Alert archive / Mississippi / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 246, NWS New Orleans, LA

December 1, 1996Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Dec 1, 1996, 1:23 AM CST for Jackson County, Mississippi. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 1, 1996, 1:23 AM CST (07:23 UTC)
Expired
Dec 1, 1996, 2:00 AM CST
In force
37 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Jackson County, MS

The radar

The Mobile radar (KMOB), 44 km from the middle of the area, began a volume at 07:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.4 hours before the alert went out and 106 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 1996-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 748 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 1996-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 square meters per square second.19395878Sfc1 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
748 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
356 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.7

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Nov 30, 11:25 PM CST, 1 hour 58 minutes before
LAZ038>040-057>070-MSZ077-080>082-010600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE
1120 PM CST NOV 30 1996

THE TORNADO WATCH FOR SECTIONS OF SOUTHEAST LOUISIANA AND COASTAL
MISSISSIPPI EXPIRED AT 1100 PM CST. ALTHOUGH SCATTERED SHOWERS AND
THUNDERSTORMS WILL CONTINUE INTO THE EARLY MORNING HOURS...THE THREAT
OF SEVERE WEATHER HAS ENDED.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 30, 6:19 PM CSTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa41 min
Nov 30, 7:25 PM CSTSevere Thunderstorm WarningLIXWashington35 min
Dec 1, 12:33 AM CSTTornado WarningLIXHarrison27 min
Dec 1, 12:44 AM CSTTornado WarningLIXJackson31 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.