Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS New Orleans, LA

April 8, 2002East Feliciana Parish, Louisiana; Amite County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 8, 2002, 5:42 AM CDT for East Feliciana Parish, Louisiana; Amite County, Mississippi. It was in force for 48 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
Apr 8, 2002, 5:42 AM CDT (10:42 UTC)
Expired
Apr 8, 2002, 6:30 AM CDT
In force
48 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties East Feliciana Parish, LA, Amite County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.7 hours before the alert went out and 144 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 2002-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 201 joules per kilogram.LCLEL10008507005003002001001 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 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 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
201 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLIX 081042
SVRNEW
LAC037-MSC005-081130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
538 AM CDT MON APR 8 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST FELICIANA PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...JACKSON...CLINTON
  AMITE COUNTY IN SOUTHERN MISSISSIPPI
  THIS INCLUDES THE CITY OF LIBERTY

* UNTIL 630 AM CDT

* AT 536 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS FROM NORTHWEST AMITE COUNTY TO      
  EXTREME WESTERN SECTIONS OF EAST FELICIANA PARISH...MOVING         
  EAST AT 30 MPH.

* LINE OF SEVERE THUNDERSTORMS WILL BE NEAR...
   NORWOOD...JACKSON AT 545 AM CDT
   SMITHDALE AT 600 AM CDT
   LIBERTY...FELPS...CLINTON AT 605 AM CDT
   GILLSBERG AT 625 AM CDT

LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER
IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 12:04 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Helena, Tangipahoa26 min
Apr 8, 12:35 PM CDTTornado WarningLIXLivingston, Tangipahoa55 min
Apr 8, 1:07 PM CDTTornado WarningLIXAscension, Saint James, Saint John the Baptist38 min
Apr 8, 1:13 PM CDTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa, Washington62 min
Apr 8, 1:19 PM CDTTornado WarningLIXSaint Tammany, Tangipahoa26 min
Apr 8, 1:37 PM CDTSpecial Marine WarningLIX113 min
Apr 8, 1:37 PM CDTSpecial Marine WarningLIX113 min
Apr 8, 1:45 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Saint Charles, Saint James, Saint John the Baptist, Terrebonne45 min
Apr 8, 1:47 PM CDTTornado WarningLIXWashington43 min
Apr 8, 1:55 PM CDTTornado WarningLIXLafourche95 min
Apr 8, 1:55 PM CDTTornado WarningLIXTerrebonne110 min
Apr 8, 2:19 PM CDTSevere Thunderstorm WarningLIXSaint Tammany56 min
Apr 8, 2:31 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 1 more89 min
Apr 8, 2:35 PM CDTSpecial Marine WarningLIX115 min
Apr 8, 3:07 PM CDTTornado WarningLIXLafourche23 min
Apr 8, 3:11 PM CDTTornado WarningLIXJefferson, Plaquemines49 min
Apr 8, 3:14 PM CDTSpecial Marine WarningLIX2 hr
Apr 8, 3:40 PM CDTTornado WarningLIXJefferson, Lafourche, Plaquemines2 hr
Apr 8, 4:53 PM CDTSevere Thunderstorm WarningLIXJefferson22 min
Apr 8, 5:38 PM CDTTornado WarningLIXPlaquemines90 days
Apr 8, 5:42 PM CDTSpecial Marine WarningLIX2 hr
Apr 8, 5:42 PM CDTSpecial Marine WarningLIX2 hr
Apr 8, 6:21 AM CDTSevere Thunderstorm WarningLIXPike39 min
Apr 8, 1:58 PM CDTSevere Thunderstorm WarningLIXPearl River, Walthall62 min
Apr 8, 3:23 PM CDTTornado WarningLIXHancock97 min
Apr 8, 4:34 PM CDTTornado WarningLIXHarrison86 min
Apr 8, 5:23 PM CDTTornado WarningLIXJackson37 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2002Severe Thunderstorm Warnings in Mississippi, 2002Every severe thunderstorm warning in 2002

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.