Alert archive / Louisiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 147, NWS New Orleans, LA

May 29, 1996Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 29, 1996, 12:43 PM CDT for Saint Tammany Parish, Louisiana. It was in force for 62 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 29, 1996, 12:43 PM CDT (17:43 UTC)
Expired
May 29, 1996, 1:45 PM CDT
In force
62 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Saint Tammany Parish, LA

What was reported inside it

TimeReportWhereRemark
May 29, 12:45 PM CDTThunderstorm WindMandeville, LA
May 29, 12:50 PM CDTThunderstorm WindSlidell, LA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.7 hours before the alert went out and 313 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 12:00Z on 1996-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3062 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 12:00Z on 1996-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
3062 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
618 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 3:53 AM CDTSevere Thunderstorm WarningLIXWashington52 min
May 29, 10:53 AM CDTSevere Thunderstorm WarningLIXTangipahoa67 min
May 29, 10:53 AM CDTSevere Thunderstorm WarningLIXSaint Helena67 min
May 29, 11:10 AM CDTSevere Thunderstorm WarningLIXWashington65 min
May 29, 11:47 AM CDTSevere Thunderstorm WarningLIXLivingston, Saint Tammany, Tangipahoa58 min
May 29, 12:13 PM CDTSevere Thunderstorm WarningLIXWashington62 min
May 29, 12:43 PM CDTSevere Thunderstorm WarningLIXSaint Charles, Saint John the Baptist62 min
May 29, 12:43 PM CDTSevere Thunderstorm WarningLIXOrleans, Plaquemines, Saint Bernard62 min
May 29, 12:48 PM CDTSevere Thunderstorm WarningLIXOrleans, Saint Tammany57 min
May 29, 12:48 PM CDTSevere Thunderstorm WarningLIXJefferson, Saint Charles, Saint John the Baptist57 min
May 29, 12:48 PM CDTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard57 min
May 29, 1:44 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Plaquemines61 min
May 29, 1:44 PM CDTSevere Thunderstorm WarningLIXSaint Bernard61 min
May 29, 1:44 PM CDTSevere Thunderstorm WarningLIXTerrebonne61 min
May 28, 9:14 PM CDTFlash Flood WarningLIXHarrison3 hr
May 29, 3:37 AM CDTSevere Thunderstorm WarningLIXPike53 min
May 29, 12:13 PM CDTSevere Thunderstorm WarningLIXHancock, Pearl River62 min
May 29, 1:13 PM CDTSevere Thunderstorm WarningLIXHancock62 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.