Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 82, NWS Lake Charles, LA

July 23, 1990Beauregard Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 23, 1990, 1:44 PM CDT for Beauregard Parish, Louisiana. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1990, 1:44 PM CDT (18:44 UTC)
Expired
Jul 23, 1990, 2:45 PM CDT
In force
61 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Beauregard Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.7 hours before the alert went out and 60 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 1990-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2755 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 1990-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
2755 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
69 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 231846
SVRLCH
LAC011-231945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
144 PM CDT MON JUL 23 1990
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...BEAUREGARD PARISH
 
AT 135 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF
DE QUINCY. THE THUNDERSTORM WAS MOVING NORTHEAST AT 20 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

Special weather statement, Jul 23, 9:48 AM CDT, 3 hours 56 minutes before
LAZ005-006-007-008-011-012-231540-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
945 AM CDT MON JUL 23 1990

AT 925 AM...ISOLATED THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED
NEAR VINTON..NEAR ORANGE..AND 25 MILES WEST OF BEAUMONT.

THESE THUNDERSTORMS MAY PRODUCE BRIEF PERIODS OF HEAVY RAIN AND LOCAL
STREET FLOODING OVER PORTIONS OF CALCASIEU PARISH DURING THE NEXT HOUR
AS THEY MOVE NORTHEAST.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER THE AREA
FROM 10 MILES EAST OF DE RIDDER TO WHITE LAKE TO 50 MILES SOUTH OF SABINE
PASS TO FREEPORT TEXAS AND TO NORTHWEST OF CONROE.  MOVEMENT WAS NORTHEAST
AT 20 MPH.

THUNDERSTORMS HAD DEVELOPED INTO A NARROW LINE FROM NORTHERN TOLEDO BEND
RESERVOIR TO LAKE LIVINGSTON TO NORTHWEST OF CONROE.  THE THUNDERSTORMS
WERE MOVING NORTHEAST AT 20 MPH.
Special weather statement, Jul 23, 10:39 AM CDT, 3 hours 5 minutes before
LAZ005-006-007-008-011-012-231640-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1040 AM CDT MON JUL 23 1990

AT 1025 AM...ISOLATED THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED
NEAR KINDER...NEAR VINTON..AND WEST OF BEAUMONT.

THESE THUNDERSTORMS MAY PRODUCE BRIEF PERIODS OF HEAVY RAIN AND LOCAL
STREET FLOODING OVER PORTIONS OF CALCASIEU AND JEFF DAVIS PARISHES
DURING THE NEXT HOUR AS THEY MOVE NORTHEAST.

SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER THE AREA FROM
NEAR MANY TO SOUTHEAST OF ALEXANDRIA TO 35 MILES EAST OF LAFAYETTE TO 30
MILES SOUTH OF WHITE LAKE THEN TO WEST OF FREEPORT TEXAS AND WEST OF
CONROE.

MOVEMENT WAS NORTHEAST AT 20 MPH.
Special weather statement, Jul 23, 11:41 AM CDT, 2 hours 3 minutes before
LAZ005-006-007-008-011-012-231740-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1140 AM CDT MON JUL 23 1990

AT 1125 AM...A CLUSTER OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN
AND GUSTY WINDS WAS SHOWN FROM NEAR BEAUMONT AND ORANGE TO JUST WEST
OF LAKE CHARLES.

THESE STRONG STORMS WERE IN A BAND FROM JUST SOUTH OF ALEXANDRIA ACROSS
OAKDALE AND DEQUINCY TO GALVESTON.

A SECOND BAND OF SCATTERED  THUNDERSTORMS WAS LOCATED FROM JUST SOUTH
OF NATCHITOCHES LOUISIANA ACROSS THE TOLEDO BEND RESERVOIR TO NEAR
AND WELL NORTHEAST OF HOUSTON.

A CLUSTER OF THUNDERSTORMS AND SHOWERS WAS ALSO SHOWN FROM NEAR LAFAYETTE
AND JENNINGS SOUTH ACROSS WHITE LAKE.

&MOVEMENT WAS NORTHEAST AT 20 MPH.

THE THUNDERSTORMS MOVING INTO SOUTHWEST LOUISIANA AND LAKE CHARLES
WILL LIKELY PRODUCE STREET FLOODING AND FLOODING OF LOW LYING AREAS
AS THE STORMS CONTINUE TAO MOVE IN FROM THE SOUTHWEST.
Special weather statement, Jul 23, 12:45 PM CDT, 59 minutes before
LAZ005-006-007-008-011-012-231840-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1235 PM CDT MON JUL 23 1990

AT 1225 PM...STRONG THUNDERSTORMS CONTINUED JUST SOUTHWEST OF LAKE
CHARLES MOVING OVER SOUTHWEST LOUISIANA.

A BRIEF THUNDERSTORM AT THE AIRPORT DROPPED A QUARTER INCH RAIN IN A
FEW MINUTES WITH WIND GUSTS TO 29 MPH.

THESE THUNDERSTORMS WERE IN A BAND OVER SOUTH LOUISIANA FROM JUST NORTH
WEST OF LAFAYETTE ACROSS CROWLEY...JENNINGS...LAKE CHARLES...TO NEAR
AND EAST OF BEAUMONT.

SCATTERED THUNDERSTORMS AND SHOWERS WERE INDICATED FROM ALEXANDRIA TO
LAFAYETTE SOUTH TO THE COAST...THEN WEST FROM FORT POLK SOUTH INTO THE
COASTAL WATERS SOUTH OF CAMERON.

THE THUNDERSTORMS WERE SHOWN FROM SOUTH OF LAKE LIVINGSTON AND LUFKIN
ACROSS HOUSTON...FREEPORT...GALVESTON...AND JUST OFFSHORE SOUTHEAST
TEXAS.

MOVEMENT WAS NORTHEAST AT 25 MPH.

THE THUNDERSTORMS IN ACADIA...JEFF DAVIS...AND CALCASlIEU PARISHES...
WILL PRODUCE BRIEF GSUTY WINDS...RAINS HEAVY ENOUGH FOR TEMPORARY STREET
FLOODING...AND DANGEROUS LIGHTNING.

HEAVIER THUNDERSTORMS WILL MOVE OVER LAFAYETTE PARISH BY 130PM.
Special weather statement, Jul 23, 1:38 PM CDT, 6 minutes before
LAZ005-006-007-008-011-012-231940-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
135 PM CDT MON JUL 23 1990

AT 125 PM...STRONG THUNDERSTORMS CONTINUED TO MOVE OVER SOUTHWEST
LOUISIANA AND LAKE CHARLES FROM THE SOUTHWEST.

SCATTERED THUNDERSTORMS NOW MIXED IN WIDESPREAD RAIN COVERED MOST OF
SOUTH CENTRAL AND SOUTHWEST LOUISIANA FROM SOUTHWEST OF BATON ROUGE
TO JUST SOUTH OF BEAUMONT.

SCATTERED THUNDERSTORMS AND SHOWERS WERE ALSO SHOWN FROM JUST SOUTH
EAST AND SOUTH OF ALEXANDRIA TO MIDWAY BETWEEN LAFAYETTE AND BATON ROUGE
TO VERMILION BAY.

A NEW BAND OF SCATTERED THUNDERSTORMS AND SHOWERS COVERED CENTRAL AND WEST
LOUISIANA FROM JUST SOUTH OF ALEXANDRIA ACROSS FORT POLK TO JASPER AND
LAKE LIVINGSTON TEXAS SOUTH ACROSS HOUSTON AND GALVESTON INTO THE GULF.
STRONGEST STORM WAS JUST SOUTHEAST OF JASPER TEXAS.

THUNDERSTORMS AROUND LAKE CHARLES WILL CONTINUE TO PRODUCE BRIEF HEAVY
RAINS CAPABLE OF STREET AND LOW LYING AREA FLOODING...GUSTY WINDS...
AND DANGEROUS LIGHTNING THIS AFTERNOON.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 2:05 PM CDTSevere Thunderstorm WarningLCHVernon55 min
Jul 23, 2:31 PM CDTSevere Thunderstorm WarningLCHRapides59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1990Every severe thunderstorm warning in 1990

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.