Alert archive / Louisiana / Tornado Warnings in 1990

Tornado Warning 11, NWS Lake Charles, LA

April 27, 1990Allen Parish, Beauregard Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 27, 1990, 9:26 PM CDT for Allen Parish, Beauregard Parish, Louisiana. It was in force for 49 min.

The area

The counties it named.

The facts

Issued: Apr 27, 1990, 9:26 PM CDT (02:26 UTC)
Expired: Apr 27, 1990, 10:15 PM CDT
In force: 49 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

Counties Allen Parish, LA, 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 00:00Z, 2.4 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-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: 934 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 280228
TORLCH
LAC003-011-280315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
926 PM CDT FRI APR 27 1990
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1015 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...ALLEN PARISH...BEAUREGARD PARISH
 
AT 920 PM CDT A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM NEAR
WINNFIELD TO THE DE RIDDER AREA AND INTO EAST TEXAS.
 
THE BEAUREGARD PARISH SHERIFF DEPARTMENT REPORTS TORNADO TOUCHDOWNS
IN THE MERRYVILLE AREA AND ON HIGHWAY 27 SOUTH OF DE  RIDDER AND
AT BUNDICKS LAKE DURING THE PAST 30 MINUTES.
 
THE LINE OF THUNDERSTORMS PRODUCING THE TORNADOES WAS MOVING EAST AT
45 MPH.
 
THIS IS A VERY DANGEROUS WEATHER SYSTEM AND ALL SAFETY PRECAUTIONS
SHOULD BE TAKEN IMMEDIATELY.
 
 
IF YOU LIVE IN A HOME OR APARTMENT...SEEK SHELTER IN THE
INNERMOST PORTION OF THE BUILDING ON THE LOWEST FLOOR.  AVOID
WINDOWS AND PROTECT YOUR BODY FROM FLYING DEBRIS WITH CUSHIONS...
BLANKETS...OR PILLOWS.

What forecasters said that day

The local office's own words before this tornado 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, Apr 27, 7:44 PM CDT, 1 hour 42 minutes before

LAZ005-006-007-008-011-012-280145-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
742 PM CDT FRI APR 27 1990

...A TORNADO WATCH IS IN EFFECT THIS FRIDAY NIGHT AND SATURDAY MORNING
FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 200 AM...

AT 725 PM...ISOLATED STRONG THUNDERSTORMS WERE SHOWN IN TEXAS FROM
KOUNTZE TO JUST NORTHWEST OF SAN AUGUSTINE. THE THUNDERSTORMS WERE
MOVING SOUTHEAST AT 25 MILES AN HOUR.

STRONG GUSTY WINDS....DANGEROUS CLOUD TO GROUND LIGHTNING...PERIODS
OF VERY HEAVY RAIN...AND SOME HAIL CAN BE EXPECTED WITH THESE
THUNDERSTORMS.

A LARGE AREA OF RAIN MIXED WITH ISOLATED THUNDERSTORMS WAS DETECTED IN
TEXAS FROM THE CONROE AND LAKE LIVINGSTON AREAS....TO NEAR THE NORTHERN
END OF TOLEDO BEND RESERVIOR.

Special weather statement, Apr 27, 8:47 PM CDT, 39 minutes before

LAZ005-006-007-008-011-012-280245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
840 PM CDT FRI APR 27 1990

...A TORNADO WATCH IS IN EFFECT THIS FRIDAY NIGHT AND SATURDAY MORNING
FOR CENTRAL AND SOUTHWEST LOUISIANA UNTIL 200 AM...

AT 825 PM...VERY STRONG THUNDERSTORMS WERE MOVING INTO WEST CENTRAL
AND SOUTHWEST LOUISIANA FROM SOUTHEAST TEXAS. IN LOUISIANA ONE WAS
LOCATED BETWEEN CONVERSE AND MANY...AND OVER SOUTHEAST TEXAS LOCATIONS
WERE JUST EAST OF SAN AUGUSTINE OVER TOLEDO BEND RESERVOIR...AND OVER
KIRBYSVILLE.  THESE THUNDERSTORMS LIKELY CONTAIN LARGE HAIL...GUSTY
WINDS...VERY HEAVY RAINFALL AND DANGEROUS LIGHTNING.

OTHER STRONG THUNDERSTORMS WgERE ACROSS SOUTHEAST TEXAS AND WESTERN
LOUISIANA FROM SHREVEPORT TO BEAUMONT. AND NEAR LAKE LIVINGSTON IN
SOUTHEAST TEXAS.

MOVEMENT WAS NORTHEAST AT 25 MILES AN HOUR.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 8:42 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	63 min
Apr 27, 8:50 PM CDT	Tornado Warning	LCH	Beauregard	40 min
Apr 27, 9:15 PM CDT	Severe Thunderstorm Warning	LCH	Ouachita	2 hr
Apr 27, 9:15 PM CDT	Severe Thunderstorm Warning	LCH	Grant, LaSalle, Rapides	2 hr
Apr 27, 9:51 PM CDT	Tornado Warning	LCH	Evangeline	54 min
Apr 27, 11:49 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	56 min
Apr 28, 12:42 AM CDT	Severe Thunderstorm Warning	LCH	Cameron	48 min

Nearby

Tornado Warnings in Louisiana, 1990 Every tornado warning in 1990 Tornadoes 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.