Alert archive / Louisiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS New Orleans, LA

February 19, 1996Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 19, 1996, 5:55 PM CST for Tangipahoa Parish, Louisiana. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 19, 1996, 5:55 PM CST (23:55 UTC)
Expired
Feb 19, 1996, 7:00 PM CST
In force
65 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Tangipahoa Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 80 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 1996-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 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, Slidell Radar S, LA at 12:00Z on 1996-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.1939587897117Sfc1 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
24 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
259 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 
WUUS1 KNEW 192355 RRA
SVRNEW
LAC105-200100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
555 PM CST MON FEB 19 1996
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CST
FOR RESIDENTS IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST LOUISIANA
 
   ...TANGIPAHOA PARISH
 
AT 555 PM CST DOPPLER WEATHER RADAR SHOWED A LARGE CLUSTER OF SEVERE
THUNDERSTORMS NEAR KENTWOOD MOVING SOUTHEAST AT 25 MILES AN HOUR.
KENTWOOD POLICE REPORTED MARBLE SIZE HAIL IN KENTWOOD AT 540 PM CST.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
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
DEADLY 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, Feb 19, 3:00 PM CST, 2 hours 55 minutes before
LAZ006-014-021-022028-029-032-033-043-044-052-192300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE
400 PM CST MON FEB 19 1996

...THE TORNADO WATCH IS CANCELLED FOR THE FOLLOWING PARISHES IN
   NORTHEAST AND SOUTHWEST LOUISIANA...UNION...QUACHITA...CALDWELL...
   LASALLE...AVOYELLES...EVANGELENE...ST LANDRY...ACADIA...LAFAYETTE
   ...VERNON...

THE THREAT OF SEVERE THUNDERSTORMS AND TORNADOES CONTINUES OVER
EAST CENTpRAL AND SOUTHEAST LOUISIANA...CENTRAL AND SOUTH MISSISSIPPI
UNTIL 7 PM.
Special weather statement, Feb 19, 4:00 PM CST, 1 hour 55 minutes before
LAZ006-014-021-022028-029-032-033-043-044-052-192300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE
400 PM CST MON FEB 19 1996

...THE TORNADO WATCH IS CANCELLED FOR THE FOLLOWING PARISHES IN
   NORTHEAST AND SOUTHWEST LOUISIANA...UNION...QUACHITA...CALDWELL...
   LASALLE...AVOYELLES...EVANGELENE...ST LANDRY...ACADIA...LAFAYETTE
   ...VERNON...

THE THREAT OF SEVERE THUNDERSTORMS AND TORNADOES CONTINUES OVER
EAST CENTRAL AND SOUTHEAST LOUISIANA...CENTRAL AND SOUTH MISSISSIPPI
UNTIL 7 PM.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 19, 12:26 PM CSTSevere Thunderstorm WarningLIXLivingston, Saint Helena, Tangipahoa64 min
Feb 19, 12:56 PM CSTSevere Thunderstorm WarningLIXWashington64 min
Feb 19, 1:04 PM CSTTornado WarningLIXWashington56 min
Feb 19, 2:49 PM CSTSevere Thunderstorm WarningLIXSaint Tammany26 min
Feb 19, 3:18 PM CSTSevere Thunderstorm WarningLIXSaint Tammany42 min
Feb 19, 4:54 PM CSTTornado WarningLIXSaint Helena, Tangipahoa66 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1996Every severe thunderstorm warning in 1996

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.