Alert archive / Mississippi / Tornado Warnings in 2014

Tornado Warning 5, NWS New Orleans, LA

February 20, 2014Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Feb 20, 2014, 9:46 PM CST for Walthall County, Mississippi. It was in force for 14 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: Feb 20, 2014, 9:46 PM CST (03:46 UTC)
Expired: Feb 20, 2014, 10:00 PM CST
In force: 14 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County Walthall County, MS

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 20, 6:05 PM CST	Tornado Watch	SPC	7 hr
Feb 20, 7:22 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 3.8 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 384 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1582 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

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

684 
WFUS54 KLIX 210346
TORLIX
MSC147-210400-
/O.NEW.KLIX.TO.W.0005.140221T0346Z-140221T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
946 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

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

* UNTIL 1000 PM CST

* AT 942 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SALEM...OR
  18 MILES EAST OF MCCOMB...MOVING NORTHEAST AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL WALTHALL COUNTY AT 1000 PM CST

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...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 300 AM CST FRIDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3133 9007 3134 9004 3124 9004 3123 9005
      3119 9019 3133 9026 3135 9026 3136 9011
TIME...MOT...LOC 0346Z 246DEG 30KT 3131 9013

$$

1 follow-up statement

036 
WWUS54 KLIX 210359
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
959 PM CST THU FEB 20 2014

MSC147-210408-
/O.EXP.KLIX.TO.W.0005.000000T0000Z-140221T0400Z/
WALTHALL MS-
959 PM CST THU FEB 20 2014

...THE TORNADO WARNING FOR WALTHALL COUNTY WILL EXPIRE AT 1000 PM
CST...

THIS STORM HAS MOVED INTO SOUTHERN LAWRENCE COUNTY AND WAS WEAKENING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FRIDAY MORNING FOR
SOUTHEAST LOUISIANA AND SOUTHEASTERN MISSISSIPPI.

LAT...LON 3133 9007 3134 9004 3124 9004 3123 9005
      3119 9019 3133 9026 3135 9026 3136 9011
TIME...MOT...LOC 0358Z 246DEG 30KT 3135 9002

$$

24/RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 20, 6:38 PM CST	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	67 min
Feb 20, 6:44 PM CST	Severe Thunderstorm Warning	LIX	Walthall	31 min
Feb 20, 6:48 PM CST	Tornado Warning	LIX	Walthall	27 min
Feb 20, 6:57 PM CST	Severe Thunderstorm Warning	LIX	Amite, Pike	63 min
Feb 20, 7:12 PM CST	Tornado Warning	LIX	Walthall	18 min
Feb 20, 7:41 PM CST	Severe Thunderstorm Warning	LIX	Pike, Walthall	64 min
Feb 20, 8:43 PM CST	Areal Flood Advisory	LIX	Amite, Pearl River, Pike, Walthall, Wilkinson	67 days
Feb 20, 10:55 PM CST	Tornado Warning	LIX	Walthall	20 min
Feb 21, 4:27 AM CST	River Flood Warning	LIX	Pike	28 hr
Feb 21, 7:15 AM CST	River Flood Warning	LIX	Pike, Walthall	3 days
Feb 21, 10:01 AM CST	River Flood Warning	LIX	Pike, Walthall	33 hr

Nearby

Tornado Warnings in Mississippi, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.