Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 41, NWS Lake Charles, LA

May 1, 2016Calcasieu Parish, Cameron Parish, Jefferson Davis Parish, Louisiana; Orange County, Texas

NWS Lake Charles, LA issued this flash flood warning at May 1, 2016, 11:05 AM CDT for Calcasieu Parish, Cameron Parish, Jefferson Davis Parish, Louisiana; Orange County, Texas. It was in force for 11 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
May 1, 2016, 11:05 AM CDT (16:05 UTC)
Expired
May 1, 2016, 9:59 PM CDT
In force
11 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Calcasieu Parish, LA, Cameron Parish, LA, Jefferson Davis Parish, LA, Orange County, TX

The radar

The Lake Charles radar (KLCH), 17 km from the middle of the area, began a volume at 16:04 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
May 1, 11:40 AM CDTFLASH FLOOD1 Nnw Lake Charles, LANOW VIDEO OF OTHER VEHICLE BEING SWEPT OFF THE ROAD AT BANK AND 7TH STREETS IN LAKE CHARLES.
May 1, 1:00 PM CDTFLASH FLOOD6 S Lake Charles, LAREPORTS WATER CURRENTLY OVER TANK FARM ROAD

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 12:00Z, 4.1 hours before the alert went out and 16 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 12:00Z on 2016-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 324 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 12:00Z on 2016-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
324 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
893 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

As transmitted.

237 
WGUS54 KLCH 011605
FFWLCH
LAC019-023-053-TXC361-012200-
/O.NEW.KLCH.FF.W.0041.160501T1605Z-160501T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1105 AM CDT SUN MAY 1 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CAMERON PARISH IN SOUTHWESTERN LOUISIANA...
  JEFFERSON DAVIS PARISH IN SOUTHWESTERN LOUISIANA...
  CALCASIEU PARISH IN SOUTHWESTERN LOUISIANA...
  EASTERN ORANGE COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 500 PM CDT SUNDAY

* AT 1059 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  HEAVY RAIN FALLING ACROSS THE WARNED AREA. THREE TO FIVE INCHES OF
  RAIN HAVE FALLEN IN THE PAST 12 HOURS. THIS IS IN ADDITION TO
  SEVERAL INCHES OF RAIN THAT OCCURRED OVER THE AREA YESTERDAY. FLASH
  FLOODING IS ALREADY OCCURRING WITH SEVERAL ROADS IN THE AREA
  FLOODED. WHILE THE RAIN HAS SLACKED OFF FOR THE TIME BEING OVER
  MUCH OF THE WARNED AREA...ADDITIONAL SHOWERS AND THUNDERSTORMS ARE
  DEVELOPING OVER PORTIONS OF ORANGE COUNTY AND CALCASIEU PARISH. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAKE CHARLES...SULPHUR...ORANGE...JENNINGS...WESTLAKE...WEST ORANGE...
  WELSH...VINTON...IOWA...LAKE ARTHUR...FENTON...MOSS BLUFF...LAKE CHARLES
  REGIONAL AIRPORT...STARKS...LACASSINE NATIONAL WILDLIFE REFUGE...
  HAYES...GRAND LAKE...KLONDIKE...GILLIS AND BULLER.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE DELAY TRAVEL IF POSSIBLE. THERE HAVE BEEN REPORTS OF CARS
FLOODING OUT...OR THE WAKE FROM PASSING MOTORISTS CAUSING ADDITIONAL
PROPERTY DAMAGE. 

&&

LAT...LON 2999 9327 3005 9329 3005 9333 3000 9334
      3001 9380 3024 9381 3025 9371 3038 9376
      3040 9313 3044 9306 3044 9278 3047 9263
      3043 9260 3038 9263 3023 9262 3020 9259
      3009 9262 3004 9272 3004 9262 2997 9262

$$

27
2 follow-up statements
288 
WGUS54 KLCH 012013
FFWLCH
LAC019-023-053-TXC361-020400-
/O.EXT.KLCH.FF.W.0041.000000T0000Z-160502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
313 PM CDT SUN MAY 1 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CAMERON PARISH IN SOUTHWESTERN LOUISIANA...
  JEFFERSON DAVIS PARISH IN SOUTHWESTERN LOUISIANA...
  CALCASIEU PARISH IN SOUTHWESTERN LOUISIANA...
  EASTERN ORANGE COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 1100 PM CDT SUNDAY

* AT 312 PM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  HEAVY RAIN FALLING ACROSS THE WARNED AREA. 4 TO 6 INCHES OF RAIN
  HAS FALLEN ACROSS THE PAST 12 HOURS...WITH ISOLATED LOCATIONS OF 6
  TO 8 INCHES ACROSS NORTHERN LAKE CHARLES TO WESTLAKE...AND JUST
  EAST OF THE LAKE CHARLES AIRPORT TO BELL CITY. THIS IS IN ADDITION
  TO SEVERAL INCHES OF RAIN THAT OCCURRED OVER THE AREA YESTERDAY.
  FLASH FLOODING IS ALREADY OCCURRING WITH SEVERAL ROADS IN THE AREA
  FLOODED. OVER PORTIONS OF ORANGE COUNTY AND CALCASIEU PARISH. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... LAKE
  CHARLES...SULPHUR...ORANGE...JENNINGS...WESTLAKE...WEST ORANGE...
  WELSH...VINTON...IOWA...LAKE ARTHUR...FENTON...MOSS BLUFF...LAKE
  CHARLES REGIONAL AIRPORT...STARKS...LACASSINE NATIONAL WILDLIFE
  REFUGE... HAYES...GRAND LAKE...KLONDIKE...GILLIS AND BULLER.

ADDITIONAL SHOWERS AND THUNDERSTORMS ARE RE-DEVELOPING
ACROSSCALCASIEU AND JEFF DAVIS PARISHES...AND HAS THE POTENTIAL OF
GIVING2 TO 4 MORE INCHES OF RAINFALL THIS AFTERNOON AND EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE DELAY TRAVEL IF POSSIBLE. THERE HAVE BEEN REPORTS OF CARS
FLOODING OUT...OR THE WAKE FROM PASSING MOTORISTS CAUSING ADDITIONAL
PROPERTY DAMAGE.

&&

LAT...LON 2999 9327 3005 9329 3005 9333 3000 9334
      3001 9380 3024 9381 3025 9371 3038 9376
      3040 9313 3044 9306 3044 9278 3047 9263
      3043 9260 3038 9263 3023 9262 3020 9259
      3009 9262 3004 9272 3004 9262 2997 9262

$$

LANDRENEAU
840 
WGUS74 KLCH 020259
FFSLCH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
959 PM CDT SUN MAY 1 2016

LAC019-023-053-TXC361-020308-
/O.CAN.KLCH.FF.W.0041.000000T0000Z-160502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMERON LA-JEFFERSON DAVIS LA-CALCASIEU LA-ORANGE TX-
959 PM CDT SUN MAY 1 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN CAMERON...JEFFERSON
DAVIS...CALCASIEU PARISHES IN SOUTHWESTERN LOUISIANA AND EASTERN
ORANGE COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 2999 9327 3005 9329 3005 9333 3000 9334
      3001 9380 3024 9381 3025 9371 3038 9376
      3040 9313 3044 9306 3044 9278 3047 9263
      3043 9260 3038 9263 3023 9262 3020 9259
      3009 9262 3004 9272 3004 9262 2997 9262

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 3:07 AM CDTSpecial Weather StatementLCHAcadia38 min
May 1, 3:16 AM CDTSevere Thunderstorm WarningLCHAcadia, Lafayette, Saint Landry44 min
May 1, 3:34 AM CDTTornado WarningLCHAcadia, Lafayette26 min
May 1, 3:58 AM CDTSevere Thunderstorm WarningLCHAcadia, Lafayette, Saint Landry62 min
May 1, 4:09 AM CDTSpecial Weather StatementLCHCalcasieu66 min
May 1, 4:36 AM CDTSevere Thunderstorm WarningLCHCalcasieu39 min
May 1, 4:59 AM CDTSevere Thunderstorm WarningLCHLafayette, Saint Landry, Saint Martin61 min
May 1, 5:01 AM CDTSpecial Weather StatementLCHAllen59 min
May 1, 5:14 AM CDTSpecial Weather StatementLCHCalcasieu61 min
May 1, 5:19 AM CDTCoastal Flood AdvisoryLCHCameron12 hr
May 1, 5:44 AM CDTAreal Flood AdvisoryLCHCalcasieu3 hr
May 1, 5:51 AM CDTSevere Thunderstorm WarningLCHSaint Landry, Saint Martin39 min
May 1, 5:56 AM CDTSpecial Weather StatementLCHVernon49 min
May 1, 6:09 AM CDTSpecial Weather StatementLCHCalcasieu51 min
May 1, 6:32 AM CDTSpecial Weather StatementLCHSaint Martin28 min
May 1, 6:57 AM CDTSpecial Weather StatementLCHJefferson Davis48 min
May 1, 7:10 AM CDTAreal Flood AdvisoryLCHAcadia, Jefferson Davis3 hr
May 1, 7:23 AM CDTAreal Flood AdvisoryLCHAcadia, Lafayette, Saint Landry, Saint Martin3 hr
May 1, 7:32 AM CDTFlash Flood WarningLCHAcadia, Calcasieu, Jefferson Davis, Lafayette, Saint Landry, Saint Martin4 hr
May 1, 7:58 AM CDTSpecial Weather StatementLCHLafayette62 min
May 1, 8:02 AM CDTAreal Flood AdvisoryLCHCalcasieu118 min
May 1, 8:11 AM CDTRiver Flood WarningLCHLafayette, Saint Landry, Saint Martin4 days
May 1, 8:11 AM CDTRiver Flood WarningLCHLafayette, Vermilion11 days
May 1, 8:34 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Jefferson Davis3 hr
May 1, 9:41 AM CDTRiver Flood WarningLCHAllen, Jefferson Davis49 hr
May 1, 9:41 AM CDTRiver Flood WarningLCHCalcasieu6 days
May 1, 10:14 AM CDTSpecial Weather StatementLCHCameron, Iberia, St. Mary, Vermilion91 min
May 1, 10:57 AM CDTFlash Flood WarningLCHAcadia, Iberia, Lafayette, Saint Landry, Saint Martin, St. Mary and 1 more11 hr
May 1, 3:23 PM CDTSpecial Marine WarningLCH2 hr
May 1, 4:40 PM CDTSpecial Marine WarningLCH35 min
May 1, 4:57 PM CDTSpecial Weather StatementLCHJefferson Davis48 min
May 1, 3:19 AM CDTSpecial Weather StatementLCHJefferson56 min
May 1, 4:19 AM CDTSpecial Weather StatementLCHOrange26 min
May 1, 6:38 AM CDTAreal Flood AdvisoryLCHHardin, Jasper, Jefferson, Orange3 hr
May 1, 12:45 PM CDTFlash Flood WarningLCHJefferson, Orange4 hr

Nearby

Flash Flood Warnings in Louisiana, 2016Flash Flood Warnings in Texas, 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.