Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 47, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Nov 18, 2021, 1:25 PM CST for Cameron County, Texas. It was in force for 65 min. 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
- Nov 18, 2021, 1:25 PM CST (19:25 UTC)
- Expired
- Nov 18, 2021, 2:30 PM CST
- In force
- 65 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Cameron County, TX
The radar
The Brownsville radar (KBRO), 5 km from the middle of the area, began a volume at 19:25 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 |
|---|---|---|---|
| Nov 18, 1:28 PM CST | FLASH FLOOD | Brownsville, TX | LOCAL CITY EM REPORTED WATERS FLOWING OVER THE CURB IN THE 4 CORNERS AREA (BOCA CHICA/HWY 48). ROADWAY BECOMING UNPASSABLE |
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, 7.4 hours before the alert went out and 3 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
- 2713 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
914
WGUS54 KBRO 181925
FFWBRO
TXC061-182030-
/O.NEW.KBRO.FF.W.0047.211118T1925Z-211118T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
125 PM CST Thu Nov 18 2021
The National Weather Service in Brownsville has issued a
* Flash Flood Warning for...
Southeastern Cameron County in deep south Texas...
* Until 230 PM CST.
* At 125 PM CST, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 1 and 2
inches of rain have fallen. 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...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...
Port Of Brownsville, Southmost, Cameron Park, Downtown
Brownsville, Brownsville, Lincoln Park, Rivera High School, El
Jardin Elementary School, Brownsville South Padre Island
International Airport, North Brownsville Little League, Perkins
Middle School, Villa Pancho, Gonzalez Elementary School, Lopez
High School, Southmost Elementary School, South Point, Brownsville
Public Library Southmost Branch, Besteiro Middle School,
Brownsville Fire Department Station Six and Gallegos Elementary
School.
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 2598 9751 2601 9727 2596 9722 2595 9725
2596 9728 2594 9728 2592 9733 2593 9735
2591 9737 2589 9736 2588 9737 2588 9736
2586 9738 2585 9736 2584 9739 2586 9741
2584 9741 2585 9745 2588 9746 2588 9750
FLASH FLOOD...OBSERVED
$$1 follow-up statement
488
WGUS74 KBRO 182023
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
223 PM CST Thu Nov 18 2021
TXC061-182033-
/O.EXP.KBRO.FF.W.0047.000000T0000Z-211118T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-
223 PM CST Thu Nov 18 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 230 PM CST THIS AFTERNOON FOR
SOUTHEASTERN CAMERON COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 2598 9751 2601 9727 2596 9722 2595 9725
2596 9728 2594 9728 2592 9733 2593 9735
2591 9737 2589 9736 2588 9737 2588 9736
2586 9738 2585 9736 2584 9739 2586 9741
2584 9741 2585 9745 2588 9746 2588 9750
$$The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 2:49 AM CST | Rip Current Statement | BRO | Kenedy | 33 hr |
| Nov 18, 6:44 AM CST | Special Weather Statement | BRO | Cameron | 46 min |
| Nov 18, 6:58 AM CST | Areal Flood Advisory | BRO | Cameron | 62 min |
| Nov 18, 8:11 AM CST | Special Weather Statement | BRO | Willacy | 34 min |
| Nov 18, 8:46 AM CST | Areal Flood Advisory | BRO | Cameron | 59 min |
| Nov 18, 9:49 AM CST | Areal Flood Advisory | BRO | Hidalgo, Starr | 116 min |
| Nov 18, 12:21 PM CST | Areal Flood Advisory | BRO | Cameron, Hidalgo, Willacy | 54 min |
| Nov 18, 12:32 PM CST | Areal Flood Advisory | BRO | Cameron | 58 min |
| Nov 18, 12:44 PM CST | Special Weather Statement | BRO | Cameron | 31 min |
| Nov 18, 12:54 PM CST | Areal Flood Advisory | BRO | Cameron | 51 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.