Alert archive / Louisiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 90, NWS Shreveport, LA

March 30, 1993Franklin Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 30, 1993, 7:21 PM CST for Franklin Parish, Louisiana. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Mar 30, 1993, 7:21 PM CST (01:21 UTC)
Expired
Mar 30, 1993, 8:30 PM CST
In force
69 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Franklin Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.4 hours before the alert went out and 267 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 00:00Z on 1993-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1564 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 00:00Z on 1993-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939587897117Sfc1 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
1564 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
-0.2
Supercell composite
-1.4

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 Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 6:07 PM CSTTornado WarningSHVCaldwell, Jackson, Ouachita68 min
Mar 30, 6:35 PM CSTSevere Thunderstorm WarningSHVMorehouse, Ouachita, Richland55 min
Mar 30, 6:35 PM CSTSevere Thunderstorm WarningSHVTensas55 min
Mar 30, 7:21 PM CSTSevere Thunderstorm WarningSHVMorehouse, Richland, West Carroll69 min
Mar 30, 7:51 PM CSTSevere Thunderstorm WarningSHVSabine69 min
Mar 30, 7:51 PM CSTSevere Thunderstorm WarningSHVEast Carroll69 min
Mar 30, 8:32 PM CSTSevere Thunderstorm WarningSHVNatchitoches58 min

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.