Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 64, NWS Austin/San Antonio, TX

October 14, 2021DeWitt County, Karnes County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 14, 2021, 6:27 AM CDT for DeWitt County, Karnes County, Lavaca County, Texas. It was in force for 6 hr. 3 reports 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: Oct 14, 2021, 6:27 AM CDT (11:27 UTC)
Expired: Oct 14, 2021, 12:13 PM CDT
In force: 6 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties DeWitt County, TX, Karnes County, TX, Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 90 km from the middle of the area, began a volume at 11:26 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
Oct 14, 9:45 AM CDT	FLASH FLOOD	1 Ese Moulton, TX	TXDOT REPORTS FM 532 LAVACA RIVER IN MOULTON TX IS CLOSED DUE TO FLOODING.
Oct 14, 10:00 AM CDT	FLASH FLOOD	Cuero, TX	THE TXDOT DRIVETEXAS.ORG WEBSITE SHOWS FM1447 NORTHEAST OF CUERO AS HAVING LOW WATER CROSSINGS THAT ARE FLOODED. IN ADDITION FM 766 NORTH OF TOWN IS ALSO FLOODED IN SPOTS.
Oct 14, 10:15 AM CDT	FLASH FLOOD	7 Ssw Gillett, TX	THE TXDOT DRIVETEXAS.ORG WEBSITE SHOWS HIGHWAY 80 CLOSED DUE TO FLOODING FROM HELENA TO GILLETT.

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, 11.5 hours before the alert went out and 152 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1651 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 867 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

As transmitted.

905 
WGUS54 KEWX 141127
FFWEWX
TXC123-255-285-141730-
/O.NEW.KEWX.FF.W.0064.211014T1127Z-211014T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
627 AM CDT Thu Oct 14 2021

The National Weather Service in Austin/San Antonio has issued a

* Flash Flood Warning for...
  DeWitt County in south central Texas...
  Karnes County in south central Texas...
  Lavaca County in south central Texas...

* Until 1230 PM CDT Thursday.

* At 627 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain. Between 1 and 2 inches of rain have fallen. Additional 
  rainfall amounts of 1 to 2 inches are possible. 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...
  Cuero, Yoakum, Kenedy, Karnes City, Hallettsville, Yorktown, 
  Shiner, Moulton, Runge, Falls City, Nordheim, Westhoff, Hochheim, 
  Thomaston, Gillett, Ezzell, Cestohowa, Sublime, Speaks and 
  Concrete.

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 2867 9778 2872 9792 2869 9801 2888 9819
      2922 9773 2911 9761 2938 9724 2958 9720
      2963 9714 2963 9687 2934 9656 2906 9694
      2910 9698 2886 9731 2893 9742

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

ZEITLER/MORRIS

3 follow-up statements

462 
WGUS74 KEWX 141403
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
903 AM CDT Thu Oct 14 2021

TXC123-255-285-141730-
/O.CON.KEWX.FF.W.0064.000000T0000Z-211014T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DeWitt TX-Karnes TX-Lavaca TX-
903 AM CDT Thu Oct 14 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT THIS 
AFTERNOON FOR DEWITT, KARNES AND LAVACA COUNTIES...

At 903 AM CDT, Gauge reports indicated thunderstorms producing heavy 
rain in the area. Between 2 and 5 inches of rain have fallen. 
Additional rainfall amounts of 0.5 to 1 inch are possible. Flash 
flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Gauges 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...
  Cuero, Yoakum, Kenedy, Karnes City, Hallettsville, Yorktown, 
  Shiner, Moulton, Runge, Falls City, Nordheim, Westhoff, Hochheim, 
  Thomaston, Gillett, Ezzell, Cestohowa, Sublime, Speaks and 
  Concrete.

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 2867 9778 2872 9792 2869 9801 2888 9819
      2922 9773 2911 9761 2938 9724 2958 9720
      2963 9714 2963 9687 2934 9656 2906 9694
      2910 9698 2886 9731 2893 9742

FLASH FLOOD...GAUGE INDICATED

$$

MORRIS

982 
WGUS74 KEWX 141547
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
1047 AM CDT Thu Oct 14 2021

TXC123-255-285-141730-
/O.CON.KEWX.FF.W.0064.000000T0000Z-211014T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DeWitt TX-Karnes TX-Lavaca TX-
1047 AM CDT Thu Oct 14 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT THIS 
AFTERNOON FOR DEWITT, KARNES AND LAVACA COUNTIES...

At 1047 AM CDT, Gauge reports indicated thunderstorms produced heavy 
rain in the area. Between 3 and 7 inches of rain have fallen. Flash 
flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Gauges 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...
  Cuero, Yoakum, Kenedy, Karnes City, Hallettsville, Yorktown, 
  Shiner, Moulton, Runge, Falls City, Nordheim, Westhoff, Hochheim, 
  Thomaston, Gillett, Ezzell, Cestohowa, Sublime, Speaks and 
  Concrete.

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 2867 9778 2872 9792 2869 9801 2888 9819
      2922 9773 2911 9761 2938 9724 2958 9720
      2963 9714 2963 9687 2934 9656 2906 9694
      2910 9698 2886 9731 2893 9742

FLASH FLOOD...GAUGE INDICATED

$$

MORRIS

072 
WGUS74 KEWX 141713
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
1213 PM CDT Thu Oct 14 2021

TXC123-255-285-141723-
/O.CAN.KEWX.FF.W.0064.000000T0000Z-211014T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DeWitt TX-Karnes TX-Lavaca TX-
1213 PM CDT Thu Oct 14 2021

...FLASH FLOOD WARNING IS CANCELLED FOR DEWITT, KARNES AND LAVACA 
COUNTIES...

Flood waters have receded quite a bit, however, some low lying spots 
may continue to be flooded until later today. Please continue to 
heed remaining road closures, and if you come across substantial 
water over the road, Turn Around, Don't Drown.

LAT...LON 2867 9778 2872 9792 2869 9801 2888 9819
      2922 9773 2911 9761 2938 9724 2958 9720
      2963 9714 2963 9687 2934 9656 2906 9694
      2910 9698 2886 9731 2893 9742

$$

ZEITLER

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 13, 7:44 PM CDT	Special Weather Statement	EWX	Kendall	46 min
Oct 13, 7:53 PM CDT	Areal Flood Advisory	EWX	Bandera, Kendall, Kerr	3 hr
Oct 13, 8:05 PM CDT	Tornado Warning	EWX	Blanco, Comal, Kendall	25 min
Oct 13, 8:21 PM CDT	Special Weather Statement	EWX	Williamson	39 min
Oct 13, 8:28 PM CDT	Special Weather Statement	EWX	Comal, Hays	47 min
Oct 13, 8:35 PM CDT	Areal Flood Advisory	EWX	Blanco	3 hr
Oct 13, 8:55 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Blanco, Kendall	6 hr
Oct 13, 9:25 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Hays	3 hr
Oct 13, 9:49 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Bexar, Comal	3 hr
Oct 13, 9:55 PM CDT	Areal Flood Advisory	EWX	Travis	3 hr
Oct 13, 10:24 PM CDT	Areal Flood Advisory	EWX	Williamson	3 hr
Oct 13, 10:38 PM CDT	Areal Flood Advisory	EWX	Hays, Travis	3 hr
Oct 13, 10:52 PM CDT	River Flood Warning	EWX	Blanco, Hays	3 hr
Oct 13, 11:00 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Hays	6 hr
Oct 13, 11:49 PM CDT	Areal Flood Advisory	EWX	Bastrop, Travis, Williamson	4 hr
Oct 13, 11:59 PM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe	4 hr
Oct 14, 12:46 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Caldwell, Comal, Guadalupe, Hays	10 hr
Oct 14, 12:57 AM CDT	River Flood Warning	EWX	Hays	4 hr
Oct 14, 1:04 AM CDT	Flash Flood Warning	EWX	Bexar, Comal	4 hr
Oct 14, 1:11 AM CDT	Areal Flood Advisory	EWX	Caldwell, Gonzales, Guadalupe, Wilson	3 hr
Oct 14, 1:50 AM CDT	River Flood Warning	EWX	Comal, Guadalupe	7 hr
Oct 14, 2:04 AM CDT	Special Weather Statement	EWX	Gonzales	41 min
Oct 14, 2:39 AM CDT	Special Weather Statement	EWX	Gonzales	51 min
Oct 14, 2:48 AM CDT	Tornado Warning	EWX	Gonzales, Lavaca	27 min
Oct 14, 3:11 AM CDT	River Flood Warning	EWX	Comal, Guadalupe	4 hr
Oct 14, 3:17 AM CDT	Areal Flood Advisory	EWX	Bastrop, Fayette, Lee	3 hr
Oct 14, 3:19 AM CDT	Tornado Warning	EWX	Gonzales, Lavaca	26 min
Oct 14, 3:39 AM CDT	Tornado Warning	EWX	Fayette, Gonzales, Lavaca	36 min
Oct 14, 3:42 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Caldwell, Gonzales, Guadalupe, Karnes, Lavaca, Wilson	7 hr
Oct 14, 4:13 AM CDT	River Flood Warning	EWX	Comal, Gonzales, Guadalupe	3 hr
Oct 14, 4:24 AM CDT	Severe Thunderstorm Warning	EWX	Fayette, Gonzales, Lavaca	66 min
Oct 14, 5:07 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Fayette	5 hr
Oct 14, 5:10 AM CDT	Severe Thunderstorm Warning	EWX	Lavaca	21 min
Oct 14, 5:36 AM CDT	River Flood Warning	EWX	Caldwell, Hays	8 hr
Oct 14, 5:36 AM CDT	River Flood Warning	EWX	Caldwell, Gonzales	38 hr
Oct 14, 7:15 AM CDT	River Flood Warning	EWX	Travis	6 hr
Oct 14, 7:19 AM CDT	River Flood Warning	EWX	Gonzales	3 days
Oct 14, 7:52 AM CDT	River Flood Warning	EWX	Guadalupe	3 hr
Oct 14, 8:23 AM CDT	River Flood Warning	EWX	Bexar	7 hr
Oct 14, 8:28 AM CDT	River Flood Warning	EWX	Bexar	21 hr
Oct 14, 8:28 AM CDT	River Flood Warning	EWX	Bexar, Wilson	29 hr
Oct 14, 8:29 AM CDT	River Flood Warning	EWX	Bexar	12 hr
Oct 14, 9:10 AM CDT	River Flood Warning	EWX	DeWitt	3 days
Oct 14, 9:11 AM CDT	River Flood Warning	EWX	DeWitt	5 days
Oct 14, 10:54 AM CDT	River Flood Warning	EWX	Karnes, Wilson	33 hr
Oct 14, 10:55 AM CDT	River Flood Warning	EWX	Karnes	45 hr

Nearby

Flash Flood Warnings in Texas, 2021 Every 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.