Alert archive / Louisiana / Flash Flood Warnings in 2012
Flash Flood Warning 23, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Mar 20, 2012, 3:18 PM CDT for Orange County, Texas; Beauregard Parish, Calcasieu Parish, Louisiana. It was in force for 6 hr. 9 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
- Mar 20, 2012, 3:18 PM CDT (20:18 UTC)
- Expired
- Mar 20, 2012, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Beauregard Parish, LA, Calcasieu Parish, LA, Orange County, TX
The radar
The Lake Charles radar (KLCH), 46 km from the middle of the area, began a volume at 20:18 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 20, 4:05 PM CDT | FLASH FLOOD | Vinton, LA | CHIEF OF POLICE REPORTED 6.00 INCHES OF RAINFALL FOR THE DURATION OF THE STORM. |
| Mar 20, 4:13 PM CDT | FLASH FLOOD | Vinton, LA | WATER OVER THE CURB ON HARGE STREET. |
| Mar 20, 4:13 PM CDT | HEAVY RAIN 3.75 | Vinton, LA | |
| Mar 20, 4:13 PM CDT | HEAVY RAIN 4.3 | Vinton, LA | |
| Mar 20, 4:13 PM CDT | HEAVY RAIN 5.5 | Starks, LA | |
| Mar 20, 5:30 PM CDT | FLASH FLOOD | 2 Nw Dequincy, LA | WATER COVERING THE ROAD ON PINDER LANE IN DEQUINCY |
| Mar 20, 6:58 PM CDT | FLASH FLOOD | Dequincy, LA | SEVERAL HOMES IN DEQUINCY HAVE HAVE BEEN FLOODED AND POLICE ARE ASKING PUBLIC TO STAY OFF ROADS AS TRAFFIC IS CREATING WAKES IN FLOOD WATERS |
| Mar 20, 6:59 PM CDT | HEAVY RAIN 4.33 | De Quincy, LA | CALCASIEU PARISH RAIN GAUGE NETWORK INDICATES 4.33 IN THE PAST THREE HOURS. |
| Mar 20, 8:21 PM CDT | FLASH FLOOD | Vinton, LA | CHIEF OF POLICE REPORTED 6.00 INCHES OF RAINFALL FOR THE DURATION OF THE STORM. |
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, 8.3 hours before the alert went out and 47 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.
- Mixed-layer CAPE
- 1368 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.8
The text
As transmitted, in the capitals the NWS used until 2016.
326
WGUS54 KLCH 202018
FFWLCH
LAC011-019-TXC361-210200-
/O.NEW.KLCH.FF.W.0023.120320T2018Z-120321T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
318 PM CDT TUE MAR 20 2012
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN ORANGE COUNTY IN SOUTHEAST TEXAS...
SOUTHWESTERN BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
WESTERN CALCASIEU PARISH IN SOUTHWEST LOUISIANA...
* UNTIL 900 PM CDT
* AT 313 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR ESTIMATES OF 1 TO 3.5 INCHES OF RAIN HAS FALLEN
OVER THE PAST HOUR. THIS LINE OF THUNDERSTORMS HAS SLOWED DOWN
CONSIDERABLY AND CONTINUE TO MOVE OVER THE SAME GENERAL AREA. AN
ADDITIONAL 2 TO 4 INCHES ARE EXPECTED OVER THE NEXT 1 TO 2 HOURS.
MINOR FLOODING OF ROADS HAVE ALREADY BEEN RECEIVED FROM VINTON.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...DE
QUINCY...STARKS...SULPHUR...VINTON...BUHLER...CARLYSS...EDGERLY AND
LUNITA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3006 9376 3024 9373 3025 9371 3029 9371
3030 9372 3043 9371 3044 9370 3047 9371
3051 9333 3006 9337
$$1 follow-up statement
268
WGUS74 KLCH 202205
FFSLCH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
505 PM CDT TUE MAR 20 2012
LAC011-019-TXC361-210200-
/O.CON.KLCH.FF.W.0023.000000T0000Z-120321T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEAUREGARD LA-CALCASIEU LA-ORANGE TX-
505 PM CDT TUE MAR 20 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN ORANGE
COUNTY...AND WESTERN CALCASIEU AND SOUTHWESTERN BEAUREGARD PARISHES
UNTIL 900 PM CDT...
AT 500 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
OBSERVED AND ESTIMATED RAINFALL AMOUNTS OF 2 TO 4.5 INCHES HAVE
FALLEN OVER THE PAST 3 HOURS WITH 3 TO 5 INCHES OVER THE PAST 5
HOURS ACROSS MUCH OF WESTERN CALCASIEU PARISH. ADDITIONAL RAINFALL
AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE THROUGH 7 PM.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
DE QUINCY...STARKS...VINTON...BUHLER...CARLYSS...EDGERLY AND LUNITA.
SEVERAL REPORTS OF ROADS FLOODED HAVE BEEN RECEIVED FROM THE VINTON
AREA AND ON HIGHWAY 389 IN HARGROVES JUST OUTSIDE OF DEQUINCY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3006 9376 3024 9373 3025 9371 3029 9371
3030 9372 3043 9371 3044 9370 3047 9371
3051 9333 3006 9337
$$The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 11:12 AM CDT | Areal Flood Advisory | LCH | Hardin, Jasper, Tyler | 3 hr |
| Mar 20, 11:32 AM CDT | Flash Flood Warning | LCH | Hardin, Jefferson | 3 hr |
| Mar 20, 11:58 AM CDT | Areal Flood Advisory | LCH | Jefferson | 2 hr |
| Mar 20, 12:40 PM CDT | Areal Flood Advisory | LCH | Jasper | 3 hr |
| Mar 20, 12:56 PM CDT | Flash Flood Warning | LCH | Jefferson | 3 hr |
| Mar 20, 1:23 PM CDT | Flash Flood Warning | LCH | Jasper | 7 hr |
| Mar 20, 1:32 PM CDT | Areal Flood Advisory | LCH | Jasper, Newton | 3 hr |
| Mar 20, 2:07 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 3 hr |
| Mar 20, 2:27 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 5 hr |
| Mar 20, 2:30 PM CDT | Flash Flood Warning | LCH | Orange | 7 hr |
| Mar 20, 6:53 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 2 hr |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Allen | 7 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Allen, Jefferson Davis | 9 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Calcasieu | 7 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Beauregard | 5 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Allen | 6 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Acadia, Allen, Evangeline, Jefferson Davis | 6 days |
| Mar 20, 9:33 AM CDT | River Flood Warning | LCH | Acadia, Jefferson Davis | 4 days |
| Mar 20, 2:43 PM CDT | Flash Flood Warning | LCH | Beauregard, Vernon | 5 hr |
| Mar 20, 2:46 PM CDT | Tornado Warning | LCH | Calcasieu | 29 min |
| Mar 20, 6:05 PM CDT | Flash Flood Warning | LCH | Vernon | 3 hr |
Nearby
Flash Flood Warnings in Louisiana, 2012Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012
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.