Alert archive / Louisiana / Tornado Warnings in 1998
Tornado Warning 5, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 6, 1998, 2:16 PM CST for Jefferson Parish, Orleans Parish, Saint Bernard 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
- Mar 6, 1998, 2:16 PM CST (20:16 UTC)
- Expired
- Mar 6, 1998, 2:50 PM CST
- In force
- 34 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Jefferson Parish, LA, Orleans Parish, LA, Saint Bernard 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, 8.3 hours before the alert went out and 48 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.
242 WFUS1 KNEW 062012 RRA TORNEW LAC051-071-087-062050- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 216 PM CST FRI MAR 6 1998 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 250 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEASTERN LOUISIANA ...NORTHERN JEFFERSON PARISH ...SOUTHERN ORLEANS PARISH ...ST BERNARD PARISH AT 214 PM CST...RADAR INDICATED A DANGEROUS THUNDERSTORM POSSIBLY CONTAINING A TORNADO SOUTH OF MARRERO. THIS STORM WAS MOVING TO THE NORTHEAST AT 25 MPH. COMMUNITIES IN THE PATH OF THIS STORM INCLUDE HARVEY...GRETNA...TERRYTOWN...ALGIERS...ARABI AND CHALMETTE. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 6, 11:00 AM CST, 3 hours 16 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-070100- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CST FRI MAR 6 1998 THUNDERSTORM ACTIVITY WILL BECOME QUITE ACTIVE OVER NEXT FEW DAYS. THUNDERSTORMS ARE ALREADY FORMING IN THE COASTAL WATERS. THIS ACTIVITY WILL CONTINUE TO MOVE INLAND THROUGH THE AFTERNOON HOURS. SOME OF THESE STORMS COULD APPROACH SEVERE LIMITS. STRONG SOUTHERLY WINDS WILL KEEP OUR ATMOSPHERE VERY MOIST THUS BRIEF HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS. THE BIG THREAT WILL COME SATURDAY WHEN THE POSSIBILITY OF SEVERE WEATHER INVADES SOUTHEAST LOUISIANA. THE HIGH POTENTIAL FOR VERY HEAVY RAIN DOES EXIST FOR SATURDAY. RESIDENTS OF SOUTHEAST LOUISIANA ARE URGED TO KEEP TUNED TO THE LATEST WEATHER CONDITIONS BOTH TODAY AND SATURDAY. FOR INFORMATION REGARDING THIS DEVELOPING WEATHER SITUATION...KEEP TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE TELEVISION STATIONS...LOCAL RADIO STATIONS...OR SURF TO OUR WEBSITE AT: WWW.SRH.NOAA.GOV/FTPROOT/LIX 12
Special weather statement, Mar 6, 11:00 AM CST, 3 hours 16 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-070100- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CST FRI MAR 6 1998 THUNDERSTORM ACTIVITY WILL BECOME QUITE ACTIVE OVER NEXT FEW DAYS. THUNDERSTORMS ARE ALREADY FORMING IN THE COASTAL WATERS. THIS ACTIVITY WILL CONTINUE TO MOVE INLAND THROUGH THE AFTERNOON HOURS. SOME OF THESE STORMS COULD APPROACH SEVERE LIMITS. STRONG SOUTHERLY WINDS WILL KEEP OUR ATMOSPHERE VERY MOIST THUS BRIEF HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS. THE BIG THREAT WILL COME SATURDAY WHEN THE POSSIBILITY OF SEVERE WEATHER INVADES SOUTHEAST LOUISIANA. THE HIGH POTENTIAL FOR VERY HEAVY RAIN DOES EXIST FOR SATURDAY. RESIDENTS OF SOUTHEAST LOUISIANA ARE URGED TO KEEP TUNED TO THE LATEST WEATHER CONDITIONS BOTH TODAY AND SATURDAY. FOR INFORMATION REGARDING THIS DEVELOPING WEATHER SITUATION...KEEP TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE TELEVISION STATIONS...LOCAL RADIO STATIONS...OR SURF TO OUR WEBSITE AT: WWW.SRH.NOAA.GOV/FTPROOT/LIX 12
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, 1:59 PM CST | Tornado Warning | LIX | Jefferson | 16 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.