Alert archive / Texas / Flash Flood Warnings in 2012

Flash Flood Warning 5, NWS Lake Charles, LA

February 15, 2012Tyler County, Texas

NWS Lake Charles, LA issued this flash flood warning at Feb 15, 2012, 2:28 PM CST for Tyler County, Texas. It was in force for 4 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
Feb 15, 2012, 2:28 PM CST (20:28 UTC)
Expired
Feb 15, 2012, 6:26 PM CST
In force
4 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

County Tyler County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.5 hours before the alert went out and 151 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, Lake Charles Mun, LA at 12:00Z on 2012-02-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 83 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, Lake Charles Mun, LA at 12:00Z on 2012-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 283 square meters per square second.1939587897117Sfc1 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
83 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
283 m²/s²
0-3 km storm-relative helicity
435 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

803 
WGUS54 KLCH 152028
FFWLCH
TXC457-160130-
/O.NEW.KLCH.FF.W.0005.120215T2028Z-120216T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
228 PM CST WED FEB 15 2012

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN TYLER COUNTY IN SOUTHEAST TEXAS...

* UNTIL 730 PM CST

* AT 222 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS TYLER COUNTY.        
  RAINFALL AMOUNTS IN THE PAST TWO HOURS HAS BEEN IN EXCESS OF 2     
  INCHES ACROSS NORTHWEST TYLER COUNTY. SHOWERS AND THUNDERSTORMS    
  WILL CONTINUE TO DEVELOP TO THE WEST AND MOVE TO THE EAST ACROSS   
  TYLER COUNTY. THIS MAY PRODUCE AN ADDITIONAL 2 TO 2.5 INCHES OF    
  RAINFALL BY 4 PM...WITH ADDITIONAL RAINFALL POSSIBLE THEREAFTER.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CHESTER...COLMESNEIL...ROCKLAND AND WOODVILLE.

 SOME OF THE LOCAL DRAINAGE AREAS MOST LIKELY TO FLOOD INCLUDE BUT   
 ARE NOT LIMITED TO BEALE BRANCH...BILLIAMS CREEK...GREENWOOD        
 CREEK...WOLF CREEK...SUGAR CREEK AND  LITTLE CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...


A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3106 9457 3104 9445 3100 9445 3103 9442
      3104 9434 3102 9432 3104 9429 3099 9425
      3082 9419 3055 9455 3102 9465

$$

BRAZZELL
2 follow-up statements
959 
WGUS74 KLCH 152340
FFSLCH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
540 PM CST WED FEB 15 2012

TXC457-160130-
/O.CON.KLCH.FF.W.0005.000000T0000Z-120216T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TYLER TX-
540 PM CST WED FEB 15 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN TYLER
COUNTY UNTIL 730 PM CST...

AT 537 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
INDICATES THAT RAINFALL IS COMING TO AN END ACROSS TYLER COUNTY. 
RAINFALL AMOUNTS OVER THE PAST SIX HOURS HAS BEEN 1 TO 3 INCHES. THE 
ADDITIONAL RAINFALL HAS NOT BEEN AS HEAVY AS EXPECTED EARLIER. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHESTER...COLMESNEIL...ROCKLAND AND WOODVILLE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3106 9457 3104 9445 3100 9445 3103 9442
      3104 9434 3102 9432 3104 9429 3099 9425
      3082 9419 3055 9455 3102 9465

$$
040 
WGUS74 KLCH 160026
FFSLCH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
626 PM CST WED FEB 15 2012

TXC457-160041-
/O.CAN.KLCH.FF.W.0005.000000T0000Z-120216T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TYLER TX-
626 PM CST WED FEB 15 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHWESTERN TYLER
COUNTY IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY AND 
ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3106 9457 3104 9445 3100 9445 3103 9442
      3104 9434 3102 9432 3104 9429 3099 9425
      3082 9419 3055 9455 3102 9465

$$

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 12:50 PM CSTSpecial Weather StatementLCHTyler55 min
Feb 15, 1:47 PM CSTSpecial Weather StatementLCHJasper58 min
Feb 15, 2:42 PM CSTAreal Flood AdvisoryLCHNewton48 min
Feb 15, 3:53 PM CSTFlash Flood WarningLCHNewton4 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.