Alert archive / Louisiana / Tornado Warnings in 2016

Tornado Warning 6, NWS New Orleans, LA

January 21, 2016Livingston Parish, Saint Helena Parish, Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jan 21, 2016, 5:25 PM CST for Livingston Parish, Saint Helena Parish, Tangipahoa Parish, Louisiana. It was in force for 35 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: Jan 21, 2016, 5:25 PM CST (23:25 UTC)
Expired: Jan 21, 2016, 6:00 PM CST
In force: 35 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Livingston Parish, LA, Saint Helena Parish, LA, Tangipahoa Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jan 21, 5:35 PM CST	HAIL 1.75	Amite, LA	GOLF BALL SIZE HAIL REPORTED IN AMITE. PICTURE RELAYED THROUGH BROADCAST MEDIA. EVENT TIME ESTIMATED BY RADAR.
Jan 21, 5:45 PM CST	HAIL 1.75	3 E Amite, LA	GOLF BALL SIZE HAIL REPORTED 3 MILES EAST OF AMITE. PICTURE RELAYED THROUGH BROADCAST MEDIA. EVENT TIME ESTIMATED BY RADAR.

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
Jan 21, 2:14 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.4 hours before the alert went out and 95 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: 208 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 600 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

846 
WFUS54 KLIX 212325
TORLIX
LAC063-091-105-220000-
/O.NEW.KLIX.TO.W.0006.160121T2325Z-160122T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
525 PM CST THU JAN 21 2016

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL TANGIPAHOA PARISH IN SOUTHEASTERN LOUISIANA...
  NORTH CENTRAL LIVINGSTON PARISH IN SOUTHEASTERN LOUISIANA...
  SOUTHEASTERN ST. HELENA PARISH IN SOUTHEASTERN LOUISIANA...

* UNTIL 600 PM CST
    
* AT 525 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER MONTPELIER...OR 10 MILES SOUTHWEST OF
  AMITE...MOVING NORTHEAST AT 20 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  INDEPENDENCE AROUND 540 PM CST.
  AMITE AND AMITE CITY AROUND 555 PM CST.
  ROSELAND AROUND 600 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3060 9064 3063 9069 3085 9053 3067 9032
TIME...MOT...LOC 2325Z 223DEG 18KT 3064 9064 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

24/RR

1 follow-up statement

494 
WWUS54 KLIX 212341
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
541 PM CST THU JAN 21 2016

LAC063-091-212351-
/O.CAN.KLIX.TO.W.0006.000000T0000Z-160122T0000Z/
LIVINGSTON LA-ST. HELENA LA-
541 PM CST THU JAN 21 2016

...THE TORNADO WARNING FOR NORTH CENTRAL LIVINGSTON AND SOUTHEASTERN
ST. HELENA PARISHES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST FOR SOUTHEASTERN
LOUISIANA.

LAT...LON 3067 9032 3066 9051 3070 9057 3077 9057
      3083 9050
TIME...MOT...LOC 2341Z 234DEG 26KT 3072 9048 

$$

LAC105-220000-
/O.CON.KLIX.TO.W.0006.000000T0000Z-160122T0000Z/
TANGIPAHOA LA-
541 PM CST THU JAN 21 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR WEST
CENTRAL TANGIPAHOA PARISH...
    
AT 541 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER AMITE...MOVING NORTHEAST AT 30 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
WEST CENTRAL TANGIPAHOA PARISH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3067 9032 3066 9051 3070 9057 3077 9057
      3083 9050
TIME...MOT...LOC 2341Z 234DEG 26KT 3072 9048 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

24/RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 4:56 AM CST	Dense Fog Advisory	LIX	Saint Bernard, Saint John the Baptist	4 hr
Jan 21, 5:10 AM CST	Marine Dense Fog Advisory	LIX		4 hr
Jan 21, 9:47 AM CST	Gale Warning	LIX		47 hr
Jan 21, 11:36 AM CST	Marine Dense Fog Advisory	LIX		3 hr
Jan 21, 3:26 PM CST	Special Marine Warning	LIX		34 min
Jan 21, 3:28 PM CST	Special Marine Warning	LIX		2 hr
Jan 21, 4:06 PM CST	Special Marine Warning	LIX		24 min
Jan 21, 4:09 PM CST	Tornado Warning	LIX	Iberville, Pointe Coupee, West Baton Rouge	51 min
Jan 21, 4:18 PM CST	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	42 min
Jan 21, 4:22 PM CST	Tornado Warning	LIX	Pointe Coupee, West Feliciana	38 min
Jan 21, 4:38 PM CST	Tornado Warning	LIX	Plaquemines	37 min
Jan 21, 4:47 PM CST	Tornado Warning	LIX	East Baton Rouge, East Feliciana	43 min
Jan 21, 4:54 PM CST	Severe Thunderstorm Warning	LIX	East Feliciana, West Feliciana	51 min
Jan 21, 5:17 PM CST	Severe Thunderstorm Warning	LIX	Iberville, Pointe Coupee, West Baton Rouge	28 min
Jan 21, 5:19 PM CST	Special Marine Warning	LIX		56 min
Jan 21, 5:29 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Livingston, West Baton Rouge	46 min
Jan 21, 5:33 PM CST	Special Marine Warning	LIX		27 min
Jan 21, 5:43 PM CST	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	62 min
Jan 21, 5:44 PM CST	Special Marine Warning	LIX		31 min
Jan 21, 5:52 PM CST	Tornado Warning	LIX	Tangipahoa, Washington	23 min
Jan 21, 5:54 PM CST	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena	51 min
Jan 21, 5:56 PM CST	Tornado Warning	LIX	Tangipahoa	34 min

Nearby

Tornado Warnings in Louisiana, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.