Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 27, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Jul 7, 2021, 7:10 PM CDT for Hidalgo County, Starr County, Texas. It was in force for 47 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 7, 2021, 7:10 PM CDT (00:10 UTC)
- Expired
- Jul 7, 2021, 7:57 PM CDT
- In force
- 47 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hidalgo County, TX, Starr County, TX
The radar
The Brownsville radar (KBRO), 124 km from the middle of the area, began a volume at 00:12 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, 0.2 hours before the alert went out and 127 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.
- Mixed-layer CAPE
- 209 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
510
WGUS54 KBRO 080010
FFWBRO
TXC215-427-080315-
/O.NEW.KBRO.FF.W.0027.210708T0010Z-210708T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
710 PM CDT Wed Jul 7 2021
The National Weather Service in Brownsville has issued a
* Flash Flood Warning for...
West Central Hidalgo County in deep south Texas...
East Central Starr County in deep south Texas...
* Until 1015 PM CDT.
* At 710 PM 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 0.5 to 1.5 inches in 1
hour. 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 showers and thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, and streets as well as other poor drainage and
low-lying areas.
* Some locations that will experience flash flooding include...
mainly rural areas of West Central Hidalgo and East Central Starr
Counties
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 2651 9848 2657 9852 2660 9845 2661 9840
2660 9833 2649 9840
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1.5 INCHES IN 1 HOUR
$$
Hallman2 follow-up statements
514
WGUS74 KBRO 080040
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
740 PM CDT Wed Jul 7 2021
TXC215-427-080315-
/O.CON.KBRO.FF.W.0027.000000T0000Z-210708T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-Starr TX-
740 PM CDT Wed Jul 7 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT THIS
EVENING FOR WEST CENTRAL HIDALGO AND EAST CENTRAL STARR COUNTIES...
At 740 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 4 inches of rain have
fallen. The expected rainfall rate is 0.5 inches in 1 hour.
Additional rainfall amounts up to 1 inch are possible in the warned
area. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
and streets as well as other poor drainage and low-lying
areas.
Some locations that will experience flash flooding include...
mainly rural areas of West Central Hidalgo and East Central Starr
Counties
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 2651 9848 2657 9852 2660 9845 2661 9840
2660 9833 2649 9840
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5 INCHES IN 1 HOUR
$$
Hallman349
WGUS74 KBRO 080057
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
757 PM CDT Wed Jul 7 2021
TXC215-427-080107-
/O.CAN.KBRO.FF.W.0027.000000T0000Z-210708T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hidalgo TX-Starr TX-
757 PM CDT Wed Jul 7 2021
...FLASH FLOOD WARNING IS CANCELLED FOR WEST CENTRAL HIDALGO AND
EAST CENTRAL STARR COUNTIES...
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 Friday for a
portion of Deep South Texas.
LAT...LON 2651 9848 2657 9852 2660 9845 2661 9840
2660 9833 2649 9840
$$
HallmanThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:25 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 46 min |
| Jul 8, 12:49 AM CDT | Areal Flood Advisory | BRO | Starr | 2 hr |
| Jul 8, 4:00 AM CDT | Rip Current Statement | BRO | Kenedy | 15 hr |
| Jul 8, 10:25 AM CDT | Small Craft Advisory | BRO | 10 hr | |
| Jul 8, 4:35 PM CDT | Special Weather Statement | BRO | Cameron | 40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.