Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 41, NWS New Orleans, LA

June 21, 2001Jefferson Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jun 21, 2001, 3:01 PM CDT for Jefferson Parish, Louisiana. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 21, 2001, 3:01 PM CDT (20:01 UTC)
Expired: Jun 21, 2001, 3:30 PM CDT
In force: 29 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Jefferson Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jun 21, 3:03 PM CDT	Thunderstorm Wind	Metairie, LA	Large tree branches were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 hours before the alert went out and 74 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: 2073 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 763 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -25 m²/s²
0-3 km storm-relative helicity: -29 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 212003
TORNEW
LAC051-212030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
301 PM CDT THU JUN 21 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...KENNER...METAIRIE

* UNTIL 330 PM CDT

* AT 300 PM CDT...PUBLIC REPORTED A TORNADO NEAR CLEARVIEW AND WEST  
  METAIRIE ROAD MOVING EAST AT 15 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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 2:29 PM CDT	Severe Thunderstorm Warning	LIX	Saint Charles, Saint John the Baptist	31 min
Jun 21, 2:55 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Orleans	25 min
Jun 21, 3:15 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	30 min
Jun 21, 3:21 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Plaquemines	39 min
Jun 21, 3:41 PM CDT	Flash Flood Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	3 hr
Jun 21, 3:44 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	31 min
Jun 21, 4:05 PM CDT	Severe Thunderstorm Warning	LIX	Saint Bernard	40 min

Nearby

Tornado Warnings in Louisiana, 2001 Every tornado warning in 2001 Tornadoes in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.