Alert archive / Louisiana / Tornado Warnings in 2000

Tornado Warning 66, NWS New Orleans, LA

December 13, 2000Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Dec 13, 2000, 4:55 PM CST for Saint John the Baptist Parish, Louisiana. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Dec 13, 2000, 4:55 PM CST (22:55 UTC)
Expired: Dec 13, 2000, 5:30 PM CST
In force: 35 min
Issued by: NWS New Orleans, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Saint John the Baptist 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
Dec 13, 4:00 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.9 hours before the alert went out and 116 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: 501 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 307 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 132257
TORNEW

LAC007-057-093-095-132330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
455 PM CST WED DEC 13 2000

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ASSUMPTION PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF NAPOLEONVILLE
  LAFOURCHE PARISH IN SOUTHEAST LOUISIANA
  ST. JAMES PARISH IN SOUTHEAST LOUISIANA
  ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA

* UNTIL 530 PM CST

* AT 450 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER LABADIEVILLE...OR ABOUT 5 MILES SOUTHEAST OF
  NAPOLEONVILLE...MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
RURAL ST. JAMES PARISH AT 510 PM CST
RURAL LAFOURCHE PARISH AT 510 PM CST
RURAL ST. JOHN THE BAPTIST PARISH AT 520 PM CST

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 IN NEW ORLEANS.

LAT...LON 2998 9104 2980 9104 2979 9053 3001 9053

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 13, 4:55 PM CST	Tornado Warning	LIX	Assumption, Lafourche, Saint James	35 min
Dec 13, 5:04 PM CST	Severe Thunderstorm Warning	LIX	Livingston, Tangipahoa	56 min
Dec 13, 5:04 PM CST	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	56 min
Dec 13, 5:23 PM CST	Tornado Warning	LIX	Washington	37 min

Nearby

Tornado Warnings in Louisiana, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.