Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 38, NWS Midland/Odessa, TX

September 28, 20125 counties in Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 28, 2012, 10:24 PM CDT for 5 counties in Texas. It was in force for 3 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 28, 2012, 10:24 PM CDT (03:24 UTC)
Expired
Sep 29, 2012, 1:15 AM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

Counties Crane County, TX, Pecos County, TX, Reeves County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 84 km from the middle of the area, began a volume at 03:23 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, 3.4 hours before the alert went out and 84 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.

089 
WGUS54 KMAF 290324
FFWMAF
TXC103-371-389-475-495-290615-
/O.NEW.KMAF.FF.W.0038.120929T0324Z-120929T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1024 PM CDT FRI SEP 28 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRANE COUNTY IN WEST TEXAS...
  NORTH CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS...
  WARD COUNTY IN WEST TEXAS...
  SOUTHEASTERN WINKLER COUNTY IN WEST TEXAS...
  EAST CENTRAL REEVES COUNTY IN SOUTHWEST TEXAS...

* UNTIL 115 AM CDT

* AT 1017 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  MODERATE TO HEAVY RAIN FROM NEAR PECOS TO IMPERIAL MOVING NORTH
  AT 20 MPH. RAINFALL AMOUNTS OF ONE HALF TO ONE AND ONE HALF 
  INCHES PER HOUR WILL RESULT IN FLASH FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINK...
  WICKETT...MONAHANS SANDHILLS STATE PARK...PYOTE AND MONAHANS.

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.

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 3163 10339 3163 10332 3168 10332 3205 10281
      3167 10281 3164 10281 3164 10274 3164 10233
      3129 10233 3096 10277 3104 10334

$$

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, 11:42 PM CDTFlash Flood WarningMAFPecos3 hr
Sep 29, 12:25 AM CDTFlash Flood WarningMAFCrane, Ector, Midland, Reeves, Ward, Winkler4 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.