Alert archive / Mississippi / Tornado Warnings in 2007

Tornado Warning 13, NWS New Orleans, LA

March 1, 2007Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 1, 2007, 12:24 PM CST for Walthall County, Mississippi. It was in force for 12 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 1, 2007, 12:24 PM CST (18:24 UTC)
Expired: Mar 1, 2007, 12:36 PM CST
In force: 12 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

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
Mar 1, 7:28 AM CST	Tornado Watch PDS	SPC	12 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.4 hours before the alert went out and 98 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: 1034 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 563 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 011824
TORLIX
MSC147-011900-
/O.NEW.KLIX.TO.W.0013.070301T1824Z-070301T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1224 PM CST THU MAR 1 2007

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

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

* UNTIL 100 PM CST

* AT 1221 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR DEXTER...OR
  ABOUT 16 MILES NORTHEAST OF FRANKLINTON...MOVING NORTHEAST AT 45
  MPH.

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

GET 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 600 PM CST THURSDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3110 9014 3101 9003 3103 8987 3118 9003

$$

1 follow-up statement

000 
WWUS54 KLIX 011836
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1236 PM CST THU MAR 1 2007

MSC147-011846-
/O.CAN.KLIX.TO.W.0013.000000T0000Z-070301T1900Z/
WALTHALL MS-
1236 PM CST THU MAR 1 2007

...THE TORNADO WARNING FOR WALTHALL COUNTY IS CANCELLED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS MOVED NORTHEAST OUT 
OF WALTHALL COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3110 9014 3101 9003 3103 8987 3118 9003

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 1:10 PM CST	Tornado Warning	LIX	Pearl River	35 min
Mar 1, 2:04 PM CST	Severe Thunderstorm Warning	LIX	Amite	26 min
Mar 1, 2:37 PM CST	Severe Thunderstorm Warning	LIX	Harrison, Jackson	23 min
Mar 1, 2:46 PM CST	Tornado Warning	LIX	Walthall	18 min
Mar 1, 3:00 PM CST	Severe Thunderstorm Warning	LIX	Harrison, Jackson	30 min
Mar 1, 3:07 PM CST	Tornado Warning	LIX	Jackson	23 min

Nearby

Tornado Warnings in Mississippi, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.