Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 14, NWS Lubbock, TX

July 11, 20214 counties in Texas

NWS Lubbock, TX issued this flash flood warning at Jul 11, 2021, 3:06 PM CDT for 4 counties in Texas. It was in force for 81 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: Jul 11, 2021, 3:06 PM CDT (20:06 UTC)
Expired: Jul 11, 2021, 4:27 PM CDT
In force: 81 min
Issued by: NWS Lubbock, TX
Area: Storm-based polygon
Flood severity: None

Counties Cochran County, TX, Hockley County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 78 km from the middle of the area, began a volume at 20:09 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
Jul 11, 3:10 PM CDT	HEAVY RAIN 2.45	8 Wsw Sundown, TX	FELL WITHIN ONE HOUR WITH 1.57 FALLING WITHIN 25 MINUTES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.1 hours before the alert went out and 159 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: 964 J/kg
Mixed-layer CIN: -244 J/kg
Mixed-layer LCL: 1122 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

067 
WGUS54 KLUB 112006
FFWLUB
TXC079-219-445-501-112215-
/O.NEW.KLUB.FF.W.0014.210711T2006Z-210711T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lubbock TX
306 PM CDT Sun Jul 11 2021

The National Weather Service in Lubbock has issued a

* Flash Flood Warning for...
  Southeastern Cochran County in northwestern Texas...
  Southwestern Hockley County in northwestern Texas...
  Northwestern Terry County in northwestern Texas...
  Northeastern Yoakum County in northwestern Texas...

* Until 515 PM CDT.

* At 306 PM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. The 
  West Texas Mesonet site near Sundown has reported 2.25 inches of 
  precipitation in the past hour. Up to 2.5 inches of rain have 
  fallen. Additional rainfall amounts up to 2.0 inches are possible 
  in the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Sundown and Locketville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3349 10275 3358 10263 3338 10225 3324 10226
      3316 10244 3320 10259 3322 10267 3334 10282

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

WCI

2 follow-up statements

066 
WGUS74 KLUB 112045
FFSLUB

Flash Flood Statement
National Weather Service Lubbock TX
345 PM CDT Sun Jul 11 2021

TXC079-219-445-501-112215-
/O.CON.KLUB.FF.W.0014.000000T0000Z-210711T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cochran TX-Hockley TX-Terry TX-Yoakum TX-
345 PM CDT Sun Jul 11 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM CDT THIS 
AFTERNOON FOR SOUTHEASTERN COCHRAN, SOUTHWESTERN HOCKLEY, 
NORTHWESTERN TERRY AND NORTHEASTERN YOAKUM COUNTIES...

At 345 PM CDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Up to 3 
inches of rain have fallen. Additional rainfall amounts up to 0.1 
inches are possible in the warned area. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Sundown and Locketville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3349 10275 3358 10263 3338 10225 3324 10226
      3316 10244 3320 10259 3322 10267 3334 10282

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

WCI

393 
WGUS74 KLUB 112127
FFSLUB

Flash Flood Statement
National Weather Service Lubbock TX
427 PM CDT Sun Jul 11 2021

TXC079-219-445-501-112137-
/O.CAN.KLUB.FF.W.0014.000000T0000Z-210711T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cochran TX-Hockley TX-Terry TX-Yoakum TX-
427 PM CDT Sun Jul 11 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN COCHRAN, 
SOUTHWESTERN HOCKLEY, NORTHWESTERN TERRY AND NORTHEASTERN YOAKUM 
COUNTIES...

The heavy rain has ended. Please continue to heed remaining road 
closures.

LAT...LON 3349 10275 3358 10263 3338 10225 3324 10226
      3316 10244 3320 10259 3322 10267 3334 10282

$$

WCI

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 6:07 AM CDT	Special Weather Statement	LUB	King	23 min
Jul 11, 1:14 PM CDT	Severe Thunderstorm Warning	LUB	Cochran, Yoakum	47 min
Jul 11, 1:54 PM CDT	Severe Thunderstorm Warning	LUB	Cochran, Hockley, Terry, Yoakum	66 min
Jul 11, 2:20 PM CDT	Areal Flood Advisory	LUB	Cochran, Hockley, Terry, Yoakum	112 min
Jul 11, 2:49 PM CDT	Severe Thunderstorm Warning	LUB	Hockley, Terry	56 min
Jul 11, 2:56 PM CDT	Severe Thunderstorm Warning	LUB	Bailey, Cochran, Hockley, Lamb	20 min
Jul 11, 2:58 PM CDT	Areal Flood Advisory	LUB	Kent	2 hr
Jul 11, 3:12 PM CDT	Severe Thunderstorm Warning	LUB	Garza, Kent	31 min
Jul 11, 3:25 PM CDT	Severe Thunderstorm Warning	LUB	Lynn, Terry	25 min
Jul 11, 3:30 PM CDT	Areal Flood Advisory	LUB	Lynn, Terry	96 min
Jul 11, 3:54 PM CDT	Areal Flood Advisory	LUB	Garza, Lynn	2 hr
Jul 11, 3:58 PM CDT	Areal Flood Advisory	LUB	Crosby, Garza, Kent	67 min
Jul 11, 4:29 PM CDT	Areal Flood Advisory	LUB	Crosby, Floyd	93 min
Jul 11, 4:32 PM CDT	Special Weather Statement	LUB	Lubbock	28 min
Jul 11, 4:45 PM CDT	Areal Flood Advisory	LUB	Dickens, Floyd, Kent, King, Motley, Stonewall	2 hr
Jul 11, 5:03 PM CDT	Areal Flood Advisory	LUB	Crosby, Garza, Lubbock, Lynn	2 hr
Jul 11, 5:04 PM CDT	Special Weather Statement	LUB	Lubbock	26 min
Jul 11, 5:24 PM CDT	Areal Flood Advisory	LUB	Hale, Lubbock	2 hr
Jul 11, 5:25 PM CDT	Special Weather Statement	LUB	Lubbock	35 min
Jul 11, 5:52 PM CDT	Special Weather Statement	LUB	Lubbock	23 min
Jul 11, 6:09 PM CDT	Special Weather Statement	LUB	Stonewall	36 min
Jul 11, 6:53 PM CDT	Special Weather Statement	LUB	Lubbock	22 min

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.