Alert archive / Louisiana / Tornado Warnings in 1991

Tornado Warning 14, NWS Lake Charles, LA

May 5, 1991Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at May 5, 1991, 8:38 PM CDT for Vermilion Parish, Louisiana. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
May 5, 1991, 8:38 PM CDT (01:38 UTC)
Expired
May 5, 1991, 9:45 PM CDT
In force
67 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Vermilion Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.6 hours before the alert went out and 255 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 1991-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1927 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 1991-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1927 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 7:10 PM CDTSevere Thunderstorm WarningLCHCalcasieu65 min
May 5, 7:28 PM CDTSevere Thunderstorm WarningLCHAllen, Evangeline, Rapides62 min
May 5, 8:09 PM CDTSevere Thunderstorm WarningLCHAcadia, Jefferson Davis66 min
May 5, 8:30 PM CDTSevere Thunderstorm WarningLCHLaSalle, Rapides30 min
May 5, 8:57 PM CDTSevere Thunderstorm WarningLCHCameron, Vermilion63 min

Nearby

Tornado Warnings in Louisiana, 1991Every tornado warning in 1991Tornadoes in 1991

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.