Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 1, NWS Midland/Odessa, TX

April 30, 2012Borden County, Scurry County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Apr 30, 2012, 6:52 PM CDT for Borden County, Scurry County, 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
Apr 30, 2012, 6:52 PM CDT (23:52 UTC)
Expired
Apr 30, 2012, 9:45 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

Counties Borden County, TX, Scurry County, TX

The radar

The Lubbock radar (KLBB), 116 km from the middle of the area, began a volume at 23:52 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 12:00Z, 11.9 hours before the alert went out and 142 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 2012-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1590 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 2012-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
1590 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
1149 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
184 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.

312 
WGUS54 KMAF 302352
FFWMAF
TXC033-415-010245-
/O.NEW.KMAF.FF.W.0001.120430T2352Z-120501T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
652 PM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN SCURRY COUNTY IN WEST TEXAS...
  NORTHEASTERN BORDEN COUNTY IN WEST TEXAS...

* UNTIL 945 PM CDT

* AT 643 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL NEAR ONE AND 
  ONE HALF INCH PER HOUR...MOVING EAST ACROSS NORTHEASTERN BORDEN
  AND NORTHWESTERN SCURRY COUNTIES AT 15 MPH. RAPID RUNOFF FROM THE
  HEAVY RAINFALL WILL LIKELY RESULT IN FLASH FLOODING...MAINLY OF
  RURAL ROADS.  FARM TO MARKET ROAD 1269 BETWEEN FLUVANNA AND US 
  HIGHWAY 180...AND ALONG FARM TO MARKET 2350 FROM FLUVANNA TO 
  3 MILES WEST OF FLUVANNA HAVE HAD THE HEAVIEST RAINFALL IN THE 
  LAST HOUR.    

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  FLUVANNA...ARAH  AND DERMOTT.

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.

&&

LAT...LON 3264 10100 3267 10112 3279 10131 3297 10129
      3297 10116 3297 10109 3296 10089 3269 10087

$$
1 follow-up statement
774 
WGUS74 KMAF 010030
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
730 PM CDT MON APR 30 2012

TXC033-415-010245-
/O.CON.KMAF.FF.W.0001.000000T0000Z-120501T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCURRY-BORDEN-
730 PM CDT MON APR 30 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHEASTERN BORDEN AND NORTHWESTERN SCURRY COUNTIES...

AT 641 PM CDT...THE SNYDER FIRE DEPARTMENT REPORTED 2 FEET OF WATER
RUNNING OVER FARM TO MARKET 1269...FROM 6 MILES SOUTH OF FLUVANNA TO
THE INTERSECTION OF US HIGHWAY 180.  THE FLOODING WAS STILL OCCURRING
ALONG FARM TO MARKER 1269...AND WILL LIKELY WORSEN AS THUNDERSTORMS 
PRODUCING HEAVY RAINFALL NEAR TWO INCHES PER HOUR CONTINUE TO MOVE 
EAST AT 15 MPH OVER WESTERN SCURRY COUNTY.  

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FLUVANNA AND
DERMOTT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
TUESDAY MORNING FOR WEST TEXAS. A SEVERE THUNDERSTORM WATCH ALSO
REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING FOR SOUTHWESTERN
TEXAS.

&&

LAT...LON 3264 10100 3267 10112 3279 10131 3297 10129
      3297 10116 3297 10109 3296 10089 3269 10087

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 5:20 AM CDTFire Weather WatchMAF8 hr
Apr 30, 5:20 AM CDTFire Weather WatchMAF49 hr
Apr 30, 1:19 PM CDTRed Flag WarningMAF32 hr
Apr 30, 2:30 PM CDTSevere Thunderstorm WarningMAFPecos60 min
Apr 30, 3:28 PM CDTSevere Thunderstorm WarningMAFBrewster, Jeff Davis, Pecos62 min
Apr 30, 4:09 PM CDTSevere Thunderstorm WarningMAFBrewster66 min
Apr 30, 4:31 PM CDTSevere Thunderstorm WarningMAFBrewster, Pecos59 min
Apr 30, 4:38 PM CDTSevere Thunderstorm WarningMAFBrewster52 min
Apr 30, 5:04 PM CDTSevere Thunderstorm WarningMAFBorden, Scurry56 min
Apr 30, 5:16 PM CDTSevere Thunderstorm WarningMAFBrewster59 min
Apr 30, 5:24 PM CDTSevere Thunderstorm WarningMAFBrewster51 min
Apr 30, 5:57 PM CDTSevere Thunderstorm WarningMAFBorden, Scurry63 min
Apr 30, 5:59 PM CDTAreal Flood AdvisoryMAFBrewster3 hr
Apr 30, 6:16 PM CDTSevere Thunderstorm WarningMAFBrewster39 min
Apr 30, 6:17 PM CDTSevere Thunderstorm WarningMAFHoward, Martin58 min
Apr 30, 6:40 PM CDTSevere Thunderstorm WarningMAFBorden, Scurry65 min

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.