Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 30, NWS New Orleans, LA

June 6, 20214 parishes in Louisiana

NWS New Orleans, LA issued this tornado warning at Jun 6, 2021, 9:07 AM CDT for 4 parishes in Louisiana. It was in force for 14 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
Jun 6, 2021, 9:07 AM CDT (14:07 UTC)
Expired
Jun 6, 2021, 9:21 AM CDT
In force
14 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Ascension Parish, LA, Livingston Parish, LA, Saint James Parish, LA, Tangipahoa Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.1 hours before the alert went out and 110 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 12:00Z on 2021-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1791 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2021-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.19395878Sfc1 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
1791 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.4
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

370 
WFUS54 KLIX 061407
TORLIX
LAC005-063-093-105-061445-
/O.NEW.KLIX.TO.W.0030.210606T1407Z-210606T1445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
907 AM CDT Sun Jun 6 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Central Ascension Parish in southeastern Louisiana...
  North central St. James Parish in southeastern Louisiana...
  Central Livingston Parish in southeastern Louisiana...
  Southwestern Tangipahoa Parish in southeastern Louisiana...

* Until 945 AM CDT.
    
* At 906 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Gonzales, 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...
  French Settlement, Port Vincent and Whitehall around 935 AM CDT.

Other locations impacted by this tornadic thunderstorm include
Killian.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 174 and 187.
 Interstate 12 between mile markers 18 and 36.

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 3035 9092 3034 9090 3036 9091 3062 9073
      3045 9048 3010 9086 3021 9102
TIME...MOT...LOC 1406Z 217DEG 18KT 3022 9089 

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

$$

ABS
1 follow-up statement
373 
WWUS54 KLIX 061421
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
921 AM CDT Sun Jun 6 2021

LAC005-063-093-105-061430-
/O.CAN.KLIX.TO.W.0030.000000T0000Z-210606T1445Z/
Ascension LA-St. James LA-Livingston LA-Tangipahoa LA-
921 AM CDT Sun Jun 6 2021

...THE TORNADO WARNING FOR CENTRAL ASCENSION...NORTH CENTRAL ST.
JAMES...CENTRAL LIVINGSTON AND SOUTHWESTERN TANGIPAHOA PARISHES IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
New Orleans.

LAT...LON 3035 9092 3034 9090 3036 9091 3062 9073
      3045 9048 3010 9086 3021 9102
TIME...MOT...LOC 1418Z 217DEG 18KT 3027 9085 

$$

ABS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 8:25 AM CDTSpecial Marine WarningLIX95 min
Jun 6, 8:27 AM CDTSpecial Marine WarningLIX34 min
Jun 6, 9:23 AM CDTTornado Warning Tornado observedLIXPlaquemines23 min
Jun 6, 9:57 AM CDTSpecial Weather StatementLIXPlaquemines33 min
Jun 6, 10:01 AM CDTTornado WarningLIXPlaquemines32 min
Jun 6, 10:14 AM CDTSpecial Marine WarningLIX91 min
Jun 6, 10:26 AM CDTSpecial Marine WarningLIX64 min
Jun 6, 10:38 AM CDTSpecial Weather StatementLIXPlaquemines52 min
Jun 6, 10:46 AM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, Iberville, West Baton Rouge4 hr
Jun 6, 11:28 AM CDTSpecial Marine WarningLIX32 min
Jun 6, 11:32 AM CDTSpecial Weather StatementLIXSaint Bernard43 min
Jun 6, 11:44 AM CDTSpecial Marine WarningLIX61 min
Jun 6, 11:51 AM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, Iberville, Livingston, Tangipahoa3 hr
Jun 6, 11:58 AM CDTFlash Flood WarningLIXTangipahoa, Washington3 hr
Jun 6, 12:22 PM CDTSpecial Marine WarningLIX23 min
Jun 6, 12:46 PM CDTSpecial Weather StatementLIXLafourche29 min
Jun 6, 12:53 PM CDTSpecial Weather StatementLIXTangipahoa52 min
Jun 6, 12:57 PM CDTSpecial Marine WarningLIX63 min
Jun 6, 1:52 PM CDTSpecial Marine WarningLIX23 min
Jun 6, 1:59 PM CDTSpecial Marine WarningLIX61 min
Jun 6, 2:15 PM CDTSpecial Marine WarningLIX45 min
Jun 6, 3:01 PM CDTSpecial Marine WarningLIX59 min
Jun 6, 3:07 PM CDTSpecial Marine WarningLIX53 min
Jun 6, 3:22 PM CDTSpecial Marine WarningLIX38 min
Jun 6, 3:41 PM CDTSpecial Marine WarningLIX19 min
Jun 6, 3:59 PM CDTSpecial Marine WarningLIX61 min
Jun 6, 4:39 PM CDTSpecial Marine WarningLIX31 min
Jun 6, 4:52 PM CDTSpecial Marine WarningLIX83 min
Jun 6, 5:36 PM CDTSpecial Marine WarningLIX39 min

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; the sounding from the Mesonet's radiosonde archive.