Alert archive / Louisiana / Flash Flood Warnings in 2012

Flash Flood Warning 7, NWS Lake Charles, LA

February 15, 2012Vernon Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Feb 15, 2012, 6:21 PM CST for Vernon Parish, Louisiana. 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: Feb 15, 2012, 6:21 PM CST (00:21 UTC)
Expired: Feb 15, 2012, 9:00 PM CST
In force: 3 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

County Vernon Parish, LA

What was reported inside it

Time	Report	Where	Remark
Feb 15, 6:21 PM CST	FLASH FLOOD	10 Nnw Pitkin, LA	USGS WATER LEVEL GAUGE INDICATES WATER IS TWO FEET OVER THE FOREST ROAD ON THE WEST FORK OF SIX MILE CREEK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.4 hours before the alert went out and 98 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: 1289 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 439 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 208 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

856 
WGUS54 KLCH 160021
FFWLCH
LAC115-160300-
/O.NEW.KLCH.FF.W.0007.120216T0021Z-120216T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN VERNON PARISH IN WEST CENTRAL LOUISIANA...

* UNTIL 900 PM CST

* AT 614 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR AND RAIN    
  GAUGE REPORTS INDICATED RAINFALL AMOUNTS OF 2 TO 3 INCHES HAVE     
  FALLEN ACROSS SOUTHEASTERN VERNON PARISH. AT 6 PM...STREAM GAUGE   
  REPORTS INDICATE THAT FLOODING IS OCCURING WITH TWO FEET OF WATER  
  OVER SECONDARY ROADS ON THE WEST FORK OF SIX MILE CREEK. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...PITKIN...
  ROSEPINE...CRAVENS...FULLERTON...LACAMP AND LEANDER.

  LOCAL DRAINAGES THAT WILL EXPIERENCE FLOODING INCLUDE BUT ARE NOT  
  LIMITED TO SIX MILE CREEK...BIRDS CREEK AND WHISKY CHITTO CREEK IN 
  VERNON PARISH.

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 3088 9282 3089 9341 3107 9317 3123 9283

$$
BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 6:07 PM CST	Areal Flood Advisory	LCH	Allen, Beauregard, Vernon	3 hr
Feb 15, 6:51 PM CST	Areal Flood Advisory	LCH	Avoyelles, Evangeline, Rapides	114 min
Feb 15, 7:53 PM CST	River Flood Warning	LCH	Rapides	12 days
Feb 15, 8:36 PM CST	Areal Flood Advisory	LCH	Avoyelles, Evangeline, Saint Landry	114 min
Feb 15, 11:25 PM CST	Dense Fog Advisory	LCH	Allen, Beauregard, Cameron, Vernon	10 hr
Feb 16, 12:50 AM CST	Marine Dense Fog Advisory	LCH		8 hr
Feb 16, 9:32 AM CST	River Flood Warning	LCH	Allen	6 days
Feb 16, 9:32 AM CST	River Flood Warning	LCH	Allen	11 days
Feb 16, 9:32 AM CST	River Flood Warning	LCH	Allen, Jefferson Davis	9 days
Feb 16, 9:32 AM CST	River Flood Warning	LCH	Beauregard	4 days
Feb 16, 9:32 AM CST	River Flood Warning	LCH	Allen	5 days

Nearby

Flash Flood Warnings in Louisiana, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.