Alert archive / Texas / Flash Flood Warnings in 2017

Flash Flood Warning 20, NWS Midland/Odessa, TX

July 22, 2017Crane County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jul 22, 2017, 7:10 PM CDT for Crane 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, 2017, 7:10 PM CDT (00:10 UTC)
Expired: Jul 22, 2017, 9:45 PM CDT
In force: 3 hr
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Flood severity: None

County Crane County, TX

The radar

The Midland/Odessa radar (KMAF), 81 km from the middle of the area, began a volume at 00:10 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 22, 7:15 PM CDT	FLASH FLOOD	12 N Crane, TX	WATER OVER US HWY 385 BETWEEN RANCH RD. 1233 AND CAPROCK RD. ROUGHLY 10-14 MILES NORTH OF CRANE.

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

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 0.2 hours before the alert went out and 267 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: 1090 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 2461 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

481 
WGUS54 KMAF 230010
FFWMAF
TXC103-230245-
/O.NEW.KMAF.FF.W.0020.170723T0010Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
710 PM CDT SAT JUL 22 2017

The National Weather Service in Midland has issued a

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

* Until 945 PM CDT

* At 710 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Radar estimates up to two inches 
  of rain have already fallen in parts of the county. Flash flooding 
  is expected to begin shortly.

* Some locations that will experience flooding include...
  Crane, Cordona Lake, Tubbs Corner and Crane County Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3109 10241 3113 10243 3116 10242 3121 10244
      3126 10251 3132 10263 3134 10270 3128 10275
      3130 10277 3165 10276 3165 10232 3108 10230

$$

49

1 follow-up statement

604 
WGUS74 KMAF 230039
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
739 PM CDT SAT JUL 22 2017

TXC103-230245-
/O.CON.KMAF.FF.W.0020.000000T0000Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crane TX-
739 PM CDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
CRANE COUNTY...

At 735 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area west and north of Crane. Radar estimates 
up to two inches of rain have already fallen. Highway 385 between 
Caprock Road and Ranch Road 1233 is reported to be flooded.

Some locations that will experience flooding include...
Crane, Cordona Lake, Tubbs Corner and Crane County Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3109 10241 3113 10243 3116 10242 3121 10244
      3126 10251 3132 10263 3134 10270 3128 10275
      3130 10277 3165 10276 3165 10232 3108 10230

$$

49

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 7:48 PM CDT	Flash Flood Warning	MAF	Upton	3 hr
Jul 22, 9:49 PM CDT	Special Weather Statement	MAF	Jeff Davis	56 min
Jul 23, 7:41 AM CDT	Areal Flood Advisory	MAF	Crane, Pecos, Upton	3 hr
Jul 23, 9:23 AM CDT	Areal Flood Advisory	MAF	Ector	3 hr
Jul 23, 1:28 PM CDT	Areal Flood Advisory	MAF	Brewster, Pecos, Terrell	3 hr
Jul 23, 1:49 PM CDT	Flash Flood Warning	MAF	Brewster, Pecos, Terrell	3 hr
Jul 23, 3:56 PM CDT	Areal Flood Advisory	MAF	Pecos, Terrell	2 hr
Jul 23, 4:18 PM CDT	Special Weather Statement	MAF	Pecos	42 min
Jul 23, 4:42 PM CDT	Special Weather Statement	MAF	Jeff Davis	48 min
Jul 23, 4:52 PM CDT	Areal Flood Advisory	MAF	Jeff Davis	3 hr
Jul 23, 5:48 PM CDT	Areal Flood Advisory	MAF	Crane, Pecos, Upton	3 hr

Nearby

Flash Flood Warnings in Texas, 2017 Every flash flood warning in 2017

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.