Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 29, NWS Midland/Odessa, TX

September 28, 2012Howard County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 28, 2012, 5:53 AM CDT for Howard 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
Sep 28, 2012, 5:53 AM CDT (10:53 UTC)
Expired
Sep 28, 2012, 8:45 AM CDT
In force
3 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), 80 km from the middle of the area, began a volume at 10:56 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
Sep 28, 7:30 AM CDTFLASH FLOODBig Spring, TXSTRANDED VEHICLES ALL ACROSS BIG SPRING.

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, 10.9 hours before the alert went out and 81 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 2012-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 245 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 2012-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 km3 km6 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
245 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
74 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.

975 
WGUS54 KMAF 281053
FFWMAF
TXC227-281345-
/O.NEW.KMAF.FF.W.0029.120928T1053Z-120928T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
553 AM CDT FRI SEP 28 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HOWARD COUNTY IN WEST TEXAS...

* UNTIL 845 AM CDT

* AT 545 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED   
  SHOWERS AND STORMS WITH HEAVY RAIN POTENTIALLY RESULTING FLASH     
  FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIG        
  SPRING...VINCENT... VEALMOOR...LUTHER...KNOTT...FAIRVIEW AND       
  COAHOMA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE 
ACROSS FLOODED ROADS. THIS AN UNUSUALLY DANGEROUS FLASH FLOOD 
SITUATION...RAIN SIMILAR TO THIS IN THE PAST HAS RESULTED IN CARS 
BEING SWEPT AWAY AND IS SERIOUS THREAT TO LIFE.

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 3252 10168 3252 10118 3211 10120 3209 10168

$$
2 follow-up statements
788 
WGUS74 KMAF 281201
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
701 AM CDT FRI SEP 28 2012

TXC227-281345-
/O.CON.KMAF.FF.W.0029.000000T0000Z-120928T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOWARD-
701 AM CDT FRI SEP 28 2012

...A LIFE THREATENING FLASH FLOOD SITUATION IS ONGOING...

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR
HOWARD COUNTY...

AT 652 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT THUNDERSTORM WITH VERY HEAVY RAIN PRODUCING FLASH FLOODING 
OVER THE WARNED AREA. RADAR INDICATES THAT WIDESPREAD 2 TO 3 INCHES 
HAS ALREADY FALLEN. REPORTS OF FLOODING OF LOW LYING AREAS HAVE BEEN 
RECEIVED BUT IT IS SUSPECTED THAT FLOODING MAY BE WORSE. THIS IS AN 
EXTREMELY DANGEROUS AND LIFE THREATENING EVENT UNFOLDING. IN THE 
PAST...THIS TYPE OF RAINFALL HAS CAUSED MAJOR FLOODING ON AREA 
ROADWAYS INCLUDING CARS BEING SWEPT AWAY. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIG SPRING 
VINCENT...VEALMOOR...LUTHER...KNOTT AND FAIRVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE
ACROSS FLOODED ROADS.

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 3252 10168 3252 10118 3211 10120 3209 10168

$$
950 
WGUS74 KMAF 281243
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
743 AM CDT FRI SEP 28 2012

TXC227-281345-
/O.CON.KMAF.FF.W.0029.000000T0000Z-120928T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOWARD-
743 AM CDT FRI SEP 28 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR
HOWARD COUNTY...

AT 738 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED WIDESPREAD
FLOODING ACROSS BIG SPRING WITH CARS STRANDED.  FLOODING WAS REPORTED
ON MANY ROADS IN HOWARD COUNTY WITH THE HEAVIEST RAINFALL OCCURRING
ACROSS SOUTHERN HOWARD COUNTY.  ADDITIONAL FLOODING IS EXPECTED.

THE THUNDERSTORMS PRODUCING VERY HEAVY RAIN WILL AFFECT THE FOLLOWING
LOCATIONS...BIG SPRING...FAIRVIEW...SOUTH HAVEN...MIDWAY...SAND
SPRINGS...COAHOMA...LUTHER AND VINCENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE
ACROSS FLOODED ROADS.

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. MOST FLOODING DEATHS ARE PREVENTABLE. TURN AROUND... DONT
DROWN.

&&

LAT...LON 3252 10168 3252 10118 3211 10120 3209 10168

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 7:04 PM CDTAreal Flood AdvisoryMAFMidland3 hr
Sep 28, 3:54 AM CDTAreal Flood AdvisoryMAFMidland3 hr
Sep 28, 4:11 AM CDTFlash Flood WatchMAFAndrews, Borden, Crane, Dawson, Ector, Gaines and 13 more33 hr
Sep 28, 4:45 AM CDTFlash Flood WarningMAFEctor, Midland3 hr
Sep 28, 5:13 AM CDTAreal Flood AdvisoryMAFBorden, Dawson, Howard, Martin3 hr
Sep 28, 7:03 AM CDTFlash Flood WarningMAFMartin3 hr
Sep 28, 7:07 AM CDTFlash Flood WarningMAFMitchell3 hr
Sep 28, 7:28 AM CDTFlash Flood WarningMAFEctor, Midland3 hr
Sep 28, 8:01 AM CDTAreal Flood AdvisoryMAFBorden, Scurry3 hr
Sep 28, 8:04 AM CDTAreal Flood AdvisoryMAFGlasscock3 hr
Sep 28, 9:02 AM CDTFlash Flood WarningMAFHoward4 hr
Sep 28, 9:49 AM CDTFlash Flood WarningMAFMitchell4 hr
Sep 28, 10:07 AM CDTAreal Flood AdvisoryMAFMartin3 hr
Sep 28, 10:21 AM CDTAreal Flood AdvisoryMAFCrane, Upton3 hr
Sep 28, 10:22 AM CDTFlash Flood WarningMAFEctor, Midland4 hr
Sep 28, 10:28 AM CDTAreal Flood AdvisoryMAFPecos, Terrell3 hr
Sep 28, 11:07 AM CDTAreal Flood AdvisoryMAFScurry3 hr
Sep 28, 12:06 PM CDTAreal Flood AdvisoryMAFWard114 min
Sep 28, 1:37 PM CDTRiver Flood WarningMAFMitchell7 hr
Sep 28, 2:03 PM CDTAreal Flood AdvisoryMAFPecos, Reeves, Ward3 hr
Sep 28, 2:53 PM CDTAreal Flood AdvisoryMAFBrewster, Jeff Davis, Pecos, Reeves3 hr
Sep 28, 5:53 PM CDTAreal Flood AdvisoryMAFEctor, Midland3 hr
Sep 28, 6:50 PM CDTRiver Flood WarningMAFPresidio16 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.