Alert archive / Louisiana / Areal Flood Warnings in 2012

Areal Flood Warning 5, NWS Lake Charles, LA

February 3, 20125 parishes in Louisiana

NWS Lake Charles, LA issued this areal flood warning at Feb 3, 2012, 8:06 PM CST for 5 parishes in Louisiana. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 3, 2012, 8:06 PM CST (02:06 UTC)
Expired
Feb 4, 2012, 8:00 AM CST
In force
12 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, Vernon Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.1 hours before the alert went out and 109 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 00:00Z on 2012-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2041 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.193958Sfc1 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
2041 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this areal flood warning went out at Feb 3, 5:48 PM CST, 2 hours 18 minutes earlier.

Area forecast discussion, Feb 3, 5:48 PM CST, 2 hours 18 minutes before
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Hazardous weather outlook, Feb 3, 4:09 PM CST, 3 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
409 PM CST FRI FEB 3 2012

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
041200-
VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY-
CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN-
VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-WEST CAMERON-
EAST CAMERON-TYLER-HARDIN-JEFFERSON-ORANGE-NORTHERN JASPER-
NORTHERN NEWTON-SOUTHERN JASPER-SOUTHERN NEWTON-
409 PM CST FRI FEB 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST
CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT
SHOWERS AND THUNDERSTORMS WILL AGAIN DEVELOP OVER THE AREA THIS
EVENING AND TONIGHT AS AN UPPER-LEVEL DISTURBANCE COMBINES WITH
THE DEEP MOISTURE IN PLACE OVER THE WESTERN GULF STATES. A FEW
STORMS COULD BE SEVERE TONIGHT...ESPECIALLY OVER INTERIOR
SOUTHEAST TEXAS AND POSSIBLY CENTRAL LOUISIANA...AS STRONG WINDS
LINGER IN THE LOWER ATMOSPHERE WHILE ALSO TURNING SOMEWHAT WITH
HEIGHT. DAMAGING WIND GUSTS AND ISOLATED TORNADOES ARE AGAIN THE
PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
SHOWERS AND STORMS WILL BE WIDESPREAD ON SATURDAY AS A COLD FRONT
SLOWLY CROSSES THE AREA. SOME STORMS COULD BE STRONG...WITH WIND
GUSTS TO 40 MPH...ALTHOUGH SEVERE WEATHER IS NOT EXPECTED AS
EXTENSIVE CLOUD COVER SHOULD LIMIT ATMOSPHERIC INSTABILITY.
PRECIPITATION WILL LINGER THROUGH SUNDAY AS WARM MOIST FLOW OFF
THE GULF PERSISTS IN THE MIDDLE AND UPPER LEVELS OF THE
ATMOSPHERE. DRY WEATHER IS THEN FORECAST BEGINNING TUESDAY AS
DRIER AIR FINALLY FILTERS OVER SOUTHERN LOUISIANA AND SOUTHEAST
TEXAS.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION SHOULD NOT BE REQUIRED.

GMZ430-432-435-450-452-455-470-472-475-041200-
SABINE LAKE-CALCASIEU LAKE-VERMILION BAY-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
WATERS FROM  INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM
20 TO 60 NM-
409 PM CST FRI FEB 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO.

.DAY ONE...THIS AFTERNOON AND TONIGHT
PATCHY SEA FOG...SOMETIMES DENSE WITH VISIBILITIES BELOW ONE
NAUTICAL MILE...IS EXPECTED TO AGAIN DEVELOP TONIGHT OVER THE
COASTAL WATERS AND POSSIBLY SPREAD OVER THE INLAND LAKES AND BAYS.
THIS FOG WILL PERSIST INTO MORNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
A COLD FRONT WILL MOVE INTO THE NORTHWEST GULF BY MID-DAY SATURDAY
THEN SLOWLY CROSS THE COASTAL WATERS INTO SATURDAY EVENING. STRONG
NORTHERLY WINDS BEHIND THE FRONT WILL BRING AN END TO THE
PERSISTENT FOG...ALTHOUGH BOATING WILL BE HAZARDOUS TO SMALL CRAFT
WITH ROUGH SEAS ACCOMPANYING THE WINDS. ONCE THE STRONG WINDS
RELAX LATE SUNDAY...LIGHT TO MODERATE OFFSHORE FLOW WILL PERSIST
THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION SHOULD NOT BE REQUIRED.

25

In the hours before

Local storm report, Feb 3, 6:28 PM CST, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
628 PM CST FRI FEB 03 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     FLOOD            ALEXANDRIA              31.29N 92.46W
02/03/2012                   RAPIDES            LA   EMERGENCY MNGR

            41 ROADS REMAIN CLOSED ACROSS RAPIDES PARISH DUE TO
            FLOODING FROM HEAVY RAINFALL.

&&

LANDRENEAU

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 9:03 PM CSTSpecial Weather StatementLCHRapides57 min
Feb 3, 9:11 PM CSTSevere Thunderstorm WarningLCHRapides, Vernon64 min
Feb 3, 10:28 PM CSTFlash Flood WarningLCHRapides, Vernon4 hr
Feb 4, 1:20 AM CSTAreal Flood AdvisoryLCHRapides85 min
Feb 4, 2:38 AM CSTMarine Dense Fog AdvisoryLCH9 hr
Feb 4, 3:58 AM CSTFlash Flood WatchLCHAllen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more14 hr
Feb 4, 7:07 AM CSTSpecial Weather StatementLCHBeauregard, Vernon53 min
Feb 4, 7:51 AM CSTSpecial Weather StatementLCHBeauregard, Vernon54 min
Feb 4, 7:56 AM CSTSpecial Weather StatementLCHCalcasieu64 min
Feb 4, 8:20 AM CSTTornado WarningLCHAllen, Beauregard25 min
Feb 4, 8:39 AM CSTSpecial Weather StatementLCHAllen, Rapides66 min
Feb 4, 8:55 AM CSTAreal Flood WarningLCHAllen, Avoyelles, Beauregard, Evangeline, Rapides, Vernon12 hr
Feb 4, 9:36 AM CSTSpecial Weather StatementLCHAcadia, Evangeline, Jefferson Davis, Saint Landry54 min
Feb 4, 9:47 AM CSTFlash Flood WarningLCHBeauregard, Vernon3 hr
Feb 4, 9:59 AM CSTAreal Flood AdvisoryLCHCalcasieu3 hr
Feb 4, 10:25 AM CSTRiver Flood WarningLCHBeauregard3 days
Feb 4, 10:25 AM CSTRiver Flood WarningLCHAllen5 days
Feb 4, 10:27 AM CSTSpecial Weather StatementLCHAcadia, Avoyelles, Lafayette, Saint Landry63 min
Feb 4, 11:01 AM CSTSevere Thunderstorm WarningLCHAvoyelles, Saint Landry29 min
Feb 4, 11:25 AM CSTSpecial Marine WarningLCH65 min
Feb 4, 11:34 AM CSTAreal Flood WarningLCHAcadia, Allen, Avoyelles, Beauregard, Evangeline, Saint Landry10 hr
Feb 4, 4:08 PM CSTSmall Craft AdvisoryLCH37 hr
Feb 4, 5:10 AM CSTSpecial Weather StatementLCHTyler65 min
Feb 4, 6:16 AM CSTSpecial Weather StatementLCHJasper, Tyler59 min
Feb 4, 6:28 AM CSTSpecial Weather StatementLCHHardin62 min
Feb 4, 7:15 AM CSTSpecial Weather StatementLCHHardin60 min

Nearby

Areal Flood Warnings in Louisiana, 2012Every areal 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; the sounding from the Mesonet's radiosonde archive.