Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 25, NWS New Orleans, LA

June 30, 2003Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jun 30, 2003, 11:54 AM CDT for Saint Bernard Parish, Louisiana. It was in force for 31 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: Jun 30, 2003, 11:54 AM CDT (16:54 UTC)
Expired: Jun 30, 2003, 12:25 PM CDT
In force: 31 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint Bernard 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
Jun 30, 6:55 AM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.9 hours before the alert went out and 44 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: 124 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 568 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

789 
WFUS54 KLIX 301654
TORNEW
LAC087-301725-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1152 AM CDT MON JUN 30 2003

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. BERNARD PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF CHALMETTE

* UNTIL 1225 PM CDT

* AT 1148 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SQUALL WITH A POSSIBLE TORNADO 6 MILES SOUTH OF YSCLOSKEY...OR     
  ABOUT 18 MILES EAST OF BELLE CHASSE...MOVING NORTHWEST AT 30 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 2993 8974 2988 8966 2979 8961 2973 8964
          2976 8977 2981 8981 2980 8987 2992 8990
          2998 9000 2999 8993

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 9:50 AM CDT	Tornado Warning	LIX	Plaquemines	25 min
Jun 30, 10:07 AM CDT	Flash Flood Warning	LIX	Assumption, Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard and 4 more	4 hr
Jun 30, 10:46 AM CDT	Tornado Warning	LIX	Saint Bernard	44 min
Jun 30, 12:31 PM CDT	Tornado Warning	LIX	Saint John the Baptist	29 min
Jun 30, 12:43 PM CDT	Tornado Warning	LIX	Orleans	32 min
Jun 30, 1:09 PM CDT	Flash Flood Warning	LIX	Saint Tammany, Tangipahoa	3 hr
Jun 30, 1:17 PM CDT	Tornado Warning	LIX	Saint Tammany	28 min
Jun 30, 5:11 PM CDT	Flash Flood Warning	LIX	Saint Tammany, Tangipahoa, Washington	4 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.