Alert archive / Louisiana / Tornado Warnings in 1999
Tornado Warning 16, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Jan 29, 1999, 4:51 PM CST for Saint Tammany 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
- Jan 29, 1999, 4:51 PM CST (22:51 UTC)
- Expired
- Jan 29, 1999, 5:25 PM CST
- In force
- 34 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Saint Tammany Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 10.9 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
- 664 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 292249 RRA TORNEW LAC103-292325- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 451 PM CST FRI JAN 29 1999 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A... * TORNADO WARNING FOR - NORTHERN ST TAMMANY PARISH IN SOUTHEASTERN LOUISIANA * UNTIL 525 PM CST * AT 449 PM CST... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO 8 MILES NORTH OF COVINGTON OR 4 MILES SOUTHEAST OF FOLSOM MOVING NORTHEAST AT 35 MPH. * THE TORNADO IS CURRENTLY EXPECTED TO REMAIN OVER RURAL AREAS AROUND FOLSOM. IF YOU ARE IN THESE AREAS...SEEK SHELTER IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS 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.
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, Jan 29, 11:00 AM CST, 5 hours 51 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-292330- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CST FRI JAN 29 1999 WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS ARE EXPECTED ACROSS SOUTHEAST LOUISIANA AND EXTREME SOUTH MISSISSIPPI THIS AFTERNOON AND TONIGHT. THE MAIN THREAT WILL BE HEAVY RAIN. HOWEVER...SEVERE THUNDERSTORMS ARE NOT EXPECTED THIS AFTERNOON OR TONIGHT. GULF MOISTURE WILL REMAIN ENTRENCHED AND THE ATMOSPHERE IS MODERATELY UNSTABLE OVER THE AREA. THE UPPER LEVEL LOW AND SURFACE LOW WILL REMAIN OVER TEXAS THROUGH TONIGHT. STRONG UPPER LEVEL WINDS...WHICH HELP PRODUCE AND PROLONG STRONG AND SEVERE THUNDERSTORMS...WILL REMAIN OVER TEXAS THROUGH TONIGHT. A SLIGHT CHANCE OF SEVERE WEATHER MAY OCCUR SATURDAY AS THESE WEATHER FEATURES MOVE CLOSER. ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT PERSONNEL...AND HAM RADIO OPERATORS WILL NOT BE REQUIRED THROUGH TONIGHT. HOWEVER... RAINFALL REPORTS CAN BE RELAYED TO THE NATIONAL WEATHER SERVICE. 18
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 2:05 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, West Baton Rouge | 45 min |
| Jan 29, 2:54 PM CST | Tornado Warning | LIX | East Baton Rouge, Livingston | 36 min |
| Jan 29, 5:16 PM CST | Tornado Warning | LIX | Washington | 64 min |
Nearby
Tornado Warnings in Louisiana, 1999Every tornado warning in 1999Tornadoes in 1999
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.