Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 47, NWS New Orleans, LA

May 7, 1994Concordia Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 7, 1994, 7:57 PM CDT for Concordia Parish, Louisiana. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
May 7, 1994, 7:57 PM CDT (00:57 UTC)
Expired
May 7, 1994, 8:30 PM CDT
In force
33 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Concordia Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.0 hours before the alert went out and 228 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 1994-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1422 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, Slidell Radar S, LA at 00:00Z on 1994-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.193958Sfc1 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
1422 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.7

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
May 7, 7:28 PM CDTSevere Thunderstorm WarningLIXAvoyelles62 min
May 7, 8:27 PM CDTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana63 min
May 7, 9:14 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, West Baton Rouge46 min
May 7, 9:14 PM CDTSevere Thunderstorm WarningLIXEast Feliciana39 min
May 7, 10:07 PM CDTSevere Thunderstorm WarningLIXAscension, Livingston68 min
May 7, 10:07 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge31 min
May 7, 10:16 PM CDTSevere Thunderstorm WarningLIXSaint James, Saint John the Baptist59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.