Alert archive / Louisiana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 138, NWS New Orleans, LA

November 21, 1992Ascension Parish, Iberville Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Nov 21, 1992, 10:24 PM CST for Ascension Parish, Iberville Parish, Louisiana. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Nov 21, 1992, 10:24 PM CST (04:24 UTC)
Expired
Nov 21, 1992, 11:15 PM CST
In force
51 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Ascension Parish, LA, Iberville Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.4 hours before the alert went out and 137 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 1992-11-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1992-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

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 21, 8:21 PM CSTSevere Thunderstorm WarningLIXAvoyelles, Catahoula, Concordia69 min
Nov 21, 8:21 PM CSTSevere Thunderstorm WarningLIXSaint Landry69 min
Nov 21, 9:32 PM CSTSevere Thunderstorm WarningLIXAvoyelles, Concordia, Pointe Coupee, West Baton Rouge, West Feliciana58 min
Nov 21, 9:32 PM CSTSevere Thunderstorm WarningLIXSaint Landry58 min
Nov 21, 9:32 PM CSTSevere Thunderstorm WarningLIXIberville58 min
Nov 21, 10:24 PM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana51 min
Nov 21, 10:24 PM CSTSevere Thunderstorm WarningLIXPointe Coupee, West Baton Rouge, West Feliciana36 min
Nov 21, 11:54 PM CSTSevere Thunderstorm WarningLIXLivingston36 min
Nov 22, 12:15 AM CSTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa60 min
Nov 22, 12:29 AM CSTSevere Thunderstorm WarningLIXJefferson, Saint Charles61 min
Nov 22, 12:29 AM CSTSevere Thunderstorm WarningLIXSaint Tammany61 min
Nov 22, 1:14 AM CSTSevere Thunderstorm WarningLIXOrleans, Saint Bernard46 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1992Every severe thunderstorm warning in 1992

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.