Alert archive / Louisiana / Tornado Warnings in 2014

Tornado Warning 13, NWS New Orleans, LA

May 28, 2014Ascension Parish, Saint James Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at May 28, 2014, 8:50 AM CDT for Ascension Parish, Saint James 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
May 28, 2014, 8:50 AM CDT (13:50 UTC)
Expired
May 28, 2014, 9:15 AM CDT
In force
25 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Ascension Parish, LA, Saint James Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.8 hours before the alert went out and 108 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 2014-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2001 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2014-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.193958Sfc1 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
2001 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

633 
WFUS54 KLIX 281350
TORLIX
LAC005-093-281415-
/O.NEW.KLIX.TO.W.0013.140528T1350Z-140528T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
850 AM CDT WED MAY 28 2014

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ASCENSION PARISH IN SOUTHEAST LOUISIANA...
  ST. JAMES PARISH IN SOUTHEAST LOUISIANA...

* UNTIL 915 AM CDT

* AT 848 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  SOUTHWEST OF CONVENT...OR 7 MILES NORTHEAST OF NAPOLEONVILLE...
  MOVING NORTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  CONVENT BY 905 AM CDT...
  7 MILES SOUTH OF SORRENTO BY 915 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE
INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND
PHOTOS.

&&

LAT...LON 3008 9100 3033 9084 3028 9082 3028 9079
      3026 9079 3023 9074 3018 9072 3017 9069
      3023 9065 3022 9063 3020 9063 3014 9065
      2990 9086 2991 9088 2993 9089 2994 9093
      2998 9093 2998 9096 3006 9097
TIME...MOT...LOC 1350Z 213DEG 16KT 2999 9092

$$
1 follow-up statement
052 
WWUS54 KLIX 281408
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
908 AM CDT WED MAY 28 2014

LAC005-093-281417-
/O.EXP.KLIX.TO.W.0013.000000T0000Z-140528T1415Z/
ST. JAMES LA-ASCENSION LA-
908 AM CDT WED MAY 28 2014

...THE TORNADO WARNING FOR ASCENSION AND ST. JAMES PARISHES WILL
EXPIRE AT 915 AM CDT...

THE STORM THAT PROMPTED THE TORNADO WARNING HAS WEAKENED. 
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE. 

LAT...LON 3008 9100 3033 9084 3028 9082 3028 9079
      3026 9079 3023 9074 3018 9072 3017 9069
      3023 9065 3022 9063 3020 9063 3014 9065
      2990 9086 2991 9088 2993 9089 2994 9093
      2998 9093 2998 9096 3006 9097
TIME...MOT...LOC 1407Z 213DEG 16KT 3005 9087

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 2:29 AM CDTAreal Flood AdvisoryLIXAssumption, Lafourche, Saint James2 hr
May 28, 2:44 AM CDTAreal Flood AdvisoryLIXIberville, West Baton Rouge2 hr
May 28, 4:01 AM CDTFlash Flood WatchLIXAssumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more62 hr
May 28, 4:13 AM CDTTornado WarningLIXAscension, Livingston, Saint James, Saint John the Baptist32 min
May 28, 4:28 AM CDTAreal Flood AdvisoryLIXAscension2 hr
May 28, 5:11 AM CDTAreal Flood AdvisoryLIXSaint John the Baptist2 hr
May 28, 5:29 AM CDTTornado WarningLIXSaint John the Baptist31 min
May 28, 5:55 AM CDTSpecial Marine WarningLIX35 min
May 28, 6:29 AM CDTFlash Flood WarningLIXSaint James, Saint John the Baptist5 hr
May 28, 7:57 AM CDTFlash Flood WarningLIXAssumption, Lafourche3 hr
May 28, 9:03 AM CDTFlash Flood WarningLIXAscension, Assumption, Saint James3 hr
May 28, 9:43 AM CDTFlash Flood WarningLIXSaint Tammany, Tangipahoa2 hr
May 28, 10:02 AM CDTTornado WarningLIXAscension28 min
May 28, 11:25 AM CDTTornado WarningLIXLivingston, Saint Helena, Tangipahoa20 min
May 28, 11:35 AM CDTFlash Flood WarningLIXAscension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James115 min
May 28, 11:43 AM CDTSpecial Marine WarningLIX32 min
May 28, 11:45 AM CDTTornado WarningLIXTangipahoa30 min
May 28, 12:19 PM CDTSpecial Marine WarningLIX56 min
May 28, 1:10 PM CDTSpecial Marine WarningLIX95 min
May 28, 5:14 PM CDTRiver Flood WarningLIXTangipahoa3 days
May 28, 5:35 PM CDTRiver Flood WarningLIXSaint Tammany7 days
May 28, 5:38 PM CDTRiver Flood WarningLIXSaint Tammany5 days

Nearby

Tornado Warnings in Louisiana, 2014Every tornado warning in 2014Tornadoes in 2014

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.