Alert archive / Louisiana / Tornado Warnings in 2014

Tornado Warning 9, NWS New Orleans, LA

April 7, 2014Tangipahoa Parish, Washington Parish, Louisiana; Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Apr 7, 2014, 12:42 AM CDT for Tangipahoa Parish, Washington Parish, Louisiana; Walthall County, Mississippi. It was in force for 48 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
Apr 7, 2014, 12:42 AM CDT (05:42 UTC)
Expired
Apr 7, 2014, 1:30 AM CDT
In force
48 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Tangipahoa Parish, LA, Washington Parish, LA, Walthall County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 6, 6:56 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.7 hours before the alert went out and 93 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 2014-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1102 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 2014-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 330 square meters per square second.1939587897117Sfc1 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
1102 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
330 m²/s²
0-3 km storm-relative helicity
422 m²/s²
Significant tornado parameter
2.7
Supercell composite
11.7

Open this sounding in Storm Lab

The text

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

869 
WFUS54 KLIX 070542
TORLIX
LAC105-117-MSC147-070630-
/O.NEW.KLIX.TO.W.0009.140407T0542Z-140407T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1242 AM CDT MON APR 7 2014

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  TANGIPAHOA PARISH IN SOUTHEAST LOUISIANA...
  WASHINGTON PARISH IN SOUTHEAST LOUISIANA...
  THIS INCLUDES THE CITY OF FRANKLINTON...
  WALTHALL COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 130 AM CDT

* AT 1238 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WILMER...OR
  10 MILES NORTHEAST OF AMITE...MOVING NORTHEAST AT 55 MPH.

* THE TORNADO WILL BE NEAR...
  7 MILES NORTHWEST OF FRANKLINTON BY 1250 AM CDT...
  DEXTER BY 105 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3117 9000 3114 9000 3113 8993 3108 8991
      3108 8986 3106 8983 3101 8982 3101 8976
      3099 8974 3074 9044 3082 9049 3119 9003
TIME...MOT...LOC 0542Z 235DEG 50KT 3086 9032

$$

CAB
3 follow-up statements
287 
WWUS54 KLIX 070550
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1250 AM CDT MON APR 7 2014

LAC105-070600-
/O.CAN.KLIX.TO.W.0009.000000T0000Z-140407T0630Z/
TANGIPAHOA LA-
1250 AM CDT MON APR 7 2014

...THE TORNADO WARNING FOR TANGIPAHOA PARISH IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

LAT...LON 3117 9000 3114 9000 3113 8993 3108 8991
      3108 8985 3092 9007 3080 9028 3081 9030
      3082 9029 3088 9031 3091 9035 3094 9034
      3119 9003
TIME...MOT...LOC 0550Z 230DEG 43KT 3091 9028

$$

LAC117-MSC147-070630-
/O.CON.KLIX.TO.W.0009.000000T0000Z-140407T0630Z/
WALTHALL MS-WASHINGTON LA-
1250 AM CDT MON APR 7 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR WALTHALL
COUNTY...AND WASHINGTON PARISH...

AT 1248 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED NEAR MOUNT HERMAN...OR 10
MILES WEST OF FRANKLINTON...MOVING NORTHEAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  DEXTER BY 115 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3117 9000 3114 9000 3113 8993 3108 8991
      3108 8985 3092 9007 3080 9028 3081 9030
      3082 9029 3088 9031 3091 9035 3094 9034
      3119 9003
TIME...MOT...LOC 0550Z 230DEG 43KT 3091 9028

$$

24/RR
303 
WWUS54 KLIX 070603
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
103 AM CDT MON APR 7 2014

LAC117-070613-
/O.CAN.KLIX.TO.W.0009.000000T0000Z-140407T0630Z/
WASHINGTON LA-
103 AM CDT MON APR 7 2014

...THE TORNADO WARNING FOR WASHINGTON PARISH IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

LAT...LON 3117 9000 3114 9000 3113 8993 3110 8992
      3107 8992 3100 9002 3101 9026 3119 9003
TIME...MOT...LOC 0603Z 229DEG 43KT 3104 9013

$$

MSC147-070630-
/O.CON.KLIX.TO.W.0009.000000T0000Z-140407T0630Z/
WALTHALL MS-
103 AM CDT MON APR 7 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR WALTHALL
COUNTY...

AT 102 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES WEST OF DEXTER...
OR 13 MILES NORTH OF FRANKLINTON...MOVING NORTHEAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  DEXTER BY 110 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
SMALL HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3117 9000 3114 9000 3113 8993 3110 8992
      3107 8992 3100 9002 3101 9026 3119 9003
TIME...MOT...LOC 0603Z 229DEG 43KT 3104 9013

$$

24/RR
756 
WWUS54 KLIX 070606
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
106 AM CDT MON APR 7 2014

MSC147-070616-
/O.CAN.KLIX.TO.W.0009.000000T0000Z-140407T0630Z/
WALTHALL MS-
106 AM CDT MON APR 7 2014

...THE TORNADO WARNING FOR WALTHALL COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

LAT...LON 3117 9000 3114 9000 3113 8993 3110 8992
      3107 8992 3100 9002 3101 9026 3119 9003
TIME...MOT...LOC 0606Z 229DEG 43KT 3106 9010

$$

24/RR

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 10:17 PM CDTSevere Thunderstorm WarningLIXAscension, East Baton Rouge, Iberville, Livingston, West Baton Rouge58 min
Apr 6, 11:23 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Livingston37 min
Apr 6, 11:43 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, West Baton Rouge47 min
Apr 7, 12:36 AM CDTSevere Thunderstorm WarningLIXTangipahoa, Washington54 min
Apr 7, 1:41 AM CDTAreal Flood AdvisoryLIXAscension, Assumption, Livingston, Saint James, Saint John the Baptist, Tangipahoa64 min
Apr 7, 2:51 AM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, Iberville, Livingston, Saint Helena, Tangipahoa and 2 more114 min
Apr 7, 3:53 AM CDTSmall Craft AdvisoryLIX9 hr
Apr 7, 4:23 AM CDTSpecial Marine WarningLIX37 min
Apr 7, 4:44 AM CDTSpecial Marine WarningLIX61 min
Apr 7, 5:32 AM CDTSpecial Marine WarningLIX118 min
Apr 7, 5:45 AM CDTSpecial Marine WarningLIX90 min
Apr 7, 6:31 AM CDTSpecial Marine WarningLIX89 min
Apr 7, 7:50 AM CDTSpecial Marine WarningLIX115 min
Apr 7, 3:58 PM CDTSmall Craft AdvisoryLIX42 hr

Nearby

Tornado Warnings in Louisiana, 2014Tornado Warnings in Mississippi, 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.