Alert archive / Louisiana / Tornado Warnings in 2006

Tornado Warning 49, NWS New Orleans, LA

October 17, 2006Jefferson Parish, Plaquemines Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 17, 2006, 3:28 AM CDT 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: Oct 17, 2006, 3:28 AM CDT (08:28 UTC)
Expired: Oct 17, 2006, 4:15 AM CDT
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 watch it was issued in

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

Issued	Product	Office	Lasted
Oct 17, 1:38 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.5 hours before the alert went out and 61 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: 607 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 337 m²/s²
0-3 km storm-relative helicity: 463 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 170828
TORLIX
LAC051-075-170915-
/O.NEW.KLIX.TO.W.0049.061017T0828Z-061017T0915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
328 AM CDT TUE OCT 17 2006

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...TIMBERLANE...HARVEY
  PLAQUEMINES PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF BELLE CHASSE

* UNTIL 415 AM CDT

* AT 326 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  BARATARIA...OR ABOUT 13 MILES SOUTHWEST OF BELLE CHASSE...MOVING
  NORTHEAST AT 45 MPH.

* THE TORNADO IS WILL BE NEAR...
  BELLE CHASSE...TIMBERLANE AND 7 MILES SOUTHEAST OF HARVEY BY 340 AM
  CDT
  7 MILES SOUTHEAST OF TERRYTOWN BY 345 AM CDT

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

LAT...LON 2969 9014 2971 9020 2975 9013 2981 9014
      2992 9003 2989 9000 2990 8994 2979 8987
      2980 8981 2979 8981 2957 9013

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 16, 10:24 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, Pointe Coupee, West Feliciana	66 min
Oct 17, 2:49 AM CDT	Special Marine Warning	LIX		86 min
Oct 17, 3:13 AM CDT	Tornado Warning	LIX	Lafourche	47 min
Oct 17, 3:51 AM CDT	Special Marine Warning	LIX		84 min
Oct 17, 4:02 AM CDT	Tornado Warning	LIX	Saint Bernard	28 min
Oct 17, 5:04 AM CDT	Tornado Warning	LIX	Plaquemines	26 min
Oct 17, 5:15 AM CDT	Special Marine Warning	LIX		2 hr
Oct 17, 7:33 AM CDT	Special Marine Warning	LIX		117 min
Oct 17, 9:21 AM CDT	Special Marine Warning	LIX		84 min

Nearby

Tornado Warnings in Louisiana, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.