Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 18, NWS New Orleans, LA

July 7, 2002Washington Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jul 7, 2002, 5:40 PM CDT for Washington Parish, Louisiana. It was in force for 30 days. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2002, 5:40 PM CDT (22:40 UTC)
Expired: Aug 6, 2002, 6:00 AM CDT
In force: 30 days
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Washington Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 34 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: 2234 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 072240
TORNEW
LAC117-072315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
540 PM CDT SUN JUL 7 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF FRANKLINTON

* UNTIL 615 PM CDT

* AT 538 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES NORTHEAST OF
  ENON...OR ABOUT 7 MILES NORTHWEST OF BOGALUSA...MOVING WEST AT 10
  MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   ENON AT 610 PM CDT
   FRANKLINTON AT 615 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 3073 8988 3091 8988 3094 9022 3071 9022

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 4:44 PM CDT	Severe Thunderstorm Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	61 min
Jul 7, 4:55 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa	35 min
Jul 7, 5:10 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, Livingston	35 min
Jul 7, 5:12 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Washington	63 min
Jul 7, 5:55 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, West Baton Rouge	20 min
Jul 7, 6:08 PM CDT	Tornado Warning	LIX	Saint Tammany, Tangipahoa	22 min
Jul 7, 6:28 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, West Baton Rouge	47 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.