Alert archive / Louisiana / Flash Flood Warnings in 1996

Flash Flood Warning 12, NWS Lake Charles, LA

September 27, 1996Lafayette Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Sep 27, 1996, 2:27 PM CDT for Lafayette Parish, Louisiana. It was in force for 7 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
Sep 27, 1996, 2:27 PM CDT (19:27 UTC)
Expired
Sep 27, 1996, 9:00 PM CDT
In force
7 hr
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Lafayette Parish, LA

The radar

The Lake Charles radar (KLCH), 111 km from the middle of the area, began a volume at 19:31 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 12:00Z, 7.5 hours before the alert went out and 110 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 1996-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1499 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 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 1996-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.193958Sfc1 km3 km6 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
1499 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
581 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLCH 271930
FFWLCH
LAC055-270200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
227 PM CDT FRI SEP 27 1996
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST LOUISIANA
 
   ...LAFAYETTE PARISH
 
AT 230 PM...THE VERMILION RIVER AT SURREY STREET BRIDGE WAS AT 9.6 FEET.
FLOOD STAGE IS 10 FEET. THE RIVER WILL GO ABOVE FLOOD STAGE THIS
AFTERNOON AND SLOWLY COME BACK DOWN TONIGHT. FLOODING OF LOW-LYING AREAS
AND SOME HOMES ALONG THE RIVER IS EXPECTED LATER THIS AFTERNOON AND
EVENING.
 
 
A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT.  MOST
FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO CROSS BRIDGES...
DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.  NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.  TO ESCAPE RISING WATER
MOVE UP TO HIGHER GROUND.
 
 
 
&

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Sep 27, 9:38 AM CDT, 4 hours 49 minutes earlier.

Area forecast discussion, Sep 27, 9:38 AM CDT, 4 hours 49 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
939 AM CDT FRI SEP 27 1996

HEAVY RAIN WILL CONTINUE THRU THIS AFTN AS FWD PROGRESS OF FNT
SLOWS. CLASSIC WEDGE ON STLT W/ CONT REDEVELOPMENT TO THE WEST.
FFA OVER ENTIRE CWA LOOKS GOOD TODAY. ONLY REAL CHG NEEDED TO FCST
IS HI TEMPS...WHICH WILL BE TUFF TO REACH IN CLDS AND RAIN...MAINLY
SW LA.8

In the hours before

Special weather statement, Sep 27, 8:41 AM CDT, 5 hours 46 minutes before
LAZ041-271545-

URBAN AND SMALL STREAM ADVISORY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
840 AM CDT FRI SEP 27 1996

...HEAVY RAINFALL IN THE LAKE CHARLES METROPOLITAN AREA...
DOPPLER RADAR INDICATED WIDESPREAD SHOWERS AND THUNDERSTORMS MOVING AT
25 MPH ACROSS CALCASIEU PARISH. RAINFALL RATES WILL ACCUMULATE UP TO
3 INCHES OVER THE NEXT TWO HOURS IN LAKE CHARLES. LOCALIZE FLOODING
OF STREETS AND LOW LYING AREAS CAN BE EXPECTED.

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS
SOUTHWEST LOUISIANA THROUGHOUT THE REMAINDER OF THE MORNING PRODUCING
MORE HEAVY RAINFALL.

RESIDENTS OF LAKE CHARLES AND SURROUNDING AREAS SHOULD USE EXTRA
CAUTION AND DONT DRIVE INTO DEEP WATER. IT ONLY TAKES SIX INCHES OF
WATER TO FLOAT MOST CARS THAT ARE NOT MOVING.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.

&
Local storm report, Sep 27, 11:34 AM CDT, 2 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1131 AM CDT FRI SEP 27 1996

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1220 AM    WOODVILLE                 TX  WIND DAMAGE
09/27/96   TYLER                         NUMEROUS TREES BLOWN
                                         DOWN ACROSS THE COUNTY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 7:12 AM CDTSevere Thunderstorm WarningLCHBeauregard, Calcasieu63 min
Sep 27, 1:04 PM CDTSevere Thunderstorm WarningLCHSt. Mary56 min

Nearby

Flash Flood Warnings in Louisiana, 1996Every flash flood warning in 1996

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.