Alert archive / Louisiana / Tornado Warnings in 2012
Tornado Warning 83, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Dec 10, 2012, 7:45 AM CST for Livingston Parish, Saint Helena Parish, Louisiana. It was in force for 30 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
- Dec 10, 2012, 7:45 AM CST (13:45 UTC)
- Expired
- Dec 10, 2012, 8:15 AM CST
- In force
- 30 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Livingston Parish, LA, Saint Helena 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 |
|---|---|---|---|
| Dec 10, 5:44 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 1.8 hours before the alert went out and 105 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
- 767 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.9
The text
As transmitted, in the capitals the NWS used until 2016.
417 WFUS54 KLIX 101345 TORLIX LAC063-091-101415- /O.NEW.KLIX.TO.W.0083.121210T1345Z-121210T1415Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 745 AM CST MON DEC 10 2012 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL LIVINGSTON PARISH IN SOUTHEAST LOUISIANA... SOUTHEASTERN ST. HELENA PARISH IN SOUTHEAST LOUISIANA... * UNTIL 815 AM CST * AT 743 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTHWEST OF MONTPELIER...OR 15 MILES SOUTH OF GREENSBURG...MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED PARISHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND PHOTOS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM CST MONDAY MORNING FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. && LAT...LON 3086 9057 3062 9057 3053 9077 3065 9081 TIME...MOT...LOC 1345Z 239DEG 29KT 3063 9071 $$ CAB
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 3:13 AM CST | Small Craft Advisory | LIX | 24 hr | |
| Dec 10, 6:31 AM CST | Tornado Warning | LIX | East Feliciana, Saint Helena | 29 min |
| Dec 10, 6:55 AM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Livingston, Saint Helena, West Baton Rouge | 35 min |
| Dec 10, 7:23 AM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston, Saint Helena, West Baton Rouge | 37 min |
| Dec 10, 7:24 AM CST | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 36 min |
| Dec 10, 7:33 AM CST | Tornado Warning | LIX | Washington | 27 min |
| Dec 10, 7:53 AM CST | Tornado Warning | LIX | Washington | 37 min |
| Dec 10, 7:56 AM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa | 34 min |
| Dec 10, 8:20 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Iberville, Saint James | 40 min |
| Dec 10, 8:23 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 52 min |
| Dec 10, 8:46 AM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston, Saint Helena, Saint Tammany, Tangipahoa | 29 min |
| Dec 10, 8:54 AM CST | Tornado Warning | LIX | Ascension, Livingston | 36 min |
| Dec 10, 8:58 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Saint James, Saint John the Baptist | 47 min |
| Dec 10, 9:00 AM CST | Special Marine Warning | LIX | 60 min | |
| Dec 10, 9:10 AM CST | Severe Thunderstorm Warning | LIX | Washington | 65 min |
| Dec 10, 9:19 AM CST | Tornado Warning | LIX | Washington | 26 min |
| Dec 10, 9:25 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 65 min |
| Dec 10, 9:43 AM CST | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Saint Charles, Saint James, Saint John the Baptist | 47 min |
| Dec 10, 9:55 AM CST | Special Marine Warning | LIX | 50 min | |
| Dec 10, 10:18 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 42 min |
| Dec 10, 10:42 AM CST | Special Marine Warning | LIX | 33 min |
Nearby
Tornado Warnings in Louisiana, 2012Every tornado warning in 2012Tornadoes in 2012
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.