Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 26, NWS Shreveport, LA

March 27, 1994Claiborne Parish, Louisiana; Columbia County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 27, 1994, 5:25 AM CST for Claiborne Parish, Louisiana; Columbia County, Arkansas. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Mar 27, 1994, 5:25 AM CST (11:25 UTC)
Expired
Mar 27, 1994, 6:30 AM CST
In force
65 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Columbia County, AR, Claiborne Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 11.4 hours before the alert went out and 294 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 00:00Z on 1994-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 989 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 00:00Z on 1994-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 298 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
989 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
298 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
2.4
Supercell composite
8.8

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 Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 4:28 AM CSTSevere Thunderstorm WarningSHVBossier, Caddo62 min
Mar 27, 9:54 AM CSTSevere Thunderstorm WarningSHVCaddo51 min
Mar 27, 10:40 AM CSTSevere Thunderstorm WarningSHVClaiborne, Webster65 min
Mar 27, 11:03 AM CSTSevere Thunderstorm WarningSHVUnion57 min
Mar 27, 12:06 PM CSTSevere Thunderstorm WarningSHVMadison, Tensas69 min
Mar 27, 12:33 PM CSTSevere Thunderstorm WarningSHVCaldwell, Franklin, Richland57 min
Mar 27, 1:15 PM CSTSevere Thunderstorm WarningSHVMadison60 min
Mar 27, 9:33 AM CSTSevere Thunderstorm WarningSHVPanola42 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1994Severe Thunderstorm Warnings in Arkansas, 1994Every severe thunderstorm warning in 1994

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.