Alert archive / Louisiana / Tornado Warnings in 2012

Tornado Warning 102, NWS New Orleans, LA

December 25, 2012East Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Dec 25, 2012, 2:58 PM CST for East Baton Rouge Parish, Louisiana. It was in force for 32 min. 2 reports 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: Dec 25, 2012, 2:58 PM CST (20:58 UTC)
Expired: Dec 25, 2012, 3:30 PM CST
In force: 32 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County East Baton Rouge Parish, LA

What was reported inside it

Time	Report	Where	Remark
Dec 25, 3:05 PM CST	TSTM WND DMG	Zachary, LA	TREES REPORTED DOWN ALONG HIGHWAY 64 IN ZACHARY. NWS STORM SURVEY REPORTED WIND DAMAGE WAS DUE TO STRAIGHT LINE WINDS.
Dec 25, 3:05 PM CST	TORNADO	Zachary, LA	TORNADO REPORTED BY LAW ENFORCEMENT IN ZACHARY AREA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 9.0 hours before the alert went out and 143 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.

179 
WFUS54 KLIX 252058
TORLIX
LAC033-252130-
/O.NEW.KLIX.TO.W.0102.121225T2058Z-121225T2130Z/

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

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN EAST BATON ROUGE PARISH IN SOUTHEAST LOUISIANA...
  THIS INCLUDES THE CITIES OF...ZACHARY...BAKER...

* UNTIL 330 PM CST

* AT 254 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF
  BAKER...MOVING NORTHEAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  GREENWELL SPRING AND PRIDE

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 3053 9128 3054 9124 3056 9124 3058 9127
      3070 9126 3072 9094 3060 9097 3058 9099
      3056 9097 3053 9098 3051 9128
TIME...MOT...LOC 2058Z 246DEG 45KT 3059 9120

$$

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, 2:30 PM CST	Tornado Warning	LIX	East Feliciana, Saint Helena	45 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, 2:59 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

Nearby

Tornado Warnings in Louisiana, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.