Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 61, NWS New Orleans, LA

October 25, 2002Lafourche Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 25, 2002, 6:20 PM CDT for Lafourche Parish, Louisiana. It was in force for 11 days. 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: Oct 25, 2002, 6:20 PM CDT (23:20 UTC)
Expired: Nov 5, 2002, 10:45 AM CST
In force: 11 days
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
Oct 25, 7:10 PM CDT	Thunderstorm Wind	Raceland, LA	Thunderstorm winds removed the roof of one mobile home and damaged another mobile home.

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, 11.3 hours before the alert went out and 104 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: 13 J/kg
Mixed-layer CIN: -230 J/kg
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 153 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 252320
TORNEW
LAC057-260015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
619 PM CDT FRI OCT 25 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 614 PM CDT...THE TERREBONNE PARISH EMERGENCY OPERATIONS 
  OFFICE REPORTED A TORNADO 7 MILES SOUTHWEST OF RACELAND...OR ABOUT 
  5 MILES NORTH OF HOUMA...MOVING NORTHEAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   RACELAND...MATHEWS AT 635 PM CDT

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 2958 9060 2968 9075 2990 9069 2989 9053
          2980 9046

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 5:06 PM CDT	Severe Thunderstorm Warning	LIX	Washington	54 min
Oct 25, 5:15 PM CDT	Tornado Warning	LIX	Saint James	30 min
Oct 25, 5:15 PM CDT	Tornado Warning	LIX	Ascension, Saint James	30 min
Oct 25, 5:15 PM CDT	Tornado Warning	LIX	Assumption	30 min
Oct 25, 6:30 PM CDT	Tornado Warning	LIX	Saint Charles	11 days
Oct 25, 6:32 PM CDT	Special Marine Warning	LIX		58 min
Oct 25, 6:49 PM CDT	Tornado Warning	LIX	Saint Charles, Saint John the Baptist	11 days
Oct 25, 6:49 PM CDT	Tornado Warning	LIX	Saint John the Baptist	26 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.