Alert archive / Mississippi / Tornado Warnings in 2013

Tornado Warning 9, NWS New Orleans, LA

January 13, 2013Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Jan 13, 2013, 2:57 PM CST for Walthall County, Mississippi. It was in force for 18 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
Jan 13, 2013, 2:57 PM CST (20:57 UTC)
Expired
Jan 13, 2013, 3:15 PM CST
In force
18 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

County Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.0 hours before the alert went out and 108 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 12:00Z on 2013-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2013-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
795 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

121 
WFUS54 KLIX 132057
TORLIX
MSC147-132115-
/O.NEW.KLIX.TO.W.0009.130113T2057Z-130113T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
257 PM CST SUN JAN 13 2013

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL WALTHALL COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 315 PM CST

* AT 255 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  TYLERTOWN...OR 19 MILES NORTH OF FRANKLINTON...MOVING NORTHEAST AT
  40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SALEM BY 305 PM CST...

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.

&&

LAT...LON 3124 9004 3123 9002 3118 9002 3117 9000
      3114 9000 3114 8994 3112 8993 3109 9013
      3116 9019 3129 9004
TIME...MOT...LOC 2057Z 240DEG 36KT 3114 9013

$$


24/RR
1 follow-up statement
170 
WWUS54 KLIX 132109
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
309 PM CST SUN JAN 13 2013

MSC147-132119-
/O.EXP.KLIX.TO.W.0009.000000T0000Z-130113T2115Z/
WALTHALL MS-
309 PM CST SUN JAN 13 2013

...THE TORNADO WARNING FOR CENTRAL WALTHALL COUNTY WILL EXPIRE AT 315
PM CST...

THIS STORM WAS WEAKENING WHILE EXITING WALTHALL COUNTY. 

LAT...LON 3124 9004 3123 9002 3118 9002 3117 9000
      3114 9000 3114 8994 3112 8993 3109 9013
      3116 9019 3129 9004
TIME...MOT...LOC 2109Z 240DEG 36KT 3120 9001

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 13, 4:23 AM CSTFlash Flood WatchLIXAmite, Pike, Walthall, Wilkinson26 hr
Jan 13, 1:50 PM CSTSevere Thunderstorm WarningLIXAmite, Pike, Walthall55 min
Jan 13, 2:21 PM CSTTornado WarningLIXPike, Walthall24 min
Jan 13, 2:42 PM CSTTornado WarningLIXPike, Walthall18 min

Nearby

Tornado Warnings in Mississippi, 2013Every tornado warning in 2013Tornadoes in 2013

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.