Alert archive / Louisiana / Flash Flood Warnings in 1997

Flash Flood Warning 3, NWS Lake Charles, LA

April 27, 1997Iberia Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Apr 27, 1997, 9:33 AM CDT for Iberia Parish, Louisiana. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 27, 1997, 9:33 AM CDT (14:33 UTC)
Expired
Apr 27, 1997, 11:30 AM CDT
In force
117 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Iberia Parish, LA

The radar

The Lake Charles radar (KLCH), 149 km from the middle of the area, began a volume at 14:34 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, 2.6 hours before the alert went out and 147 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 1997-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1997-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939587897Sfc1 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
24 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 271434
FFWLCH
LAC045-271630-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
933 AM CDT SUN APR 27 1997
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1130 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL LOUISIANA
 
   ...IBERIA PARISH
 
AT 933 AM...ESTIMATED RAINFALL RATES FROM NATIONAL WEATHER SERVICE
DOPPLER RADAR INDICATED 2 TO 4 INCHES OF RAIN IN IBERIA PARISH DURING
THE MORNING HOURS. AN ADDITIONAL 1 TO 2 INCHES OF RAINFALL IN THE
NEXT HOUR IS POSSIBLE CREATING A POTENTIALLY LIFE THREATENING
SITUATION.  MAJOR STREET FLOODING IS ALREADY BEING REPORTED IN THE
CITY OF NEW IBERIA WITH WATER BEGINNING TO ENTER SOME HOMES.
 
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.
 .

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 10:07 PM CDTSevere Thunderstorm WarningLCHVermilion53 min
Apr 26, 10:26 PM CDTSevere Thunderstorm WarningLCHSaint Martin49 min
Apr 26, 11:36 PM CDTSevere Thunderstorm WarningLCHLafayette54 min
Apr 27, 5:07 AM CDTSevere Thunderstorm WarningLCHAcadia38 min
Apr 27, 7:07 AM CDTSevere Thunderstorm WarningLCHIberia23 min
Apr 27, 11:50 AM CDTFlash Flood WarningLCHIberia6 hr

Nearby

Flash Flood Warnings in Louisiana, 1997Every flash flood warning in 1997

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.