Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 40, NWS Midland/Odessa, TX

September 29, 20126 counties in Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 29, 2012, 12:25 AM CDT for 6 counties in Texas. It was in force for 4 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 29, 2012, 12:25 AM CDT (05:25 UTC)
Expired
Sep 29, 2012, 4:15 AM CDT
In force
4 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

Counties Crane County, TX, Ector County, TX, Midland County, TX, Reeves County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 80 km from the middle of the area, began a volume at 05:27 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 00:00Z, 5.4 hours before the alert went out and 80 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 2012-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 88 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 2012-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 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
88 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
496 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

916 
WGUS54 KMAF 290525
FFWMAF
TXC103-135-329-389-475-495-290915-
/O.NEW.KMAF.FF.W.0040.120929T0525Z-120929T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1225 AM CDT SAT SEP 29 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ECTOR COUNTY IN WEST TEXAS...
  MIDLAND COUNTY IN WEST TEXAS...
  CRANE COUNTY IN WEST TEXAS...
  WARD COUNTY IN WEST TEXAS...
  WINKLER COUNTY IN WEST TEXAS...
  EAST CENTRAL REEVES COUNTY IN SOUTHWEST TEXAS...

* UNTIL 415 AM CDT

* AT 1216 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  MODERATE TO HEAVY RAINFALL CONTINUING TO SPREAD ACROSS A LARGE
  PART OF THE SOUTHERN AND CENTRAL PERMIAN BASIN. RAINFALL RATES
  OF 1/2 INCH TO 1 INCH PER HOUR ARE EXPECTED OVER THE WARNED AREA.
  WITH HEAVY RAINFALL FALLING ON SATURATED SOIL...FLASH FLOODING 
  IS EXPECTED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINK...
  WICKETT...WEST ODESSA...WARFIELD...VALLEY VIEW...THE WINKLER COUNTY
  SANDHILLS...MONAHANS SANDHILLS STATE PARK...SPRABERRY...PYOTE...
  PLEASANT FARMS...PENWELL...ODESSA...NOTREES...NORTH COWDEN...
  MONAHANS...MISSION DORADO...MIDLAND INTERNATIONAL AIRPORT...
  MIDLAND...KERMIT...GREENWOOD...GOLDSMITH...GARDENDALE AND COTTON
  FLAT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL IS EXPECTED WHICH COULD INCREASE THE POTENTIAL
FOR FLOODING IN THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS... URBAN AREAS... HIGHWAYS... STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO
HIGHER GROUND.

&&

LAT...LON 3165 10361 3165 10333 3200 10333 3200 10307
      3209 10305 3209 10178 3165 10178 3165 10232
      3109 10230 3109 10241 3121 10244 3133 10267
      3127 10282 3138 10302 3111 10328 3143 10326
      3143 10346 3162 10351

$$

05
1 follow-up statement
703 
WGUS74 KMAF 290819
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
319 AM CDT SAT SEP 29 2012

TXC103-135-329-389-475-495-290915-
/O.CON.KMAF.FF.W.0040.000000T0000Z-120929T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ECTOR-MIDLAND-CRANE-WARD-WINKLER-REEVES-
319 AM CDT SAT SEP 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR EAST
CENTRAL REEVES...WINKLER...WARD...CRANE...MIDLAND AND ECTOR
COUNTIES...

AT 310 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SHOWERS WITH MODERATE TO HEAVY RAIN CAPABLE OF FLASH 
FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINK...
WICKETT...WEST ODESSA...WARFIELD...VALLEY VIEW...THE WINKLER COUNTY
SANDHILLS...MONAHANS SANDHILLS STATE PARK...SPRABERRY...PLEASANT
FARMS...PENWELL...ODESSA...NOTREES...NORTH COWDEN...MONAHANS...
MISSION DORADO...MIDLAND INTERNATIONAL AIRPORT...MIDLAND...KERMIT...
GREENWOOD...GOLDSMITH...GARDENDALE AND COTTON FLAT.

NO RECENT REPORTS OF FLOODING OR FLASH FLOODING HAVE BEEN RECEIVED 
HOWEVER THE SHOWERS ARE STILL WIDESPREAD WITH RAINFALL RATES AROUND 
ONE HALF INCH PER HOUR AND RUNOFF WILL EASILY BE GENERATED. IT  IS 
EXPECTED THAT THERE ARE STILL LOW WATER CROSSINGS AND CREEKS THAT 
ARE RUNNING WITH WATER.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO 
HIGHER GROUND.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3165 10361 3165 10333 3200 10333 3200 10307
      3209 10305 3209 10178 3165 10178 3165 10232
      3109 10230 3109 10241 3121 10244 3133 10267
      3127 10282 3138 10302 3111 10328 3143 10326
      3143 10346 3162 10351

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 7:31 PM CDTAreal Flood AdvisoryMAFPecos, Reeves, Ward3 hr
Sep 28, 8:59 PM CDTAreal Flood AdvisoryMAFEctor, Midland3 hr
Sep 28, 9:26 PM CDTRiver Flood WarningMAFPresidio13 hr
Sep 28, 9:26 PM CDTRiver Flood WarningMAFBrewster, Presidio13 hr
Sep 28, 9:26 PM CDTRiver Flood WarningMAFBrewster13 hr
Sep 28, 9:42 PM CDTFlash Flood WarningMAFEctor, Midland3 hr
Sep 28, 10:22 PM CDTRiver Flood WarningMAFPresidio12 hr
Sep 28, 10:24 PM CDTFlash Flood WarningMAFCrane, Pecos, Reeves, Ward, Winkler3 hr
Sep 28, 11:42 PM CDTFlash Flood WarningMAFPecos3 hr
Sep 29, 1:32 AM CDTFlash Flood WarningMAFMitchell4 hr
Sep 29, 2:59 AM CDTFlash Flood WarningMAFPecos3 hr
Sep 29, 4:24 AM CDTAreal Flood AdvisoryMAFCrane, Ector, Glasscock, Midland4 hr
Sep 29, 5:35 AM CDTAreal Flood AdvisoryMAFHoward, Mitchell4 hr
Sep 29, 5:59 AM CDTAreal Flood AdvisoryMAFPecos4 hr

Nearby

Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012

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.