Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 402, NWS New Orleans, LA

November 11, 1995Jefferson Parish, Orleans Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Nov 11, 1995, 6:15 AM CST for Jefferson Parish, Orleans Parish, Louisiana. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Nov 11, 1995, 6:15 AM CST (12:15 UTC)
Expired
Nov 11, 1995, 7:00 AM CST
In force
45 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Jefferson Parish, LA, Orleans Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.3 hours before the alert went out and 51 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 1995-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1667 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1995-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 255 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
1667 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
539 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
255 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
2.6
Supercell composite
12.1

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
Nov 11, 5:14 AM CSTSevere Thunderstorm WarningLIXSaint Tammany39 min
Nov 11, 6:15 AM CSTSevere Thunderstorm WarningLIXSaint Bernard45 min
Nov 11, 7:00 AM CSTSevere Thunderstorm WarningLIXPlaquemines90 min
Nov 11, 3:20 AM CSTSevere Thunderstorm WarningLIXWilkinson40 min
Nov 11, 5:14 AM CSTSevere Thunderstorm WarningLIXHancock61 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.