Alert archive / Louisiana / Tornado Warnings in 1998
Tornado Warning 1, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Jan 7, 1998, 1:31 AM CST for Saint Tammany Parish, Louisiana. It was in force for 19 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 7, 1998, 1:31 AM CST (07:31 UTC)
- Expired
- Jan 7, 1998, 1:50 AM CST
- In force
- 19 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Saint Tammany Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 7, 1:45 AM CST | Tornado F0 | Slidell, LA | A tornado touched down briefly in the Ozone Woods subdivision snapping trees and downing power lines. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 7.5 hours before the alert went out and 30 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.
- Mixed-layer CAPE
- 4 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 407 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
922 WFUS1 KNEW 070732 RRA TORNEW LAC103-070750- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 131 AM CST WED JAN 7 1998 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 150 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN LOUISIANA ...ST TAMMANY PARISH AT 115 AM CST...DOPPLER RADAR IN SLIDELL INDICATED A POSSIBLE TORNADO NEAR THE NORTH SHORE OF LAKE PONTCHARTRAIN...APPROACHING LACOMBE. MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR. THIS STORM WILL MOVE ACROSS INTERSTATE 12 AROUND 145 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 WINDOWS.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 6, 8:32 PM CST | Flash Flood Warning | LIX | Ascension, East Baton Rouge, Livingston | 4 hr |
| Jan 6, 8:32 PM CST | Flash Flood Warning | LIX | Assumption, Saint James | 4 hr |
| Jan 6, 8:32 PM CST | Flash Flood Warning | LIX | Iberville, West Baton Rouge | 4 hr |
| Jan 6, 9:57 PM CST | Flash Flood Warning | LIX | East Feliciana, Pointe Coupee, West Feliciana | 4 hr |
| Jan 6, 9:57 PM CST | Flash Flood Warning | LIX | Saint Helena, Tangipahoa | 4 hr |
| Jan 6, 11:19 PM CST | Flash Flood Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 4 hr |
| Jan 6, 11:19 PM CST | Flash Flood Warning | LIX | Lafourche, Saint Charles, Saint John the Baptist, Terrebonne | 4 hr |
| Jan 7, 1:13 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 32 min |
| Jan 7, 1:42 AM CST | Flash Flood Warning | LIX | Saint Tammany | 3 hr |
| Jan 7, 5:09 AM CST | Flash Flood Warning | LIX | Saint Tammany | 116 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.