Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 69, NWS Midland/Odessa, TX

October 21, 2021Jeff Davis County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Oct 21, 2021, 2:52 PM CDT for Jeff Davis County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 21, 2021, 2:52 PM CDT (19:52 UTC)
Expired: Oct 21, 2021, 6:00 PM CDT
In force: 3 hr
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Flood severity: None

County Jeff Davis County, TX

The radar

The Midland/Odessa radar (KMAF), 224 km from the middle of the area, began a volume at 19:55 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 7.9 hours before the alert went out and 224 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: 1076 J/kg
Mixed-layer CIN: -203 J/kg
Mixed-layer LCL: 820 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

383 
WGUS54 KMAF 211952
FFWMAF
TXC243-212300-
/O.NEW.KMAF.FF.W.0069.211021T1952Z-211021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
252 PM CDT Thu Oct 21 2021

The National Weather Service in Midland/Odessa has issued a

* Flash Flood Warning for...
  South Central Jeff Davis County in southwestern Texas...

* Until 600 PM CDT.

* At 252 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across 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...
  Fort Davis, McDonald Observatory, Davis Mountains State Park, 
  Black Mountain, Indian Lodge and Fort Davis National Historical 
  Site.

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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3069 10411 3071 10414 3079 10405 3062 10384
      3056 10390 3056 10393

FLASH FLOOD...RADAR INDICATED

$$

Samantha Zuber

1 follow-up statement

327 
WGUS74 KMAF 212043
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
343 PM CDT Thu Oct 21 2021

TXC243-212300-
/O.CON.KMAF.FF.W.0069.000000T0000Z-211021T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jeff Davis TX-
343 PM CDT Thu Oct 21 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING 
FOR SOUTH CENTRAL JEFF DAVIS COUNTY...

At 343 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across 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...
  Fort Davis, McDonald Observatory, Davis Mountains State Park, 
  Black Mountain, Indian Lodge and Fort Davis National Historical 
  Site.

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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3069 10411 3071 10414 3079 10405 3062 10384
      3056 10390 3056 10393

FLASH FLOOD...RADAR INDICATED

$$

Rick Hluchan

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 21, 2:18 PM CDT	Areal Flood Advisory	MAF	Jeff Davis	117 min
Oct 21, 2:28 PM CDT	Special Weather Statement	MAF	Jeff Davis	47 min
Oct 21, 2:39 PM CDT	Areal Flood Advisory	MAF	Brewster, Presidio	3 hr
Oct 21, 3:08 PM CDT	Special Weather Statement	MAF	Presidio	52 min
Oct 21, 3:09 PM CDT	Special Weather Statement	MAF		51 min
Oct 21, 3:30 PM CDT	Special Weather Statement	MAF		45 min
Oct 21, 3:36 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Jeff Davis, Presidio	39 min
Oct 21, 3:38 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	52 min
Oct 21, 4:10 PM CDT	Areal Flood Advisory	MAF	Brewster	3 hr
Oct 21, 4:18 PM CDT	Special Weather Statement	MAF	Pecos	42 min
Oct 21, 4:27 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	48 min
Oct 21, 4:35 PM CDT	Flash Flood Warning	MAF	Brewster	3 hr
Oct 21, 4:49 PM CDT	Special Weather Statement	MAF	Presidio	41 min
Oct 21, 4:56 PM CDT	Special Weather Statement	MAF	Presidio	49 min
Oct 21, 5:13 PM CDT	Special Weather Statement	MAF	Brewster	47 min
Oct 21, 5:27 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Presidio	48 min
Oct 21, 5:34 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	41 min
Oct 21, 6:15 PM CDT	Special Weather Statement	MAF	Presidio	45 min
Oct 21, 6:24 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Presidio	29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.