Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 64, NWS New Orleans, LA

October 25, 2002Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 25, 2002, 6:49 PM CDT for Saint John the Baptist Parish, Louisiana. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 25, 2002, 6:49 PM CDT (23:49 UTC)
Expired: Oct 25, 2002, 7:15 PM CDT
In force: 26 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint John the Baptist 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
Oct 25, 6:40 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.8 hours before the alert went out and 80 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.

810 
WFUS54 KLIX 252349
TORNEW
LAC089-095-260015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
648 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
  ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...RESERVE...LAPLACE

* UNTIL 715 PM CDT

* AT 644 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EDGARD...OR ABOUT
  4 MILES SOUTH OF RESERVE...MOVING EAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   LAPLACE AT 700 PM CDT
   NORCO...HAHNVILLE AT 710 PM CDT
   NEW SARPY...DESTREHAN AT 715 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 3010 9065 2992 9063 2994 9025 3016 9028

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, 6:30 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

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.