Alert archive / Louisiana / Tornado Warnings in 2000

Tornado Warning 60, NWS New Orleans, LA

November 8, 2000Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Nov 8, 2000, 11:49 PM CST for Saint Tammany Parish, Louisiana. It was in force for 41 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Nov 8, 2000, 11:49 PM CST (05:49 UTC)
Expired: Nov 9, 2000, 12:30 AM CST
In force: 41 min
Issued by: NWS New Orleans, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Saint Tammany Parish, LA

What was reported inside it

Time	Report	Where	Remark
Nov 9, 12:00 AM CST	Thunderstorm Wind 50 M	Mandeville, LA
Nov 9, 12:03 AM CST	Thunderstorm Wind	Lewisburg, LA	A severe thunderstorm produced 50 knot wind gust (58 mph) at the north end of the Lake Pontchartrain Causeway. Several trees were blown down in nearby Lewisburg. Three houses were damaged by the fallen trees and large tree limbs.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Nov 8, 6:00 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.8 hours before the alert went out and 42 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: 709 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 796 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 090550
TORNEW

LAC103-090630-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1149 PM CST WED NOV 8 2000

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

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

* UNTIL 1230 AM CST

* AT 1144 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 9 MILES SOUTH OF MADISONVILLE...OR ABOUT 10 MILES SOUTHWEST
  OF MANDEVILLE...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  4 MILES SOUTHEAST OF MADISONVILLE AT 1155 PM CST
  OVER ABITA SPRINGS...5 MILES SOUTHEAST OF COVINGTON AT 1205 AM CST
  OVER BUSH...SUN AT 1225 AM CST

SEEK SHELTER ON THE LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY
OR ROOM SUCH AS A CLOSET OR BATHROOM. GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST THURSDAY MORNING 
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. 

LAT...LON 3031 9002 3054 8980 3066 8985 3066 9000
          3060 9007 3050 9012 3045 9019 3038 9022
          3037 9009

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 8, 8:17 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Iberville, West Baton Rouge	28 min
Nov 8, 8:44 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana	31 min
Nov 8, 8:55 PM CST	Severe Thunderstorm Warning	LIX	West Baton Rouge	35 min
Nov 8, 9:12 PM CST	Tornado Warning	LIX	East Feliciana	33 min
Nov 8, 10:03 PM CST	Severe Thunderstorm Warning	LIX	Terrebonne	27 min
Nov 8, 10:31 PM CST	Severe Thunderstorm Warning	LIX	Lafourche	29 min
Nov 8, 10:38 PM CST	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa, Washington	67 min
Nov 8, 11:11 PM CST	Severe Thunderstorm Warning	LIX	Saint Charles	19 min
Nov 8, 11:33 PM CST	Severe Thunderstorm Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	57 min
Nov 8, 11:33 PM CST	Severe Thunderstorm Warning	LIX	Lafourche	57 min
Nov 8, 11:44 PM CST	Tornado Warning	LIX	Tangipahoa	31 min
Nov 9, 12:18 AM CST	Severe Thunderstorm Warning	LIX	Washington	27 min
Nov 9, 12:31 AM CST	Tornado Warning	LIX	Washington	29 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.