Alert archive / Louisiana / Tornado Warnings in 1997

Tornado Warning 7, NWS New Orleans, LA

May 28, 1997Lafourche Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at May 28, 1997, 4:55 PM CDT for Lafourche Parish, Louisiana. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 28, 1997, 4:55 PM CDT (21:55 UTC)
Expired: May 28, 1997, 5:30 PM CDT
In force: 35 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Lafourche 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
May 28, 1:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 107 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: 570 J/kg
Mixed-layer CIN: -154 J/kg
Mixed-layer LCL: 1200 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

684 
WFUS1 KNEW 282158 RRA
TORNEW
LAC057-282230-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
455 PM CDT WED MAY 28 1997
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  530 PM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST LOUISIANA
 
   ...NORTHERN LAFOURCHE PARISH
 
 
AT 459 PM NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE TORNADO
NEAR KRAEMER IN NORTHERN LAFOURCHE PARISH. THE STORM IS MOVING TO
THE NORTH AT 10 MPH TOWARDS LAKE DES ALLEMANDS.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...GET UNDER A WORKBENCH OR PIECE
OF STURDY FURNITURE. SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A
CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...OR CUSHIONS TO
COVER YOUR BODY.  AVOID WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 1:45 PM CDT	Severe Thunderstorm Warning	LIX	Livingston	60 min
May 28, 3:08 PM CDT	Severe Thunderstorm Warning	LIX	Saint James	67 min
May 28, 4:45 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche	15 min
May 28, 5:27 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche	33 min
May 28, 6:31 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee	29 min
May 28, 6:50 PM CDT	Severe Thunderstorm Warning	LIX	West Feliciana	25 min

Nearby

Tornado Warnings in Louisiana, 1997 Every tornado warning in 1997 Tornadoes in 1997

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.