Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 10, NWS Lake Charles, LA

March 29, 1990Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 29, 1990, 6:03 PM CST for Cameron Parish, Louisiana. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Mar 29, 1990, 6:03 PM CST (00:03 UTC)
Expired
Mar 29, 1990, 7:00 PM CST
In force
57 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Cameron 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 00:00Z, 0.1 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 1990-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 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 00:00Z on 1990-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.19395878Sfc1 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
50 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 300009
SVRLCH
LAC023-300100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
603 PM CST THU MAR 29 1990
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...CAMERON PARISH
 
SABINE PASS EAST TO VERMILION BAY
 
AT 6 PM RADAR INDICATED A BAND OF SEVERE THUNDERSTORMS MOVING INTO
WESTERN PORTION OF CAMERON PARISH. THE THUNDERSTORMS WERE MOVING EAST
AT 30 MPH.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADL4Y LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, Mar 29, 12:48 PM CST, 5 hours 15 minutes before
LAZ007-008-011-012-291940-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1240 PM CST THU MAR 28 1990

AT 1230 PM...LARGE AND STRONG THUNDERSTORMS WERE SHOWN IN EAST TEXAS
FROM JASPER TO JUST EAST OF LAKE LIVINGSTON MOVING NORTHEAST AT 25 MPH.

A BAND OF SCATTERED THUNDERSTORMS AND NUMEROUS SHOWERS WAS LOCATED FROM
NORTH OF WINNFIELD TO NATCHITOCHES ACROSS TOLEDO BEND RESERVOIR AND
RAYBURN LAKE TO LAKE LIVINGSTON.

CLUSTERS OF THUNDERSTORMS AND SHOWERS COVERED VERNON AND BEAUREGARD
PARISHES OF WEST LOUISIANA...SOUTH OF BATON ROUGE TO SOUTH OF ALEXANDRIA
...NORTH AND WEST OF LUFKIN TO HUNTSVILLE TO 25 MILES NORTH OF HOUSTON...
WHILE A LARGE AREA OF MOSTLY RAIN WAS SHOWN FROM BEAUMONT ACROSS LAKE
CHARLES SOUTH TO OFFSHORE SOUTH OF CAMERON.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MPH.
Special weather statement, Mar 29, 1:51 PM CST, 4 hours 12 minutes before
LAZ007-008-011-012-292040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
145 PM CST THU MAR 28 1990

AT 130 PM...LARGE AND STRONG THUNDERSTORMS HAD MOVED OUT OF BEAUREGARD
PARISH INTO VERNON PARISH. THESE THUNDERSTORMS WITH HEAVY RAIN WILL
CONTINUE TO TEMPORARILY FLOOD STREETS AND LOW LYING HIGHWAYS FROM
LEESVILLE ACROSS FORT POLK. THE THUNDERSTORMS WERE MOVING NORTHEAST AT
25 MPH.

A WIDESPREAD BAND OF SCATTERED THUNDERSTORMS AND RAIN...40 TO 50 MILES
WIDE...WAS SHOWN IN WEST LOUISIANA AND EAST TEXAS FROM JUST EAST AND
WEST OF ALEXANDRIA ACROSS TOLEDO BEND RESERVOIR AND RAYBURN LAKE TO
LUFKIN THEN SOUTHWEST ACROSS LAKE LIVINGSTON TO WELL SOUTHWEST OF
HUNTSVILLE.

A LARGE RAIN AREA WITH A FEW THUNDERSTORMS WAS SHOWN FROM HOUSTON TO
FREEPORT AND FROM LAFAYETTE ACROSS VERMILION BAY INTO THE GULF ABOUT
30 MILES MOVING NORTHEAST AT 25 MPH.
Special weather statement, Mar 29, 2:53 PM CST, 3 hours 10 minutes before
LAZ007-008-011-012-292140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
245 PM CST THU MAR 28 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM FOR PORTIONS OF
SOUTHEAST TEXAS...WEST LOUISIANA...AND ADJACENT COASTAL WATERS...

AT 235 PM...A WIDESPREAD BAND OF SCATTERED THUNDERSTORMS AND RAIN WAS
SHOWN IN CENTRAL AND WEST LOUISIANA INTO EAST TEXAS FROM ALEXANDRIA
TO TOLEDO BEND RESERVOIR SOUTH TO DERIDDER THEN WEST ACROSS RAYBURN
LAKE...LUFKIN...SOUTHWEST TO COLLEGE STATION.

A WIDESPREAD AREA OF RAIN WITH APPARENT STRONG THUNDERSTORMS MIXED IN
THE RAIN WAS LOCATED FROM HOUSTON ACROSS GALVESTON AND FREEPORT SOUTH
INTO THE GULF 75 MILES...ANDJ WEST OF HOUSTON AND GALVESTON ABOUT 75 MILES.

THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH.

A FEW SHOWERS WERE SHOWN FROM MORGAN CITY TO LAFAYETTE.
Special weather statement, Mar 29, 3:47 PM CST, 2 hours 16 minutes before
LAZ007-008-011-012-292240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
345 PM CST THU MAR 28 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM FOR MOST OF
CENTRAL AND SOUTHWEST LOUISIANA...AND ADJACENT COASTAL WATERS...

AT 330 PM...CLUSTERS OF STRONG THUNDERSTORMS WERE NOW INDICATED FROM
HOUSTON...GALVESTON...FREEPORT...INTO THE GULF 25 MILES SOUTHEAST THROUGH
SOUTHWEST OF FREEPORT MOVING NORTHEAST AT 30 MPH.

WIDESPREAD RAIN WITH SCATTERED THUNDERSTORMS MIXED IN THE RAIN WAS ALSO
SHOWN FROM NORTH OF ALEXANDRIA TO WINNFIELD...THEN AGAIN OVER VERNON
PARISH AROUND LEESVILLE AND FORT POLK...TO NEAR AND WELL NORTHEAST THROUGH
SOUTHWEST OF LUFKIN.

THESE THUNDERSTORMS WERE MOVING NORTH AT 30 MPH.
Special weather statement, Mar 29, 4:44 PM CST, 1 hour 19 minutes before
LAZ007-008-011-012-292345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
440 PM CST THU MAR 28 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM FOR MOST OF
SOUTHWEST AND CENTRAL LOUISIANA...AND A FLASH FLOOD WATCH IS IN EFFECT
TONIGHT...

AT 430 PM A ISOLATED THUNDERSTORMS WAS OCCURRING A LITTLE NORTHEAST OF
ALEXANDRIA AND ISOLATED SHOWERS WERE OCCURRING AROUND DERIDDER TO A
LITTLE SOUTH OF OAKDALE.

HOWEVER A LARGE MASS OF RAIN AND THUNDERSTORMS WERE MOVING THROUGH
SOUTHEAST TEXAS APPROCHING WESTERN LOUISIANA. THUNDERSTORMS WITH VERY
HEAVY RAIN WERE MOVING ALONG THE UPPER TEXAS COAST FROM NEAR HIGH ISLAND
ACROSS GALVESTON BAY TO A LITTLE SOUTH OF FREEPORT. THESE THUNDERSTORMS
WERE PART OF A LARGE MASS OF RAIN AND THUNDERSTORMS THAT WERE OCCURRING
OVER MOST OF EAST TEXAS.

THIS LARGE MASS OF RAIN AND THUNDERSTORMS WAS SPREADING EAST AT ABOUT
20 MPH.

PERSONS IN SOUTHWEST AND CENTRAL LOUISIANA SHOULD REMAIN ALERT AND
LISTEN FOR LATER STATEMENT OR WARNING DURING THE EVEN HOURS.
Special weather statement, Mar 29, 5:21 PM CST, 42 minutes before
TXC245-300230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
521 PM CST THU MAR 29 1990

...SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 900 PM CST...

...FLASH FLOOD WATCH  UNTIL 900 PM CST...

AT 500 PM...A LINE OF STRONG THUNDERSTORMS FROM NEAR LUMBERTON
THROUGH BEAUMONT AND NEDERLAND SOUTHWEST TO EAST OF HIGH ISLAND WAS
MOVING EAST AT 30 MPH.

STRONG GUSTY WINDS AND HEAVY RAINS CAN BE EXPECTED WITH THIS LINE OF
STRONG THUNDERSTORMS.

MOTORISTS SHOULD BE ESPECIALLY CAREFUL DUE TO THE WET ROADS AND VERY
LOW VISIBILITY IN THE HEAVY RAINS.

FLOODING OF LOW AREAS IS POSSIBLE AS 1 TO 3 INCHES OF RAIN IS POSSIBLE
FROM THESE STRONG THUNDERSTORMS AS THEY MOVE ACROSS JEFFERSON AND
ORANGE COUNTIES.

A SPECIAL MARINE WARNING CONTINUES FOR THE COASTAL WATER BETWEEN HIGH
ISLAND AND SABINE PASS UNTIL 700 PM CST.  BOATERS AND MARINE INTERESTS
SHOULD BE VERY CAUTIOUS AS THE STRONG THUNDERSTORMS CONTINUE IN THE
COASTAL WATERS AS FAR WEST AS 25 TO 50 MILES SOUTH OF FREEPORT.

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 6:56 PM CSTSevere Thunderstorm WarningLCHCalcasieu, Cameron, Jefferson Davis64 min
Mar 29, 6:56 PM CSTSevere Thunderstorm WarningLCHVermilion64 min
Mar 29, 7:28 PM CSTTornado WarningLCHCalcasieu32 min
Mar 29, 7:32 PM CSTSevere Thunderstorm WarningLCHAcadia, Lafayette, Vermilion58 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.