Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 2, NWS Midland/Odessa, TX

May 17, 2021Howard County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at May 17, 2021, 6:52 PM CDT for Howard 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 17, 2021, 6:52 PM CDT (23:52 UTC)
Expired: May 17, 2021, 10:00 PM CDT
In force: 3 hr
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Flood severity: None

County Howard County, TX

What was reported inside it

Time	Report	Where	Remark
May 17, 9:21 PM CDT	FLASH FLOOD	1 E Elbow, TX	ROADS FLOODED, CARS STRANDED.

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, 11.9 hours before the alert went out and 76 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: 1892 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

As transmitted.

787 
WGUS54 KMAF 172352
FFWMAF
TXC227-180300-
/O.NEW.KMAF.FF.W.0002.210517T2352Z-210518T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
652 PM CDT Mon May 17 2021

The National Weather Service in Midland/Odessa has issued a

* Flash Flood Warning for...
  Southern Howard County in western Texas...

* Until 1000 PM CDT.

* At 652 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  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...
  Big Spring, Coahoma, Forsan, Sand Springs, Lomax, Big Spring 
  Country Club, Elbow and Big Spring McMahon-Wrinkle Airpark.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3226 10169 3232 10134 3234 10118 3209 10119
      3209 10169

FLASH FLOOD...RADAR INDICATED

$$

David Hennig

1 follow-up statement

438 
WGUS74 KMAF 180124
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
824 PM CDT Mon May 17 2021

TXC227-180300-
/O.CON.KMAF.FF.W.0002.000000T0000Z-210518T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Howard TX-
824 PM CDT Mon May 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS 
EVENING FOR SOUTHERN HOWARD COUNTY...

At 824 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 4 and 5 inches of rain have 
fallen. Additional rainfall amounts of 1 to 2 inches are possible in 
the warned area. Flash flooding is ongoing and is expected to 
continue.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

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...
  Big Spring, Coahoma, Forsan, Sand Springs, Lomax, Big Spring 
  Country Club, Elbow and Big Spring McMahon-Wrinkle Airpark.

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 3226 10169 3232 10134 3234 10118 3209 10119
      3209 10169

FLASH FLOOD...RADAR INDICATED

$$

Matt Salerno

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 7:01 PM CDT	Severe Thunderstorm Warning	MAF	Upton	44 min
May 16, 7:18 PM CDT	Special Weather Statement	MAF	Glasscock	42 min
May 16, 7:20 PM CDT	Special Weather Statement	MAF	Howard	40 min
May 16, 7:23 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Reagan	52 min
May 16, 7:28 PM CDT	Special Weather Statement	MAF	Howard	47 min
May 16, 7:29 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	61 min
May 16, 7:37 PM CDT	Severe Thunderstorm Warning	MAF	Howard, Mitchell	38 min
May 16, 7:46 PM CDT	Areal Flood Advisory	MAF	Glasscock, Reagan	3 hr
May 16, 8:12 PM CDT	Special Weather Statement	MAF	Scurry	18 min
May 16, 8:13 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell, Scurry	47 min
May 16, 8:15 PM CDT	Special Weather Statement	MAF	Glasscock	45 min
May 16, 8:31 PM CDT	Special Weather Statement	MAF	Scurry	44 min
May 16, 8:40 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Mitchell, Scurry	44 min
May 16, 9:12 PM CDT	Special Weather Statement	MAF	Mitchell	48 min
May 17, 3:11 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Pecos, Terrell	64 min
May 17, 4:04 PM CDT	Special Weather Statement	MAF	Glasscock	41 min
May 17, 4:11 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Howard, Martin, Midland	64 min
May 17, 4:14 PM CDT	Special Weather Statement	MAF	Pecos	46 min
May 17, 4:32 PM CDT	Special Weather Statement	MAF	Midland	43 min
May 17, 4:43 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson, Howard, Martin, Midland	62 min
May 17, 4:58 PM CDT	Special Weather Statement	MAF	Terrell	47 min
May 17, 5:14 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Howard, Mitchell	61 min
May 17, 5:19 PM CDT	Special Weather Statement	MAF	Terry	26 min
May 17, 5:21 PM CDT	Severe Thunderstorm Warning	MAF	Pecos, Terrell	54 min
May 17, 5:44 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson, Howard, Martin	61 min
May 17, 5:47 PM CDT	Special Weather Statement	MAF	Mitchell	13 min
May 17, 6:02 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell	28 min
May 17, 6:08 PM CDT	Special Weather Statement	MAF	Scurry	52 min
May 17, 6:11 PM CDT	Severe Thunderstorm Warning	MAF	Terrell	19 min
May 17, 6:12 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Howard, Mitchell	63 min
May 17, 6:16 PM CDT	Special Weather Statement	MAF	Martin	44 min
May 17, 6:23 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell, Scurry	67 min
May 17, 6:31 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Howard, Martin, Midland	59 min
May 17, 6:35 PM CDT	Tornado Warning	MAF	Glasscock, Howard, Mitchell	40 min
May 17, 6:40 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson	35 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.