Alert archive / Louisiana / Tornado Warnings in 2000

Tornado Warning 35, NWS New Orleans, LA

July 22, 2000Saint Tammany Parish, Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jul 22, 2000, 6:54 PM CDT for Saint Tammany Parish, Tangipahoa Parish, Louisiana. It was in force for 66 min. 3 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: Jul 22, 2000, 6:54 PM CDT (23:54 UTC)
Expired: Jul 22, 2000, 8:00 PM CDT
In force: 66 min
Issued by: NWS New Orleans, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Saint Tammany Parish, LA, Tangipahoa Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jul 22, 7:05 PM CDT	Thunderstorm Wind	Robert, LA	Trees were knocked down one mile north of Highway 190.
Jul 22, 7:18 PM CDT	Hail 0.75	Covington, LA
Jul 22, 7:21 PM CDT	Thunderstorm Wind	Ponchatoula, LA	Several trees were blown down.

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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 51 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: 2327 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 754 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -30 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.

089 
WFUS54 KLIX 222356
TORNEW
LAC103-105-230100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
654 PM CDT SAT JUL 22 2000

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. TAMMANY PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...GOODBEE...COVINGTON...EDEN 
  ISLE...MANDEVILLE... 
  TANGIPAHOA PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF HAMMOND

* UNTIL 800 PM CDT

* AT 651 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER PONCHATOULA...OR ABOUT 4 MILES SOUTHEAST OF HAMMOND...
  MOVING EAST AT 30 MPH.
 
  IN ADDITION SEVERE THUNDERSTORMS WERE RAPIDLY DEVELOPING NEAR   
  COVINGTON AND ANOTHER NEAR ROBERT. THESE STORMS MAY PRODUCE A TORNADO
  AT ANY TIME THROUGH 8 PM.

* THE TORNADO IS EXPECTED TO BE NEAR...
  MADISONVILLE AT 720 PM CDT
  7 MILES SOUTH OF COVINGTON AT 725 PM CDT
  MANDEVILLE AT 730 PM CDT
  LACOMBE AT 755 PM CDT
  
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND 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.

LAT...LON 3058 9044 3041 9052 3013 8983 3038 8972

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 3:25 PM CDT	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	65 min
Jul 22, 4:31 PM CDT	Severe Thunderstorm Warning	LIX	Saint Helena	59 min
Jul 22, 5:01 PM CDT	Severe Thunderstorm Warning	LIX	West Feliciana	59 min
Jul 22, 5:11 PM CDT	Severe Thunderstorm Warning	LIX	Washington	49 min
Jul 22, 6:13 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	32 min
Jul 22, 6:32 PM CDT	Tornado Warning	LIX	Saint Tammany	28 min
Jul 22, 6:44 PM CDT	Tornado Warning	LIX	Tangipahoa	16 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.