Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 3, NWS New Orleans, LA

February 21, 2003Washington Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Feb 21, 2003, 11:53 PM CST for Washington Parish, Louisiana. It was in force for 22 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: Feb 21, 2003, 11:53 PM CST (05:53 UTC)
Expired: Feb 22, 2003, 12:15 AM CST
In force: 22 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Washington 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
Feb 21, 8:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.9 hours before the alert went out and 73 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: 199 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 440 m²/s²
0-3 km storm-relative helicity: 510 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.9

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 220553
TORNEW
LAC117-220615-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1152 PM CST FRI FEB 21 2003

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

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

* UNTIL 1215 AM CST

* AT 1150 PM CST...LAW ENFORCEMENT REPORTED A POSSIBLE TORNADO 
  TOUCH DOWN 5 MILES WEST OF VARNADO...OR ABOUT 7 MILES NORTHWEST
  OF BOGALUSA...MOVING NORTHEAST AT 60 MPH.

  RADAR INDICATED A SEVERE THUNDERSTORM POSSIBLY PRODUCING A TORNADO 
  IN CENTRAL WASHINGTON PARISH.

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 3079 8988 3086 9003 3100 8994 3100 8973

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 6:05 PM CST	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	25 min
Feb 21, 6:35 PM CST	Flash Flood Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	4 hr
Feb 21, 11:22 PM CST	Special Marine Warning	LIX		53 min
Feb 21, 11:22 PM CST	Special Marine Warning	LIX		53 min
Feb 22, 12:28 AM CST	Special Marine Warning	LIX		2 hr

Nearby

Tornado Warnings in Louisiana, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.