Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 68, NWS Midland/Odessa, TX

September 5, 2021Howard County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 5, 2021, 6:09 PM CDT for Howard County, Texas. It was in force for 2 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
Sep 5, 2021, 6:09 PM CDT (23:09 UTC)
Expired
Sep 5, 2021, 8:15 PM CDT
In force
2 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

County Howard County, TX

The radar

The Midland/Odessa radar (KMAF), 75 km from the middle of the area, began a volume at 23:09 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.2 hours before the alert went out and 75 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-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2021-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2021-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
84 J/kg
Mixed-layer CIN
-137 J/kg
Mixed-layer LCL
1680 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

863 
WGUS54 KMAF 052309
FFWMAF
TXC227-060115-
/O.NEW.KMAF.FF.W.0068.210905T2309Z-210906T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
609 PM CDT Sun Sep 5 2021

The National Weather Service in Midland/Odessa has issued a

* Flash Flood Warning for...
  South Central Howard County in western Texas...

* Until 815 PM CDT.

* At 609 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. The expected rainfall rate is 2 to 4 inches in 1 
  hour. 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, Big Spring Country Club and Big Spring McMahon-Wrinkle 
  Airpark.

This includes the following streams and drainages...
  Beals Creek, Moss Creek and Elbow Creek.

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 3218 10153 3224 10155 3230 10151 3229 10139
      3226 10137 3219 10143

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-4 INCHES IN 1 HOUR

$$

James DeBerry
1 follow-up statement
131 
WGUS74 KMAF 052351
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
651 PM CDT Sun Sep 5 2021

TXC227-060115-
/O.CON.KMAF.FF.W.0068.000000T0000Z-210906T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Howard TX-
651 PM CDT Sun Sep 5 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT THIS 
EVENING FOR SOUTH CENTRAL HOWARD COUNTY...

At 651 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3 inches of rain have 
fallen. 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, Big Spring Country Club and Big Spring McMahon-Wrinkle 
  Airpark.

This includes the following streams and drainages...
  Beals Creek, Moss Creek and Elbow Creek.

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 3218 10153 3224 10155 3230 10151 3229 10139
      3226 10137 3219 10143

FLASH FLOOD...RADAR INDICATED

$$

James DeBerry

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 3:16 PM CDTSpecial Weather StatementMAFAndrews29 min
Sep 5, 3:44 PM CDTSpecial Weather StatementMAFAndrews31 min
Sep 5, 4:51 PM CDTSpecial Weather StatementMAFGlasscock24 min
Sep 5, 5:13 PM CDTSpecial Weather StatementMAFHoward32 min
Sep 5, 5:22 PM CDTSpecial Weather StatementMAFMitchell23 min
Sep 5, 5:50 PM CDTAreal Flood AdvisoryMAFHoward, Martin, Midland115 min
Sep 5, 5:54 PM CDTSpecial Weather StatementMAFMitchell36 min
Sep 5, 5:55 PM CDTAreal Flood AdvisoryMAFMitchell2 hr

Nearby

Flash Flood Warnings in Texas, 2021Every 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.