Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 25, NWS New Orleans, LA

March 21, 2012Hancock County, Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 21, 2012, 7:09 PM CDT for Hancock County, Harrison County, Mississippi. It was in force for 21 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 21, 2012, 7:09 PM CDT (00:09 UTC)
Expired
Mar 21, 2012, 7:30 PM CDT
In force
21 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Hancock County, MS, Harrison County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 21, 6:02 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.2 hours before the alert went out and 35 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 2012-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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 2012-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.193958Sfc1 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
131 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

128 
WFUS54 KLIX 220009
TORLIX
MSC045-047-220030-
/O.NEW.KLIX.TO.W.0025.120322T0009Z-120322T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
709 PM CDT WED MAR 21 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HANCOCK COUNTY IN SOUTHERN MISSISSIPPI...
  THIS INCLUDES THE CITY OF DIAMONDHEAD...
  WEST CENTRAL HARRISON COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 730 PM CDT

* AT 705 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR KILN...OR 6
  MILES SOUTHWEST OF DIAMONDHEAD...MOVING NORTH AT 40 MPH.

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

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 THURSDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

&&

LAT...LON 3031 8938 3035 8955 3064 8950 3064 8928
TIME...MOT...LOC 0009Z 189DEG 35KT 3039 8945

$$
1 follow-up statement
707 
WWUS54 KLIX 220034
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
734 PM CDT WED MAR 21 2012

MSC045-047-220044-
/O.EXP.KLIX.TO.W.0025.000000T0000Z-120322T0030Z/
HANCOCK MS-HARRISON MS-
734 PM CDT WED MAR 21 2012

...THE TORNADO WARNING FOR WEST CENTRAL HARRISON AND NORTHEASTERN
HANCOCK COUNTIES HAS EXPIRED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3031 8938 3035 8955 3064 8950 3064 8928
TIME...MOT...LOC 0009Z 189DEG 35KT 3039 8945

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 7:29 PM CDTFlash Flood WarningLIXHancock, Pearl River3 hr
Mar 21, 8:19 PM CDTTornado WarningLIXHancock, Harrison26 min
Mar 21, 8:34 PM CDTRiver Flood WarningLIXHancock, Pearl River20 days
Mar 21, 8:58 PM CDTFlash Flood WarningLIXHarrison3 hr
Mar 21, 10:08 PM CDTTornado WarningLIXHarrison26 min
Mar 21, 11:13 PM CDTAreal Flood WarningLIXHancock4 hr
Mar 21, 11:54 PM CDTFlash Flood WarningLIXHarrison2 hr
Mar 22, 12:18 AM CDTTornado WarningLIXHarrison, Jackson27 min
Mar 22, 1:34 AM CDTRiver Flood WarningLIXHarrison4 days
Mar 22, 1:34 AM CDTRiver Flood WarningLIXHarrison4 days
Mar 22, 2:00 AM CDTFlash Flood WarningLIXHarrison3 hr
Mar 22, 4:52 AM CDTTornado WarningLIXHarrison, Jackson23 min
Mar 22, 7:01 AM CDTTornado WarningLIXJackson29 min
Mar 22, 8:10 AM CDTFlash Flood WarningLIXJackson3 hr
Mar 22, 9:44 AM CDTTornado WarningLIXJackson31 min
Mar 22, 10:51 AM CDTRiver Flood WarningLIXHarrison55 hr
Mar 22, 10:56 AM CDTRiver Flood WarningLIXJackson10 days
Mar 22, 2:03 PM CDTRiver Flood WarningLIXHarrison42 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.