Alert archive / Texas / Flash Flood Warnings in 1989

Flash Flood Warning 41, NWS Lake Charles, LA

June 29, 1989Jefferson County, Texas

NWS Lake Charles, LA issued this flash flood warning at Jun 29, 1989, 6:13 AM CDT for Jefferson County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 29, 1989, 6:13 AM CDT (11:13 UTC)
Expired
Jun 29, 1989, 9:15 AM CDT
In force
3 hr
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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 11.2 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 00:00Z on 1989-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 420 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 1989-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
420 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
2 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 291115
FFWBPT
TXC245-291415-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
613 AM CDT THU JUN 29 1989
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST TEXAS
          ...EASTERN JEFFERSON
 
MODERATE TO HEAVY RAINS ARE FALLING IN PORT ARTHUR AND MID JEFFERSON
COUNTY AT 615 AM CDT.
 
PORT ARTHUR POLICE REPORT FLOODING ON 9TH AVENUE NEAR 75TH STREET AND
IN THE UNDERPASS AT THE 900 BLOCK OF GULWAY DRIVE.
 
MODERATE TO HEAVY RAINS WILL CONTINUE FOR AT LEAST 2 TO 4 HOUR.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
NNNN

What forecasters said that day

The local office's own words before this flash flood 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, Jun 29, 12:37 AM CDT, 5 hours 36 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1232 AM CDT THU JUN 29 1989

...ANOTHER TWO INCHES OF RAIN AT LAKE CHARLES PAST HOUR. STREET
FLOODING LIKELY...

AT 1225 AM...A LINE OF NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN WAS
SHOWN FROM FORT POLK SOUTH TO LAKE CHARLES AND CAMERON INTO THE GULF
25 MILES SOUTH OF SABINE PASS.

THE THUNDERSTORMS WERE MOVING NORTH AT 20 MPH.

WIDESPREAD RAIN WITH SCATTERED THUNDERSTORMS MIXED IN THE RAIN COVERED
THE WEST HALF OF LOUISIANA FROM MANSFIELD AND MONROE SOUTH ACROSS
ALEXANDRIA AND LAKE CHARLES INTO THE GULF.

HEAVY RAIN WILL CAUSE ADDITIONAL FLOODING IN ALLEN...JEFF DAVIS...
CAMERON...AND A FLASH FLOOD W%ARNING IS BEING ISSUED FOR CALCASIEU
PARISH.
Special weather statement, Jun 29, 5:54 AM CDT, 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
545 AM CDT THU JUN 29 1989

...FLASH FLOOD WATCH IN EFFECT TODAY FOR SOUTHWEST AND WEST LOUISIANA
...CENTRAL AND SOUTH CENTRAL LOUISIANA...

AT 530 AM...BANDS OF SCATTERED THUNDERSTORMS MIXED IN WIDESPREAD RAIN
WERE LOCATED IN EAST TEXAS FROM JASPER AND KIRBYVILLE  SOUTH ACROSS
ORANGE AND PORT ARTHUR INTO THE GULF 30 MILES SOUTH TO 60 MILES SOUTH
WEST OF SABINE PASS...AND IN LOUISIANA FROM JUST EAST OF THE TOLEDO
BEND RESERVOIR TO SOUTH OF WINNFIELD SOUTH TO EUNICE...OPELOUSAS...
CROWLEY ACROSS WHITE LAKE INTO THE GULF...LAFAYETTE TO THE ATCHAFALAYA
BAY SOUTH INTO THE GULF 75 MILES...AND SOUTHWEST MISSISSIPPI TO NEAR
AND SOUTHEAST OF BATON ROUGE.

MASSIVE RAIN WITH THUNDERSTORMS MIXED IN THE RAIN COVERED EXTREME EAST
TEXAS AND MOST OF THE WEST TWO THIRDS OF LOUISIANA INTO THE GULF TO
BEYOND 100 MILES SOUTHEAST THROUGH SOUTHWEST OF GALVESTON AND FREEPORT.

MOVEMENT IN NORTH LOUISIANA WAS WEST AT 15 MPH...SOUTH CENTRAL
LOUISIANA AND THE GULF NORTH AT 25 MPH.

SCATTERED HEAVY RAIN CONTINUES AROUND ALEXANDRIA AND LAFAYETTE BUT
RAIN HAS SLACKED UP AROUND LAKE CHARLES.

NEVERTHELESS...MANY REPORTS OF FLOODED STREETS IN LAKE CHARLES HAVE
BEEN RECEIVED. MOTORISTS SHOULD NOT ONLY USE EXTREME CAUTION BUT
UNNECESSARY DRIVING SHOULD BE PUT OFF FOR ANOTHER FEW HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 5:27 AM CDTFlash Flood WarningLCHOrange4 hr

Nearby

Flash Flood Warnings in Texas, 1989Every flash flood warning in 1989

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.