Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 9, NWS Brownsville, TX

May 19, 2021Hidalgo County, Texas

NWS Brownsville, TX issued this flash flood warning at May 19, 2021, 10:18 AM CDT for Hidalgo County, Texas. It was in force for 5 hr. 4 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: May 19, 2021, 10:18 AM CDT (15:18 UTC)
Expired: May 19, 2021, 3:08 PM CDT
In force: 5 hr
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Flood severity: None

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 62 km from the middle of the area, began a volume at 15:22 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 19, 12:11 PM CDT	FLASH FLOOD	1 Nnw Weslaco, TX	FLOOD WATERS UP TO THE TOP OF CAR WHEEL WELLS.
May 19, 12:29 PM CDT	FLOOD	1 Nnw Weslaco, TX	FRONTAGE ROAD NEAR TEXAS BLVD FLOODED. REPORT RECEIVED VIA SOCIAL MEDIA.
May 19, 1:00 PM CDT	FLASH FLOOD	1 Nw Weslaco, TX	MAJOR STREET FLOODING WITH AT LEAST 3 FEET OF WATER DEPTH.
May 19, 1:30 PM CDT	FLOOD	Donna, TX	STREET FLOODING ONGOING IN DONNA.

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, 3.3 hours before the alert went out and 65 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: 3667 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

As transmitted.

090 
WGUS54 KBRO 191518
FFWBRO
TXC215-191830-
/O.NEW.KBRO.FF.W.0009.210519T1518Z-210519T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
1018 AM CDT Wed May 19 2021

The National Weather Service in Brownsville has issued a

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

* Until 130 PM CDT.

* At 1018 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. The expected rainfall rate is 0.5 to 1.5 inches in 1 
  hour. Additional rainfall amounts of 1.5 to 3 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...
  Weslaco, Donna, Mercedes, Progreso, Edcouch, Weslaco Public 
  Library, Weslaco Fire Department Station Two, Weslaco City Hall, 
  Isaac D. Rodriguez Park, Black Elementary School, Harlon Block 
  Sports Complex, Alameda Park, Knapp Medical Center, Sam Houston 
  Elementary School, Weslaco City Park, Weslaco High School, Weslaco 
  East High School, Villa Verde, Weslaco Border Patrol Station and 
  Weslaco Fire Department Station One.

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 2631 9797 2616 9789 2606 9790 2606 9793
      2605 9794 2606 9795 2605 9797 2607 9798
      2606 9801 2607 9803 2604 9804 2605 9806
      2604 9808 2605 9807 2607 9808 2606 9809
      2607 9811 2614 9809 2629 9800

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1.5 INCHES IN 1 HOUR

$$

Hallman

5 follow-up statements

093 
WGUS74 KBRO 191557
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
1057 AM CDT Wed May 19 2021

TXC215-191830-
/O.CON.KBRO.FF.W.0009.000000T0000Z-210519T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
1057 AM CDT Wed May 19 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM CDT THIS 
AFTERNOON FOR SOUTHEASTERN HIDALGO COUNTY...

At 1057 AM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 2 and 4 inches of rain 
have fallen. The expected rainfall rate is 0.25 to 0.75 inches in 1 
hour. Additional rainfall amounts of 0.5 to 1.5 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...
  Weslaco, Donna, Mercedes, Progreso, Edcouch, Weslaco Public 
  Library, Weslaco Fire Department Station Two, Weslaco City Hall, 
  Isaac D. Rodriguez Park, Black Elementary School, Harlon Block 
  Sports Complex, Alameda Park, Knapp Medical Center, Sam Houston 
  Elementary School, Weslaco City Park, Weslaco High School, Weslaco 
  East High School, Villa Verde, Weslaco Border Patrol Station and 
  Weslaco Fire Department Station One.

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 2631 9797 2616 9789 2606 9790 2606 9793
      2605 9794 2606 9795 2605 9797 2607 9798
      2606 9801 2607 9803 2604 9804 2605 9806
      2604 9808 2605 9807 2607 9808 2606 9809
      2607 9811 2614 9809 2629 9800

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25-0.75 INCHES IN 1 HOUR

$$

Hallman

887 
WGUS74 KBRO 191804
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
104 PM CDT Wed May 19 2021

TXC215-191830-
/O.CON.KBRO.FF.W.0009.000000T0000Z-210519T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
104 PM CDT Wed May 19 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM CDT THIS 
AFTERNOON FOR SOUTHEASTERN HIDALGO COUNTY...

At 104 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 5 inches of rain have 
fallen. The expected rainfall rate is 0.25 inches in 1 hour. 
Additional rainfall amounts up to 1 inch 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...
  Weslaco, Donna, Mercedes, Progreso, Edcouch, Weslaco Public 
  Library, Weslaco Fire Department Station Two, Weslaco City Hall, 
  Isaac D. Rodriguez Park, Black Elementary School, Harlon Block 
  Sports Complex, Alameda Park, Knapp Medical Center, Sam Houston 
  Elementary School, Weslaco City Park, Weslaco High School, Weslaco 
  East High School, Villa Verde, Weslaco Border Patrol Station and 
  Weslaco Fire Department Station One.

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 2631 9797 2616 9789 2606 9790 2606 9793
      2605 9794 2606 9795 2605 9797 2607 9798
      2606 9801 2607 9803 2604 9804 2605 9806
      2604 9808 2605 9807 2607 9808 2606 9809
      2607 9811 2614 9809 2629 9800

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25 INCHES IN 1 HOUR

$$

Hallman

254 
WGUS54 KBRO 191805
FFWBRO
TXC215-191915-
/O.EXT.KBRO.FF.W.0009.000000T0000Z-210519T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
105 PM CDT Wed May 19 2021

The National Weather Service in Brownsville has extended the

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

* Until 215 PM CDT.

* At 105 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 5 inches of rain 
  have fallen. The expected rainfall rate is 0.25 inches in 1 hour. 
  Additional rainfall amounts up to 1 inch 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...
  Weslaco, Donna, Mercedes, Progreso, Edcouch, Weslaco Public 
  Library, Weslaco Fire Department Station Two, Weslaco City Hall, 
  Isaac D. Rodriguez Park, Black Elementary School, Harlon Block 
  Sports Complex, Alameda Park, Knapp Medical Center, Sam Houston 
  Elementary School, Weslaco City Park, Weslaco High School, Weslaco 
  East High School, Villa Verde, Weslaco Border Patrol Station and 
  Weslaco Fire Department Station One.

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 2631 9797 2616 9789 2606 9790 2606 9793
      2605 9794 2606 9795 2605 9797 2607 9798
      2606 9801 2607 9803 2604 9804 2605 9806
      2604 9808 2605 9807 2607 9808 2606 9809
      2607 9811 2614 9809 2629 9800

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25 INCHES IN 1 HOUR

$$

Hallman

307 
WGUS54 KBRO 191856
FFWBRO
TXC215-192115-
/O.EXT.KBRO.FF.W.0009.000000T0000Z-210519T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
156 PM CDT Wed May 19 2021

The National Weather Service in Brownsville has extended the

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

* Until 415 PM CDT.

* At 156 PM CDT, Emergency management reported thunderstorms 
  producing heavy rain across the warned area. Between 2 and 5 
  inches of rain have fallen. Additional rainfall amounts up to 1 
  inch are possible in the warned area. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management 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...
  Weslaco, Donna, Mercedes, Progreso, Edcouch, Weslaco Public 
  Library, Weslaco Fire Department Station Two, Weslaco City Hall, 
  Isaac D. Rodriguez Park, Black Elementary School, Harlon Block 
  Sports Complex, Alameda Park, Knapp Medical Center, Sam Houston 
  Elementary School, Weslaco City Park, Weslaco High School, Weslaco 
  East High School, Villa Verde, Weslaco Border Patrol Station and 
  Weslaco Fire Department Station One.

Emergency management reports heavy flooding along the interstate and 
pump operations ongoing south of Weslaco.

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 2631 9797 2616 9789 2606 9790 2606 9793
      2605 9794 2606 9795 2605 9797 2607 9798
      2606 9801 2607 9803 2604 9804 2605 9806
      2604 9808 2605 9807 2607 9808 2606 9809
      2607 9811 2614 9809 2629 9800

FLASH FLOOD...OBSERVED

$$

Hallman

755 
WGUS74 KBRO 192008
FFSBRO

Flash Flood Statement
National Weather Service Brownsville TX
308 PM CDT Wed May 19 2021

TXC215-192018-
/O.CAN.KBRO.FF.W.0009.000000T0000Z-210519T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-
308 PM CDT Wed May 19 2021

...FLASH FLOOD WARNING FOR SOUTHEASTERN HIDALGO COUNTY HAS BEEN 
REPLACED WITH A FLOOD WARNING...

Heavy rainfall has ended across the warned area. 

LAT...LON 2604 9807 2607 9808 2607 9809 2606 9809
      2607 9811 2615 9804 2621 9802 2621 9792
      2616 9789 2606 9790 2606 9793 2605 9794
      2606 9795 2605 9797 2607 9798 2606 9801
      2607 9803 2604 9804 2605 9806

$$

Hallman

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 3:30 AM CDT	Rip Current Statement	BRO	Kenedy	16 hr
May 19, 4:58 AM CDT	Special Weather Statement	BRO	Jim Hogg	32 min
May 19, 5:50 AM CDT	Special Weather Statement	BRO	Jim Hogg	40 min
May 19, 5:56 AM CDT	Special Weather Statement	BRO	Zapata	34 min
May 19, 6:03 AM CDT	Special Weather Statement	BRO	Starr	42 min
May 19, 6:27 AM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg, Zapata	33 min
May 19, 6:32 AM CDT	Areal Flood Advisory	BRO	Jim Hogg, Starr, Zapata	7 hr
May 19, 6:51 AM CDT	Severe Thunderstorm Warning	BRO	Starr	39 min
May 19, 7:11 AM CDT	Flash Flood Warning	BRO	Starr, Zapata	2 hr
May 19, 7:11 AM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	64 min
May 19, 7:12 AM CDT	Flash Flood Warning	BRO	Jim Hogg, Zapata	3 hr
May 19, 7:17 AM CDT	Flash Flood Warning	BRO	Jim Hogg	3 hr
May 19, 7:25 AM CDT	Areal Flood Advisory	BRO	Starr	6 hr
May 19, 7:27 AM CDT	Areal Flood Advisory	BRO	Jim Hogg, Zapata	4 hr
May 19, 7:27 AM CDT	Severe Thunderstorm Warning	BRO	Starr, Zapata	63 min
May 19, 7:34 AM CDT	Special Weather Statement	BRO	Jim Hogg	56 min
May 19, 7:42 AM CDT	Areal Flood Advisory	BRO	Kenedy	6 hr
May 19, 7:47 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Hidalgo, Jim Hogg, Starr	43 min
May 19, 7:51 AM CDT	Tornado Warning	BRO	Brooks, Hidalgo, Starr	24 min
May 19, 8:12 AM CDT	Tornado Warning	BRO	Hidalgo	18 min
May 19, 8:15 AM CDT	Areal Flood Advisory	BRO	Hidalgo	5 hr
May 19, 8:17 AM CDT	Areal Flood Advisory	BRO	Starr	5 hr
May 19, 8:21 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 1 more	39 min
May 19, 8:23 AM CDT	Special Marine Warning	BRO		26 min
May 19, 8:26 AM CDT	Flash Flood Warning	BRO	Jim Hogg	113 min
May 19, 8:29 AM CDT	Areal Flood Advisory	BRO	Brooks, Jim Hogg	5 hr
May 19, 8:34 AM CDT	Areal Flood Advisory	BRO	Hidalgo	7 hr
May 19, 8:42 AM CDT	Areal Flood Advisory	BRO	Brooks, Kenedy	5 hr
May 19, 8:47 AM CDT	Tornado Warning	BRO	Brooks	13 min
May 19, 8:58 AM CDT	Severe Thunderstorm Warning	BRO	Brooks, Cameron, Hidalgo, Kenedy, Willacy	47 min
May 19, 9:04 AM CDT	Areal Flood Advisory	BRO	Cameron, Hidalgo, Kenedy, Willacy	7 hr
May 19, 9:05 AM CDT	Tornado Warning	BRO	Kenedy, Willacy	10 min
May 19, 9:11 AM CDT	Tornado Warning	BRO	Kenedy, Willacy	19 min
May 19, 9:14 AM CDT	Special Marine Warning	BRO		61 min
May 19, 9:21 AM CDT	Areal Flood Advisory	BRO	Kenedy	5 hr
May 19, 9:27 AM CDT	Special Marine Warning	BRO		63 min
May 19, 9:28 AM CDT	Tornado Warning	BRO	Kenedy	17 min
May 19, 9:43 AM CDT	Special Weather Statement	BRO	Cameron, Kenedy, Willacy	47 min
May 19, 9:44 AM CDT	Tornado Warning	BRO	Willacy	16 min
May 19, 9:48 AM CDT	Flash Flood Warning	BRO	Hidalgo	4 hr
May 19, 9:48 AM CDT	Special Marine Warning	BRO		57 min
May 19, 9:50 AM CDT	Flash Flood Warning	BRO	Hidalgo	4 hr
May 19, 10:10 AM CDT	Special Marine Warning	BRO		65 min
May 19, 10:10 AM CDT	Special Weather Statement	BRO	Hidalgo	50 min
May 19, 10:11 AM CDT	Areal Flood Advisory	BRO	Cameron, Willacy	7 hr
May 19, 10:15 AM CDT	Flash Flood Warning	BRO	Hidalgo, Willacy	4 hr
May 19, 10:21 AM CDT	Flash Flood Warning	BRO	Willacy	5 hr
May 19, 10:24 AM CDT	Flash Flood Warning	BRO	Cameron, Hidalgo, Willacy	5 hr
May 19, 10:27 AM CDT	Flash Flood Warning	BRO	Cameron	4 hr
May 19, 10:28 AM CDT	Special Weather Statement	BRO	Cameron, Willacy	47 min
May 19, 10:29 AM CDT	Flash Flood Warning	BRO	Cameron, Hidalgo	4 hr
May 19, 10:29 AM CDT	Special Marine Warning	BRO		46 min
May 19, 10:42 AM CDT	Special Marine Warning	BRO		48 min
May 19, 10:51 AM CDT	Special Marine Warning	BRO		39 min
May 19, 11:00 AM CDT	Flash Flood Warning	BRO	Cameron, Willacy	5 hr
May 19, 11:06 AM CDT	Special Marine Warning	BRO		24 min
May 19, 11:12 AM CDT	Special Marine Warning	BRO		18 min
May 19, 11:21 AM CDT	Special Weather Statement	BRO	Cameron	24 min
May 19, 11:25 AM CDT	Special Marine Warning	BRO		50 min
May 19, 11:30 AM CDT	Flash Flood Warning	BRO	Cameron	5 hr
May 19, 11:34 AM CDT	Areal Flood Advisory	BRO	Cameron	3 hr
May 19, 12:10 PM CDT	Special Marine Warning	BRO		50 min
May 19, 12:15 PM CDT	Flash Flood Warning	BRO	Cameron	4 hr
May 19, 2:38 PM CDT	Coastal Flood Advisory	BRO	Kenedy	6 hr
May 19, 2:41 PM CDT	Flash Flood Warning	BRO	Cameron	112 min
May 19, 2:59 PM CDT	Areal Flood Warning	BRO	Cameron	6 hr
May 19, 3:08 PM CDT	Areal Flood Warning	BRO	Hidalgo	19 hr
May 19, 4:36 PM CDT	Wind Advisory	BRO	Cameron	102 min
May 19, 6:20 PM CDT	Small Craft Advisory	BRO		15 hr

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.