Alert archive / Louisiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 4, NWS Lake Charles, LA

February 21, 1993LaSalle Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 21, 1993, 6:42 AM CST for LaSalle Parish, Louisiana. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Feb 21, 1993, 6:42 AM CST (12:42 UTC)
Expired
Feb 21, 1993, 7:15 AM CST
In force
33 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County LaSalle Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.7 hours before the alert went out and 209 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, Jackson, MS at 12:00Z on 1993-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 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, Jackson, MS at 12:00Z on 1993-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 508 square meters per square second.1939587897Sfc1 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
24 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
508 m²/s²
0-3 km storm-relative helicity
622 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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The text

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

Nearby

Severe Thunderstorm Warnings in Louisiana, 1993Every severe thunderstorm warning in 1993

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.