Alert archive / Louisiana / Tornado Warnings in 1998

Tornado Warning 36, NWS New Orleans, LA

October 6, 1998Assumption Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 6, 1998, 4:51 PM CDT for Assumption Parish, Louisiana. It was in force for 34 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
Oct 6, 1998, 4:51 PM CDT (21:51 UTC)
Expired
Oct 6, 1998, 5:25 PM CDT
In force
34 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Assumption Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 137 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 1998-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 150 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 12:00Z on 1998-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
150 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

881 
WFUS1 KNEW 062148 RRA
TORNEW
LAC007-062225-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
451 PM CDT TUE OCT 6 1998

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A...

* TORNADO WARNING FOR
   - ASSUMPTION PARISH IN SOUTHEASTERN LOUISIANA

* UNTIL 525 PM CDT

* AT 449 PM CDT... SHERIFFS DEPARTMENT REPORTED A SEVERE
  THUNDERSTORM WITH A POSSIBLE TORNADO JUST WEST OF NAPOLEONVILLE
  MOVING NORTH AT 15 T0 20 MPH.


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
Oct 6, 3:48 PM CDTTornado WarningLIXIberville, Pointe Coupee47 min

Nearby

Tornado Warnings in Louisiana, 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.