Alert archive / Louisiana / Flash Flood Warnings in 2009

Flash Flood Warning 39, NWS Lake Charles, LA

October 30, 2009Beauregard Parish, Calcasieu Parish, Vernon Parish, Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this flash flood warning at Oct 30, 2009, 5:57 AM CDT for Beauregard Parish, Calcasieu Parish, Vernon Parish, Louisiana; Newton County, Texas. It was in force for 4 hr. 2 reports 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
Oct 30, 2009, 5:57 AM CDT (10:57 UTC)
Expired
Oct 30, 2009, 9:45 AM CDT
In force
4 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Beauregard Parish, LA, Calcasieu Parish, LA, Vernon Parish, LA, Newton County, TX

What was reported inside it

TimeReportWhereRemark
Oct 30, 8:43 AM CDTFLASH FLOODDeridder, LAFOUR ROADS ARE REPORTED TO BE CLOSED IN BEAUREGARD PARISH.
Oct 30, 8:43 AM CDTFLASH FLOODLeesville, LASEVERAL ROADS REMAIN CLOSED IN VERNON PARISH.

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, 11.0 hours before the alert went out and 104 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 00:00Z on 2009-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1978 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 00:00Z on 2009-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 292 square meters per square second.19395878Sfc1 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
1978 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
292 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
3.9
Supercell composite
16.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLCH 301057
FFWLCH
LAC011-019-115-TXC351-301445-
/O.NEW.KLCH.FF.W.0039.091030T1057Z-091030T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
557 AM CDT FRI OCT 30 2009

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN NEWTON COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES THE CITIES OF...DEWEYVILLE...BON WEIR...
  WESTERN BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES THE CITIES OF...SINGER...MERRYVILLE...FIELDS...DE
  RIDDER...
  NORTHWESTERN CALCASIEU PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF STARKS...
  WESTERN VERNON PARISH IN WEST CENTRAL LOUISIANA...
  THIS INCLUDES THE CITIES OF...SLAGLE...ROSEPINE...LEESVILLE...FORT
  POLK...ANACOCO...

* UNTIL 945 AM CDT

* AT 547 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED 
TO INDICATE MODERATE TO OCCASIONALLY HEAVY RAINFALL FALLING OVER 
AREAS THAT HAS RECEIVED TWO TO THREE INCHES OF RAINFALL SINCE 
MIDNIGHT. AN ADDITIONAL ONE TO TWO INCHES WITH ISOLATED AMOUNTS UP 
TO THREE INCHES IS POSSIBLE THROUGH THE NEXT FEW HOURS.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. MOVE TO HIGHER GROUND.

&&

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT
337-477-5285 EXTENSION 1.

LAT...LON 3137 9298 3025 9358 3024 9390 3131 9343
      3137 9339 3138 9338

$$

LANDRENEAU
1 follow-up statement
000 
WGUS74 KLCH 301410
FFSLCH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
910 AM CDT FRI OCT 30 2009

LAC011-019-115-TXC351-301445-
/O.CON.KLCH.FF.W.0039.000000T0000Z-091030T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VERNON LA-BEAUREGARD LA-CALCASIEU LA-NEWTON TX-
910 AM CDT FRI OCT 30 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
SOUTHERN NEWTON COUNTY...AND NORTHWESTERN CALCASIEU...WESTERN
BEAUREGARD AND WESTERN VERNON PARISHES...

AT 845 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF STEADY RAIN FROM EAST OF LEESVILLE TO NEAR LAKE 
CHARLES. TO THE WEST OF THE LINE...THE RAINFALL IS MORE SCATTERED. 
GAGE AND ESTIMATED RADAR RAINFALL AMOUNTS SINCE 2 AM INDICATE THAT 
AN ADDITIONAL 2 TO 3 INCHES OF RAINFALL HAS OCCURRED ON TOP OF WHAT 
HAD ALREADY OCCURRED BEFORE 2 AM. THERE ARE REPORTS OF SEVERAL ROADS 
CLOSED IN VERNON AND BEAUREGARD PARISHES. WHILE THE RAINFALL IS 
BEGINNING TO COME TO A SLOW END...A CONSIDERABLE AMOUNT OF RAIN HAS 
ALREADY OCCURRED AND THE CREEKS AND STREAMS WILL CONTINUE TO FLOOD 
FOR THE NEXT SEVERAL HOURS. AN ADDITIONAL FLASH FLOOD WARNING WILL 
LIKELY BE NEEDED. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SLAGLE...NEW 
LLANO...LEESVILLE...FORT POLK AND ANACOCO.

SOME OF THE DRAINAGES IN VERNON PARISH THAT ARE LIKELY FLOODED 
INCLUDE BUT ARE NOT LIMITED TO...COMRADE CREEK...LITTLE PRARIE 
CREEK...BUNDICK CREEK...COOPER CREEK...PARMER CREEK AND THE 
HEADWATERS OF THE CALCASIEU RIVER.

DRAINAGES IN BEAUREGARD PARISH THAT ARE LIKELY FLOODED INCLLUDE BUT 
NOT LIMITED TO...BRUSHY BRANCH...BECKWITH CREEK AND SPRING CREEK. 



PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF AN ADDITIONAL ONE HALF TO ONE INCH OF 
RAIN IS POSSIBLE IN THE WARNED AREA.

&&

LAT...LON 3137 9298 3025 9358 3024 9390 3131 9343
      3137 9339 3138 9338

$$

BRAZZELL

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 29, 8:45 PM CDTRiver Flood WarningLCHVernon4 days
Oct 29, 8:45 PM CDTRiver Flood WarningLCHBeauregard, Calcasieu64 days
Oct 29, 9:49 PM CDTRiver Flood WarningLCHBeauregard4 days
Oct 29, 9:49 PM CDTRiver Flood WarningLCHCalcasieu38 hr
Oct 29, 9:49 PM CDTRiver Flood WarningLCHAcadia, Jefferson Davis12 hr
Oct 29, 11:59 PM CDTFlash Flood WarningLCHVernon5 hr
Oct 30, 12:53 AM CDTFlash Flood WarningLCHBeauregard3 hr
Oct 30, 9:35 AM CDTAreal Flood AdvisoryLCHAllen, Beauregard, Calcasieu, Cameron, Jefferson Davis, Rapides and 1 more4 hr
Oct 30, 9:45 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Vernon4 hr
Oct 30, 10:07 AM CDTRiver Flood WarningLCHBeauregard, Vernon10 days
Oct 30, 1:43 PM CDTAreal Flood AdvisoryLCHAllen, Avoyelles, Beauregard, Calcasieu, Cameron, Evangeline and 3 more4 hr
Oct 30, 1:58 PM CDTAreal Flood WarningLCHBeauregard, Calcasieu, Vernon6 hr
Oct 30, 2:31 PM CDTSpecial Marine WarningLCH44 min
Oct 30, 3:18 PM CDTSpecial Marine WarningLCH57 min
Oct 30, 5:09 PM CDTAreal Flood AdvisoryLCHAcadia, Avoyelles, Evangeline, Jefferson Davis, Lafayette, Saint Landry and 2 more6 hr
Oct 29, 9:02 PM CDTRiver Flood WarningLCHJefferson, Orange13 hr
Oct 30, 5:20 AM CDTAreal Flood AdvisoryLCHHardin, Jasper, Jefferson, Newton, Orange3 hr
Oct 30, 6:23 AM CDTFlash Flood WarningLCHJefferson, Orange3 hr
Oct 30, 9:20 AM CDTAreal Flood AdvisoryLCHJasper, Jefferson, Newton, Orange4 hr

Nearby

Flash Flood Warnings in Louisiana, 2009Flash Flood Warnings in Texas, 2009Every flash flood warning in 2009

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.