Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 34, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Jul 21, 2021, 2:44 PM CDT for Cameron County, Texas. It was in force for 63 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 21, 2021, 2:44 PM CDT (19:44 UTC)
- Expired
- Jul 21, 2021, 3:47 PM CDT
- In force
- 63 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Cameron County, TX
The radar
The Brownsville radar (KBRO), 34 km from the middle of the area, began a volume at 19:47 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 12:00Z, 7.7 hours before the alert went out and 36 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
- 2566 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 692 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
138
WGUS54 KBRO 211944
FFWBRO
TXC061-212130-
/O.NEW.KBRO.FF.W.0034.210721T1944Z-210721T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
244 PM CDT Wed Jul 21 2021
The National Weather Service in Brownsville has issued a
* Flash Flood Warning for...
Northwestern Cameron County in deep south Texas...
* Until 430 PM CDT.
* At 244 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 2 to 3 inches in 1
hour. Additional rainfall amounts of 2 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...
Harlingen, San Benito, Rio Hondo, Palm Valley, La Paloma,
Brownsville, Primera, Combes, Treasure Hills Golf Club, Treasure
Hills Elementary School, Harlingen Soccer Complex, San Benito
Veterans Memorial Academy, Mccullough Park, Valley Baptist Medical
Center Harlingen, San Benito Police Department, South Texas
Academy Of Medical Technology, Harlingen Fire Department,
Harlingen Medical Center, San Benito High School and San Benito
Library.
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 2603 9768 2617 9777 2628 9775 2631 9768
2631 9763 2630 9753 2631 9753 2631 9752
2627 9751 2623 9758 2600 9756 2602 9764
2603 9764 2602 9765 2603 9766 2604 9766
2603 9767
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR
$$
Bogorad1 follow-up statement
457
WGUS74 KBRO 212047
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
347 PM CDT Wed Jul 21 2021
TXC061-212057-
/O.CAN.KBRO.FF.W.0034.000000T0000Z-210721T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-
347 PM CDT Wed Jul 21 2021
...FLASH FLOOD WARNING FOR NORTHWESTERN CAMERON COUNTY HAS BEEN
REPLACED WITH A FLOOD ADVISORY...
Flood waters have begun to recede as the heavy rain is moving out of
the warned area. Flooding is no longer expected to pose a threat.
Please continue to heed any road closures.
LAT...LON 2603 9768 2617 9777 2628 9775 2631 9768
2631 9763 2630 9753 2631 9753 2631 9752
2627 9751 2623 9758 2600 9756 2602 9764
2603 9764 2602 9765 2603 9766 2604 9766
2603 9767
$$
BogoradThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 7:26 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 34 min |
| Jul 20, 7:56 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 34 min |
| Jul 20, 8:03 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 57 min |
| Jul 21, 12:02 PM CDT | Special Weather Statement | BRO | Cameron | 43 min |
| Jul 21, 12:28 PM CDT | Special Weather Statement | BRO | Cameron | 47 min |
| Jul 21, 1:15 PM CDT | Special Weather Statement | BRO | Starr | 45 min |
| Jul 21, 1:16 PM CDT | Areal Flood Advisory | BRO | Cameron | 119 min |
| Jul 21, 1:31 PM CDT | Special Weather Statement | BRO | Starr | 44 min |
| Jul 21, 1:48 PM CDT | Special Weather Statement | BRO | Starr | 42 min |
| Jul 21, 2:00 PM CDT | Special Weather Statement | BRO | Hidalgo | 45 min |
| Jul 21, 2:05 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 115 min |
| Jul 21, 2:25 PM CDT | Special Weather Statement | BRO | Starr | 35 min |
| Jul 21, 2:37 PM CDT | Areal Flood Advisory | BRO | Cameron | 7 min |
| Jul 21, 2:44 PM CDT | Special Weather Statement | BRO | Hidalgo | 31 min |
| Jul 21, 2:56 PM CDT | Areal Flood Advisory | BRO | Cameron, Hidalgo | 5 hr |
| Jul 21, 2:59 PM CDT | Special Weather Statement | BRO | Starr | 31 min |
| Jul 21, 3:22 PM CDT | Special Weather Statement | BRO | Kenedy | 23 min |
| Jul 21, 3:39 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 111 min |
| Jul 21, 3:53 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 52 min |
| Jul 21, 4:15 PM CDT | Flash Flood Warning | BRO | Hidalgo | 105 min |
| Jul 21, 4:27 PM CDT | Areal Flood Advisory | BRO | Brooks | 63 min |
| Jul 21, 4:40 PM CDT | Areal Flood Advisory | BRO | Cameron | 110 min |
| Jul 21, 4:56 PM CDT | Special Weather Statement | BRO | Cameron | 49 min |
| Jul 21, 5:31 PM CDT | Areal Flood Advisory | BRO | Cameron | 89 min |
| Jul 21, 5:40 PM CDT | Special Weather Statement | BRO | Cameron | 50 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.