Alert archive / Louisiana / Tornado Warnings in 2024

Tornado Warning 21, NWS New Orleans, LA

May 16, 2024Saint Charles Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at May 16, 2024, 11:16 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, 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
May 16, 2024, 11:16 PM CDT (04:16 UTC)
Expired
May 16, 2024, 11:30 PM CDT
In force
14 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Saint Charles Parish, LA, Saint John the Baptist Parish, LA

The radar

The Hammond radar (KHDC), 55 km from the middle of the area, began a volume at 04:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 16, 7:59 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.3 hours before the alert went out and 68 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 2024-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 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 2024-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
61 J/kg
Mixed-layer CIN
-248 J/kg
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

734 
WFUS54 KLIX 170416
TORLIX
LAC089-095-170430-
/O.NEW.KLIX.TO.W.0021.240517T0416Z-240517T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1116 PM CDT Thu May 16 2024

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Central St. John The Baptist Parish in southeastern Louisiana...
  Northwestern St. Charles Parish in southeastern Louisiana...

* Until 1130 PM CDT.

* At 1116 PM CDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Montz, or near Hahnville, 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.

* These dangerous storms will be near...
  Laplace, Norco, and Montz around 1120 PM CDT.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 210 and 221.
 Interstate 310 near mile marker 1, and between mile markers 5 and 6.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2996 9043 2999 9051 3011 9043 3009 9033
      3007 9026 3005 9025 3005 9028 3001 9028
      2995 9036
TIME...MOT...LOC 0416Z 211DEG 27KT 3002 9044 

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

$$

Zeringue

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 8:13 PM CDTSpecial Weather StatementLIXPointe Coupee, West Feliciana47 min
May 16, 8:23 PM CDTRiver Flood WarningLIXTangipahoa14 hr
May 16, 8:24 PM CDTRiver Flood WarningLIXSaint Tammany14 hr
May 16, 8:24 PM CDTRiver Flood WarningLIXSaint Tammany14 hr
May 16, 8:56 PM CDTSpecial Weather StatementLIXPointe Coupee, West Feliciana49 min
May 16, 9:07 PM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupee and 3 more50 min
May 16, 9:23 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Iberville, Pointe Coupee, West Baton Rouge, West Feliciana52 min
May 16, 9:57 PM CDTFlash Flood WarningLIXAscension, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupee and 3 more3 hr
May 16, 10:00 PM CDTAreal Flood AdvisoryLIXAscension, Assumption, Iberville, Lafourche, Livingston, Saint James4 hr
May 16, 10:00 PM CDTSevere Thunderstorm WarningLIXAscension, East Baton Rouge, East Feliciana, Livingston, Saint Helena45 min
May 16, 10:05 PM CDTSevere Thunderstorm Warning Destructive damage threatLIXAscension, Assumption, East Baton Rouge, Iberville, West Baton Rouge40 min
May 16, 10:07 PM CDTSevere Thunderstorm WarningLIXIberville, Pointe Coupee, West Baton Rouge, West Feliciana20 min
May 16, 10:33 PM CDTAreal Flood AdvisoryLIXLivingston, Saint Helena, Saint John the Baptist, Saint Tammany, Tangipahoa, Washington3 hr
May 16, 10:37 PM CDTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville, Lafourche, Livingston, Saint James and 1 more38 min
May 16, 10:39 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Helena, Saint Tammany, Tangipahoa, Washington51 min
May 16, 10:43 PM CDTSpecial Marine WarningLIX2 hr
May 16, 10:50 PM CDTTornado WarningLIXAscension, Saint James25 min
May 16, 10:54 PM CDTTornado Warning Tornado observedLIXSaint James, Saint John the Baptist21 min
May 16, 10:59 PM CDTAreal Flood AdvisoryLIXAscension, Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard and 3 more21 min
May 16, 11:05 PM CDTSevere Thunderstorm Warning Considerable damage threatLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 3 more55 min
May 16, 11:09 PM CDTFlash Flood WarningLIXLivingston, Saint Helena, Saint John the Baptist, Saint Tammany, Tangipahoa, Washington2 hr
May 16, 11:11 PM CDTSpecial Weather StatementLIXWashington64 min
May 16, 11:16 PM CDTAreal Flood AdvisoryLIXSaint Tammany, Washington2 hr
May 16, 11:20 PM CDTFlash Flood WarningLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 2 more3 hr
May 16, 11:24 PM CDTSevere Thunderstorm Warning Considerable damage threatLIXSaint Tammany, Tangipahoa66 min
May 16, 11:32 PM CDTSpecial Weather StatementLIXJefferson, Lafourche, Terrebonne73 min
May 16, 11:51 PM CDTSpecial Marine WarningLIX84 min
May 16, 11:57 PM CDTFlash Flood WarningLIXSaint Tammany, Washington2 hr
May 16, 11:59 PM CDTSevere Thunderstorm Warning Destructive damage threatLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard61 min
May 17, 12:05 AM CDTSevere Thunderstorm Warning Considerable damage threatLIXOrleans, Saint Tammany55 min
May 17, 12:12 AM CDTSpecial Marine WarningLIX2 hr
May 17, 12:25 AM CDTSpecial Marine WarningLIX95 min
May 17, 12:28 AM CDTSevere Thunderstorm WarningLIXAssumption, Lafourche, Saint James, Terrebonne47 min
May 17, 12:33 AM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Plaquemines59 min
May 17, 12:52 AM CDTSpecial Marine WarningLIX70 min
May 17, 12:59 AM CDTSpecial Marine WarningLIX91 min
May 17, 1:08 AM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Saint Charles, Saint John the Baptist18 min
May 17, 1:16 AM CDTSpecial Marine WarningLIX89 min
May 17, 1:32 AM CDTSpecial Weather StatementLIXEast Baton Rouge28 min
May 17, 1:39 AM CDTSpecial Weather StatementLIXIberville, West Baton Rouge36 min
May 17, 1:47 AM CDTSpecial Weather StatementLIXOrleans28 min
May 17, 2:00 AM CDTSpecial Marine WarningLIX60 min
May 17, 2:18 AM CDTSpecial Marine WarningLIX87 min
May 17, 2:20 AM CDTSpecial Weather StatementLIXEast Baton Rouge25 min
May 17, 2:30 AM CDTSpecial Marine WarningLIX90 min
May 17, 3:23 AM CDTSpecial Weather StatementLIXWashington52 min

Nearby

Tornado Warnings in Louisiana, 2024Every tornado warning in 2024Tornadoes in 2024

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; radar from the NEXRAD Level II archive.