Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 32, NWS New Orleans, LA

March 22, 2012Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 22, 2012, 8:45 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 30 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
Mar 22, 2012, 8:45 PM CDT (01:45 UTC)
Expired
Mar 22, 2012, 9:15 PM CDT
In force
30 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 56 km from the middle of the area, began a volume at 01:47 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.8 hours before the alert went out and 95 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 2012-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 00:00Z on 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 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
151 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

760 
WFUS54 KLIX 230145
TORLIX
MSC047-059-230215-
/O.NEW.KLIX.TO.W.0032.120323T0145Z-120323T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
845 PM CDT THU MAR 22 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HARRISON COUNTY IN SOUTHERN MISSISSIPPI...
  NORTHWESTERN JACKSON COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 915 PM CDT

* AT 842 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER JACKSON
  COUNTY...OR 10 MILES NORTH OF ST. MARTIN...MOVING NORTHEAST AT 25
  MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DESTRUCTIVE STRAIGHT LINE WINDS.

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.

&&

LAT...LON 3046 8889 3061 8901 3069 8890 3068 8889
      3070 8889 3074 8883 3074 8857 3067 8851
TIME...MOT...LOC 0145Z 234DEG 22KT 3059 8886

$$

22/TD
2 follow-up statements
966 
WWUS54 KLIX 230157
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
857 PM CDT THU MAR 22 2012

MSC047-230205-
/O.CAN.KLIX.TO.W.0032.000000T0000Z-120323T0215Z/
HARRISON MS-
857 PM CDT THU MAR 22 2012

...THE TORNADO WARNING FOR NORTHEASTERN HARRISON COUNTY IS
CANCELLED...

AT 851 PM CDT...THE THUNDERSTORM WITH THE POSSIBLE TORNADO HAD MOVED 
OUT OF HARRISON COUNTY. 

LAT...LON 3069 8855 3055 8888 3067 8888 3070 8889
      3074 8883 3074 8857
TIME...MOT...LOC 0155Z 230DEG 21KT 3064 8883

$$

MSC059-230215-
/O.CON.KLIX.TO.W.0032.000000T0000Z-120323T0215Z/
JACKSON MS-
857 PM CDT THU MAR 22 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHWESTERN JACKSON COUNTY...

AT 851 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED 
13 MILES NORTH OF ST. MARTIN...MOVING NORTHEAST AT 25 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.

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.

&&

LAT...LON 3069 8855 3055 8888 3067 8888 3070 8889
      3074 8883 3074 8857
TIME...MOT...LOC 0155Z 230DEG 21KT 3064 8883

$$

22/TD
111 
WWUS54 KLIX 230212
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
912 PM CDT THU MAR 22 2012

MSC059-230221-
/O.EXP.KLIX.TO.W.0032.000000T0000Z-120323T0215Z/
JACKSON MS-
912 PM CDT THU MAR 22 2012

...THE TORNADO WARNING FOR NORTHWESTERN JACKSON COUNTY WILL EXPIRE AT
915 PM CDT...

THE THUNDERSTORM AND STORM ROTATION HAVE WEAKENED AND THE WARNING 
WILL BE ALLOWED TO EXPIRE. 

LAT...LON 3069 8855 3055 8888 3067 8888 3070 8889
      3074 8883 3074 8857
TIME...MOT...LOC 0211Z 230DEG 21KT 3070 8875

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 8:36 PM CDTSevere Thunderstorm WarningLIXHarrison, Jackson39 min
Mar 23, 2:29 AM CDTTornado WarningLIXHancock46 min
Mar 23, 3:07 AM CDTTornado WarningLIXHancock, Harrison38 min
Mar 23, 3:51 AM CDTRiver Flood WarningLIXHancock49 hr
Mar 23, 5:21 AM CDTAreal Flood AdvisoryLIXHancock114 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.