Alert archive / Louisiana / Flash Flood Warnings in 1996

Flash Flood Warning 16, NWS Lake Charles, LA

October 25, 1996Saint Landry Parish, Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Oct 25, 1996, 7:16 AM CDT for Saint Landry Parish, Saint Martin Parish, Louisiana. It was in force for 4 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
Oct 25, 1996, 7:16 AM CDT (12:16 UTC)
Expired
Oct 25, 1996, 11:15 AM CDT
In force
4 hr
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Saint Landry Parish, LA, Saint Martin Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.3 hours before the alert went out and 137 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 1996-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 1996-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 251220
FFWLCH
LAC097-099-251615-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
716 AM CDT FRI OCT 25 1996
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL LOUISIANA
 
   ...ST. LANDRY PARISH...UPPER ST. MARTIN PARISH
 
AT 700 AM CDT...NEXRAD DOPPLER RADAR INDICATED THAT SOUTHERN
ST LANDRY PARISH AND NORTHERN UPPER ST MARTIN PARISHES HAVE RECEIVED
3 TO 4 INCHES OF RAIN SINCE MIDNIGHT AND AN ADDITIONAL 2 INCHES OF
RAIN IS LIKELY DURING THE NEXT 4 HOURS.
 
FLOODING ON AREA ROADWAYS HAS BEEN REPORTED DURING THE LAST HOUR
IN ST LANDRY AND ST MARTIN PARISHES. THE SHERIFF'S OFFICE REPORTS
THAT HIGHWAY 190 WESTBOUND NEAR LATEL AND HIGHWAY 103 NEAR WASHINGTON
AND GRAND PRARIE IN ST LANDRY PARISH ARE UNDER WATER. IN UPPER ST
MARTIN PARISH...HIGHWAY 347 IS FLOODED.
 
ADDITONAL FLOODING CAN BE EXPECTED THIS MORNING AS THUNDERSTORMS
CONTINUE TO MOVE NORTHEAST ACROSS SOUTHCENTRAL LOUISIANA.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFE.LY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE 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 Oct 25, 1:24 AM CDT, 5 hours 52 minutes earlier.

Area forecast discussion, Oct 25, 1:24 AM CDT, 5 hours 52 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
145 AM CST FRI OCT 25 1996

MODELS IN REASONABLE AGREEMENT. NGM A LITTLE FASTER THAN ETA WITH
SHRT WV IN SUBTROPICAL FLOW WHICH WILL APPROACH FA LATE THIS
AFTERNOON. IT IS THERFORE LOWER IN POPS FOR SECOND PERIOD. MOISTURE
AXIS WILL SHIFT EAST WITH TIME SO WILL INCLUDE SCATTERED POPS
FOR SATURDAY AHEAD OF IMPRESSIVE TROF IN WEST. MODELS SHOW LITTLE
MOVEMENT WITH WESTERN US TROF DURING PD JUST CONTINUED AMPLIFICATION.
POTENTIAL FOR HEAVY RAIN WILL CONTINUE TODAY. KHGX LOOP SHOWING
CONTINUED DEVELOPMENT OFF OF SE TX COAST IN GULF. THIS AREA WILL WORK
NORTHEAST LATER THIS AM. SVR TSTMS POSSIBLE THIS AFTERNOON AS UPPER
LEVEL DIVERGENCE PROGGED TO CONTINUE AND ATMOSPHERE WILL BECOME MORE
UNSTABLE AS WARM FRONT MOVES ACROSS FA.

01

BPT 78/68/82 843
LCH 76/68/82 853  LFT 76/68/82 853  AEX 76/66/81 853

In the hours before

Special weather statement, Oct 25, 5:46 AM CDT, 1 hour 30 minutes before
LAZ053-044-033-045-251345-

URBAN AND SMALL STREAM ADVISORY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
542 AM CDT FRI OCT 25 1996

AT 535 AM CDT...NEXRAD DOPPLER RADAR INDICATED THAT PORTIONS
OF SOUTH-CENTRAL LOUISIANA HAVE RECEIVED 2 INCHES OF RAIN
DURING THE PAST 3 HOURS. AN ADDITIONAL INCH OF RAIN IS EXPECTED
DURING THE NEXT TWO HOURS...THEREFORE PONDING OF WATER IS LIKELY
ON AREA ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION WHILE MAKING
THEIR MORNING COMMUTE.

A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHCENTRAL LOUISIANA
TODAY AS HEAVY RAINFALL IS EXPECTED TO CONTINUE THROUGHOUT
THE DAY. STAY TUNED TO LOCAL TV...RADIO...OR NOAA WEATHER RADIO
FOR THE LATEST STATEMENTS AND POSSIBLE FLOOD RELATED WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 9:51 PM CDTFlash Flood WarningLCHCalcasieu4 hr
Oct 24, 11:21 PM CDTFlash Flood WarningLCHJefferson Davis2 hr
Oct 25, 5:32 PM CDTFlash Flood WarningLCHCalcasieu118 min
Oct 25, 6:30 PM CDTFlash Flood WarningLCHAllen2 hr

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.