Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 83, NWS Lake Charles, LA

August 13, 20166 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood warning at Aug 13, 2016, 6:22 PM CDT for 6 parishes in Louisiana. It was in force for 7 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
Aug 13, 2016, 6:22 PM CDT (23:22 UTC)
Expired
Aug 14, 2016, 1:45 AM CDT
In force
7 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Allen Parish, LA, Avoyelles Parish, LA, Evangeline Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 58 km from the middle of the area, began a volume at 23:25 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.

What was reported inside it

TimeReportWhereRemark
Aug 13, 9:38 PM CDTFLASH FLOODSimpson, LAFLOODING ALONG STATE HIGHWAYS 121, 465, AND 463 NEAR AND EAST OF SIMPSON AND PITKIN. WATER WAS ALSO NEARING ONE RESIDENCE NEAR SIMPSON.
Aug 13, 11:00 PM CDTFLOODClifton, LACLIFTON ROAD LA 118 FLOODED.

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

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 11.4 hours before the alert went out and 201 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, Shreveport, LA at 12:00Z on 2016-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 691 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2016-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
691 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
949 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

293 
WGUS54 KLCH 132322
FFWLCH
LAC003-009-039-079-097-115-140645-
/O.NEW.KLCH.FF.W.0083.160813T2322Z-160814T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
622 PM CDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VERNON PARISH IN WEST CENTRAL LOUISIANA...
  ALLEN PARISH IN SOUTHWESTERN LOUISIANA...
  RAPIDES PARISH IN CENTRAL LOUISIANA...
  CENTRAL EVANGELINE PARISH IN CENTRAL LOUISIANA...
  NORTH CENTRAL ST. LANDRY PARISH IN CENTRAL LOUISIANA...
  AVOYELLES PARISH IN CENTRAL LOUISIANA...

* UNTIL 145 AM CDT SUNDAY

* AT 621 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 1 TO 10 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALEXANDRIA...PINEVILLE...OAKDALE...LEESVILLE...MARKSVILLE...
  BUNKIE...KINDER...SIMMESPORT...OBERLIN...GLENMORA...BOYCE...
  MOREAUVILLE...ANACOCO...CHENEYVILLE...ELIZABETH...TURKEY CREEK...
  MORROW...BORDELONVILLE...LENA AND FORT POLK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3139 9266 3148 9220 3133 9208 3132 9200
      3122 9199 3123 9192 3130 9191 3120 9169
      3105 9172 3098 9180 3086 9182 3079 9177
      3073 9243 3044 9278 3044 9295 3089 9298
      3102 9327 3136 9339 3135 9295 3151 9271

$$

TINGLER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 7:03 PM CDTSpecial Weather StatementLCHVernon27 min
Aug 12, 7:06 PM CDTFlash Flood WarningLCHAcadia, Evangeline, Iberia, Lafayette, Saint Landry, Saint Martin and 1 more6 hr
Aug 12, 7:16 PM CDTSevere Thunderstorm WarningLCHAcadia, Cameron, Iberia, Jefferson Davis, Lafayette, Saint Landry and 2 more55 min
Aug 12, 8:03 PM CDTSpecial Weather StatementLCHBeauregard42 min
Aug 12, 8:10 PM CDTSpecial Marine WarningLCH95 min
Aug 12, 8:13 PM CDTSpecial Weather StatementLCHAllen47 min
Aug 12, 9:08 PM CDTFlash Flood WarningLCHAcadia, Evangeline, Saint Landry, Vermilion4 hr
Aug 12, 10:09 PM CDTFlash Flood WarningLCHIberia, Saint Martin, St. Mary3 hr
Aug 12, 10:19 PM CDTFlash Flood Warning EmergencyLCHIberia, Lafayette, Saint Martin, Vermilion5 hr
Aug 12, 10:28 PM CDTRiver Flood WarningLCHAcadia, Evangeline, Saint Landry9 days
Aug 12, 10:28 PM CDTRiver Flood WarningLCHRapides15 days
Aug 12, 10:28 PM CDTRiver Flood WarningLCHAcadia, Allen, Evangeline, Jefferson Davis5 days
Aug 12, 10:28 PM CDTRiver Flood WarningLCHAcadia, Jefferson Davis, Vermilion28 days
Aug 12, 10:36 PM CDTAreal Flood AdvisoryLCHAllen3 hr
Aug 13, 1:00 AM CDTFlash Flood WarningLCHAcadia, Evangeline, Iberia, Lafayette, Saint Landry, Saint Martin and 2 more7 hr
Aug 13, 2:32 AM CDTSpecial Weather StatementLCHAcadia, Lafayette58 min
Aug 13, 2:53 AM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Rapides5 hr
Aug 13, 3:52 AM CDTFlash Flood Warning EmergencyLCHIberia4 hr
Aug 13, 6:08 AM CDTAreal Flood AdvisoryLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more112 min
Aug 13, 6:27 AM CDTFlash Flood WarningLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more93 min
Aug 13, 6:35 AM CDTFlash Flood WarningLCHAllen, Beauregard, Calcasieu, Cameron, Jefferson Davis85 min
Aug 13, 7:56 AM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Iberia, Lafayette, Saint Landry, Saint Martin and 1 more6 hr
Aug 13, 7:59 AM CDTFlash Flood WarningLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more6 hr
Aug 13, 11:22 AM CDTRiver Flood WarningLCHAllen24 hr
Aug 13, 11:22 AM CDTRiver Flood WarningLCHAllen13 days
Aug 13, 11:22 AM CDTRiver Flood WarningLCHAllen, Jefferson Davis11 days
Aug 13, 11:22 AM CDTRiver Flood WarningLCHCalcasieu5 days
Aug 13, 11:22 AM CDTRiver Flood WarningLCHCalcasieu36 days
Aug 13, 11:22 AM CDTRiver Flood WarningLCHCalcasieu34 hr
Aug 13, 11:22 AM CDTRiver Flood WarningLCHAllen24 hr
Aug 13, 11:22 AM CDTRiver Flood WarningLCHBeauregard24 hr
Aug 13, 11:22 AM CDTRiver Flood WarningLCHVernon3 days
Aug 13, 1:56 PM CDTFlash Flood WarningLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Iberia and 6 more4 hr
Aug 13, 5:26 PM CDTSpecial Marine WarningLCH64 min
Aug 13, 5:53 PM CDTFlash Flood WarningLCHAcadia, Calcasieu, Cameron, Evangeline, Iberia, Jefferson Davis and 5 more8 hr

Nearby

Flash Flood Warnings in Louisiana, 2016Every flash flood warning in 2016

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; radar from the NEXRAD Level II archive.