLMITO ESTATES NEIGHBORHOOD.
Jul 9, 9:03 AM CDT	FLASH FLOOD	1 Nw Brownsville, TX	PICTURES FROM THE PUBLIC SHOWS SIGNIFICANT FLOODING AT OLD ALICE ROAD AND PRICE ROAD WITH WATER NEARING GAS PUMPS AND BUILDINGS. ANOTHER IMAGE SHOWS SEVERAL INCHES OF WATER ALONG PRICE ROAD AND CORIA STREET.
Jul 9, 9:30 AM CDT	FLASH FLOOD	3 W Brownsville, TX	PICTURE FROM THE PUBLIC SHOWS SEVERAL WATER COVERED STREETS IN THE LA LOMITA SUBDIVISION.

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, 8.7 hours before the alert went out and 22 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: 1544 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 707 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

038 
WGUS54 KBRO 090841
FFWBRO
TXC061-091145-
/O.NEW.KBRO.FF.W.0028.210709T0841Z-210709T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
341 AM CDT Fri Jul 9 2021

The National Weather Service in Brownsville has issued a

* Flash Flood Warning for...
  Central Cameron County in deep south Texas...

* Until 645 AM CDT.

* At 341 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 2.5 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...
  Los Fresnos, Rancho Viejo, Rio Hondo, Laureles, Olmito, Cameron 
  Park, La Paloma, Downtown Brownsville, Brownsville, Resaca Middle 
  School, Los Cuates, Lopez - Riggins Elementary School, Library 
  Memorial Middle School, Los Fresnos City Offices, Rancho Viejo 
  City Hall, Los Fresnos High School, Olmito Lake, Rancho Verde 
  Elementary School, Palmer Laasko Elementary and Brownsville Sports 
  Park.

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 2602 9769 2622 9753 2620 9737 2589 9750
      2590 9750 2589 9752 2593 9755 2594 9758
      2596 9758 2596 9760 2598 9761 2599 9763
      2600 9762 2601 9765 2602 9764 2603 9764
      2602 9765 2602 9767 2604 9766

FLASH FLOOD...RADAR INDICATED

$$

BA

4 follow-up statements

727 
WGUS54 KBRO 090849 CCA
FFWBRO
TXC061-091145-
/O.COR.KBRO.FF.W.0028.210709T0841Z-210709T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning...CORRECTED
National Weather Service Brownsville TX
349 AM CDT Fri Jul 9 2021

The National Weather Service in Brownsville has issued a

* Flash Flood Warning for...
  Central Cameron County in deep south Texas...

* Until 645 AM CDT.

* At 341 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 2.5 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...
  Los Fresnos, Rancho Viejo, Rio Hondo, Laureles, Olmito, Cameron 
  Park, La Paloma, Resaca Middle School, Los Cuates, Lopez - Riggins 
  Elementary School, Library Memorial Middle School, Los Fresnos 
  City Offices, Rancho Viejo City Hall, Los Fresnos High School, 
  Olmito Lake, Rancho Verde Elementary School, and Palmer Laasko 
  Elementary.

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 2602 9769 2622 9753 2620 9737 2589 9750
      2590 9750 2589 9752 2593 9755 2594 9758
      2596 9758 2596 9760 2598 9761 2599 9763
      2600 9762 2601 9765 2602 9764 2603 9764
      2602 9765 2602 9767 2604 9766

FLASH FLOOD...RADAR INDICATED

$$

BA

567 
WGUS54 KBRO 091110
FFWBRO
TXC061-091345-
/O.EXT.KBRO.FF.W.0028.000000T0000Z-210709T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
610 AM CDT Fri Jul 9 2021

The National Weather Service in Brownsville has extended the

* Flash Flood Warning for...
  Central Cameron County in deep south Texas...

* Until 845 AM CDT.

* At 610 AM CDT, At 551 AM, local law enforcement reported multiple 
  streets flooding in Los Fresnos. Between 2 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...Law enforcement reported.

  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...
  Los Fresnos, Rancho Viejo, Rio Hondo, Laureles, Olmito, Cameron 
  Park, La Paloma, Downtown Brownsville, Brownsville, Resaca Middle 
  School, Los Cuates, Lopez - Riggins Elementary School, Library 
  Memorial Middle School, Los Fresnos City Offices, Rancho Viejo 
  City Hall, Los Fresnos High School, Olmito Lake, Rancho Verde 
  Elementary School, Palmer Laasko Elementary and Brownsville Sports 
  Park.

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.

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

&&

LAT...LON 2602 9769 2622 9753 2620 9737 2589 9750
      2590 9750 2589 9752 2593 9755 2594 9758
      2596 9758 2596 9760 2598 9761 2599 9763
      2600 9762 2601 9765 2602 9764 2603 9764
      2602 9765 2602 9767 2604 9766

FLASH FLOOD...OBSERVED

$$

BA

295 
WGUS54 KBRO 091326
FFWBRO
TXC061-091500-
/O.EXT.KBRO.FF.W.0028.000000T0000Z-210709T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
826 AM CDT Fri Jul 9 2021

The National Weather Service in Brownsville has extended the

* Flash Flood Warning for...
  Central Cameron County in deep south Texas...

* Until 1000 AM CDT.

* At 826 AM CDT, local law enforcement reported thunderstorms 
  producing heavy rain across the warned area. Between 2 and 4 
  inches of rain have fallen. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement reported, as well as several social
           media reports of flooded roads in the warning.

  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...
  Los Fresnos, Rancho Viejo, Rio Hondo, Laureles, Olmito, Cameron 
  Park, La Paloma, Downtown Brownsville, Brownsville, Resaca Middle 
  School, Los Cuates, Lopez - Riggins Elementary School, Library 
  Memorial Middle School, Los Fresnos City Offices, Rancho Viejo 
  City Hall, Los Fresnos High School, Olmito Lake, Rancho Verde 
  Elementary School, Palmer Laasko Elementary and Brownsville Sports 
  Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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

&&

LAT...LON 2602 9769 2622 9753 2620 9737 2589 9750
      2590 9750 2589 9752 2593 9755 2594 9758
      2596 9758 2596 9760 2598 9761 2599 9763
      2600 9762 2601 9765 2602 9764 2603 9764
      2602 9765 2602 9767 2604 9766

FLASH FLOOD...OBSERVED

$$

Mejia

277 
WGUS74 KBRO 091436
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
936 AM CDT Fri Jul 9 2021

TXC061-091446-
/O.CAN.KBRO.FF.W.0028.000000T0000Z-210709T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-
936 AM CDT Fri Jul 9 2021

...FLASH FLOOD WARNING FOR CENTRAL CAMERON COUNTY HAS BEEN REPLACED 
WITH A FLOOD ADVISORY...

LAT...LON 2602 9769 2622 9753 2620 9737 2589 9750
      2590 9750 2589 9752 2593 9755 2594 9758
      2596 9758 2596 9760 2598 9761 2599 9763
      2600 9762 2601 9765 2602 9764 2603 9764
      2602 9765 2602 9767 2604 9766

$$

Mejia

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 9:27 PM CDT	Areal Flood Advisory	BRO	Cameron	56 min
Jul 9, 1:47 AM CDT	Areal Flood Advisory	BRO	Cameron	118 min
Jul 9, 2:18 AM CDT	Rip Current Statement	BRO	Kenedy	17 hr
Jul 9, 4:32 AM CDT	Special Weather Statement	BRO	Cameron	43 min
Jul 9, 5:03 AM CDT	Special Weather Statement	BRO	Cameron	42 min
Jul 9, 5:08 AM CDT	Areal Flood Advisory	BRO	Cameron	2 hr
Jul 9, 5:14 AM CDT	Special Marine Warning	BRO		46 min
Jul 9, 5:22 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	38 min
Jul 9, 5:44 AM CDT	Flash Flood Warning	BRO	Cameron	4 hr
Jul 9, 5:51 AM CDT	Special Marine Warning	BRO		54 min
Jul 9, 6:05 AM CDT	Special Marine Warning	BRO		25 min
Jul 9, 6:24 AM CDT	Special Marine Warning	BRO		51 min
Jul 9, 6:47 AM CDT	Flash Flood Warning	BRO	Cameron	3 hr
Jul 9, 7:05 AM CDT	Special Marine Warning	BRO		55 min
Jul 9, 9:16 AM CDT	Small Craft Advisory	BRO		4 hr
Jul 9, 9:36 AM CDT	Areal Flood Advisory	BRO	Cameron	4 hr
Jul 9, 9:39 AM CDT	Areal Flood Advisory	BRO	Cameron	4 hr
Jul 9, 9:42 AM CDT	Areal Flood Advisory	BRO	Cameron	4 hr
Jul 9, 2:57 PM CDT	Special Weather Statement	BRO	Hidalgo	48 min
Jul 9, 3:36 PM CDT	Areal Flood Advisory	BRO	Cameron	26 min
Jul 9, 3:40 PM CDT	Areal Flood Advisory	BRO	Cameron	13 min
Jul 9, 3:44 PM CDT	Flash Flood Warning	BRO	Cameron	2 hr
Jul 9, 3:52 PM CDT	Flash Flood Warning	BRO	Cameron	42 min
Jul 9, 4:23 PM CDT	Flash Flood Warning	BRO	Cameron	2 hr
Jul 9, 4:59 PM CDT	Areal Flood Advisory	BRO	Willacy	51 min
Jul 9, 5:09 PM CDT	Special Weather Statement	BRO	Brooks	51 min
Jul 9, 5:10 PM CDT	Special Weather Statement	BRO	Kenedy	50 min
Jul 9, 5:45 PM CDT	Areal Flood Advisory	BRO	Cameron	51 min
Jul 9, 5:59 PM CDT	Special Weather Statement	BRO	Kleberg	16 min
Jul 9, 6:01 PM CDT	Special Weather Statement	BRO	Kenedy	14 min
Jul 9, 6:09 PM CDT	Areal Flood Advisory	BRO	Kenedy, Willacy	51 min

Nearby

Flash Flood Warnings in Texas, 2021 Every 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.