Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 87, NWS Lake Charles, LA

July 30, 1990Jefferson County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 30, 1990, 4:40 PM CDT for Jefferson County, Texas. It was in force for 65 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 30, 1990, 4:40 PM CDT (21:40 UTC)
Expired
Jul 30, 1990, 5:45 PM CDT
In force
65 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Jefferson County, TX

The radar

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

What was reported inside it

TimeReportWhereRemark
Jul 30, 4:40 PM CDTThunderstorm Wind 51Jefferson, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.7 hours before the alert went out and 96 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 1990-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1165 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 1990-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
1165 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1331 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
-50 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 KBPT 302140
SVRBPT
TXC245-302245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
440 PM CDT MON JUL 30 1990
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM CDT
FOR PERSONS IN THE FOLLOWING COUNTIES
 
IN SOUTHEAST TEXAS
 
   ...SOUTHERN JEFFERSON COUNTY
 
AT 440 PM...A SEVERE THUNDERSTORM WAS OVER THE JEFFERSON COUNTY
AIRPORT. HAIL HAS BEEN REPORTED IN NEDERLAND.
 
WINDS HAVE GUSTED TO 63 MPH AT THE JEFFERSOJN COUNTY AIRPORT.
 
THE SEVERE THUNDERSTORM IS DRIFTING SOUTHWEST AT 5 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LCIGHTNING...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.
 
NNNN

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 30, 2:36 PM CDT, 2 hours 4 minutes before
TXZ033-046-048-302045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
236 PM CDT MON JUL 30 1990

...STRONG THUNDERSTORMS DEVELOPING IN SOUTHEAST TEXAS...

AT 215 PM CDT THUNDERSTORMS WERE DEVELOPING NORTH OF A LINE
FROM CENTRAL ORANGE COUNTY TO NORTHERN HARDIN COUNTY.

THE STRONGEST ACTIVITY WAS LOCATED IN WESTERN NEWTON AND EASTERN
JASPER COUNTIES. PEA SIZE HAIL...HEAVY RAINFALL AND DANGEROUS
LIGHTNING HAS BEEN REPORTED IN KIRBYVILLE.

ALONG WITH DANGEROUS LIGHTNING...SMALL HAIL... PERSONS IN SOUTHEAST
TEXAS SHOULD BE PREPARED FOR LOCAL FLOODING. THESE THUNDERSTORMS
WITH HEAVY RAINFALL ARE VERY SLOWLY MOVING TO THE WEST COULD CAUSE
TRAFFIC PROBLEMS THIS AFTERNOO-N.

NNNN
Special weather statement, Jul 30, 3:18 PM CDT, 1 hour 22 minutes before
TXZ033-046-048-302115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
318 PM CDT MON JUL 30 1990

...THUNDERSTORMS RUMBLING ACROSS SOUTHEAST TEXAS THIS AFTERNOON...

315 PM CDT...NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAINS AND
DANGEROUS LIGHTNING WERE NEAR WOODVILLE..JASPER..NEWTON..BEAUMONT AND
ORANGE TEXAS. THE THUNDERSTORMS ARE FORMING AS A RESULT OF THE DAYTIME
HEATING AND MOVING SLOWLY WEST.

THE STRONGEST STORMS WERE NORTH OF NEWTON TEXAS NEAR WOODVILLE AND
ORANGE TEXAS. THE THUNDERSTORMS WILL CONTINUE UNTIL SUNSET AND PRODUCE
VERY HEAVY RAINS WITH SOME LOCAL STREET FLOODING POSSIBLE. HAIL
ASSOCIATED WITH THE THUNDERSTORMS HAD BEEN OBSERVED.

PERSONS THROUGHOUT SOUTHEAST TEXAS SHOULD MONITOR THE LOCAL NOAA
WEATHER RADIO..LOCAL TV OR RADIO STATIONS FOR FURTHUR STATEMENTS AND
POSSIBLE WARNINGS WHICH MAY BE ISSUED LATER THIS AFTERNOON.

IF SEVERE WEATHER APPROACHES YOUR AREA SEEK SAFE SHELTER AND REPORT
ANY SEVERE WEATHER DAMAGES TO THE LOCAL NATIONAL WEATHER SERVICE.

NNNN
Special weather statement, Jul 30, 3:39 PM CDT, 1 hour 1 minute before
LAZ005-006-007-008-011-012-302140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
435 PM CDT MON JUL 30 1990

AT 425 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OCCURRING
FROM NEAR OAKDALE...DE RIDDER...AND JASPER TEXAS TO THE KINDER...DE QUINCY
...ORANGE TEXAS...AND BEAUMONT TEXAS AREAS.    THE THUNDERSTORMS WERE
DRIFTING SLOWLY SOUTHWEST.

THE THUNDERSTORMS OVER WESTERN CALCASIEU PARISH...AND OVER BEAUREGARD AND
ALLEN PARISHES IN SOUTHWEST LOUISIANA WILL PRODUCE GUSTY WINDS...DANGEROUS
CLOUD TO GROUND LIGHTNING...LOCAL FLOODING OF STREETS AND OTHER LOW PLACES
...AND POSSIBLY SOME SMALL HAIL DURING THE NEXT HOUR.

RADAR ALSO SHOWED WIDELY SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH
HEAVY RAIN OVER SOUTHEAST TEXAS AND OVER THAT PART OF LOUISIANA BETWEEN
MANY...MANSFIELD...AND WINNFIELD.

ISOLATED SHOWERS AND THUNDERSTORMS WERE SHOWN IN THE GULF 60 MILES SOUTHEAST
OF GALVESTON...ALONXG THE SOUTHEAST TEXAS COAST NEAR FREEPORT...AND
BETWEEN LAKE CHARLES AND LAFAYETTE.
Special weather statement, Jul 30, 4:34 PM CDT, 6 minutes before
LAZ005-006-007-008-011-012-302240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
430 PM CDT MON JUL 30 1990

AT 425 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OCCURRING
IN SOUTHEAST TEXAS IN THE VICINITY OF BEAUMONT EXTENDING NORTHWARD ALONG
THE NECHES RIVER TO THE SOUTHERN PORTIONS OF RAYBURN LAKE. THESE STORMS
DRIFTING SLOWLY SOUTHWEST.

THESE THUNDERSTORMS ARE LIKELY TO PRODUCE GUSTY WINDS...DANGEROUS CLOUD
TO GROUND LIGHTNING...LOCAL FLOODING OF STREETS AND OTHER LOW PLACES
...AND POSSIBLY SOME SMALL HAIL DURING THE NEXT HOUR.

RADAR ALSO SHOWED SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY
RAIN OVER BETWEEN SHREVEPORT AND ALEXNADRIA AND NORTHWEST AND NORTHEAST
OF LAKE CHARLES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 4:16 PM CDTSevere Thunderstorm WarningLCHSan Augustine59 min
Jul 30, 4:20 PM CDTSevere Thunderstorm WarningLCHOrange55 min
Jul 30, 5:53 PM CDTSevere Thunderstorm WarningLCHAngelina67 min

Nearby

Severe Thunderstorm Warnings in Texas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.