Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 2, NWS New Orleans, LA

March 31, 2002Lafourche Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Mar 31, 2002, 10:51 AM CST for Lafourche Parish, Louisiana. It was in force for 24 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 31, 2002, 10:51 AM CST (16:51 UTC)
Expired: Mar 31, 2002, 11:15 AM CST
In force: 24 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Lafourche Parish, LA

What was reported inside it

Time	Report	Where	Remark
Mar 31, 11:02 AM CST	Hail 0.75	Raceland, LA

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, 4.9 hours before the alert went out and 113 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: 663 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

277 
WFUS54 KLIX 311651
TORNEW
LAC057-109-311715-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1050 AM CST SUN MAR 31 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  LAFOURCHE PARISH IN SOUTHEAST LOUISIANA
  TERREBONNE PARISH IN SOUTHEAST LOUISIANA

* UNTIL 1115 AM CST

* AT 1048 AM CST...THE PUBLIC REPORTED A JUST NORTH OF               
  HOUMA...MOVING EAST AT 20 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.

LAT...LON 2974 9085 2956 9080 2964 9037 2981 9053

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 5:27 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Pointe Coupee, West Baton Rouge	48 min
Mar 31, 6:15 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena, Tangipahoa	45 min
Mar 31, 7:03 AM CST	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa, Washington	42 min
Mar 31, 7:44 AM CST	Severe Thunderstorm Warning	LIX	Washington	61 min
Mar 31, 10:09 AM CST	Special Marine Warning	LIX		66 min
Mar 31, 10:51 AM CST	Tornado Warning	LIX	Terrebonne	8 days
Mar 31, 10:56 AM CST	Special Marine Warning	LIX		94 min
Mar 31, 11:12 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.