Alert archive / Louisiana / Flash Flood Warnings in 2002

Flash Flood Warning 4, NWS Lake Charles, LA

August 16, 2002St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Aug 16, 2002, 3:44 PM CDT for St. Mary 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 outline as issued.

The facts

Issued
Aug 16, 2002, 3:44 PM CDT (20:44 UTC)
Expired
Aug 16, 2002, 6:45 PM CDT
In force
3 hr
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text

County St. Mary Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.7 hours before the alert went out and 164 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, Slidell Radar S, LA at 12:00Z on 2002-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2600 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, Slidell Radar S, LA at 12:00Z on 2002-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 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
2600 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
42 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 
WGUS54 KLCH 162044
FFWLCH
LAC101-162345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
345 PM CDT FRI AUG 16 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ST. MARY PARISH IN SOUTH CENTRAL LOUISIANA

* UNTIL 645 PM CDT

* AT 345 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED   
THAT 2 TO 4 INCHES OF RAIN HAS FALLEN ACROSS EXTREME SOUTHEAST SAINT 
MARY PARISH DURING THE PAST 3 HOURS. WATER IN A FEW CARS AND 
RESIDENCES HAVE BEEN REPORTED IN BERWICK. EXPECT AN ADDITIONAL 1 TO 
2 INCHES OF RAINFALL IN THE WARNED AREA THROUGH 645 PM.

CALL 337-477-5285 TO REPORT FLOODING TO THE WEATHER SERVICE.

LAT...LON 2965 9110 2953 9132 2958 9150 2976 9135
          2971 9112
1 follow-up statement
000 
WGUS74 KLCH 162224
FFSLCH
LAC101-162300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
524 PM CDT FRI AUG 16 2002

...FLASH FLOOD WARNING FOR SAINT MARY PARISH HAS BEEN CANCELLED...

SHOWERS AND THUNDERSTORMS THAT BROUGHT UP TO TWO INCHES OF RAIN
ACROSS BERWICK AND BAYOU VISTA IN SAINT MARY PARISH HAVE NOW MOVED
SOUTHEAST INTO THE NEARSHORE COASTAL WATERS.

HEAVY RAINFALL IS NO LONGER A THREAT AT THIS TIME AND THE FLASH FLOOD
WARNING WILL BE CANCELLED.

$$

Nearby

Flash Flood Warnings in Louisiana, 2002Every flash flood warning in 2002

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.