Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 2, NWS New Orleans, LA

February 21, 2003Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Feb 21, 2003, 8:38 AM CST for Saint Bernard Parish, Louisiana. It was in force for 7 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, 8:38 AM CST (14:38 UTC)
Expired: Feb 21, 2003, 8:45 AM CST
In force: 7 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint Bernard Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.6 hours before the alert went out and 49 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: 362 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 504 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

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

685 
WFUS54 KLIX 211438
TORNEW
LAC087-211445-

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

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. BERNARD PARISH IN SOUTHEAST LOUISIANA

* UNTIL 845 AM CST

* AT 833 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTHWEST OF   
  YSCLOSKEY...MOVING NORTHEAST AT 45 MPH.

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 2971 8965 2983 8984 2986 8964 2998 8949
          2981 8939

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 4:02 AM CST	Severe Thunderstorm Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	58 min
Feb 21, 4:48 AM CST	Severe Thunderstorm Warning	LIX	East Feliciana, Saint Helena	57 min
Feb 21, 6:33 AM CST	Special Marine Warning	LIX		27 min
Feb 21, 7:08 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	52 min
Feb 21, 8:26 AM CST	Special Marine Warning	LIX		2 hr
Feb 21, 10:25 AM CST	Special Marine Warning	LIX		95 min
Feb 21, 11:56 AM CST	Special Marine Warning	LIX		64 min

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.