Alert archive / Louisiana / Tornado Warnings in 2002
Tornado Warning 25, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Sep 25, 2002, 4:36 AM CDT for Plaquemines Parish, Louisiana. It was in force for 20 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 25, 2002, 4:36 AM CDT (09:36 UTC)
- Expired
- Sep 26, 2002, 1:00 AM CDT
- In force
- 20 hr
- Issued by
- NWS New Orleans, LA
- Area
- Counties, with a storm outline in the text
County Plaquemines Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 26, 12:30 AM CDT | Tornado F1 | Golden Meadow, LA | A tornado touched down briefly causing damage to two autos and several storage buildings. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 25, 3:15 AM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 9.6 hours before the alert went out and 124 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
- 371 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
480 WFUS54 KLIX 250936 TORNEW LAC075-251000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 435 AM CDT WED SEP 25 2002 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * TORNADO WARNING FOR... PLAQUEMINES PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITY OF PORT SULPHUR * UNTIL 500 AM CDT * AT 430 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EMPIRE...OR ABOUT 7 MILES SOUTHEAST OF PORT SULPHUR...MOVING WEST AT 15 MPH. PORT SULPHUR IS IN THE PATH OF THIS TORNADO. SEEK SHELTER ON THE LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET OR BATHROOM. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 2934 8955 2952 8952 2959 8991 2937 8994
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 24, 8:38 PM CDT | Tornado Warning | LIX | Lafourche | 28 hr |
| Sep 25, 4:10 AM CDT | Special Marine Warning | LIX | 35 min | |
| Sep 25, 5:48 AM CDT | Special Marine Warning | LIX | 42 min | |
| Sep 25, 3:24 PM CDT | Flash Flood Warning | LIX | Jefferson, Orleans, Saint Bernard | 111 min |
| Sep 25, 5:07 PM CDT | Flash Flood Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles | 4 hr |
| Sep 25, 5:32 PM CDT | Special Marine Warning | LIX | 43 min |
Nearby
Tornado Warnings in Louisiana, 2002Every tornado warning in 2002Tornadoes in 2002
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.