Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 401, NWS Shreveport, LA

November 27, 19945 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Nov 27, 1994, 3:21 PM CST for 5 parishes in Louisiana. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Nov 27, 1994, 3:21 PM CST (21:21 UTC)
Expired
Nov 27, 1994, 4:30 PM CST
In force
69 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Bienville Parish, LA, Jackson Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Winn Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.4 hours before the alert went out and 220 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 12:00Z on 1994-11-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 920 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 12:00Z on 1994-11-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 248 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
920 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
248 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
1.3
Supercell composite
8.0

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
Nov 27, 12:46 PM CSTSevere Thunderstorm WarningSHVWebster29 min
Nov 27, 3:29 PM CSTSevere Thunderstorm WarningSHVUnion61 min
Nov 27, 5:49 PM CSTSevere Thunderstorm WarningSHVMadison56 min
Nov 27, 12:19 PM CSTSevere Thunderstorm WarningSHVColumbia, Lafayette56 min
Nov 27, 12:56 PM CSTSevere Thunderstorm WarningSHVColumbia64 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.