Alert archive / Louisiana / Tornado Warnings in 2005

Tornado Warning 3, NWS New Orleans, LA

March 7, 2005Jefferson Parish, Plaquemines Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Mar 7, 2005, 4:43 PM CST for Jefferson Parish, Plaquemines Parish, Louisiana. It was in force for 47 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 7, 2005, 4:43 PM CST (22:43 UTC)
Expired: Mar 7, 2005, 5:30 PM CST
In force: 47 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

Counties Jefferson Parish, LA, Plaquemines Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 73 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 894 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 171 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.

000 
WFUS54 KLIX 072244
TORLIX
LAC051-075-072330-
/O.NEW.KLIX.TO.W.0003.050307T2243Z-050307T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
443 PM CST MON MAR 7 2005

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON PARISH IN SOUTHEAST LOUISIANA
  PLAQUEMINES PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF PORT SULPHUR

* UNTIL 530 PM CST

* AT 438 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES
  SOUTHWEST OF LAFITTE...OR ABOUT 8 MILES EAST OF CUT OFF...MOVING
  EAST AT 50 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  7 MILES SOUTH OF MYRTLE GROVE BY 455 PM CST
  POINTE A LA HACHE BY 505 PM CST
  PORT SULPHUR BY 515 PM CST

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

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. 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.

LAT...LON 2970 9014 2947 9011 2947 8965 2974 8972
      2974 9005

$$

8

1 follow-up statement

000 
WWUS54 KLIX 072311
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
509 PM CST MON MAR 7 2005

LAC051-075-072330-
/O.CON.KLIX.TO.W.0003.000000T0000Z-050307T2330Z/
PLAQUEMINES LA-JEFFERSON LA-
509 PM CST MON MAR 7 2005

...A TORNADO WARNING CONTINUES UNTIL 530 PM CST FOR JEFFERSON AND
PLAQUEMINES PARISHES...

AT 504 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
ABOUT 15 MILES WEST OF PORT SULPHUR...MOVING EAST AT 45 MPH.

COMMUNITIES IN THE PATH OF THIS SEVERE THUNDERSTORM  AND TORNADO 
INCLUDE MYRTLE GROVE ...POINTE A LA HACHE. PORT SULPHUR BY 520 PM CST

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

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

LAT...LON 2971 9014 2947 9000 2948 8965 2975 8972
      2975 9005

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 3:56 PM CST	Severe Thunderstorm Warning	LIX	Lafourche	34 min
Mar 7, 5:10 PM CST	Severe Thunderstorm Warning	LIX	Lafourche, Terrebonne	113 min
Mar 7, 5:25 PM CST	Tornado Warning	LIX	Plaquemines	94 min
Mar 7, 5:30 PM CST	Special Marine Warning	LIX		90 min

Nearby

Tornado Warnings in Louisiana, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.