Alert archive / Louisiana / Tornado Warnings in 2016

Tornado Warning 46, NWS New Orleans, LA

March 18, 2016Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Mar 18, 2016, 10:50 PM CDT for Saint Bernard Parish, Louisiana. It was in force for 25 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
Mar 18, 2016, 10:50 PM CDT (03:50 UTC)
Expired
Mar 18, 2016, 11:15 PM CDT
In force
25 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Saint Bernard Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.8 hours before the alert went out and 48 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 2016-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 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 2016-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 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
52 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
1015 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

532 
WFUS54 KLIX 190350
TORLIX
LAC087-190415-
/O.NEW.KLIX.TO.W.0046.160319T0350Z-160319T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1050 PM CDT FRI MAR 18 2016

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL ST. BERNARD PARISH IN SOUTHEASTERN LOUISIANA...

* UNTIL 1115 PM CDT

* AT 1049 PM CDT...SEVERE THUNDERSTORMS CAPABLE OF PRODUCING BOTH
  TORNADOES AND EXTENSIVE STRAIGHT LINE WIND DAMAGE WERE LOCATED 7
  MILES EAST OF VIOLET...OR 12 MILES EAST OF CHALMETTE...MOVING
  SOUTHEAST AT 40 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 IMPACT SHELL BEACH AND
  YSCLOSKEY BEFORE 1115 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED
FOR THE SAME AREA.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

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 2976 8958 2975 8958 2975 8960 2973 8958
      2989 8985 2994 8980 2994 8977 2993 8974
      2991 8974 2987 8970 2986 8964 2988 8960
      2983 8946 2974 8953 2974 8956 2971 8956
TIME...MOT...LOC 0349Z 299DEG 33KT 2990 8977 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

24/RR
1 follow-up statement
009 
WWUS54 KLIX 190416
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1116 PM CDT FRI MAR 18 2016

LAC087-190426-
/O.EXP.KLIX.TO.W.0046.000000T0000Z-160319T0415Z/
ST. BERNARD LA-
1116 PM CDT FRI MAR 18 2016

...THE TORNADO WARNING FOR CENTRAL ST. BERNARD PARISH HAS EXPIRED...
                
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 ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 2976 8958 2975 8958 2975 8960 2973 8958
      2989 8985 2994 8980 2994 8977 2993 8974
      2991 8974 2987 8970 2986 8964 2988 8960
      2983 8946 2974 8953 2974 8956 2971 8956
TIME...MOT...LOC 0415Z 299DEG 33KT 2990 8977 

$$

24/RR

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 7:42 PM CDTSevere Thunderstorm WarningLIXIberville33 min
Mar 18, 8:07 PM CDTSpecial Weather StatementLIXSaint Charles23 min
Mar 18, 8:12 PM CDTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville, Saint James33 min
Mar 18, 8:45 PM CDTSpecial Weather StatementLIXAscension, Assumption, Saint James, Saint John the Baptist60 min
Mar 18, 8:47 PM CDTSpecial Weather StatementLIXOrleans, Saint Charles, Saint John the Baptist58 min
Mar 18, 9:32 PM CDTSpecial Weather StatementLIXJefferson, Lafourche58 min
Mar 18, 9:45 PM CDTSpecial Marine WarningLIX90 min
Mar 18, 9:50 PM CDTSpecial Weather StatementLIXLafourche, Orleans, Saint Charles, Saint Tammany55 min
Mar 18, 9:52 PM CDTSpecial Marine WarningLIX23 min
Mar 18, 10:27 PM CDTSpecial Weather StatementLIXLafourche, Orleans, Terrebonne33 min
Mar 18, 10:30 PM CDTSpecial Weather StatementLIXJefferson30 min
Mar 18, 10:32 PM CDTSpecial Marine WarningLIX88 min
Mar 18, 10:40 PM CDTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard35 min
Mar 18, 11:09 PM CDTSpecial Marine WarningLIX111 min
Mar 18, 11:13 PM CDTSpecial Weather StatementLIXPlaquemines92 min
Mar 18, 11:22 PM CDTSpecial Marine WarningLIX83 min
Mar 18, 11:35 PM CDTSpecial Weather StatementLIXJefferson40 min
Mar 18, 11:38 PM CDTSpecial Marine WarningLIX22 min
Mar 18, 11:42 PM CDTAreal Flood AdvisoryLIXAssumption, Lafourche, Saint Charles, Terrebonne2 hr
Mar 19, 12:46 AM CDTSpecial Weather StatementLIXPlaquemines29 min
Mar 19, 12:47 AM CDTSpecial Marine WarningLIX28 min
Mar 19, 12:50 AM CDTSpecial Marine WarningLIX25 min
Mar 19, 1:11 AM CDTSpecial Marine WarningLIX64 min
Mar 19, 1:15 AM CDTSpecial Marine WarningLIX60 min
Mar 19, 2:14 AM CDTSpecial Marine WarningLIX61 min
Mar 19, 3:00 AM CDTSpecial Weather StatementLIXLafourche30 min
Mar 19, 8:29 AM CDTSpecial Marine WarningLIX2 hr
Mar 19, 9:50 AM CDTSpecial Marine WarningLIX115 min
Mar 19, 10:54 AM CDTRiver Flood WarningLIXSaint Charles, Saint James, Saint John the Baptist4 days

Nearby

Tornado Warnings in Louisiana, 2016Every tornado warning in 2016Tornadoes in 2016

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.