Alert archive / Louisiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 116, NWS New Orleans, LA

April 14, 1996Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 14, 1996, 11:17 PM CDT for Saint Tammany Parish, Louisiana. It was in force for 58 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
Apr 14, 1996, 11:17 PM CDT (04:17 UTC)
Expired
Apr 15, 1996, 12:15 AM CDT
In force
58 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Saint Tammany Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.3 hours before the alert went out and 30 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 1996-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2003 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 1996-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.193958Sfc1 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
2003 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
297 m²/s²
Significant tornado parameter
3.5
Supercell composite
14.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Apr 14, 6:39 PM CDT, 4 hours 38 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-150030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
614 PM CDT SUN APR 14 1996

...THE TORNADO WATCH FOR SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI
   EXPIRED AT 6 PM CDT...
...A TORNADO WATCH REMAINS IN EFFECT UNTIL 7 PM CDT FOR SOUTHWEST
   MISSISSIPPI TO INCLUDE WILKINSON..AMITE..PIKE AND WALTHALL
   COUNTIES...
...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR TONIGHT ACROSS
   SOUTHEAST LOUISIANA AND COASTAL MISSISSIPPI...

MUCH OF THE THUNDERSTORM ACTIVITY HAS DIMINISHED ACROSS THE WATCH
AREA LATE THIS AFTERNOON HOWEVER NEW DEVELOPMENT WILL OCCUR. THE MAIN
CONCERN TONIGHT WILL BE HEAVY RAINFALL. STAY TUNED FOR LATER0 STATEMENTS
AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 7:17 PM CDTSevere Thunderstorm WarningLIXTangipahoa58 min
Apr 14, 7:43 PM CDTTornado WarningLIXTangipahoa32 min
Apr 14, 7:56 PM CDTTornado WarningLIXSaint Tammany34 min
Apr 14, 8:32 PM CDTTornado WarningLIXSaint Tammany28 min
Apr 14, 9:01 PM CDTTornado WarningLIXSaint Tammany44 min
Apr 15, 12:28 AM CDTSevere Thunderstorm WarningLIXTangipahoa47 min
Apr 15, 12:51 AM CDTSevere Thunderstorm WarningLIXAscension, Livingston69 min
Apr 15, 1:37 AM CDTTornado WarningLIXSaint Tammany23 min
Apr 15, 2:26 AM CDTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard49 min
Apr 15, 2:34 AM CDTSevere Thunderstorm WarningLIXJefferson, Orleans41 min
Apr 15, 2:34 AM CDTSevere Thunderstorm WarningLIXSaint Charles41 min
Apr 14, 8:56 PM CDTSevere Thunderstorm WarningLIXPike34 min
Apr 14, 10:08 PM CDTSevere Thunderstorm WarningLIXWilkinson52 min
Apr 14, 10:36 PM CDTSevere Thunderstorm WarningLIXAmite69 min
Apr 15, 2:16 AM CDTSevere Thunderstorm WarningLIXHancock, Pearl River29 min
Apr 15, 2:49 AM CDTFlash Flood WarningLIXHancock, Harrison, Pearl River4 hr
Apr 15, 2:49 AM CDTFlash Flood WarningLIXJackson4 hr

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.