Alert archive / Louisiana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 201, NWS Jackson, MS

April 20, 1995Concordia Parish, Louisiana; Adams County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 20, 1995, 7:53 PM CDT for Concordia Parish, Louisiana; Adams County, Mississippi. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Apr 20, 1995, 7:53 PM CDT (00:53 UTC)
Expired
Apr 20, 1995, 8:45 PM CDT
In force
52 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Concordia Parish, LA, Adams County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.9 hours before the alert went out and 164 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, Jackson, MS at 00:00Z on 1995-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2096 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, Jackson, MS at 00:00Z on 1995-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 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
2096 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
4.0
Supercell composite
14.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 210054
SVRJAN
LAC029-MSC001-210145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
753 PM CDT THU APR 20 1995
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN NORTHEAST LOUISIANA
 
   ...SOUTHERN CONCORDIA PARISH
 
 
IN SOUTHWEST MISSISSIPPI
 
   ...ADAMS COUNTY
 
AT 750 PM RADAR INDICATED SEVERE THUNDERSTORMS FIVE MILES EAST OF
SLOCUM. IT WAS MOVING NORTHEAST AT 40 MPH. IT WILL PASS JUST SOUTH OF
NATCHEZ BY 820 PM.
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANNCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 7:01 PM CDTSevere Thunderstorm WarningJANCatahoula, Concordia44 min
Apr 20, 8:26 PM CDTFlash Flood WarningJANMadison3 hr
Apr 20, 7:19 PM CDTTornado WarningJANHinds, Rankin41 min
Apr 20, 7:41 PM CDTTornado WarningJANLeake49 min
Apr 20, 7:46 PM CDTSevere Thunderstorm WarningJANMadison29 min
Apr 20, 8:03 PM CDTTornado WarningJANHinds42 min
Apr 20, 8:14 PM CDTFlash Flood WarningJANHinds, Madison3 hr
Apr 20, 8:14 PM CDTFlash Flood WarningJANLeake3 hr
Apr 20, 8:16 PM CDTTornado WarningJANLeake, Neshoba44 min
Apr 20, 8:44 PM CDTFlash Flood WarningJANHinds3 hr
Apr 20, 9:25 PM CDTSevere Thunderstorm WarningJANNoxubee50 min
Apr 20, 10:39 PM CDTSevere Thunderstorm WarningJANJasper51 min
Apr 20, 11:08 PM CDTSevere Thunderstorm WarningJANLauderdale52 min
Apr 21, 12:36 AM CDTSevere Thunderstorm WarningJANForrest, Lamar54 min
Apr 21, 1:32 AM CDTSevere Thunderstorm WarningJANForrest28 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1995Severe 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.