Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 74, NWS New Orleans, LA

October 29, 2002Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 29, 2002, 5:58 AM CST for Saint Tammany Parish, Louisiana. It was in force for 56 days. 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 29, 2002, 5:58 AM CST (11:58 UTC)
Expired: Dec 23, 2002, 8:30 PM CST
In force: 56 days
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint Tammany 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 29, 1:25 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 12.0 hours before the alert went out and 86 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: 1078 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 905 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

815 
WFUS54 KLIX 291158
TORNEW
LAC103-291230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
558 AM CST TUE OCT 29 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. TAMMANY PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF COVINGTON

* UNTIL 630 AM CST

* AT 556 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES WEST OF
  COVINGTON...MOVING EAST AT 40 MPH.

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

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 29, 3:41 AM CST	Tornado Warning	LIX	Pointe Coupee	56 days
Oct 29, 4:11 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Iberville, West Baton Rouge	34 min
Oct 29, 4:46 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	44 min
Oct 29, 5:04 AM CST	Severe Thunderstorm Warning	LIX	Ascension	26 min
Oct 29, 5:31 AM CST	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Tangipahoa	44 min
Oct 29, 5:46 AM CST	Tornado Warning	LIX	Tangipahoa	56 days
Oct 29, 5:51 AM CST	Special Marine Warning	LIX		84 min
Oct 29, 6:26 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	49 min
Oct 29, 7:39 AM CST	Special Marine Warning	LIX		96 min
Oct 29, 8:45 AM CST	Special Marine Warning	LIX		2 hr
Oct 29, 8:45 AM CST	Special Marine Warning	LIX		2 hr

Nearby

Tornado Warnings in Louisiana, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.