Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 10, NWS Lake Charles, LA

March 9, 2016Beauregard Parish, Rapides Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Mar 9, 2016, 11:09 PM CST for Beauregard Parish, Rapides Parish, Vernon Parish, Louisiana. It was in force for 5 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: Mar 9, 2016, 11:09 PM CST (05:09 UTC)
Expired: Mar 10, 2016, 4:30 AM CST
In force: 5 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

Counties Beauregard Parish, LA, Rapides Parish, LA, Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 11 km from the middle of the area, began a volume at 05:10 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, 5.2 hours before the alert went out and 128 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: 1704 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 529 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

As transmitted.

711 
WGUS54 KLCH 100509
FFWLCH
LAC011-079-115-101030-
/O.NEW.KLCH.FF.W.0010.160310T0509Z-160310T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1109 PM CST WED MAR 9 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN VERNON PARISH IN WEST CENTRAL LOUISIANA...
  NORTHEASTERN BEAUREGARD PARISH IN SOUTHWESTERN LOUISIANA...
  NORTHWESTERN RAPIDES PARISH IN CENTRAL LOUISIANA...

* UNTIL 430 AM CST
    
* AT 1103 PM CST...DOPPLER RADAR INDICATED AREAS OF HEAVY RAIN
  CONTINUING TO DEVELOP ACROSS PARTS CENTRAL LOUISIANA. 3 TO 6
  INCHES OF RAIN HAVE FALLEN IN PARTS OF THIS AREA TODAY AND
  TONIGHT...WITH FLOODING ONGOING IN SOME LOCATIONS. RAINFALL RATES
  IN EXCESS OF ONE INCH PER HOUR COMBINED WITH HEAVY RAIN PRODUCING
  CELLS TRAINING OVER THE THE SAME AREAS WILL CONTINUE TO CREATE
  CONDITIONS FAVORABLE FOR FLASH FLOODING TO OCCUR.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALEXANDRIA...ROSEPINE...BOYCE...DE RIDDER...LENA...PITKIN...FORT
  POLK...HINESTON...SINGER...SLAGLE...DERIDDER...COLFAX...LACAMP...
  CRAVENS...FLATWOODS...CLIFTON...HUTTON...FULLERTON...TULLA AND
  OTIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3150 9268 3147 9271 3145 9268 3140 9269
      3142 9247 3068 9318 3060 9348 3061 9348
      3088 9337 3137 9303 3136 9303 3135 9295
      3137 9295 3137 9292 3139 9291 3152 9272

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 9, 7:11 PM CST	Flash Flood Warning	LCH	Beauregard	4 hr
Mar 9, 9:01 PM CST	Flash Flood Warning	LCH	Beauregard, Rapides, Vernon	119 min
Mar 9, 9:18 PM CST	Small Craft Advisory	LCH		27 hr
Mar 9, 10:32 PM CST	Flash Flood Warning	LCH	Beauregard, Vernon	6 hr
Mar 9, 11:57 PM CST	Flash Flood Warning	LCH	Rapides, Vernon	5 hr
Mar 10, 1:46 AM CST	River Flood Warning	LCH	Calcasieu	13 days
Mar 10, 4:40 AM CST	Flash Flood Warning	LCH	Beauregard, Vernon	8 hr
Mar 10, 5:45 AM CST	Special Weather Statement	LCH	Allen, Evangeline, Rapides	45 min
Mar 10, 5:52 AM CST	Special Marine Warning	LCH		53 min
Mar 10, 6:38 AM CST	Areal Flood Advisory	LCH	Allen, Beauregard, Rapides, Vernon	3 hr
Mar 10, 6:40 AM CST	Areal Flood Advisory	LCH	Calcasieu, Jefferson Davis	3 hr
Mar 10, 7:39 AM CST	Flash Flood Warning	LCH	Allen, Rapides, Vernon	5 hr
Mar 10, 7:51 AM CST	Special Weather Statement	LCH	Rapides	24 min
Mar 10, 8:55 AM CST	Special Weather Statement	LCH	Allen, Beauregard, Calcasieu, Jefferson Davis	50 min
Mar 10, 11:25 AM CST	Areal Flood Advisory	LCH	Acadia, Cameron, Evangeline, Lafayette, Saint Landry, Saint Martin and 1 more	3 hr
Mar 10, 11:43 AM CST	Special Weather Statement	LCH	Evangeline	47 min
Mar 10, 11:47 AM CST	Special Marine Warning	LCH		28 min
Mar 10, 12:23 PM CST	Special Weather Statement	LCH	Avoyelles	52 min
Mar 10, 12:36 PM CST	Areal Flood Warning	LCH	Allen, Avoyelles, Beauregard, Calcasieu, Rapides, Vernon	24 hr
Mar 10, 1:20 PM CST	River Flood Warning	LCH	Saint Martin, St. Mary	31 days

Nearby

Flash Flood Warnings in Louisiana, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.