Alert archive / Louisiana / Tornado Warnings in 2003
Tornado Warning 48, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Nov 18, 2003, 9:41 AM CST for 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 outline as issued.
The facts
- Issued
- Nov 18, 2003, 9:41 AM CST (15:41 UTC)
- Expired
- Nov 18, 2003, 10:15 AM CST
- In force
- 34 min
- Issued by
- NWS New Orleans, LA
- Area
- Counties, with a storm outline in the text
Counties 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 |
|---|---|---|---|
| Nov 18, 6:55 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 3.7 hours before the alert went out and 36 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
- 309 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 620 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 273 m²/s²
- 0-3 km storm-relative helicity
- 352 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KLIX 181541 TORNEW LAC071-087-181615- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 940 AM CST TUE NOV 18 2003 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * TORNADO WARNING FOR... ORLEANS PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITIES OF...NEW ORLEANS...EAST NEW ORLEANS ST. BERNARD PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITY OF CHALMETTE * UNTIL 1015 AM CST * AT 935 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER NEW ORLEANS... MOVING EAST AT 30 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... CHALMETTE AT 950 AM CST EAST NEW ORLEANS AT 955 AM CST 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 3008 9016 2993 9014 2989 8966 3011 8967 $$
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 7:05 AM CST | Severe Thunderstorm Warning | LIX | Saint Helena | 40 min |
| Nov 18, 7:18 AM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, Iberville, Livingston | 42 min |
| Nov 18, 7:25 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Assumption | 35 min |
| Nov 18, 7:45 AM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa, Washington | 45 min |
| Nov 18, 7:55 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Iberville, Lafourche, Saint James, Terrebonne | 50 min |
| Nov 18, 8:07 AM CST | Special Marine Warning | LIX | 83 min | |
| Nov 18, 8:21 AM CST | Special Marine Warning | LIX | 99 min | |
| Nov 18, 8:29 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 46 min |
| Nov 18, 8:39 AM CST | Severe Thunderstorm Warning | LIX | Lafourche, Livingston, Saint Charles, Saint James, Saint John the Baptist, Terrebonne | 51 min |
| Nov 18, 9:08 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 1 more | 52 min |
| Nov 18, 9:10 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 65 min |
| Nov 18, 9:24 AM CST | Tornado Warning | LIX | Jefferson, Orleans, Saint Bernard | 21 min |
| Nov 18, 9:29 AM CST | Tornado Warning | LIX | Saint Tammany, Washington | 46 min |
| Nov 18, 9:32 AM CST | Tornado Warning | LIX | Saint Tammany | 43 min |
| Nov 18, 9:55 AM CST | Special Marine Warning | LIX | 2 hr | |
| Nov 18, 10:11 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 49 min |
| Nov 18, 10:23 AM CST | Special Marine Warning | LIX | 97 min | |
| Nov 18, 10:46 AM CST | Severe Thunderstorm Warning | LIX | Plaquemines | 44 min |
| Nov 18, 11:50 AM CST | Special Marine Warning | LIX | 115 min | |
| Nov 18, 12:00 PM CST | Special Marine Warning | LIX | 60 min |
Nearby
Tornado Warnings in Louisiana, 2003Every tornado warning in 2003Tornadoes in 2003
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.