Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 10, NWS New Orleans, LA

March 3, 2001Jefferson Parish, Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Mar 3, 2001, 8:14 AM CST for Jefferson Parish, Saint Charles 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Mar 3, 2001, 8:14 AM CST (14:14 UTC)
Expired: Mar 3, 2001, 8:45 AM CST
In force: 31 min
Issued by: NWS New Orleans, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Jefferson Parish, LA, Saint Charles Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.2 hours before the alert went out and 65 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: 40 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 977 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

133 
WFUS54 KLIX 031414
TORNEW
LAC051-089-031445-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
814 AM CST SAT MAR 3 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...AVONDALE...HARVEY...MARRERO...
  TIMBERLANE
  ST. CHARLES PARISH IN SOUTHEAST LOUISIANA

* UNTIL 845 AM CST

* AT 809 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES SOUTHWEST OF AVONDALE...MOVING NORTHEAST 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 2975 9021 2977 9020 2982 9006 2986 9002
          2992 9002 2992 9012 3001 9012 2989 9034
          2983 9029 2980 9029 2978 9025 2976 9025

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 3, 1:40 AM CST	Flash Flood Warning	LIX	Saint Tammany	3 hr
Mar 3, 6:35 AM CST	Flash Flood Warning	LIX	Saint Tammany	3 hr
Mar 3, 7:57 AM CST	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Saint Charles	33 min
Mar 3, 8:34 AM CST	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	26 min
Mar 3, 12:31 PM CST	Severe Thunderstorm Warning	LIX	Assumption, Lafourche, Saint Charles, Saint James, Saint John the Baptist, Terrebonne	44 min
Mar 3, 12:31 PM CST	Severe Thunderstorm Warning	LIX	Ascension	44 min
Mar 3, 1:45 PM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	60 min
Mar 3, 1:50 PM CST	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	40 min
Mar 3, 1:50 PM CST	Severe Thunderstorm Warning	LIX	Jefferson, Saint Charles	40 min
Mar 3, 2:10 PM CST	Severe Thunderstorm Warning	LIX	Washington	35 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; the sounding from the Mesonet's radiosonde archive.