Alert archive / Mississippi / Tornado Warnings in 1998

Tornado Warning 13, NWS New Orleans, LA

April 28, 1998Wilkinson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Apr 28, 1998, 1:00 AM CDT for Wilkinson County, Mississippi. It was in force for 30 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 28, 1998, 1:00 AM CDT (06:00 UTC)
Expired
Apr 28, 1998, 1:30 AM CDT
In force
30 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Wilkinson County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 12:00 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.0 hours before the alert went out and 174 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 1998-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1003 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 1998-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897Sfc1 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
1003 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 280600 RRA
TORNEW
MSC157-280630-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
100 AM CDT TUE APR 28 1998

THE NATIONAL WEATHER SERVICE HAS ISSUED A...

* TORNADO WARNING FOR
   - NORTHERN WILKINSON COUNTY IN SOUTHERN MISSISSIPPI

* UNTIL 130 AM CDT

* AT 1256 AM CDT... DOPPLER RADAR INDICATED A POSSIBLE TORNADO 6
  MILES NORTH OF WOODVILLE MOVING EAST AT 35 MPH.

* THE TORNADO WILL MOVE NEAR THE TOWN OF WILKINSON AROUND 105 AM.


IF YOU ARE IN THE PATH OF A TORNADO...GET UNDER A WORKBENCH OR PIECE
OF STURDY FURNITURE. SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A
CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...OR CUSHIONS TO
COVER YOUR BODY.  AVOID WIdNDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 12:18 AM CDTSevere Thunderstorm WarningLIXWilkinson47 min
Apr 28, 1:20 AM CDTSevere Thunderstorm WarningLIXAmite45 min
Apr 28, 2:03 AM CDTSevere Thunderstorm WarningLIXAmite47 min
Apr 28, 2:50 AM CDTSevere Thunderstorm WarningLIXPike60 min
Apr 28, 3:17 AM CDTSevere Thunderstorm WarningLIXWalthall58 min

Nearby

Tornado Warnings in Mississippi, 1998Every tornado warning in 1998Tornadoes in 1998

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.