Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 86, NWS New Orleans, LA

December 19, 2002Washington Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Dec 19, 2002, 1:26 PM CST for Washington Parish, Louisiana. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 19, 2002, 1:26 PM CST (19:26 UTC)
Expired: Dec 19, 2002, 2:00 PM CST
In force: 34 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Washington 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 19, 11:40 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.4 hours before the alert went out and 75 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: 668 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 480 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 304 m²/s²
0-3 km storm-relative helicity: 417 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 191926
TORNEW
LAC117-192000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
126 PM CST THU DEC 19 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON PARISH IN SOUTHEAST LOUISIANA

* UNTIL 200 PM CST

* AT 122 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES WEST OF
  VARNADO...OR ABOUT 8 MILES EAST OF FRANKLINTON...MOVING NORTHEAST
  AT 50 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   VARNADO AT 135 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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 19, 9:42 AM CST	Severe Thunderstorm Warning	LIX	Saint Charles	33 min
Dec 19, 9:49 AM CST	Special Marine Warning	LIX		56 min
Dec 19, 10:19 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	26 min
Dec 19, 10:48 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	42 min
Dec 19, 11:36 AM CST	Special Marine Warning	LIX		114 min
Dec 19, 11:36 AM CST	Special Marine Warning	LIX		114 min
Dec 19, 12:06 PM CST	Severe Thunderstorm Warning	LIX	Orleans, Plaquemines, Saint Bernard	24 min
Dec 19, 12:31 PM CST	Severe Thunderstorm Warning	LIX	Ascension, Iberville, Livingston, Saint Helena, Saint Tammany, Tangipahoa and 1 more	59 min
Dec 19, 1:07 PM CST	Severe Thunderstorm Warning	LIX	Assumption, Jefferson, Lafourche, Saint Charles, Saint James, Saint John the Baptist and 1 more	53 min
Dec 19, 1:41 PM CST	Special Marine Warning	LIX		34 min
Dec 19, 1:48 PM CST	Tornado Warning	LIX	Washington	27 min
Dec 19, 1:52 PM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	38 min
Dec 19, 1:59 PM CST	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 2 more	91 min
Dec 19, 2:17 PM CST	Special Marine Warning	LIX		118 min
Dec 19, 2:17 PM CST	Special Marine Warning	LIX		118 min
Dec 19, 4:11 PM CST	Special Marine Warning	LIX		94 min

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.