Alert archive / Mississippi / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 81, NWS Jackson, MS

April 12, 1994Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 12, 1994, 5:08 PM CDT for Lamar County, Mississippi. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 5:08 PM CDT (22:08 UTC)
Expired
Apr 12, 1994, 6:00 PM CDT
In force
52 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Lamar County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.1 hours before the alert went out and 108 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 12:00Z on 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 970 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 12:00Z on 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
970 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.4

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 Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 3:25 AM CDTSevere Thunderstorm WarningJANIssaquena35 min
Apr 12, 4:23 PM CDTFlash Flood WarningJANForrest2 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.