Alert archive / Mississippi / Tornado Warnings in 1998

Tornado Warning 9, NWS New Orleans, LA

March 7, 1998Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 7, 1998, 6:09 AM CST for Harrison County, Mississippi. It was in force for 31 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
Mar 7, 1998, 6:09 AM CST (12:09 UTC)
Expired
Mar 7, 1998, 6:40 AM CST
In force
31 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Harrison County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.2 hours before the alert went out and 62 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 12:00Z on 1998-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 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 12:00Z on 1998-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
480 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

043 
WFUS1 KNEW 071206 RRA
TORNEW
GMZ555-MSC047-071240-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
609 AM CST SAT MAR 7 1998

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 640 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHERN MISSISSIPPI

   ...SOUTHERN HARRISON COUNTY INCLUDING ADJACENT COASTAL WATERS

AT 606 AM CST...RADAR INDICATED A SEVERE THUNDERSTORM POSSIBLY
PRODUCING A TORNADO MOVING OUT OF HANCOCK COUNTY IN THE VIDALIA
AREA. THIS STORM EXTENDS SOUTHWARD TO NEAR I-10 NEAR DIAMONDHEAD.

AT 555 AM CST...HANCOCK SHERIFFS OFFICE RELAYED NUMEROUS REPORTS OF
QUARTER SIZED HAIL AND A POSSIBLE TORNADO IN THE ROCKY HILL AREA.

THIS IS A PARTICULARLY DANGEROUS STORM. TAKE COVER IMMEDIATELY.

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 WINDOWS.

&

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 7, 5:07 AM CSTTornado WarningLIXPearl River33 min
Mar 7, 5:32 AM CSTSevere Thunderstorm WarningLIXHancock33 min
Mar 7, 11:43 AM CSTFlash Flood WarningLIXJackson3 hr
Mar 7, 12:07 PM CSTFlash Flood WarningLIXHancock, Harrison2 hr
Mar 7, 4:20 PM CSTSevere Thunderstorm WarningLIXWilkinson30 min
Mar 7, 4:41 PM CSTFlash Flood WarningLIXHancock, Harrison4 hr
Mar 7, 4:41 PM CSTFlash Flood WarningLIXJackson4 hr

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.