Alert archive / Louisiana / Tornado Warnings in 1998
Tornado Warning 4, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 6, 1998, 1:59 PM CST for Jefferson Parish, Louisiana. It was in force for 16 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 6, 1998, 1:59 PM CST (19:59 UTC)
- Expired
- Mar 6, 1998, 2:15 PM CST
- In force
- 16 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Jefferson Parish, LA
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 6, 1:20 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 hours before the alert went out and 74 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
- 451 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 501 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
092 WFUS1 KNEW 061956 RRA TORNEW LAC051-062015- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 159 PM CST FRI MAR 6 1998 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 215 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN LOUISIANA ...CENTRAL JEFFERSON PARISH AT 155 PM RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHWEST OF BARATARIA. RADAR INDICATED THAT THIS STORM POSSIBLY WAS PRODUCING A TORNADO. THE STORM WAS MOVING TO THE EAST AT 25 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 12:15 PM CST | Severe Thunderstorm Warning | LIX | Plaquemines | 65 min |
| Mar 6, 12:40 PM CST | Severe Thunderstorm Warning | LIX | Terrebonne | 60 min |
| Mar 6, 12:56 PM CST | Severe Thunderstorm Warning | LIX | Assumption | 64 min |
| Mar 6, 1:12 PM CST | Severe Thunderstorm Warning | LIX | Saint Charles | 33 min |
| Mar 6, 1:23 PM CST | Severe Thunderstorm Warning | LIX | Jefferson | 32 min |
| Mar 6, 1:46 PM CST | Severe Thunderstorm Warning | LIX | Lafourche | 64 min |
| Mar 6, 2:16 PM CST | Tornado Warning | LIX | Jefferson, Orleans, Saint Bernard | 34 min |
| Mar 6, 2:21 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 64 min |
| Mar 6, 2:30 PM CST | Severe Thunderstorm Warning | LIX | Plaquemines | 60 min |
| Mar 6, 3:46 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 34 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.