Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 32, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 29, 2011, 4:56 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, Louisiana. It was in force for 34 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 29, 2011, 4:56 PM CDT (21:56 UTC)
- Expired
- Mar 29, 2011, 5:30 PM CDT
- In force
- 34 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Saint Charles Parish, LA, Saint John the Baptist Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 29, 5:00 PM CDT | HAIL 1 | Laplace, LA | TRAINED SPOTTER REPORTED QUARTER SIZED HAIL ALONG THE INTERSTATE 10/55 INTERCHANGE IN THE LAPLACE AREA. |
| Mar 29, 5:00 PM CDT | HAIL 1.75 | 3 W Laplace, LA | BROADCAST MEDIA REPORTED GOLF BALL SIZED HAIL FROM A VIEWER IN THE LAPLACE AREA. |
| Mar 29, 5:02 PM CDT | HAIL 0.75 | Laplace, LA | EMERGENCY MANAGEMENT IN ST. JOHN THE BAPTIST PARISH REPORTED PENNY SIZED HAIL IN THE LAPLACE AREA. |
| Mar 29, 5:05 PM CDT | HAIL 0.75 | Laplace, LA | |
| Mar 29, 5:10 PM CDT | TORNADO | Reserve, LA | FUNNEL CLOUD SEEN. POWER POLES SNAPPED NEAR GARYVILLE AND RESERVE. |
| Mar 29, 5:15 PM CDT | TORNADO 0 | Edgard, LA | SURVEY TEAM FOUND DAMAGE IN THE EDGARD AREA CONSISTENT WITH A WEAK EF0 TORNADO AND ESTIMATED WINDS OF 65 MPH. LARGE LIMBS DOWN, CORNER OF A ROOF BEING LOST SHINGLES. MAX WIDTH OF 50 YDS, PATH LENGTH 250 YDS. DAMAGE PATH CONTINUES INTO ST CHARLES PARISH WHERE E |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 29, 3:17 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 79 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.
- Mixed-layer CAPE
- 7 J/kg
- Mixed-layer CIN
- -508 J/kg
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
773 WFUS54 KLIX 292156 TORLIX LAC089-095-292230- /O.NEW.KLIX.TO.W.0032.110329T2156Z-110329T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 456 PM CDT TUE MAR 29 2011 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN ST. CHARLES PARISH IN SOUTHEAST LOUISIANA... CENTRAL ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA... THIS INCLUDES THE CITIES OF...RESERVE...LAPLACE... * UNTIL 530 PM CDT * AT 452 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR GARYVILLE...OR NEAR RESERVE...MOVING EAST AT 15 MPH. * THE TORNADO WILL BE NEAR... LAPLACE BY 520 PM CDT... NORCO AND 6 MILES NORTH OF NEW SARPY BY 530 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. && LAT...LON 3011 9042 2998 9038 3004 9064 3010 9063 TIME...MOT...LOC 2156Z 275DEG 15KT 3007 9058 $$ 24/RR
1 follow-up statement
696 WWUS54 KLIX 292215 SVSLIX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 515 PM CDT TUE MAR 29 2011 LAC089-095-292230- /O.CON.KLIX.TO.W.0032.000000T0000Z-110329T2230Z/ ST. JOHN THE BAPTIST LA-ST. CHARLES LA- 515 PM CDT TUE MAR 29 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR NORTHWESTERN ST. CHARLES AND CENTRAL ST. JOHN THE BAPTIST PARISHES... AT 511 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS TORNADO WAS LOCATED NEAR RESERVE...MOVING EAST AT 15 MPH. THE TORNADO WILL BE NEAR... LAPLACE BY 520 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM HAS PRODUCED REPORTED HAIL UP TO GOLF BALL SIZE. POWER WAS REPORTED OUT IN RESERVE BY A NWS COOPERATIVE OBSERVER. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. && LAT...LON 3001 9039 3005 9056 3010 9056 3011 9042 TIME...MOT...LOC 2215Z 275DEG 14KT 3007 9050 $$ 24/RR
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 3:52 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Livingston | 40 min |
| Mar 29, 3:57 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville | 43 min |
| Mar 29, 4:03 PM CDT | Tornado Warning | LIX | Ascension, Saint James, Saint John the Baptist | 27 min |
| Mar 29, 4:25 PM CDT | Special Marine Warning | LIX | 35 min | |
| Mar 29, 4:28 PM CDT | Tornado Warning | LIX | Saint James, Saint John the Baptist | 32 min |
| Mar 29, 4:51 PM CDT | Areal Flood Advisory | LIX | Ascension, Saint James, Saint John the Baptist | 54 min |
| Mar 29, 4:56 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Iberville | 64 min |
| Mar 29, 5:05 PM CDT | Severe Thunderstorm Warning | LIX | Saint James, Saint John the Baptist | 55 min |
| Mar 29, 5:14 PM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Livingston, Saint Helena | 61 min |
| Mar 29, 5:16 PM CDT | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa, Washington | 59 min |
| Mar 29, 5:25 PM CDT | Special Marine Warning | LIX | 65 min | |
| Mar 29, 5:26 PM CDT | Tornado Warning | LIX | Saint Charles, Saint John the Baptist | 34 min |
| Mar 29, 6:06 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Saint Charles | 24 min |
| Mar 29, 6:33 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans | 27 min |
| Mar 29, 6:43 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 2 hr |
| Mar 29, 6:52 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 23 min |
Nearby
Tornado Warnings in Louisiana, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.