Alert archive / Louisiana / Flash Flood Warnings in 2007

Flash Flood Warning 4, NWS Lake Charles, LA

September 13, 2007Acadia Parish, Jefferson Davis Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Sep 13, 2007, 2:16 AM CDT for Acadia Parish, Jefferson Davis Parish, Louisiana. 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
Sep 13, 2007, 2:16 AM CDT (07:16 UTC)
Expired
Sep 13, 2007, 6:15 AM CDT
In force
4 hr
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text
Flood severity
None

Counties Acadia Parish, LA, Jefferson Davis Parish, LA

The radar

The Lake Charles radar (KLCH), 39 km from the middle of the area, began a volume at 07:16 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.3 hours before the alert went out and 37 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 2007-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 134 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 2007-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.1939Sfc1 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
134 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
755 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLCH 130717
FFWLCH
LAC001-053-131115-
/X.NEW.KLCH.FF.W.0004.070913T0716Z-070913T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
216 AM CDT THU SEP 13 2007

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME WEST CENTRAL ACADIA PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF MERMENTAU...
  JEFFERSON DAVIS PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES THE CITIES OF...WELSH...LAKE ARTHUR...JENNINGS...
  FENTON...ELTON...

* UNTIL 615 AM CDT

* AT 210 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  LACASSINE...ROANOKE AND HATHAWAY.

ADDITIONAL RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3020 9258 3010 9262 3005 9272 3005 9297
      3005 9297 3010 9287 3015 9287 3017 9299
      3039 9301 3040 9312 3044 9312 3044 9279
      3049 9276 3049 9262

$$

06

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 10:44 PM CDTRiver Flood WarningLCHCalcasieu22 hr
Sep 12, 10:44 PM CDTRiver Flood WarningLCHCalcasieu22 hr
Sep 12, 10:56 PM CDTInland Tropical Storm WarningLCHAllen, Beauregard, Rapides, Vernon14 hr
Sep 13, 12:59 AM CDTInland Hurricane WarningLCH5 hr
Sep 13, 2:12 AM CDTFlash Flood WarningLCHCalcasieu, Cameron, Jefferson Davis, Vermilion4 hr
Sep 13, 4:15 AM CDTTornado WarningLCHVermilion30 min
Sep 13, 4:56 AM CDTFlash Flood WarningLCHAcadia, Lafayette, Saint Landry, Vermilion4 hr
Sep 13, 6:04 AM CDTFlash Flood WarningLCHBeauregard4 hr
Sep 13, 6:13 AM CDTFlash Flood WarningLCHCalcasieu, Jefferson Davis4 hr
Sep 13, 9:29 AM CDTRiver Flood WarningLCHRapides4 days
Sep 13, 9:29 AM CDTRiver Flood WarningLCHCalcasieu11 hr
Sep 13, 9:29 AM CDTRiver Flood WarningLCHBeauregard, Calcasieu6 days
Sep 13, 9:59 AM CDTFlash Flood WarningLCHBeauregard, Vernon3 hr
Sep 13, 12:49 PM CDTLake Wind AdvisoryLCHAllen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more3 hr
Sep 13, 1:41 PM CDTCoastal Flood WarningLCHSaint Martin2 hr

Nearby

Flash Flood Warnings in Louisiana, 2007Every flash flood warning in 2007

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.