Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 252, NWS New Orleans, LA

May 12, 1995Livingston Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 12, 1995, 2:13 AM CDT for Livingston Parish, Louisiana. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
May 12, 1995, 2:13 AM CDT (07:13 UTC)
Expired
May 12, 1995, 4:15 AM CDT
In force
2 hr
Issued by
NWS New Orleans, LA
Area
Whole counties

County Livingston Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.2 hours before the alert went out and 101 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 00:00Z on 1995-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1067 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 00:00Z on 1995-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.19395878Sfc1 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
1067 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 120716
SVRNEW
LAC033-047-063-120915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
213 AM CDT FRI MAY 12 1995
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 AM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST LOUISIANA
 
   ...EAST BATON ROUGE PARISH...NORTHEASTERN IBERVILLE PARISH
   ...LIVINGSTON PARISH
 
AT 215 AM CDT JUST SOUTHEAST OF BATON ROUGE A SEVERE THUNDERSTORMS
WAS INDICATED BY OUR 88D RADAR. THIS STORM WAS MOVING EAST AT 30
TO 35 MILES AN HOUR.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF z55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 2:13 AM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville67 min
May 12, 2:56 AM CDTSevere Thunderstorm WarningLIXAscension24 min
May 12, 2:56 AM CDTSevere Thunderstorm WarningLIXSaint John the Baptist, Tangipahoa95 min
May 12, 3:28 AM CDTSevere Thunderstorm WarningLIXSaint Tammany102 min
May 12, 5:35 AM CDTSevere Thunderstorm WarningLIXAvoyelles, Saint Landry55 min
May 12, 6:16 AM CDTSevere Thunderstorm WarningLIXAvoyelles, Saint Landry59 min
May 12, 7:16 AM CDTSevere Thunderstorm WarningLIXPointe Coupee44 min
May 12, 7:39 AM CDTSevere Thunderstorm WarningLIXSaint Landry66 min
May 12, 8:38 AM CDTSevere Thunderstorm WarningLIXAvoyelles, Saint Landry67 min
May 12, 9:41 AM CDTSevere Thunderstorm WarningLIXAvoyelles64 min
May 12, 10:11 AM CDTFlash Flood WarningLIXPointe Coupee, West Feliciana64 min
May 12, 10:11 AM CDTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana64 min
May 12, 10:38 AM CDTSevere Thunderstorm WarningLIXIberia, Saint Martin67 min
May 12, 10:57 AM CDTSevere Thunderstorm WarningLIXPointe Coupee42 min
May 12, 10:57 AM CDTSevere Thunderstorm WarningLIXIberville, West Baton Rouge63 min
May 12, 11:27 AM CDTSevere Thunderstorm WarningLIXAssumption, Saint Martin, St. Mary63 min
May 12, 12:23 PM CDTSevere Thunderstorm WarningLIXAssumption, Iberia, Saint Martin, St. Mary67 min
May 12, 12:41 PM CDTSevere Thunderstorm WarningLIXLafourche, Terrebonne64 min
May 12, 1:35 PM CDTTornado WarningLIXAssumption, St. Mary, Terrebonne25 min
May 12, 1:39 PM CDTSevere Thunderstorm WarningLIXLafourche66 min
May 12, 1:54 PM CDTSevere Thunderstorm WarningLIXTerrebonne66 min
May 12, 2:31 PM CDTSevere Thunderstorm WarningLIXLafourche59 min
May 12, 3:11 PM CDTSevere Thunderstorm WarningLIXEast Feliciana53 min
May 12, 3:11 PM CDTSevere Thunderstorm WarningLIXWest Feliciana64 min
May 12, 3:26 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche64 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1995Every severe thunderstorm warning in 1995

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.