Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 19, NWS New Orleans, LA

April 23, 2021East Baton Rouge Parish, Livingston Parish, West Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Apr 23, 2021, 10:47 PM CDT for East Baton Rouge Parish, Livingston Parish, West Baton Rouge Parish, Louisiana. It was in force for 28 min. 1 report 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
Apr 23, 2021, 10:47 PM CDT (03:47 UTC)
Expired
Apr 23, 2021, 11:15 PM CDT
In force
28 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties East Baton Rouge Parish, LA, Livingston Parish, LA, West Baton Rouge Parish, LA

What was reported inside it

TimeReportWhereRemark
Apr 23, 10:54 PM CDTTSTM WND GST 564 S Baker, LAREPORTED AT BATON ROUGE METROPOLITAN AIRPORT.

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.

IssuedProductOfficeLasted
Apr 23, 8:30 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.8 hours before the alert went out and 124 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
873 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

347 
WFUS54 KLIX 240347
TORLIX
LAC033-063-121-240415-
/O.NEW.KLIX.TO.W.0019.210424T0347Z-210424T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1047 PM CDT Fri Apr 23 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  East central West Baton Rouge Parish in southeastern Louisiana...
  Northwestern Livingston Parish in southeastern Louisiana...
  Central East Baton Rouge Parish in southeastern Louisiana...

* Until 1115 PM CDT.
    
* At 1047 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Baton Rouge, moving northeast at 50 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...
  Merrydale and Old Jefferson around 1050 PM CDT.
  Brownfields and Shenandoah around 1055 PM CDT.
  Denham Springs and Greenwell Spring around 1100 PM CDT.
  Watson around 1105 PM CDT.
  Walker around 1110 PM CDT.

Other locations impacted by this tornadic thunderstorm include Baton
Rouge Airport.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 153 and 165.
 Interstate 12 between mile markers 1 and 28.
 Interstate 110 in Louisiana between mile markers 1 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3072 9089 3069 9086 3065 9091 3065 9082
      3046 9064 3034 9116 3049 9127
TIME...MOT...LOC 0347Z 240DEG 42KT 3046 9114 

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

$$
1 follow-up statement
503 
WWUS54 KLIX 240403
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1103 PM CDT Fri Apr 23 2021

LAC121-240413-
/O.CAN.KLIX.TO.W.0019.000000T0000Z-210424T0415Z/
West Baton Rouge LA-
1103 PM CDT Fri Apr 23 2021

...THE TORNADO WARNING FOR EAST CENTRAL WEST BATON ROUGE PARISH 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 400 AM CDT for southeastern
Louisiana.

LAT...LON 3072 9089 3069 9086 3065 9091 3065 9082
      3046 9064 3034 9116 3040 9121 3042 9120
      3052 9120 3052 9122
TIME...MOT...LOC 0403Z 256DEG 43KT 3052 9093 

$$

LAC033-063-240415-
/O.CON.KLIX.TO.W.0019.000000T0000Z-210424T0415Z/
Livingston LA-East Baton Rouge LA-
1103 PM CDT Fri Apr 23 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
NORTHWESTERN LIVINGSTON AND CENTRAL EAST BATON ROUGE PARISHES...
    
At 1103 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Denham Springs, moving east at 50 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...
  Livingston around 1115 PM CDT.

Other locations impacted by this tornadic thunderstorm include Baton
Rouge Airport.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 155 and 165.
 Interstate 12 between mile markers 1 and 28.
 Interstate 110 in Louisiana between mile markers 1 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3072 9089 3069 9086 3065 9091 3065 9082
      3046 9064 3034 9116 3040 9121 3042 9120
      3052 9120 3052 9122
TIME...MOT...LOC 0403Z 256DEG 43KT 3052 9093 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 9:28 PM CDTSevere Thunderstorm WarningLIXTangipahoa, Washington47 min
Apr 23, 10:12 PM CDTSpecial Weather StatementLIXEast Baton Rouge, West Baton Rouge33 min
Apr 23, 10:34 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Livingston, West Baton Rouge26 min
Apr 23, 11:14 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Helena, Tangipahoa31 min
Apr 23, 11:46 PM CDTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa, Washington44 min
Apr 24, 12:28 AM CDTSevere Thunderstorm WarningLIXWashington47 min
Apr 24, 12:56 AM CDTSpecial Weather StatementLIXEast Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana64 min
Apr 24, 1:36 AM CDTSpecial Weather StatementLIXLivingston24 min
Apr 24, 1:43 AM CDTSpecial Weather StatementLIXWashington32 min
Apr 24, 1:50 AM CDTSevere Thunderstorm WarningLIXAscension, East Baton Rouge, Iberville, Livingston, Saint Helena, Tangipahoa25 min
Apr 24, 2:17 AM CDTSpecial Weather StatementLIXAscension, Livingston, Tangipahoa, Washington43 min
Apr 24, 3:00 AM CDTSpecial Weather StatementLIXAssumption, Saint James, Saint John the Baptist, Saint Tammany60 min
Apr 24, 3:02 AM CDTSpecial Marine WarningLIX58 min
Apr 24, 3:21 AM CDTSpecial Weather StatementLIXAscension, East Baton Rouge, Livingston, Saint John the Baptist, Tangipahoa39 min
Apr 24, 3:30 AM CDTSevere Thunderstorm WarningLIXAscension, Livingston, Saint James, Saint John the Baptist, Tangipahoa30 min
Apr 24, 3:55 AM CDTSpecial Marine WarningLIX65 min
Apr 24, 3:59 AM CDTSpecial Weather StatementLIXOrleans, Saint Charles61 min
Apr 24, 4:06 AM CDTSevere Thunderstorm WarningLIXSaint Tammany24 min
Apr 24, 5:36 AM CDTSpecial Weather StatementLIXSaint Tammany39 min
Apr 24, 9:44 AM CDTRiver Flood WarningLIXTangipahoa3 days
Apr 24, 9:46 AM CDTRiver Flood WarningLIXSaint Tammany48 hr
Apr 24, 11:12 AM CDTRiver Flood WarningLIXSaint Tammany21 days
Apr 24, 11:12 AM CDTRiver Flood WarningLIXWashington72 hr

Nearby

Tornado Warnings in Louisiana, 2021Every tornado warning in 2021Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.