Alert archive / Louisiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 41, NWS Lake Charles, LA

April 20, 1992Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 20, 1992, 4:06 AM CDT for Cameron Parish, Louisiana. It was in force for 54 min.

The area

The counties it named.

The facts

Issued: Apr 20, 1992, 4:06 AM CDT (09:06 UTC)
Expired: Apr 20, 1992, 5:00 AM CDT
In force: 54 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Cameron Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.1 hours before the alert went out and 30 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: 1436 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 664 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 200909
SVRLCH
LAC023-201000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
406 AM CDT MON APR 20 1992
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS
 
IN SOUTHWEST LOUISIANA
 
   ...EASTERN CAMERON PARISH
 
 
AT 400 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED JUST SOUTHEAST OF
CAMERON MOVING NORTHEAST AT 35 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  *HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Apr 20, 2:47 AM CDT, 1 hour 19 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
245 AM CDT MON APR 20 1992

TIME                    REPORT

338 AM      3/4 INCH HAIL REPORTED NEAR THE CITY LIMITS SOUTH OF
            ALEXANDRIA BY THE RAPIDES PARISH SHERIFF DEPARTMENT.

Local storm report, Apr 20, 2:48 AM CDT, 1 hour 18 minutes before

STORM REPORT...CORRECT TIME...
NATIONAL WEATHER SERVICE LAKE CHARLES LA
245 AM CDT MON APR 20 1992

TIME                    REPORT

238 AM      3/4 INCH HAIL REPORTED NEAR THE CITY LIMITS SOUTH OF
            ALEXANDRIA BY THE RAPIDES PARISH SHERIFF DEPARTMENT.

Local storm report, Apr 20, 3:33 AM CDT, 33 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
332 AM CDT MON APR 20 1992

TIME                    REPORT

325 AM      PUBLIC REPORTED 2 INCH HAIL JUST SOUTHEAST OF LAFAYETTE
            IN LAFAYETTE PARISH WITH 1/2 INCH HAIL REPORTED IN THE
            CENTER OF TOWN.

Local storm report, Apr 20, 3:42 AM CDT, 24 minutes before

STORM REPORT..ADD DAMAGE...
NATIONAL WEATHER SERVICE LAKE CHARLES LA
341 AM CDT MON APR 20 1992

TIME                    REPORT

325 AM      PUBLIC REPORTED 2 INCH HAIL JUST SOUTHEAST OF LAFAYETTE
            IN LAFAYETTE PARISH WITH 1/2 INCH HAIL REPORTED IN THE
            CENTER OF TOWN.  SEVERAL WINDSHIELDS DAMAGED DUE TO HAIL
            WITH AT LEAST ONE POWER LINE POLE REPORTED DOWN.

Special weather statement, Apr 20, 4:02 AM CDT, 4 minutes before

TXZ033-046-048-201100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
402 AM CDT MON APR 20 1992

...THE TORNADO AND FLOOD/FLASH FLOOD WATCHES FOR EAST AND SOUTHEAST
HAVE BEEN CANCELLED...

AT 400 AM WEATHER SERVICE RADAR SHOWED MOST OF THE THUNDERSTORMS THAT
MOVED THROUGH EAST TEXAS HAVED MOVED INTO LOUISIANA AND EXTEND FROM
QUINCY TO NEAR LAKE CHARLES TO 50 MILES SOUTH OF SABINE PASS.  OVER
EAST TEXAS...SHOWERS HAVE DEVELOPED FROM JUST SOUTH OF CROCKETT TO
LAKE LIVINGSTON TO NEAR CONROE.  THE SHOWERS AND THUNDERSTORMS WERE
MOVING EAST AT 25 MILES AN HOUR.

WITH THE STRONGEST THUNDERSTORMS OVER LOUISIANA THE THREAT OF
TORNADOES AND FLOODING HAS DIMINISHED...HOWEVER LIGHT RAINFALL AMOUNTS
ARE POSSIBLE THROUGH THE MORNING HOURS ACROSS EAST TEXAS.

EARLIER SUNDAY EVENING...SOME SEVERE WEATHER WAS OBSERVED ACROSS EAST
TEXAS.  THE JASPER SHERIFF OFFICE REPORTED HAIL AN INCH AND A HALF IN
DIAMETER ACROSS NORTHERN JASPER COUNTY NEAR EBENEZER AT 520 PM.  DIME
SIZE HAIL WAS REPORTED IN YELLOWPINE IN SABINE COUNTY AT 639 PM.

NNNN

Local storm report, Apr 20, 4:04 AM CDT, 2 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
400 AM CDT MON APR 20 1992

TIME                    REPORT

355 AM      LAFAYETTE EOC REPORTING A 1 1/2 MILE STRETCH OF HIGHWAY
            LA 339 SE OF THE CITY OF LAFAYETTE IN LAFAYETTE PARISH CLOSED
            DUE TO NUMEROUS POWER LINE POLES BLOWN DOWN FROM STRONG WINDS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:07 PM CDT	Severe Thunderstorm Warning	LCH	Grant	53 min
Apr 19, 10:57 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	63 min
Apr 19, 11:27 PM CDT	Severe Thunderstorm Warning	LCH	Grant, Rapides	33 min
Apr 20, 12:01 AM CDT	Severe Thunderstorm Warning	LCH	Vernon	59 min
Apr 20, 12:47 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard	58 min
Apr 20, 1:19 AM CDT	Severe Thunderstorm Warning	LCH	Vernon	26 min
Apr 20, 1:50 AM CDT	Severe Thunderstorm Warning	LCH	Cameron	55 min
Apr 20, 1:50 AM CDT	Severe Thunderstorm Warning	LCH	Rapides	55 min
Apr 20, 2:48 AM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Jefferson Davis, Vermilion	57 min
Apr 20, 2:48 AM CDT	Severe Thunderstorm Warning	LCH	Lafayette	57 min
Apr 20, 2:48 AM CDT	Severe Thunderstorm Warning	LCH	Grant, Rapides	57 min
Apr 20, 4:57 AM CDT	Severe Thunderstorm Warning	LCH	Cameron, Vermilion	63 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1992 Every severe thunderstorm warning in 1992

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.