Alert archive / Texas / Flash Flood Warnings in 2017
Flash Flood Warning 3, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at May 21, 2017, 7:14 PM CDT for Zapata County, Texas. It was in force for 91 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
- May 21, 2017, 7:14 PM CDT (00:14 UTC)
- Expired
- May 21, 2017, 8:45 PM CDT
- In force
- 91 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 202 km from the middle of the area, began a volume at 00:18 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 21, 7:20 PM CDT | FLASH FLOOD | San Ygnacio, TX | ZAPATA COUNTY SHERIFFS OFFICE REPORTS MEDINA ADDITION ARROYO AND CORRALITOS AREA ARROYO FLOODED WITH WATER AND DEBRIS OVER HIGHWAY 83 IN VICINITY OF SAN YGNACIO. ALSO FLOODING IN CITY OF ZAPATA WITH WATER DEPTH UNKNOWN AT THIS TIME. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 0.2 hours before the alert went out and 215 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
- 2241 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 836 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.2
The text
As transmitted.
686
WGUS54 KBRO 220014
FFWBRO
TXC505-220145-
/O.NEW.KBRO.FF.W.0003.170522T0014Z-170522T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
714 PM CDT SUN MAY 21 2017
The National Weather Service in Brownsville has issued a
* Flash Flood Warning for...
Zapata County in Deep South Texas...
* Until 845 PM CDT
* At 712 PM CDT, Doppler radar indicated heavy rain across the warned
area. Two to three inches of rain have already fallen. An additional
2 to 3 inches could be possible across the warned area. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Zapata, Lopeno, Bustamante, Medina, New Falcon, Zapata High School,
Zapata County Fire Department, Escobas, Zapata Middle School and
Siesta Shores.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
&&
LAT...LON 2710 9943 2712 9895 2667 9901 2657 9917
2662 9918 2667 9920 2672 9921 2675 9924
2679 9924 2685 9927 2686 9929 2687 9932
2692 9933 2694 9939 2696 9939 2698 9938
2702 9942 2701 9943 2702 9944 2706 9945
$$
Brady1 follow-up statement
409
WGUS74 KBRO 220143
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
843 PM CDT SUN MAY 21 2017
TXC505-220153-
/O.EXP.KBRO.FF.W.0003.000000T0000Z-170522T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata TX-
843 PM CDT SUN MAY 21 2017
...THE FLASH FLOOD WARNING FOR ZAPATA COUNTY WILL EXPIRE AT 845 PM
CDT...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 2710 9943 2712 9895 2667 9901 2657 9917
2662 9918 2667 9920 2672 9921 2675 9924
2679 9924 2685 9927 2686 9929 2687 9932
2692 9933 2694 9939 2696 9939 2698 9938
2702 9942 2701 9943 2702 9944 2706 9945
$$
CASTILLOThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:05 PM CDT | Areal Flood Advisory | BRO | Zapata | 85 min |
| May 21, 7:11 PM CDT | Severe Thunderstorm Warning | BRO | Starr, Zapata | 64 min |
| May 21, 7:30 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Starr | 60 min |
| May 21, 7:54 PM CDT | Severe Thunderstorm Warning | BRO | Zapata | 36 min |
| May 21, 7:55 PM CDT | Areal Flood Advisory | BRO | Jim Hogg, Starr, Zapata | 95 min |
| May 21, 7:59 PM CDT | Severe Thunderstorm Warning | BRO | Starr | 31 min |
| May 21, 8:27 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo, Starr | 40 min |
| May 21, 8:38 PM CDT | Areal Flood Advisory | BRO | Starr | 82 min |
| May 21, 8:51 PM CDT | Special Weather Statement | BRO | Zapata | 39 min |
| May 21, 9:06 PM CDT | Special Weather Statement | BRO | Hidalgo | 39 min |
| May 21, 9:15 PM CDT | Areal Flood Advisory | BRO | Zapata | 90 min |
| May 21, 9:24 PM CDT | Special Weather Statement | BRO | Zapata | 51 min |
Nearby
Flash Flood Warnings in Texas, 2017Every flash flood warning in 2017
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.