Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 40, NWS Lake Charles, LA

May 1, 20167 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood warning at May 1, 2016, 10:57 AM CDT for 7 parishes in Louisiana. It was in force for 11 hr. 6 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, 10:57 AM CDT (15:57 UTC)
Expired
May 1, 2016, 10:00 PM CDT
In force
11 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Acadia Parish, LA, Iberia Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 123 km from the middle of the area, began a volume at 15:58 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, 11:10 AM CDTFLASH FLOODNew Iberia, LAIBERIA PARISH SHERIFFS OFFICE REPORTS WATER ON ADMIRAL DOYLE BETWEEN HOPKINS AND ST JUDE...ST PETER AT BANK AVE...JEFFERSON TERRACE NORTH OF ADMIRAL DOYLE...SOUTHPORT.
May 1, 11:36 AM CDTFLASH FLOOD1 Ene Cankton, LAPICTURE OF SIGNIFCANT FLOODING ON DOMENGEAUX RD. NEAR CANKTON
May 1, 11:52 AM CDTFLASH FLOOD1 Wnw Abbeville, LAPICTURE OF STREETS FLOODING IN ABBEVILLE.
May 1, 11:53 AM CDTFLASH FLOOD2 Sse Cecilia, LAPICTURE OF SIGNIFICANT FLOODING AROUND HEBERT'S GROCERY
May 1, 12:13 PM CDTFLASH FLOOD1 N Mire, LALA 95 FLOODED
May 1, 12:30 PM CDTFLASH FLOOD1 Wsw Abbeville, LAPICTURE OF FLOODING IN ABBEVILLE.

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, 4.0 hours before the alert went out and 121 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°0°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.

730 
WGUS54 KLCH 011557
FFWLCH
LAC001-045-055-097-099-101-113-012200-
/O.NEW.KLCH.FF.W.0040.160501T1557Z-160501T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1057 AM CDT SUN MAY 1 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VERMILION PARISH IN SOUTHWESTERN LOUISIANA...
  ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA...
  IBERIA PARISH IN SOUTH CENTRAL LOUISIANA...
  NORTHWESTERN ST. MARY PARISH IN SOUTH CENTRAL LOUISIANA...
  SOUTHERN ST. LANDRY PARISH IN CENTRAL LOUISIANA...
  ACADIA PARISH IN SOUTHWESTERN LOUISIANA...
  LAFAYETTE PARISH IN SOUTH CENTRAL LOUISIANA...

* UNTIL 500 PM CDT SUNDAY

* AT 1053 AM CDT...DOPPLER RADAR INDICATES THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. ANYWHERE FROM 6 TO 9 INCHES OF
  RAIN HAVE FALLEN SINCE MIDNIGHT ACROSS PORTIONS OF SOUTHERN SAINT
  LANDRY AND NORTHERN LAFAYETTE AND SAINT MARTIN PARISHES...WITH 3
  TO 5 INCHES ELSEHHERE IN THE WARNED AREA. FLASH FLOODING IS
  OCCURRING. NUMEROUS REPORTS OF MAJOR ROADS CLOSED INCLUDING I-49
  AND SERVICE ROADS...LA 182...AND MANY PARISH ROADS TOO NUMEROUS TO
  MENTION HERE. SEVERAL REPORTS OF WATER IN HOMES AS WELL. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAFAYETTE...NEW IBERIA...OPELOUSAS...CROWLEY...ABBEVILLE...CATAHOULA...
  EUNICE...SCOTT...BREAUX BRIDGE...RAYNE...FRANKLIN...CARENCRO...ST.
  MARTINVILLE...JEANERETTE...KAPLAN...CHURCH POINT...IOTA...GUEYDAN...
  LEONVILLE AND ARNAUDVILLE.

SHOWERS AND THUNDERSTORMS CONTINUE TO TRAIN FROM WEST TO EAST OVER
THE WARNED AREA...AND ADDITIONAL RAINFALL OF 2 TO 4 INCHES IS
POSSIBLE THE NEXT SEVERAL HOURS...OR UNTIL THIS SYSTEM SHIFTS
FURTHER SOUTH OR DISSIPATES LATER THIS AFTERNOON OR EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 2975 9188 2978 9183 2979 9182 2984 9196
      2973 9220 2972 9219 2970 9212 2958 9262
      3007 9265 3020 9259 3048 9263 3057 9226
      3057 9176 3050 9175 3044 9164 3026 9159
      3023 9147 3011 9147 3004 9122 2991 9121

$$

LANDRENEAU
2 follow-up statements
537 
WGUS54 KLCH 012135
FFWLCH
LAC001-023-039-045-055-097-099-101-113-020400-
/O.EXT.KLCH.FF.W.0040.000000T0000Z-160502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN CAMERON PARISH IN SOUTHWESTERN LOUISIANA...
  VERMILION PARISH IN SOUTHWESTERN LOUISIANA...
  ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA...
  IBERIA PARISH IN SOUTH CENTRAL LOUISIANA...
  NORTHWESTERN ST. MARY PARISH IN SOUTH CENTRAL LOUISIANA...
  SOUTHEASTERN EVANGELINE PARISH IN CENTRAL LOUISIANA...
  SOUTHERN ST. LANDRY PARISH IN CENTRAL LOUISIANA...
  ACADIA PARISH IN SOUTHWESTERN LOUISIANA...
  LAFAYETTE PARISH IN SOUTH CENTRAL LOUISIANA...

* UNTIL 1100 PM CDT SUNDAY

* AT 427 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS OVER
  PORTIONS OF SOUTHWEST LOUISIANA MOVING EASTWARD TOWARDS ACADIANA.
  RADAR ESTIMATES THAT UPWARDS OF 9 INCHES HAVE ALREADY FALLEN TODAY
  WITHIN THE WARNED AREA...AND AN ADDITIONAL 1 TO 2 INCHES WILL BE
  POSSIBLE WITH THESE STORMS. REPORTS FROM LOCAL MEDIA AND LAW
  ENFORCEMENT INDICATE THAT FLASH FLOODING IS ALREADY OCCURRING...
  AND THESE ADDITIONAL RAINS WILL ONLY AGGRAVATE THE SITUATION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAFAYETTE...NEW IBERIA...OPELOUSAS...CROWLEY...ABBEVILLE...CATAHOULA...
  EUNICE...SCOTT...BREAUX BRIDGE...RAYNE...FRANKLIN...CARENCRO...ST.
  MARTINVILLE...JEANERETTE...KAPLAN...CHURCH POINT...IOTA...GUEYDAN...
  LEONVILLE AND ARNAUDVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TRAVEL WITHIN THE WARNED AREA IS NOT RECOMMENDED AT THIS TIME. DO
NOT DRIVE THROUGH FLOODED ROADWAYS...TURN AROUND DON'T DROWN!!!

&&

LAT...LON 2975 9188 2978 9183 2979 9182 2984 9196
      2973 9220 2972 9219 2970 9212 2958 9262
      3007 9265 3020 9259 3048 9263 3057 9226
      3057 9176 3050 9175 3044 9164 3026 9159
      3023 9147 3011 9147 3004 9122 2991 9121

$$

25
622 
WGUS74 KLCH 020300
FFSLCH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1000 PM CDT SUN MAY 1 2016

LAC001-045-055-097-099-101-113-020310-
/O.CAN.KLCH.FF.W.0040.000000T0000Z-160502T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VERMILION LA-ST. MARTIN LA-IBERIA LA-ST. MARY LA-ST. LANDRY LA-
ACADIA LA-LAFAYETTE LA-
1000 PM CDT SUN MAY 1 2016

...THE FLASH FLOOD WARNING FOR VERMILION...ST. MARTIN...IBERIA...
NORTHWESTERN ST. MARY...SOUTHERN ST. LANDRY...ACADIA AND LAFAYETTE
PARISHES IS CANCELLED...

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

LAT...LON 2975 9188 2978 9183 2979 9182 2984 9196
      2973 9220 2972 9219 2970 9212 2958 9262
      3007 9265 3020 9259 3048 9263 3057 9226
      3057 9176 3050 9175 3044 9164 3026 9159
      3023 9147 3011 9147 3004 9122 2991 9121

$$

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, 11:05 AM CDTFlash Flood WarningLCHCalcasieu, Cameron, Jefferson Davis11 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

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.