Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 62, NWS New Orleans, LA

October 25, 2002Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 25, 2002, 6:30 PM CDT for Saint Charles Parish, Louisiana. It was in force for 11 days. 2 reports 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, 6:30 PM CDT (23:30 UTC)
Expired: Nov 5, 2002, 11:15 AM CST
In force: 11 days
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint Charles Parish, LA

What was reported inside it

Time	Report	Where	Remark
Oct 25, 6:30 PM CDT	Thunderstorm Wind	St Rose, LA	Thunderstorm winds knocked down eight utility poles.
Nov 5, 9:50 AM CST	Tornado F1	St Rose, LA	A tornado destroyed one mobile home and heavily damaged another. Four other mobile homes received minor damage. Power lines were also knocked 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, 11.5 hours before the alert went out and 77 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.

413 
WFUS54 KLIX 252330
TORNEW
LAC089-260000-

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

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. CHARLES PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF HAHNVILLE

* UNTIL 700 PM CDT

* AT 624 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER DES ALLEMANDS...OR
  ABOUT 9 MILES SOUTH OF HAHNVILLE...MOVING NORTHEAST AT 10 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   BOUTTE AT 640 PM CDT
   DESTREHAN...NEW SARPY...HAHNVILLE...NORCO AT 700 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 2977 9039 2981 9046 2991 9050 3005 9039
          3003 9028 2987 9026

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, 6:20 PM CDT	Tornado Warning	LIX	Lafourche	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.