Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 67, NWS New Orleans, LA

October 27, 2021Livingston Parish, Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 27, 2021, 2:03 PM CDT for Livingston Parish, Tangipahoa Parish, Louisiana. It was in force for 42 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: Oct 27, 2021, 2:03 PM CDT (19:03 UTC)
Expired: Oct 27, 2021, 2:45 PM CDT
In force: 42 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Livingston Parish, LA, Tangipahoa 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
Oct 27, 1:53 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.1 hours before the alert went out and 91 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1792 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

617 
WFUS54 KLIX 271903
TORLIX
LAC063-105-271945-
/O.NEW.KLIX.TO.W.0067.211027T1903Z-211027T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
203 PM CDT Wed Oct 27 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Eastern Livingston Parish in southeastern Louisiana...
  West central Tangipahoa Parish in southeastern Louisiana...

* Until 245 PM CDT.
    
* At 203 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Whitehall, or 14 miles northeast of Gonzales,
  moving north 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 dangerous storm will be near...
  Springfield around 225 PM CDT.
  Albany around 235 PM CDT.
  Natalbany around 245 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Killian and Tickfaw.

This includes the following Interstates...
 Interstate 12 between mile markers 26 and 38.
 Interstate 55 in Louisiana between mile markers 30 and 38.

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 3023 9066 3026 9078 3060 9068 3060 9040
TIME...MOT...LOC 1903Z 201DEG 26KT 3030 9070 

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

$$

KLG

3 follow-up statements

261 
WWUS54 KLIX 271921
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
221 PM CDT Wed Oct 27 2021

LAC063-105-271945-
/O.CON.KLIX.TO.W.0067.000000T0000Z-211027T1945Z/
Livingston LA-Tangipahoa LA-
221 PM CDT Wed Oct 27 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR
NORTHEASTERN LIVINGSTON AND WEST CENTRAL TANGIPAHOA PARISHES...
    
At 221 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Springfield, or 12 miles southwest of Hammond,
moving north 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 dangerous storm will be near...
  Springfield around 230 PM CDT.
  Albany around 235 PM CDT.
  Natalbany around 245 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Tickfaw and Killian.

This includes the following Interstates...
 Interstate 12 between mile markers 28 and 38.
 Interstate 55 in Louisiana between mile markers 30 and 38.

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 3032 9061 3034 9071 3060 9066 3060 9040
TIME...MOT...LOC 1921Z 201DEG 26KT 3042 9065 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

KLG

396 
WWUS54 KLIX 271930
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
230 PM CDT Wed Oct 27 2021

LAC063-105-271945-
/O.CON.KLIX.TO.W.0067.000000T0000Z-211027T1945Z/
Livingston LA-Tangipahoa LA-
230 PM CDT Wed Oct 27 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR
NORTHEASTERN LIVINGSTON AND WEST CENTRAL TANGIPAHOA PARISHES...
    
At 230 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Albany, or 9 miles west of Hammond, moving north 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 dangerous storm will be near...
  Natalbany around 245 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Tickfaw.

This includes the following Interstates...
 Interstate 12 between mile markers 29 and 37.
 Interstate 55 in Louisiana between mile markers 31 and 38.

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 3040 9057 3041 9068 3060 9063 3060 9041
TIME...MOT...LOC 1930Z 201DEG 26KT 3049 9062 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

KLG

595 
WWUS54 KLIX 271941
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
241 PM CDT Wed Oct 27 2021

LAC063-105-271950-
/O.EXP.KLIX.TO.W.0067.000000T0000Z-211027T1945Z/
Livingston LA-Tangipahoa LA-
241 PM CDT Wed Oct 27 2021

...THE TORNADO WARNING FOR NORTHEASTERN LIVINGSTON AND WEST CENTRAL
TANGIPAHOA PARISHES WILL EXPIRE AT 245 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Louisiana.

LAT...LON 3040 9057 3041 9068 3060 9063 3060 9041
TIME...MOT...LOC 1940Z 201DEG 26KT 3055 9059 

$$

KLG

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 27, 1:47 PM CDT	Tornado Warning	LIX	East Baton Rouge, East Feliciana	43 min
Oct 27, 1:48 PM CDT	Tornado Warning	LIX	East Feliciana, West Feliciana	42 min
Oct 27, 1:51 PM CDT	Special Marine Warning	LIX		41 min
Oct 27, 2:16 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, Pointe Coupee, West Feliciana	59 min
Oct 27, 3:10 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, West Baton Rouge, West Feliciana	50 min
Oct 27, 3:17 PM CDT	Special Marine Warning	LIX		28 min
Oct 27, 3:19 PM CDT	Tornado Warning	LIX	East Feliciana, West Feliciana	26 min
Oct 27, 3:22 PM CDT	Special Marine Warning	LIX		53 min
Oct 27, 3:56 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, West Baton Rouge	49 min
Oct 27, 4:06 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 1 more	39 min
Oct 27, 4:46 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Lafourche, Livingston and 4 more	44 min
Oct 27, 4:54 PM CDT	Areal Flood Advisory	LIX	Livingston, Saint Tammany, Tangipahoa, Washington	3 hr
Oct 27, 4:59 PM CDT	Special Marine Warning	LIX		91 min
Oct 27, 5:19 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	26 min
Oct 27, 5:22 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, Lafourche, Livingston, Saint Charles, Saint James and 2 more	38 min
Oct 27, 5:26 PM CDT	Special Marine Warning	LIX		94 min
Oct 27, 5:28 PM CDT	Flash Flood Warning	LIX	Saint Tammany, Tangipahoa, Washington	3 hr
Oct 27, 5:56 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 2 more	49 min
Oct 27, 6:10 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	50 min
Oct 27, 6:19 PM CDT	Flash Flood Warning	LIX	Saint Tammany, Washington	2 hr
Oct 27, 6:23 PM CDT	Special Marine Warning	LIX		97 min
Oct 27, 6:28 PM CDT	Tornado Warning	LIX	Jefferson, Lafourche	32 min
Oct 27, 6:37 PM CDT	Special Marine Warning	LIX		83 min
Oct 27, 6:47 PM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Saint Bernard, Saint Charles	109 min
Oct 27, 6:49 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard	41 min
Oct 27, 6:53 PM CDT	Areal Flood Advisory	LIX	Saint Tammany	3 hr

Nearby

Tornado Warnings in Louisiana, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.