Alert archive / Louisiana / Flash Flood Warnings in 2012

Flash Flood Warning 6, NWS Lake Charles, LA

February 15, 2012Vernon Parish, Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this flash flood warning at Feb 15, 2012, 3:53 PM CST for Vernon Parish, Louisiana; Newton 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, 3:53 PM CST (21:53 UTC)
Expired: Feb 15, 2012, 8:00 PM CST
In force: 4 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

Counties Vernon Parish, LA, Newton County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.9 hours before the alert went out and 117 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

859 
WGUS54 KLCH 152153
FFWLCH
LAC115-TXC351-160200-
/O.NEW.KLCH.FF.W.0006.120215T2153Z-120216T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN NEWTON COUNTY IN SOUTHEAST TEXAS...
  VERNON PARISH IN WEST CENTRAL LOUISIANA...

* UNTIL 800 PM CST

* AT 347 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS NORTHERN NEWTON      
  COUNTY AND VERNON PARISH. RAINFALL ESTIMATES OVER THE PAST 3 HOURS 
  INDICATE THAT 2 TO 4 INCHES OF RAIN HAS FALLEN. AN ADDITIONAL 1 TO 
  3 INCHES OF RAIN IS EXPECTED OVER PORTIONS OF THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ANACOCO...BURKEVILLE...FORT POLK...LEESVILLE...NEWTON...SLAGLE...
  TOLEDO BEND DAM...BURR FERRY...FARRSVILLE...HORNBECK...HUTTON...
  JAMESTOWN...KURTHWOOD...MAYFLOWER...NEW LLANO AND STRINGTOWN.

  SOME LOCAL DRAINAGES THAT MAY FLOOD INCLUDE HUFF CREEK...HUNTER    
  CREEK...BIG COW CREEK...CANEY CREEK...CAT CREEK...LITTLE COW       
  CREEK...AND DETTY CREEK IN NORTHERN NEWTON COUNTY. IN VERNON       
  PARISH...BRUSHY CREEK...LITTLE SANDY CREEK...BIG BRANCH AND PRARIE 
  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 3136 9299 3133 9295 3132 9288 3125 9285
      3086 9348 3088 9355 3081 9356 3062 9388
      3095 9386 3115 9389 3118 9363 3117 9358
      3120 9355 3124 9356 3128 9353 3128 9345
      3134 9341 3137 9332

$$

BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 2:35 PM CST	Special Weather Statement	LCH	Vernon	55 min
Feb 15, 3:03 PM CST	Severe Thunderstorm Warning	LCH	Rapides, Vernon	57 min
Feb 15, 5:18 PM CST	Areal Flood Advisory	LCH	Rapides	3 hr
Feb 15, 12:50 PM CST	Special Weather Statement	LCH	Tyler	55 min
Feb 15, 1:47 PM CST	Special Weather Statement	LCH	Jasper	58 min
Feb 15, 2:28 PM CST	Flash Flood Warning	LCH	Tyler	4 hr
Feb 15, 2:42 PM CST	Areal Flood Advisory	LCH	Newton	48 min

Nearby

Flash Flood Warnings in Louisiana, 2012 Flash Flood Warnings in Texas, 2012 Every 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.