Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 308, NWS Shreveport, LA

July 27, 1994Franklin Parish, Tensas Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jul 27, 1994, 2:15 AM CDT for Franklin Parish, Tensas Parish, Louisiana. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1994, 2:15 AM CDT (07:15 UTC)
Expired
Jul 27, 1994, 3:15 AM CDT
In force
60 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Franklin Parish, LA, Tensas Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 7.3 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, Jackson, MS at 00:00Z on 1994-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 805 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 1994-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
805 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
894 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

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
Jul 26, 9:48 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo72 min
Jul 26, 11:48 PM CDTSevere Thunderstorm WarningSHVCaldwell, Ouachita, Richland57 min
Jul 27, 12:17 AM CDTSevere Thunderstorm WarningSHVEast Carroll, Madison43 min
Jul 27, 12:40 AM CDTSevere Thunderstorm WarningSHVFranklin, Tensas65 min
Jul 27, 1:07 AM CDTSevere Thunderstorm WarningSHVWinn23 min
Jul 27, 2:15 AM CDTSevere Thunderstorm WarningSHVNatchitoches60 min
Jul 26, 8:47 PM CDTSevere Thunderstorm WarningSHVCass43 min
Jul 26, 8:02 PM CDTSevere Thunderstorm WarningSHVHempstead43 min
Jul 26, 8:21 PM CDTSevere Thunderstorm WarningSHVMiller54 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.