Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 25, NWS Midland/Odessa, TX

July 27, 2012Brewster County, Jeff Davis County, Presidio County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jul 27, 2012, 12:00 PM CDT for Brewster County, Jeff Davis County, Presidio 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 27, 2012, 12:00 PM CDT (17:00 UTC)
Expired
Jul 27, 2012, 3:00 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

Counties Brewster County, TX, Jeff Davis County, TX, Presidio County, TX

The radar

The Midland/Odessa radar (KMAF), 223 km from the middle of the area, began a volume at 17:04 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
Jul 27, 1:00 PM CDTFLASH FLOODAlpine, TXWIDE SPREAD FLOODING THROUGH THE CITY OF ALPINE. 4.5 FEET OF RUNNING WATER ACROSS LOW-LYING CROSSINGS.

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 12:00Z, 5.0 hours before the alert went out and 223 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 12:00Z on 2012-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 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 12:00Z on 2012-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.1939Sfc1 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
244 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1144 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
36 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.

808 
WGUS54 KMAF 271700
FFWMAF
TXC043-243-377-272000-
/O.NEW.KMAF.FF.W.0025.120727T1700Z-120727T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1200 PM CDT FRI JUL 27 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN BREWSTER COUNTY IN SOUTHWEST TEXAS...
  SOUTHEASTERN JEFF DAVIS COUNTY IN SOUTHWEST TEXAS...
  NORTHEASTERN PRESIDIO COUNTY IN SOUTHWEST TEXAS...

* UNTIL 300 PM CDT

* AT 1153 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS 
  DETECTED FLASH FLOODING FROM THUNDERSTORMS NEAR ALPINE...MOVING 
  WEST AT 10 MPH.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL AFFECT THE FOLLOWING
LOCATIONS...
  CAMP MITRE PEAK...
  PAISANO PASS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STREAMS AND DRAINAGES AFFECTED INCLUDE BUT ARE NOT LIMITED TO...GOAT
CREEK...MOSS CREEK...BARRILLA DRAW...HORSE THIEF CANYON...PAISANO
CREEK...ANTELOPE DRAW...DUTCHMAN CREEK...MUSQUIZ CREEK...DUGOUT
CREEK...PE A COLORADO CREEK...CIENEGA CREEK...BLACK CREEK...HORSE
THIEF CREEK...BARILLOS CREEK...BURNT HOUSE CREEK...MARAVILLAS
CANYON...ALAMITO CREEK...NORTH FORK CIENEGA CREEK AND SOUTH FORK
CIENEGA CREEK.

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 UNDERESTIMATE THE POWER OF FLOOD WATERS. IT TAKES ONLY A FEW
INCHES OF RAPIDLY FLOWING WATER TO QUICKLY CARRY AWAY YOUR VEHICLE.

&&

LAT...LON 3045 10399 3076 10359 3038 10307 2993 10374

$$
1 follow-up statement
378 
WGUS74 KMAF 271830
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
130 PM CDT FRI JUL 27 2012

TXC043-243-377-272000-
/O.CON.KMAF.FF.W.0025.000000T0000Z-120727T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BREWSTER-JEFF DAVIS-PRESIDIO-
130 PM CDT FRI JUL 27 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
NORTHEASTERN PRESIDIO...SOUTHEASTERN JEFF DAVIS AND NORTHWESTERN
BREWSTER COUNTIES...

AT 119 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A THUNDERSTORMS PRODUCING FLASH FLOODING IN THE WARNED AREA.  
ALTHOUGH RADAR INDICATES STORMS ARE DIMINISHING IN 
STRENGTH...ARROYOS...LOW WATER CROSSINGS...AND LOW LYING AREAS WILL 
REMAIN IN FLOOD FOR THE NEXT SEVERAL HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STREAMS AND DRAINAGES AFFECTED INCLUDE BUT ARE NOT LIMITED TO...GOAT
CREEK...MOSS CREEK...BARRILLA DRAW...HORSE THIEF CANYON...PAISANO
CREEK...ANTELOPE DRAW...DUTCHMAN CREEK...MUSQUIZ CREEK...DUGOUT
CREEK...PE A COLORADO CREEK...CIENEGA CREEK...BLACK CREEK...HORSE
THIEF CREEK...BARILLOS CREEK...BURNT HOUSE CREEK...MARAVILLAS
CANYON...ALAMITO CREEK...NORTH FORK CIENEGA CREEK AND SOUTH FORK
CIENEGA CREEK.

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 UNDERESTIMATE THE POWER OF FLOOD WATERS. IT TAKES ONLY A FEW
INCHES OF RAPIDLY FLOWING WATER TO QUICKLY CARRY AWAY YOUR VEHICLE.

&&

LAT...LON 3045 10399 3076 10359 3038 10307 2993 10374

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 11:55 PM CDTAreal Flood AdvisoryMAFTerrell3 hr
Jul 27, 8:32 AM CDTAreal Flood AdvisoryMAFBrewster, Jeff Davis, Presidio3 hr
Jul 27, 8:49 AM CDTRiver Flood WarningMAFPresidio16 hr
Jul 27, 9:06 AM CDTFlash Flood WarningMAFBrewster3 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.