Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 22, NWS Fort Worth, TX

June 14, 2012Delta County, Lamar County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jun 14, 2012, 5:58 AM CDT for Delta County, Lamar County, Texas. It was in force for 2 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
Jun 14, 2012, 5:58 AM CDT (10:58 UTC)
Expired
Jun 14, 2012, 8:00 AM CDT
In force
2 hr
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Flood severity
None

Counties Delta County, TX, Lamar County, TX

The radar

The Shreveport radar (KSHV), 187 km from the middle of the area, began a volume at 11:02 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

Fort Worth, TX (KFWD), launched 00:00Z, 11.0 hours before the alert went out and 182 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, Fort Worth, TX at 00:00Z on 2012-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2223 joules per kilogram.LCLEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 2012-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 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
2223 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1431 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.8
Supercell composite
9.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

463 
WGUS54 KFWD 141058
FFWFWD
TXC119-277-141300-
/O.NEW.KFWD.FF.W.0022.120614T1058Z-120614T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
558 AM CDT THU JUN 14 2012

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN DELTA COUNTY IN NORTHEAST TEXAS
  SOUTHEASTERN LAMAR COUNTY IN NORTHEAST TEXAS

* UNTIL 800 AM CDT

* AT 555 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  THUNDERSTORMS WITH HEAVY RAINFALL 8 MILES SOUTHWEST OF DEPORT. THE
  STORM PRODUCING THE HEAVY RAINFALL WAS NEARLY STATIONARY. RADAR    
  ESTIMATES INDICATED THAT 3 INCHES OF RAIN HAS ALREADY FALLEN IN    
  THE WARNED AREA AND ANOTHER 1 TO 3 INCHES OF RAIN CAN BE           
  EXPECTED THROUGH 800 AM CDT.

* THE STORM PRODUCING THE HEAVY RAINFALL WILL REMAIN OVER 
SOUTHEASTERN LAMAR COUNTY AND EASTERN DELTA COUNTY THROUGH 7 AM.  
THIS WILL AFFECT THE COMMUNITIES OF TAYLOR TOWN...CUNNINGHAM...
ROCKFORD...PACIO AND LAKE CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINS OFTEN FLOOD ROADS AND OTHER LOW LYING AREAS RAPIDLY.
FLOOD WATERS MAY RISE RAPIDLY IN CREEKS...STREAMS...AND NORMALLY DRY 
WASHES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
MUCH WATER IS ON THE ROADS OR IF THE ROAD HAS BEEN DAMAGED OR WASHED
AWAY. TAKE A DIFFERENT ROUTE TO REACH YOUR DESTINATION OR WAIT UNTIL
WATER RECEDES.

&&

LAT...LON 3336 9540 3337 9546 3335 9549 3335 9553
      3336 9554 3335 9556 3348 9565 3355 9563
      3360 9542 3359 9531 3338 9530

$$
1 follow-up statement
885 
WGUS74 KFWD 141214
FFSFWD

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
714 AM CDT THU JUN 14 2012

TXC119-277-141300-
/O.CON.KFWD.FF.W.0022.000000T0000Z-120614T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DELTA TX-LAMAR TX-
714 AM CDT THU JUN 14 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR
SOUTHEASTERN LAMAR AND EASTERN DELTA COUNTIES...

AT 711 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS WITH HEAVY RAINFALL 14 MILES SOUTHWEST OF 
DEPORT...MOVING SOUTH AT 15 MPH. RAINFALL INTENSITY IS BEGINNING TO 
DIMINISH AS THE STORMS ARE NOW MOVING TO THE SOUTH. HOWEVER SOME 
LINGERING RAIN SHOWERS MAY PRODUCE AN ADDITIONAL HALF INCH OF RAIN.  
EARLIER HEAVY RAINFALL OF 3 TO 6 INCHES IN SOUTHEASTERN LAMAR AND 
EASTERN DELTA COUNTY IS CAUSING FLASH FLOODING OF LOW LYING AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINS OFTEN FLOOD ROADS AND OTHER LOW LYING AREAS RAPIDLY.
FLOOD WATERS MAY RISE RAPIDLY IN CREEKS...STREAMS...AND NORMALLY DRY
WASHES. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS
WHICH ARE POTENTIALLY DANGEROUS. DO NOT DRIVE YOUR VEHICLE INTO AREAS
WHERE WATER OF AN UNKNOWN DEPTH COVERS THE ROAD. TAKE A DIFFERENT
ROUTE TO REACH YOUR DESTINATION OR WAIT UNTIL FLOOD WATERS RECEDE.

&&

LAT...LON 3336 9540 3337 9546 3335 9549 3335 9553
      3336 9554 3335 9556 3348 9565 3355 9563
      3360 9542 3359 9531 3338 9530

$$


92

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 7:12 PM CDTSevere Thunderstorm WarningFWDDallas63 min
Jun 13, 7:29 PM CDTSpecial Weather StatementFWDCollin31 min
Jun 13, 7:44 PM CDTSevere Thunderstorm WarningFWDCollin61 min
Jun 13, 7:47 PM CDTSpecial Weather StatementFWDFannin28 min
Jun 13, 7:55 PM CDTSevere Thunderstorm WarningFWDFannin50 min
Jun 13, 8:09 PM CDTSevere Thunderstorm WarningFWDDallas, Ellis66 min
Jun 13, 8:22 PM CDTSevere Thunderstorm WarningFWDHunt53 min
Jun 13, 8:35 PM CDTSevere Thunderstorm WarningFWDDallas, Kaufman, Rockwall39 min
Jun 14, 4:08 AM CDTSpecial Weather StatementFWDDelta37 min
Jun 14, 5:04 AM CDTAreal Flood AdvisoryFWDLamar86 min
Jun 14, 7:47 AM CDTAreal Flood WarningFWDDelta, Lamar2 hr
Jun 14, 8:00 AM CDTSpecial Weather StatementFWDHopkins30 min
Jun 14, 8:06 AM CDTSevere Thunderstorm WarningFWDHopkins54 min
Jun 14, 8:47 AM CDTSpecial Weather StatementFWDHunt28 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.