Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 49, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 18, 2021, 9:52 AM CDT for Edwards County, Real County, Texas. It was in force for 4 hr. 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
- Aug 18, 2021, 9:52 AM CDT (14:52 UTC)
- Expired
- Aug 18, 2021, 1:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Edwards County, TX, Real County, TX
The radar
The Laughlin AFB radar (KDFX), 72 km from the middle of the area, began a volume at 14:53 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 |
|---|---|---|---|
| Aug 18, 12:00 PM CDT | FLASH FLOOD | 4 N Barksdale, TX | FM 335 FLOODED AND CLOSED NEAR THE NUECES RIVER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 2.9 hours before the alert went out and 97 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
- 1507 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
131
WGUS54 KEWX 181452
FFWEWX
TXC137-385-181730-
/O.NEW.KEWX.FF.W.0049.210818T1452Z-210818T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
952 AM CDT Wed Aug 18 2021
The National Weather Service in Austin/San Antonio has issued a
* Flash Flood Warning for...
Southeastern Edwards County in south central Texas...
Northwestern Real County in south central Texas...
* Until 1230 PM CDT.
* At 952 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Vance.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 2975 10002 2970 10010 2975 10015 2986 10013
2994 10005 3009 9997 3010 9990 3003 9991
2991 9996 2976 10001
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...1-3 INCHES IN 1 HOUR
$$
RUNYEN3 follow-up statements
166
WGUS74 KEWX 181646
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
1146 AM CDT Wed Aug 18 2021
TXC137-385-181730-
/O.CON.KEWX.FF.W.0049.000000T0000Z-210818T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edwards TX-Real TX-
1146 AM CDT Wed Aug 18 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT THIS
AFTERNOON FOR SOUTHEASTERN EDWARDS AND NORTHWESTERN REAL COUNTIES...
At 1146 AM CDT, Doppler radar indicated earlier thunderstorms
produced heavy rain across the warned area. Between 2 and 5 inches
of rain have been estimated to have fallen by radar. Flash flooding
is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Rural southeast Edwards and western Real counties.
This includes the following streams and drainages...
Cedar Creek, Little Hackberry Creek, Nueces River, Pulliam Creek,
and Bullhead Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 2975 10002 2970 10010 2975 10015 2986 10013
2994 10005 3009 9997 3010 9990 3003 9991
2991 9996 2976 10001
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
RUNYEN438
WGUS54 KEWX 181723
FFWEWX
TXC137-385-181830-
/O.EXT.KEWX.FF.W.0049.000000T0000Z-210818T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1223 PM CDT Wed Aug 18 2021
The National Weather Service in Austin/San Antonio has extended the
* Flash Flood Warning for...
Southeastern Edwards County in south central Texas...
Northwestern Real County in south central Texas...
* Until 130 PM CDT.
* At 1223 PM CDT, Local law enforcement reported flash flooding
across the warned area. F.M. 335 is flooded near the Nueces River
north of Barksdale. Between 2 and 5 inches of rain have fallen.
HAZARD...Life threatening flash flooding. Heavy rain producing
flash flooding.
SOURCE...Law enforcement.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Rural southeast Edwards and western Real counties.
This includes the following streams and drainages...
Cedar Creek, Little Hackberry Creek, Nueces River, Pulliam Creek,
and Bullhead Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 2975 10002 2970 10010 2975 10015 2986 10013
2994 10005 3009 9997 3010 9990 3003 9991
2991 9996 2976 10001
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
RUNYEN589
WGUS74 KEWX 181826
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
126 PM CDT Wed Aug 18 2021
TXC137-385-181836-
/O.EXP.KEWX.FF.W.0049.000000T0000Z-210818T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edwards TX-Real TX-
126 PM CDT Wed Aug 18 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 130 PM CDT THIS AFTERNOON FOR
SOUTHEASTERN EDWARDS AND NORTHWESTERN REAL COUNTIES...
Flood waters are beginning to receded and the heavy rain has ended.
Please continue to heed remaining road closures.
LAT...LON 2975 10002 2970 10010 2975 10015 2986 10013
2994 10005 3009 9997 3010 9990 3003 9991
2991 9996 2976 10001
$$
RUNYENThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:40 AM CDT | Areal Flood Advisory | EWX | Edwards, Real | 72 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.