Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 47, NWS New Orleans, LA

August 29, 2012Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 29, 2012, 3:06 AM CDT for Jackson County, Mississippi. It was in force for 24 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 29, 2012, 3:06 AM CDT (08:06 UTC)
Expired
Aug 29, 2012, 3:30 AM CDT
In force
24 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

County Jackson County, MS

The radar

The Mobile radar (KMOB), 36 km from the middle of the area, began a volume at 08:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 28, 6:47 PM CDTTornado WatchSPC21 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.1 hours before the alert went out and 112 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 00:00Z on 2012-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 275 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2012-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 392 square meters per square second.19395878Sfc1 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
275 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
509 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
392 m²/s²
0-3 km storm-relative helicity
473 m²/s²
Significant tornado parameter
0.5
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

853 
WFUS54 KLIX 290806
TORLIX
MSC059-290830-
/O.NEW.KLIX.TO.W.0047.120829T0806Z-120829T0830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
306 AM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  JACKSON COUNTY IN SOUTHERN MISSISSIPPI...
  THIS INCLUDES THE CITY OF ESCATAWPA...

* UNTIL 330 AM CDT

* AT 301 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  ESCATAWPA...MOVING NORTHWEST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WADE

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.

PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE
INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND
PHOTOS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

&&

LAT...LON 3042 8853 3074 8889 3074 8888 3074 8857
      3056 8839 3053 8840
TIME...MOT...LOC 0806Z 138DEG 46KT 3056 8854

$$

22/TD
1 follow-up statement
660 
WWUS54 KLIX 290826
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
326 AM CDT WED AUG 29 2012

MSC059-290837-
/O.EXP.KLIX.TO.W.0047.000000T0000Z-120829T0830Z/
JACKSON MS-
326 AM CDT WED AUG 29 2012

...THE TORNADO WARNING FOR JACKSON COUNTY WILL EXPIRE AT 330 AM
CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3042 8853 3074 8889 3074 8888 3074 8857
      3056 8839 3053 8840
TIME...MOT...LOC 0827Z 138DEG 46KT 3079 8879

$$

22/TD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 9:21 PM CDTRiver Flood WarningLIXPike, Walthall4 days
Aug 28, 9:37 PM CDTRiver Flood WarningLIXHancock, Pearl River11 days
Aug 28, 9:43 PM CDTRiver Flood WarningLIXHancock, Pearl River13 days
Aug 28, 9:47 PM CDTRiver Flood WarningLIXPearl River5 days
Aug 28, 9:53 PM CDTRiver Flood WarningLIXPearl River4 days
Aug 28, 9:58 PM CDTRiver Flood WarningLIXJackson6 days
Aug 28, 10:13 PM CDTRiver Flood WarningLIXHarrison4 days
Aug 29, 4:09 AM CDTTornado WarningLIXJackson21 min
Aug 29, 4:39 AM CDTFlash Flood WarningLIXJackson3 hr
Aug 29, 4:52 AM CDTTornado WarningLIXHancock, Harrison23 min
Aug 29, 4:55 AM CDTTornado WarningLIXJackson20 min
Aug 29, 5:18 AM CDTTornado WarningLIXJackson27 min
Aug 29, 5:36 AM CDTTornado WarningLIXJackson24 min
Aug 29, 6:20 AM CDTTornado WarningLIXHarrison25 min
Aug 29, 8:58 AM CDTTornado WarningLIXHancock, Harrison17 min
Aug 29, 9:15 AM CDTTornado WarningLIXHancock, Pearl River11 min
Aug 29, 10:49 AM CDTTornado WarningLIXHancock, Harrison, Pearl River26 min
Aug 29, 12:20 PM CDTTornado WarningLIXHancock, Harrison, Pearl River25 min
Aug 29, 12:28 PM CDTTornado WarningLIXHarrison32 min
Aug 29, 1:00 PM CDTTornado WarningLIXHarrison30 min
Aug 29, 1:20 PM CDTFlash Flood WarningLIXHarrison3 hr
Aug 29, 1:51 PM CDTFlash Flood WarningLIXPearl River, Walthall3 hr
Aug 29, 3:48 PM CDTTornado WarningLIXHarrison27 min
Aug 29, 4:15 PM CDTFlash Flood WarningLIXHarrison4 hr
Aug 29, 4:44 PM CDTFlash Flood WarningLIXPearl River, Walthall3 hr
Aug 29, 5:14 PM CDTTornado WarningLIXHarrison31 min
Aug 29, 6:30 PM CDTTornado WarningLIXHarrison30 min

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; radar from the NEXRAD Level II archive.