Alert archive / Louisiana / Flash Flood Warnings in 1996

Flash Flood Warning 20, NWS Lake Charles, LA

October 25, 1996Acadia Parish, Jefferson Davis Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Oct 25, 1996, 9:33 PM CDT for Acadia Parish, Jefferson Davis Parish, Louisiana. It was in force for 3 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, 9:33 PM CDT (02:33 UTC)
Expired: Oct 26, 1996, 12:30 AM CDT
In force: 3 hr
Issued by: NWS Lake Charles, LA
Area: Whole counties

Counties Acadia Parish, LA, Jefferson Davis Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.6 hours before the alert went out and 59 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 589 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: 367 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 260237
FFWLCH
LAC001-053-260530-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
933 PM CDT FRI OCT 25 1996
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...ACADIA PARISH...JEFFERSON DAVIS PARISH
 
AT 930 PM CDT..NEXRAD DOPPLER RADAR INDICATED THAT 2 TO 3 INCHES
OF RAIN HAVE FALLEN DURING THE PAST THREE HOURS OVER JEFFERSON DAVIS
AND ACADIA PARISHES. A LINE OF THUNDERSTORMS CONTAINING VERY HEAVY
RAIN WILL MOVE SLOWLY TO THE EAST ACROSS ACADIA PARISH DURING THE NEXT
HOUR PRODUCING 2 TO 3 ADDITIONAL INCHES OF RAINFALL. MODERATE RAIN WILL
CONTINUE OVER JEFFERSON DAVIS PARISH WHERE FLOODING HAS BEEN REPORTED
IN THE JENNINGS AREA.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. DO NOT DRIVE YOUR VEHICLE
INTO AR.EAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY
BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. 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, 3:16 PM CDT, 6 hours 17 minutes earlier.

Area forecast discussion, Oct 25, 3:16 PM CDT, 6 hours 17 minutes before

SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
316 PM CST FRI OCT 25 1996

ETA SHOWS RIGHT REAR QUAD OF JETSTREAK OVR REGION WITH STG S/WV MOVG
THRU THIS EVENING. VAD WINDS SHOW SOME SHEARING SO SVR A PSBLTY
TNITE. MAIN WX PROBLEM WILL BE COPIOUS MSTR AND HVY RAINS. X-SECS
HAVE STG UVV THRU DAYBREAK SAT. VIS STLT SHOWS GOOD CONVECTION OFF
TX GULF COAST. AM CONCERNED WITH E CEN LA AS THETA AXIS OVERLAYS THAT
AREA TNITE. TEMPS SHUD BE STEADY TNITE...PSBLY SLOLY RISING WITH WAA.
WENT FOR HIR POPS ON SAT NITE DESPITE NVA DUE TO MDT TO STG
INSTABILITY AND GOOD THETA AXIS. RDGG BUILDS OVR SE U.S. SO MAIN
MSTR AREA WL GRADUALLY SHIFT W.
11

BPT 72/81/73/82 7453
LCH 70/82/72/82 7463  LFT 67/84/73/82 8553  AEX 67/82/71/84 8554

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 7:20 PM CDT	Flash Flood Warning	LCH	Calcasieu	3 hr
Oct 25, 10:15 PM CDT	Flash Flood Warning	LCH	Lafayette	60 min
Oct 25, 10:15 PM CDT	Severe Thunderstorm Warning	LCH	Lafayette	60 min
Oct 25, 10:29 PM CDT	Severe Thunderstorm Warning	LCH	Saint Martin	46 min
Oct 25, 11:15 PM CDT	Flash Flood Warning	LCH	Saint Landry, Saint Martin	3 hr

Nearby

Flash Flood Warnings in Louisiana, 1996 Every 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.