Alert archive / Louisiana / Tornado Warnings in 2019

Tornado Warning 13, NWS New Orleans, LA

April 7, 2019Saint Charles Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Apr 7, 2019, 8:17 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, Louisiana. It was in force for 13 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 7, 2019, 8:17 PM CDT (01:17 UTC)
Expired: Apr 7, 2019, 8:30 PM CDT
In force: 13 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

What was reported inside it

Time	Report	Where	Remark
Apr 7, 8:17 PM CDT	TSTM WND DMG	Edgard, LA	AN EMERGENCY MANAGER REPORTED A TREE DOWN ON A HOME IN EDGARD IN ST. JOHN THE BAPTIST PARISH.

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
Apr 7, 7:46 PM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.3 hours before the alert went out and 71 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: 2475 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 454 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

As transmitted.

418 
WFUS54 KLIX 080117
TORLIX
LAC089-095-080130-
/O.NEW.KLIX.TO.W.0013.190408T0117Z-190408T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
817 PM CDT Sun Apr 7 2019

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 830 PM CDT.

* At 817 PM CDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Laplace, moving northeast at 35 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
  central St. John The Baptist and northwestern St. Charles Parishes.

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 3002 9058 3017 9054 3018 9047 3029 9040
      3028 9037 3030 9031 3026 9034 3022 9041
      3016 9043 3009 9041 3006 9038 3005 9034
      2996 9039
TIME...MOT...LOC 0117Z 202DEG 29KT 3005 9047 

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

$$

24/RR

1 follow-up statement

732 
WWUS54 KLIX 080127
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
827 PM CDT Sun Apr 7 2019

LAC089-095-080137-
/O.EXP.KLIX.TO.W.0013.000000T0000Z-190408T0130Z/
St. John The Baptist LA-St. Charles LA-
827 PM CDT Sun Apr 7 2019

...THE TORNADO WARNING FOR CENTRAL ST. JOHN THE BAPTIST AND
NORTHWESTERN ST. CHARLES PARISHES WILL EXPIRE AT 830 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
southeastern Louisiana.

LAT...LON 3002 9058 3017 9054 3018 9047 3029 9040
      3028 9037 3030 9031 3026 9034 3022 9041
      3016 9043 3009 9041 3006 9038 3005 9034
      2996 9039
TIME...MOT...LOC 0127Z 202DEG 29KT 3012 9044 

$$

24/RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 7:06 PM CDT	Areal Flood Warning	LIX	Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupee and 3 more	3 hr
Apr 7, 7:10 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	35 min
Apr 7, 7:19 PM CDT	Tornado Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	26 min
Apr 7, 7:26 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, East Feliciana, Livingston, Saint Helena	34 min
Apr 7, 7:29 PM CDT	Special Marine Warning	LIX		91 min
Apr 7, 7:29 PM CDT	Tornado Warning	LIX	Ascension, Assumption, Livingston, Saint James	16 min
Apr 7, 7:42 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Jefferson, Lafourche, Livingston, Saint Charles, Saint James and 3 more	33 min
Apr 7, 7:46 PM CDT	Special Marine Warning	LIX		89 min
Apr 7, 7:49 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, East Feliciana, Livingston, Saint Helena, Tangipahoa	56 min
Apr 7, 7:54 PM CDT	Special Weather Statement	LIX	Orleans, Plaquemines, Saint Tammany, Washington	66 min
Apr 7, 7:58 PM CDT	Tornado Warning	LIX	Livingston, Saint Helena, Tangipahoa	32 min
Apr 7, 8:05 PM CDT	Tornado Warning	LIX	Livingston, Tangipahoa	25 min
Apr 7, 8:18 PM CDT	Tornado Warning	LIX	Jefferson, Saint Charles	11 min
Apr 7, 8:21 PM CDT	Special Weather Statement	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Lafourche and 6 more	54 min
Apr 7, 8:41 PM CDT	Special Marine Warning	LIX		2 hr
Apr 7, 8:46 PM CDT	Special Weather Statement	LIX	Saint Tammany, Tangipahoa, Washington	59 min
Apr 7, 8:53 PM CDT	Special Marine Warning	LIX		22 min
Apr 7, 8:58 PM CDT	Special Weather Statement	LIX	Saint Tammany, Washington	62 min
Apr 7, 9:16 PM CDT	Tornado Warning	LIX	Saint Tammany	3 min
Apr 7, 11:49 PM CDT	Special Marine Warning	LIX		86 min
Apr 8, 12:43 AM CDT	Special Marine Warning	LIX		92 min
Apr 8, 1:28 AM CDT	Special Marine Warning	LIX		62 min
Apr 8, 2:06 AM CDT	Special Marine Warning	LIX		54 min
Apr 8, 2:18 AM CDT	Special Marine Warning	LIX		57 min
Apr 8, 2:22 AM CDT	Special Weather Statement	LIX	Plaquemines	53 min
Apr 8, 2:53 AM CDT	Special Marine Warning	LIX		67 min
Apr 8, 6:57 AM CDT	Small Craft Advisory	LIX		29 hr

Nearby

Tornado Warnings in Louisiana, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.