Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 31, NWS Midland/Odessa, TX

September 28, 2012Mitchell County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 28, 2012, 7:07 AM CDT for Mitchell 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, 7:07 AM CDT (12:07 UTC)
Expired
Sep 28, 2012, 10:00 AM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

County Mitchell County, TX

The radar

The San Angelo radar (KSJT), 118 km from the middle of the area, began a volume at 12:08 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, 9:30 AM CDTFLASH FLOOD6 S Westbrook, TXSTRANDED VEHICLES WERE REPORTED SOUTH OF WESTBROOK.

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

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 0.1 hours before the alert went out and 327 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, Amarillo Airport, TX at 12:00Z on 2012-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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, Amarillo Airport, TX at 12:00Z on 2012-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
31 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-8 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, in the capitals the NWS used until 2016.

550 
WGUS54 KMAF 281207
FFWMAF
TXC335-281500-
/O.NEW.KMAF.FF.W.0031.120928T1207Z-120928T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

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

* UNTIL 1000 AM CDT

* AT 705 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN IS FALLING ACROSS THE WARNED AREA. UPWARDS OF 2.5  
  INCHES OF RAIN HAVE ALREADY FALLEN ACROSS WESTERN PARTS OF 
  MITCHELL COUNTY. ADDITIONAL STORMS MAY AFFECT THIS AREA THROUGH    
  THE MORNING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WESTBROOK...LORAINE...CUTHBERT AND COLORADO CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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... AND MANY OCCUR WHEN MOTORISTS
DRIVE ACROSS FLOODED ROADWAYS. IT IS NEVER SAFE TO DRIVE ON FLOODED
ROADS. IT ONLY TAKES A FEW INCHES OF RAPIDLY FLOWING WATER TO QUICKLY
CARRY AWAY YOUR VEHICLE. TURN AROUND... DONT DROWN.

&&

LAT...LON 3251 10116 3251 10067 3211 10070 3210 10117

$$
HLUCHAN
1 follow-up statement
884 
WGUS74 KMAF 281437
FFSMAF

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

TXC335-281500-
/O.CON.KMAF.FF.W.0031.000000T0000Z-120928T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-
937 AM CDT FRI SEP 28 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR
MITCHELL COUNTY...

AT 931 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER MITCHELL 
COUNTY.  STRANDED VEHICLES WERE REPORTED SOUTH OF WESTBROOK.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WESTBROOK...
LORAINE...CUTHBERT AND COLORADO CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOODING DEATHS ARE PREVENTABLE... AND MANY OCCUR WHEN MOTORISTS
DRIVE ACROSS FLOODED ROADWAYS. IT IS NEVER SAFE TO DRIVE ON FLOODED
ROADS. IT TAKES ONLY A FEW INCHES OF RAPIDLY FLOWING WATER TO QUICKLY
CARRY AWAY YOUR VEHICLE. TURN AROUND... DONT DROWN.

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.

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 3251 10116 3251 10067 3211 10070 3210 10117

$$

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, 5:53 AM CDTFlash Flood WarningMAFHoward3 hr
Sep 28, 7:03 AM CDTFlash Flood WarningMAFMartin3 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.