Alert archive / Louisiana / Tornado Warnings in 1989

Tornado Warning 16, NWS New Orleans, LA

June 14, 1989Assumption Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jun 14, 1989, 3:10 PM CDT for Assumption Parish, Louisiana. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1989, 3:10 PM CDT (20:10 UTC)
Expired
Jun 14, 1989, 4:00 PM CDT
In force
50 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Assumption 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.2 hours before the alert went out and 137 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, Slidell Radar S, LA at 12:00Z on 1989-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3040 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 1989-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
3040 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 142011
TORNEW
LAC007-142100-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
310 PM CDT WED JUN 14 1989
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  400 PM CDT
FOR PEOPLE IN THE FOLLOWING PARISH...
 
IN SOUTHEAST LOUISIANA
          ...ASSUMPTION
 
AT 245 THE MORGAN CITY POLICE DEPT REPORTED A TORNADO TOUCHED DOWN
JUST EAST OF MORGAN CITY. THE THUNDERSTORM WHICH SPWANED THIS TORNADO
IS MOVING NORTHEAST AT 25 MILES AN HOUR.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR RObOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

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, Jun 14, 11:41 AM CDT, 3 hours 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1135 AM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 3 PM FOR ALL OF
SOUTHEAST LOUISIANA...

SCATTERED CLUSTERS OF THUNDERSTORMS CONTINUED FROM MORGAN CITY LOUISIANA
TO THE WESTERN END OF LAKE PONTCHARTRAIN TO JUST NORTH OF BATON ROUGE
AND FROM BOGALUSA NORTHEAST ACROSS SOUTHEAST MISSISSIPPI TO THE STATE
LINE EAST OF LAUREL.

THESE THUNDERSTORMS CAN PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...
PERIODS OF VERY HEAVY RAIN AND SMALL HAIL AS THEY MOVE NORTH ACROSS THE
AREA AT 35 MILES AN HOUR. MARINE INTEREST ON AREA LAKES AND STREAMS
SHOULD REMAIN ALERT AND IF THREATENIN=G WEATHER IS SIGHTED TAKE  THE
NECESSARY PRECAUTIONS FOR THE PROTECTION OF LIFE AND PROPERTY.
Special weather statement, Jun 14, 11:48 AM CDT, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
1150 AM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 300 PM CDT FOR ALL
OF EAST CENTRAL LOUISIANA WITH THE EXCEPTION OF CATAHOULA PARISH...

RADAR SHOWED THUNDERSTORMS WITH HEAVY RAIN ACROSS MUCH OF EAST CENTRAL
LOUISIANA AND EXTREME SOUTHWEST MISSISSIPPI EXTENDING WEST TO SOUTHWEST
LOUISIANA AND ADJECENT COASTAL WATERS.  MOVEMENT WAS TON THE NORTHEAST
NEAR 35 MPH.

AS THE STRONG THUNDERSTORMS MOVE THROUGH EAST CENTRAL LOUISIANA...THEY
WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...DANGEROUS LIGHTNING AND
SMALL HAIL.  THE HEAVY RAIN MAY CAUSE FLOODING OF LOW LYING AREAS SUCH
AS STREETS AND UNDERPASSES.  MOTORISTS ARE ADVISED TO DRIVE WITH CARE.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  PERSONS IN
AND CLOSE TO THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR THREBATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Jun 14, 12:47 PM CDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1235 PM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 3 PM FOR ALL OF
SOUTHEAST LOUISIANA...

SCATTERED THUNDERSTORMS WITH LARGE PATCHES OF LIGHT RAIN CONTINUED
FROM MORGAN CITY AND HOUMA NORTHEAST ACROSS BATON ROUGE AND MC COMB
TO THE LAUREL MISSISSIPPI AREA. A SMALL CLUSTER OF THUNDERSTORMS WAS
OVER THE MOBILE ALABAMA AREA.

THESE THUNDERSTORMS CAN PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...
PERIODS OF VERY HEAVY RAIN AND SMALL HAIL AS THEY MOVE NORTH ACROSS THE
AREA. MARINE INTEREST ON AREA LAKES AND STREAMS SHOOULD REMAIN ALERT
AND IF THREATENING WEATHER IS SIGHTED TAKE NECESSARY PRECAUTIONS FOR
THE PROTECTION OF LIFE AND PROPERTY.
Special weather statement, Jun 14, 1:05 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
105 PM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 300 PM CDT FOR EAST
FELICIANA...ST. HELENA...LIVINGSTON...EAST AND WEST BATON ROUGE...
IBERVILLE AND ASCENSION PARISHES UNTIL 300 PM CDT...THE WATCH HAS BEEN
CANCELLED AND IS NO LONGER IN EFFECT FOR AVOYELLES...CONCORDIA...ST.
LANDRY...POINTE COUPEE...AND WEST FELICIANA PARISHES...

RADAR SHOWED THUNDERSTORMS WITH HEAVY RAIN ACROSS MUCH OF EAST CENTRAL
LOUISIANA AND EXTREME SOUTHWEST MISSISSIPPI EXTENDING ACROSS SOUTHERN
LOUISIANA INTO ADJECENT COASTAL WATERS.  MOVEMENT WAS TON THE NORTHEAST
NEAR 35 MPH.

AS THE STRONG THUNDERSTORMS MOVE THROUGH EAST CENTRAL LOUISIANA...THEY
WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...DANGEROUS LIGHTNING AND
SMALL HAIL.  THE HEAVY RAIN MAY CAUSE FLOODING OF LOW LYING AREAS SUCH
AS STREETS AND UNDERPASSES.  MOTORISTS ARE ADVISED TO DRIVE WITH CARE.
   -
A WIND GUST TO 43 MPH WAS RECORDED AT BATON ROUGE METRO AIRPORT DURING
THE PAST HOUR ALONG WITH ABOUT 2 AND A HALF INCHES OF RAINFALL SINCE
1030 AM CDT.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Jun 14, 2:03 PM CDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
205 PM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 300 PM CDT
FOR EAST FELICIANA...ST. HELENA...LIVINGSTON...EAST AND WEST BATON
ROUGE...IBERVILLE AND ASCENSION PARISHES OF EAST CENTRAL LOUISIANA...

RADAR SHOWED THUNDERSTORMS WITH HEAVY RAIN ACROSS MUCH OF EAST CENTRAL
LOUISIANA AND EXTREME SOUTHWEST MISSISSIPPI.  THE AREA WAS WEST OF A
LINE FROM JACKSON MS TO COVINGTON LA TO MORGAN CITY LA EXTENDING WEST
INTO TEXAS AND SOUTH INTO THE GULF.  MOVEMENT WAS NORTHEAST AT 30 MPH.

AS THE STRONG THUNDERSTORMS MOVE THROUGH EAST CENTRAL LOUISIANA...THEY
WILL PRODUCE STRONG GUSTY WINDS...HEAVY RAIN...DANGEROUS LIGHTNING AND
SMALL HAIL.  THE HEAVY RAIN HAS CAUSED FLOODING OF STREETS AND UNDER-
PASSES METROPOLITAN BATON ROUGE AND SURROUNDING AREAS.  MOTORIST ARE
ADVISED THAT NUMEROUS STREETS IN THE CITY HAVE BEEN CLOSED DUE TO
FLOODING.  TRAVELING IF NECESSARY WILL BE SLOW.
.
ADDITIONAL HEAVY RAINS WILL MOVE ACROSS EAST CENTRAL LOUISIANA DURNING
THE NEXT SEVERAL HOURS AND WILL CAUSE MORE FLOODING. METRO AIRPORT IN
BATON ROUGE HAS HAD OVER 3 AND A HALF INCHES OF RAIN SINCE 1030 AM CDT.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Jun 14, 2:46 PM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
240 PM CDT WED JUN 14 1989

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 3 PM FOR ALL OF
SOUTHEAST LOUISIANA...

...ANOTHER SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FROM 3 PM CDT
UNTIL 8 PM CDT FOR ALL OF SOUTHEAST LOUISIANA EXCEPT UPPER
ST. MARTIN...

AN ALMOST SOLID LINE OF THUNDERSTORMS EXTENDED FROM ATVHAFALAYA BAY
NORTH ACROSS MORGAN CITY TO DENHAM SPRINGS TO MC COMB  TO JUST EAST
OF JACKSON MISSISSIPPI. THE LINE IS DRIFTING EAST AT 5 TO 10 MPH.

THESE THUNDERSTORMS CAN PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...
PERIODS OF VERY HEAVY RAIN AND SMALL HAIL AS THEY MOVE ACROSS THE
AREA. DUE TO THE SLOW EASTWARD MOVEMENT OF THE LINE RAINFALL AMOUNTS
MAY CAUSE SOME LOCAL STREET AND SMALL STREAM FLOODING. MOTORIST DRIVING
IN THE WATCH AREA SHOULD AVOID FLOODED STREETS AND UNDERPASSES THAT
ARE KNOWN TO FLOOD.  MARINE INTEREST ON AREA LAKES AND SMALL STREAMS
SHOULD REMAIN ALERT AND IF THREATENING WEATHER IS SIGHTED SEEK SHELTER
IMMEDIATELY.

ELSEWHERE...LARGE PATCHES OF LIGHT RAIN WITH A FEW THUNDERSTORMS
CONTINUED ACROSS A LARGE PART OF CENTRAL AND SOUTHEAST LOUISIANA..L.
SOUTHERN MISSISSIPPI AND CONTINUED TO SPREAD INTO SOUTHWEST ALABAMA.

THE THUNDERSTORMS WERE MOVING NORTH AT 35 MILES AN HOUR.

Nearby

Tornado Warnings in Louisiana, 1989Every tornado warning in 1989Tornadoes 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.