Alert archive / Louisiana / Tornado Warnings in 2012

Tornado Warning 97, NWS New Orleans, LA

December 25, 2012East Feliciana Parish, Saint Helena Parish, Louisiana; Amite County, Mississippi

NWS New Orleans, LA issued this tornado warning at Dec 25, 2012, 2:30 PM CST for East Feliciana Parish, Saint Helena Parish, Louisiana; Amite County, Mississippi. It was in force for 45 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 25, 2012, 2:30 PM CST (20:30 UTC)
Expired: Dec 25, 2012, 3:15 PM CST
In force: 45 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

Counties East Feliciana Parish, LA, Saint Helena Parish, LA, Amite County, MS

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 25, 12:58 PM CST	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 141 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 790 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 10.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

764 
WFUS54 KLIX 252030
TORLIX
LAC037-091-MSC005-252115-
/O.NEW.KLIX.TO.W.0097.121225T2030Z-121225T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
230 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN EAST FELICIANA PARISH IN SOUTHEAST LOUISIANA...
  NORTHERN ST. HELENA PARISH IN SOUTHEAST LOUISIANA...
  AMITE COUNTY IN SOUTHERN MISSISSIPPI...
  THIS INCLUDES THE CITY OF LIBERTY...

* UNTIL 315 PM CST

* AT 229 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES WEST OF
  FELPS...OR 9 MILES NORTHWEST OF CLINTON...MOVING NORTHEAST AT 60
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  GLOSTER...EASLEYVILLE AND GILLSBERG

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 800 PM CST TUESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

&&

LAT...LON 3090 9057 3086 9107 3100 9107 3100 9106
      3127 9106 3135 9055
TIME...MOT...LOC 2031Z 238DEG 54KT 3100 9106

$$

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 24, 8:34 PM CST	Dense Fog Advisory	LIX	Saint Bernard, Saint John the Baptist	9 hr
Dec 24, 9:03 PM CST	Marine Dense Fog Advisory	LIX		9 hr
Dec 25, 4:27 AM CST	Gale Warning	LIX		26 hr
Dec 25, 4:27 AM CST	Small Craft Advisory	LIX		35 hr
Dec 25, 6:44 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Iberville, Pointe Coupee, West Baton Rouge	31 min
Dec 25, 10:28 AM CST	Wind Advisory	LIX	Assumption, East Baton Rouge, Iberville, Pointe Coupee, Saint Bernard, Saint James and 2 more	20 hr
Dec 25, 1:45 PM CST	Severe Thunderstorm Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	60 min
Dec 25, 1:52 PM CST	Tornado Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	53 min
Dec 25, 1:57 PM CST	Tornado Warning	LIX	Lafourche, Saint Charles, Saint James, Saint John the Baptist	33 min
Dec 25, 1:58 PM CST	Special Marine Warning	LIX		62 min
Dec 25, 2:07 PM CST	Tornado Warning	LIX	Saint Tammany, Tangipahoa, Washington	38 min
Dec 25, 2:17 PM CST	Tornado Warning	LIX	Jefferson, Lafourche, Saint Charles, Saint John the Baptist	43 min
Dec 25, 2:27 PM CST	Special Marine Warning	LIX		33 min
Dec 25, 2:38 PM CST	Tornado Warning	LIX	Pointe Coupee, West Feliciana	37 min
Dec 25, 2:41 PM CST	Tornado Warning	LIX	East Feliciana	34 min
Dec 25, 2:50 PM CST	Tornado Warning	LIX	Jefferson, Orleans, Saint Charles	25 min
Dec 25, 2:54 PM CST	Tornado Warning	LIX	Saint Tammany	36 min
Dec 25, 2:58 PM CST	Tornado Warning	LIX	East Baton Rouge	32 min
Dec 25, 2:59 PM CST	Tornado Warning	LIX	Saint Tammany	31 min
Dec 25, 3:02 PM CST	Tornado Warning	LIX	Jefferson, Orleans, Saint Charles	28 min
Dec 25, 3:05 PM CST	Special Marine Warning	LIX		40 min
Dec 25, 3:13 PM CST	Tornado Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	47 min
Dec 25, 3:28 PM CST	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	62 min
Dec 25, 3:46 PM CST	Tornado Warning	LIX	Saint Helena, Tangipahoa	44 min
Dec 25, 3:49 PM CST	Special Marine Warning	LIX		26 min
Dec 25, 3:54 PM CST	Severe Thunderstorm Warning	LIX	Washington	66 min
Dec 25, 3:58 PM CST	Tornado Warning	LIX	Jefferson, Lafourche, Plaquemines, Saint Bernard	16 min
Dec 25, 4:01 PM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	44 min
Dec 25, 4:11 PM CST	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint Helena, Saint Tammany, Tangipahoa, Washington	64 min
Dec 25, 4:15 PM CST	Special Marine Warning	LIX		45 min
Dec 25, 4:39 PM CST	Special Marine Warning	LIX		96 min
Dec 25, 4:47 PM CST	Severe Thunderstorm Warning	LIX	Saint John the Baptist, Saint Tammany, Tangipahoa, Washington	58 min
Dec 25, 5:09 PM CST	Severe Thunderstorm Warning	LIX	Assumption, Lafourche, Saint John the Baptist, Terrebonne	47 min
Dec 25, 5:27 PM CST	Special Marine Warning	LIX		63 min
Dec 25, 1:48 PM CST	Severe Thunderstorm Warning	LIX	Amite	27 min
Dec 25, 1:59 PM CST	Tornado Warning	LIX	Wilkinson	46 min
Dec 25, 3:29 PM CST	Tornado Warning	LIX	Pearl River	22 min
Dec 25, 3:45 PM CST	Tornado Warning	LIX	Hancock, Harrison, Pearl River	30 min
Dec 25, 3:47 PM CST	Tornado Warning	LIX	Walthall	28 min

Nearby

Tornado Warnings in Louisiana, 2012 Tornado Warnings in Mississippi, 2012 Every tornado warning in 2012 Tornadoes 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.