Alert archive / Mississippi / Tornado Warnings in 2011
Tornado Warning 42, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Apr 4, 2011, 7:00 PM CDT for Pearl River County, Mississippi; Saint Tammany Parish, Louisiana. It was in force for 45 min. 1 report 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
- Apr 4, 2011, 7:00 PM CDT (00:00 UTC)
- Expired
- Apr 4, 2011, 7:45 PM CDT
- In force
- 45 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 4, 7:15 PM CDT | TSTM WND DMG | 4 Sse Bush, LA | LARGE OAK TREE UPROOTED AND FELL ON HOUSE JUST OFF HWY. 41. LARGE PORTION OF HOUSE WAS CRUSHED. |
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 |
|---|---|---|---|
| Apr 4, 5:28 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 0.0 hours before the alert went out and 37 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
- 3275 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 4.7
- Supercell composite
- 20.4
The text
As transmitted, in the capitals the NWS used until 2016.
658
WFUS54 KLIX 050000
TORLIX
LAC103-MSC109-050045-
/O.NEW.KLIX.TO.W.0042.110405T0000Z-110405T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
700 PM CDT MON APR 4 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN ST. TAMMANY PARISH IN SOUTHEAST LOUISIANA...
SOUTHWESTERN PEARL RIVER COUNTY IN SOUTHERN MISSISSIPPI...
THIS INCLUDES THE CITY OF PICAYUNE...
* UNTIL 745 PM CDT
* AT 655 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR FOLSOM...OR
9 MILES NORTH OF COVINGTON...MOVING EAST AT 50 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3070 8954 3051 8962 3050 8964 3046 8965
3046 8968 3041 8968 3038 8967 3051 9024
3070 9018 3066 8998 3066 8985 3070 8984
3070 8983
TIME...MOT...LOC 0000Z 285DEG 42KT 3059 9008
$$1 follow-up statement
126
WWUS54 KLIX 050015
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
715 PM CDT MON APR 4 2011
LAC103-MSC109-050045-
/O.CON.KLIX.TO.W.0042.000000T0000Z-110405T0045Z/
PEARL RIVER MS-ST. TAMMANY LA-
715 PM CDT MON APR 4 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHWESTERN PEARL RIVER COUNTY...AND NORTHERN ST. TAMMANY PARISH...
AT 713 PM CDT...A TORNADO WAS LOCATED NEAR BUSH...OR 14 MILES
NORTHEAST OF COVINGTON...MOVING EAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PICAYUNE AND MCNEIL
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3070 8954 3051 8962 3050 8964 3046 8965
3046 8968 3041 8968 3038 8967 3051 9024
3070 9018 3066 8998 3066 8985 3070 8984
3070 8983
TIME...MOT...LOC 0015Z 278DEG 42KT 3057 8988
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 7:42 PM CDT | Tornado Warning | LIX | Hancock | 48 min |
| Apr 4, 7:47 PM CDT | Severe Thunderstorm Warning | LIX | Hancock, Harrison, Jackson, Pearl River | 73 min |
| Apr 4, 8:04 PM CDT | Tornado Warning | LIX | Harrison | 41 min |
| Apr 4, 8:31 PM CDT | Tornado Warning | LIX | Jackson | 44 min |
| Apr 4, 7:17 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Saint Charles, Saint James, Saint John the Baptist | 43 min |
| Apr 4, 7:32 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 43 min |
| Apr 4, 7:37 PM CDT | Tornado Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 23 min |
| Apr 4, 7:39 PM CDT | Special Marine Warning | LIX | 2 hr | |
| Apr 4, 7:45 PM CDT | Special Marine Warning | LIX | 30 min | |
| Apr 4, 7:48 PM CDT | Wind Advisory | LIX | 11 hr | |
| Apr 4, 7:55 PM CDT | Tornado Warning | LIX | Plaquemines, Saint Bernard | 35 min |
| Apr 4, 8:08 PM CDT | Special Marine Warning | LIX | 97 min | |
| Apr 4, 8:16 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Plaquemines, Saint Bernard | 44 min |
| Apr 4, 8:49 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines | 71 min |
| Apr 4, 9:52 PM CDT | Special Marine Warning | LIX | 83 min | |
| Apr 4, 10:58 PM CDT | Special Marine Warning | LIX | 92 min |
Nearby
Tornado Warnings in Mississippi, 2011Tornado 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.