Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 28, NWS New Orleans, LA

March 22, 2012Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 22, 2012, 12:18 AM CDT for Harrison County, Jackson County, Mississippi. It was in force for 27 min. 2 reports 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
Mar 22, 2012, 12:18 AM CDT (05:18 UTC)
Expired
Mar 22, 2012, 12:45 AM CDT
In force
27 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 67 km from the middle of the area, began a volume at 05:20 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.

What was reported inside it

TimeReportWhereRemark
Mar 22, 12:25 AM CDTTSTM WND DMG5 Nnw Biloxi, MSALONG JOHN LEE ROAD AND ROBERTS ROAD...A 30 FOOT CAMPER WAS FLIPPED...TREES WERE TWISTED AND TOPPLED...THE ROOF OF A SHED WAS BLOWN OFF...AND A FENCE ANCHORED IN CEMENT WAS BLOWN DOWN. POSSIBLE TORNADO.
Mar 22, 12:35 AM CDTTORNADO 115 Nne Gulfport, MSNWS STORM SURVEY CONFIRMED A TORNADO TOUCHED DOWN ON JOHN LEE ROAD AND ROBERTS ROAD. TREES WERE TWISTED... A TRAVEL TRAILER WAS FLIPPED... AND SEVERAL HOMES LOST A PORTION OF THEIR ROOF. THE PATHWIDTH WAS 100 YARDS AND WAS ON THE GROUND FOR NEARLY 1 MILE. ESTI

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.

IssuedProductOfficeLasted
Mar 21, 6:02 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.3 hours before the alert went out and 83 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.

365 
WFUS54 KLIX 220518
TORLIX
MSC047-059-220545-
/O.NEW.KLIX.TO.W.0028.120322T0518Z-120322T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1218 AM CDT THU MAR 22 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN HARRISON COUNTY IN SOUTHERN MISSISSIPPI...
  THIS INCLUDES THE CITY OF BILOXI...
  NORTHWESTERN JACKSON COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 1245 AM CDT

* AT 1211 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BILOXI...
  MOVING NORTH AT 35 MPH.

* THE TORNADO WILL AFFECT AREAS AROUND BILOXI AND LOCATIONS NORTH OF 
  INTERSTATE 10 NORTH OF BILOXI. OTHERWISE THE TORNADO 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 SOUTHERN MISSISSIPPI.

&&

LAT...LON 3038 8891 3038 8897 3042 8911 3055 8908
      3068 8904 3068 8889 3073 8889 3074 8888
      3074 8877 3073 8876
TIME...MOT...LOC 0516Z 197DEG 30KT 3048 8898

$$
1 follow-up statement
073 
WWUS54 KLIX 220543
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1243 AM CDT THU MAR 22 2012

MSC047-059-220553-
/O.EXP.KLIX.TO.W.0028.000000T0000Z-120322T0545Z/
JACKSON MS-HARRISON MS-
1243 AM CDT THU MAR 22 2012

...THE TORNADO WARNING FOR EASTERN HARRISON AND NORTHWESTERN JACKSON
COUNTIES WILL EXPIRE AT 1245 AM CDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT THURSDAY MORNING
FOR SOUTHERN MISSISSIPPI.

LAT...LON 3038 8891 3038 8897 3042 8911 3055 8908
      3068 8904 3068 8889 3073 8889 3074 8888
      3074 8877 3073 8876
TIME...MOT...LOC 0543Z 197DEG 30KT 3061 8899

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 7:09 PM CDTTornado WarningLIXHancock, Harrison21 min
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, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.