Alert archive / Texas / Flash Flood Warnings in 2023

Flash Flood Warning 13, NWS Austin/San Antonio, TX

May 8, 2023Fayette County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 8, 2023, 4:48 PM CDT for Fayette County, Texas. It was in force for 3 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: May 8, 2023, 4:48 PM CDT (21:48 UTC)
Expired: May 8, 2023, 7:45 PM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Fayette County, TX

The radar

The Ft Hood radar (KGRK), 96 km from the middle of the area, began a volume at 21:49 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 8, 7:40 PM CDT	FLASH FLOOD	3 Sse La Grange, TX	PUBLIC VIDEO SHOWS WATER FLOWING OVER THE ROAD AT THE LOW WATER CROSSING AT GUENTHER ROAD AND LANE POOL CREEK WITH ROAD CLOSURE IN PLACE.

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 12:00Z, 9.8 hours before the alert went out and 250 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: 2261 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 1052 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

As transmitted.

578 
WGUS54 KEWX 082148
FFWEWX
TXC149-090045-
/O.NEW.KEWX.FF.W.0013.230508T2148Z-230509T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
448 PM CDT Mon May 8 2023

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

* Flash Flood Warning for...
  Central Fayette County in south central Texas...

* Until 745 PM CDT.

* At 448 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 4 inches of rain have 
  fallen. The expected rainfall rate is 2 inches in 1 hour. 
  Additional rainfall amounts up 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...
  La Grange, Fayetteville, Rabbs Prairie, Plum, Mullins Prairie, 
  Rutersville, Ammannsville, Swiss Alp, O'Quinn, Holman, Warda, West 
  Point, Winchester, Ellinger and Kirtley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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 2997 9711 3004 9703 3004 9702 3003 9702
      3006 9695 3006 9688 3004 9688 2995 9671
      2986 9666 2974 9677 2979 9695 2983 9701
      2992 9711

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2 INCHES IN 1 HOUR

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 9:52 PM CDT	River Flood Warning	EWX	Goliad, Karnes	22 hr
May 7, 10:21 PM CDT	Special Weather Statement	EWX	Val Verde	24 min
May 7, 11:22 PM CDT	Special Weather Statement	EWX	Dimmit	38 min
May 8, 2:04 PM CDT	Special Weather Statement	EWX	Fayette	41 min
May 8, 2:41 PM CDT	Special Weather Statement	EWX	Fayette	49 min
May 8, 2:59 PM CDT	Severe Thunderstorm Warning	EWX	Fayette	61 min
May 8, 3:49 PM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lee	56 min
May 8, 4:02 PM CDT	Special Weather Statement	EWX	Lee	43 min
May 8, 4:28 PM CDT	Areal Flood Advisory	EWX	Fayette	3 hr
May 8, 4:40 PM CDT	Severe Thunderstorm Warning	EWX	Fayette	35 min
May 8, 4:43 PM CDT	Tornado Warning	EWX	Fayette	32 min
May 8, 4:50 PM CDT	Special Weather Statement	EWX	Bastrop, Lee	55 min
May 8, 4:53 PM CDT	Special Weather Statement	EWX	Fayette	22 min
May 8, 5:06 PM CDT	Severe Thunderstorm Warning	EWX	Fayette	54 min
May 8, 5:31 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
May 8, 5:42 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Fayette	2 hr
May 8, 5:54 PM CDT	Severe Thunderstorm Warning	EWX	Fayette	46 min
May 8, 6:05 PM CDT	Special Weather Statement	EWX	Bell	40 min
May 8, 6:13 PM CDT	Special Weather Statement	EWX	Travis	47 min
May 8, 6:47 PM CDT	Special Weather Statement	EWX	Burnet	43 min

Nearby

Flash Flood Warnings in Texas, 2023 Every flash flood warning in 2023

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.