Alert archive / Texas / Flash Flood Warnings in 2019

Flash Flood Warning 21, NWS Midland/Odessa, TX

July 22, 2019Gaines County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jul 22, 2019, 7:34 PM CDT for Gaines 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
Jul 22, 2019, 7:34 PM CDT (00:34 UTC)
Expired
Jul 22, 2019, 10:30 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

County Gaines County, TX

The radar

The Midland/Odessa radar (KMAF), 96 km from the middle of the area, began a volume at 00:35 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

TimeReportWhereRemark
Jul 22, 9:00 PM CDTFLASH FLOOD4 N Seminole, TXWATER COVERING HWY 385.

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 00:00Z, 0.6 hours before the alert went out and 95 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 00:00Z on 2019-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 336 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 00:00Z on 2019-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
336 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
2002 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

548 
WGUS54 KMAF 230034
FFWMAF
TXC165-230330-
/O.NEW.KMAF.FF.W.0021.190723T0034Z-190723T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
734 PM CDT Mon Jul 22 2019

The National Weather Service in Midland has issued a

* Flash Flood Warning for...
  Gaines County in western Texas...

* Until 1030 PM CDT.

* At 733 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Flash flooding is expected to
  begin shortly.

* Some locations that will experience flooding include...
  Seminole, Gaines County Airport, Paynes Corner, Higginbotham,
  McKenzie Lake and Gaines County Park.

This includes the following low water crossing locations RR 181
crossing Seminole Draw, RR 181 crossing Seminole Draw tributary, RR
1757 crossing Seminole Draw tributary, RR 181 crossing Wardswell
Draw, and Ave G crossing Wardswell Draw tributary.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3288 10221 3252 10221 3253 10306 3296 10305

$$

29
1 follow-up statement
676 
WGUS74 KMAF 230202
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
902 PM CDT Mon Jul 22 2019

TXC165-230330-
/O.CON.KMAF.FF.W.0021.000000T0000Z-190723T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gaines TX-
902 PM CDT Mon Jul 22 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
GAINES COUNTY...

At 900 PM CDT, local law enforcement reported water over the road 
north of Seminole along Highway 385. Even though rain has mostly 
diminished, flash flooding is still possible across the area.

Some locations that will experience flooding include...
Seminole, Gaines County Airport, Paynes Corner, Higginbotham,
McKenzie Lake and Gaines County Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3288 10221 3252 10221 3253 10306 3296 10305

$$

29

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:02 PM CDTSpecial Weather StatementMAFMidland43 min
Jul 22, 8:12 PM CDTAreal Flood AdvisoryMAFEctor, Midland3 hr
Jul 22, 8:53 PM CDTSpecial Weather StatementMAFEctor, Midland52 min
Jul 22, 9:09 PM CDTFlash Flood WarningMAFAndrews, Ector, Martin, Midland3 hr

Nearby

Flash Flood Warnings in Texas, 2019Every flash flood warning in 2019

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.