Alert archive / Mississippi / Tornado Warnings in 2012
Tornado Warning 74, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Aug 30, 2012, 8:44 PM CDT for Walthall County, Mississippi. 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 as issued.
The facts
- Issued
- Aug 30, 2012, 8:44 PM CDT (01:44 UTC)
- Expired
- Aug 30, 2012, 9:15 PM CDT
- In force
- 31 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
County Walthall County, MS
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 30, 3:56 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.7 hours before the alert went out and 116 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
- 1798 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 535 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 12.1
The text
As transmitted, in the capitals the NWS used until 2016.
073
WFUS54 KLIX 310144
TORLIX
MSC147-310215-
/O.NEW.KLIX.TO.W.0074.120831T0144Z-120831T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
844 PM CDT THU AUG 30 2012
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL WALTHALL COUNTY IN SOUTHERN MISSISSIPPI...
* UNTIL 915 PM CDT
* AT 843 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SALEM...OR
16 MILES WEST OF COLUMBIA...MOVING NORTH AT 35 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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3133 9007 3134 9004 3124 9004 3123 9002
3118 9002 3117 9000 3116 9001 3117 9018
3135 9010
TIME...MOT...LOC 0144Z 199DEG 31KT 3120 9009
$$
DUNN2 follow-up statements
328
WWUS54 KLIX 310155
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
855 PM CDT THU AUG 30 2012
MSC147-310215-
/O.CON.KLIX.TO.W.0074.000000T0000Z-120831T0215Z/
WALTHALL MS-
855 PM CDT THU AUG 30 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTH
CENTRAL WALTHALL COUNTY...
AT 852 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
STORM WAS LOCATED NEAR SALEM...OR 14 MILES WEST OF COLUMBIA...MOVING
NORTH AT 30 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3121 9003 3122 9015 3135 9010 3133 9007
3134 9004 3124 9004
TIME...MOT...LOC 0155Z 193DEG 24KT 3128 9007
$$
DUNN774
WWUS54 KLIX 310213
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
913 PM CDT THU AUG 30 2012
MSC147-310222-
/O.EXP.KLIX.TO.W.0074.000000T0000Z-120831T0215Z/
WALTHALL MS-
913 PM CDT THU AUG 30 2012
...THE TORNADO WARNING FOR NORTH CENTRAL WALTHALL COUNTY WILL EXPIRE
AT 915 PM CDT...
THE CIRCULATION THAT PROMPTED THE WARNING WEAKENED AND MOVED TO THE
NORTH OF WALTHALL COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 3121 9003 3122 9015 3135 9010 3133 9007
3134 9004 3124 9004
TIME...MOT...LOC 0212Z 193DEG 24KT 3139 9004
$$
DUNNThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 8:41 PM CDT | Flash Flood Warning | LIX | Walthall | 3 hr |
| Aug 31, 2:39 PM CDT | Flash Flood Warning | LIX | Amite, Pike, Walthall | 4 hr |
Nearby
Tornado Warnings in Mississippi, 2012Every tornado warning in 2012Tornadoes in 2012
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.