Alert archive / Mississippi / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 262, NWS Jackson, MS

May 12, 1995Marion County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 12, 1995, 5:38 AM CDT for Marion County, Mississippi. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
May 12, 1995, 5:38 AM CDT (10:38 UTC)
Expired
May 12, 1995, 6:30 AM CDT
In force
52 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Marion County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.6 hours before the alert went out and 110 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 1995-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1067 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 1995-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1067 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KJAN 121040
SVRJAN
MSC091-121130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
538 AM CDT FRI MAY 12 1995
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...MARION COUNTY
 
AT 538 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF
COLUMBIA MOVING EAST AT 25 MILES AN HOUR. THIS STORM WILL BE MOVING INTO
COLUMBIA BY 550 AM.
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 6:40 AM CDTSevere Thunderstorm WarningJANLamar35 min
May 12, 7:02 AM CDTSevere Thunderstorm WarningJANForrest28 min
May 12, 7:54 AM CDTFlash Flood WarningJANMarion5 hr
May 12, 8:41 AM CDTFlash Flood WarningJANForrest, Lamar5 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 1995Every severe thunderstorm warning in 1995

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.