Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 5, NWS New Orleans, LA

January 29, 2001Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jan 29, 2001, 12:18 PM CST for Tangipahoa Parish, Louisiana. It was in force for 27 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Jan 29, 2001, 12:18 PM CST (18:18 UTC)
Expired
Jan 29, 2001, 12:45 PM CST
In force
27 min
Issued by
NWS New Orleans, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Tangipahoa Parish, LA

What was reported inside it

TimeReportWhereRemark
Jan 29, 12:25 PM CSTThunderstorm WindPonchatoula, LAA few mobile homes and houses were damaged by thunderstorm winds.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 29, 11:30 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.3 hours before the alert went out and 73 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 268 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
26 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
268 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 291821 COR
TORNEW

LAC105-291845-

BULLETIN - EAS ACTIVATION REQUESTED...CORRECTED...
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS-BATON ROUGE LA
ISSUED BY MOBILE AL
1220 PM CST MON JAN 29 2001

...CORRECTED FOR TORNADO WARNING ISSUANCE...

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  TANGIPAHOA PARISH IN LOUISIANA

* UNTIL 1245 PM CST

* AT 1219 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 4 MILES EAST OF PONCHATOULA...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO REMAIN OVER RURAL AREAS OF...
  SOUTHERN TANGIPAHOA...CENTRAL TANGIPAHOA AND EASTERN TANGIPAHOA
  COUNTIES.

IF YOU ARE IN THE PATH OF THIS TORNADO...ABANDON VEHICLES AND TRAILER
HOMES AND SEEK A REINFORCED SHELTER UNTIL THE STORM HAS PASSED.

LAT...LON 3049 9053 3032 9039 3049 9026 3071 9029

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 10:34 AM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, Pointe Coupee, West Baton Rouge26 min
Jan 29, 10:34 AM CSTSevere Thunderstorm WarningLIXEast Feliciana26 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Saint Helena, West Baton Rouge58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXSaint James58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXLivingston58 min
Jan 29, 11:33 AM CSTTornado WarningLIXLivingston27 min
Jan 29, 11:43 AM CSTTornado WarningLIXTangipahoa32 min
Jan 29, 11:44 AM CSTSevere Thunderstorm WarningLIXSaint Tammany, Washington61 min
Jan 29, 11:44 AM CSTSevere Thunderstorm WarningLIXSaint Charles, Saint James, Saint John the Baptist61 min
Jan 29, 12:06 PM CSTTornado WarningLIXWashington39 min
Jan 29, 12:35 PM CSTSevere Thunderstorm WarningLIXSaint Tammany, Washington55 min
Jan 29, 12:45 PM CSTSevere Thunderstorm WarningLIXLafourche, Saint Charles, Saint John the Baptist90 min
Jan 29, 12:45 PM CSTSevere Thunderstorm WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard90 min
Jan 29, 12:45 PM CSTSevere Thunderstorm WarningLIXTerrebonne90 min

Nearby

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