Alert archive / Louisiana / Tornado Warnings in 2008

Tornado Warning 21, NWS New Orleans, LA

February 12, 2008Washington Parish, Louisiana; Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Feb 12, 2008, 1:54 PM CST for Washington Parish, Louisiana; Walthall 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
Feb 12, 2008, 1:54 PM CST (19:54 UTC)
Expired
Feb 12, 2008, 2:15 PM CST
In force
21 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Washington Parish, LA, Walthall County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 12, 10:25 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.9 hours before the alert went out and 94 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 2008-02-12Temperature 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 2008-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
1161 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 121953
TORLIX
LAC117-MSC147-122015-
/O.NEW.KLIX.TO.W.0021.080212T1954Z-080212T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
154 PM CST TUE FEB 12 2008

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL WASHINGTON PARISH IN SOUTHEAST LOUISIANA...
  SOUTHEASTERN WALTHALL COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 215 PM CST

* AT 153 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR DEXTER...OR
  ABOUT 16 MILES SOUTHWEST OF COLUMBIA...MOVING NORTHEAST AT 50 MPH.

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

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 400 PM CST TUESDAY AFTERNOON
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING FOR SOUTHERN
MISSISSIPPI.

LAT...LON 3109 8990 3109 8984 3107 8981 3102 8981
      3092 9002 3109 9011 3116 8997 3116 8994
TIME...MOT...LOC 1954Z 241DEG 43KT 3106 8996

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 12, 11:50 AM CSTTornado WarningLIXJefferson, Lafourche, Plaquemines25 min
Feb 12, 11:56 AM CSTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana47 min
Feb 12, 12:11 PM CSTTornado WarningLIXJefferson, Plaquemines34 min
Feb 12, 12:27 PM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Saint Helena, Tangipahoa48 min
Feb 12, 12:46 PM CSTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard29 min
Feb 12, 12:48 PM CSTSpecial Marine WarningLIX87 min
Feb 12, 12:55 PM CSTSevere Thunderstorm WarningLIXEast Feliciana, Saint Helena, Tangipahoa35 min
Feb 12, 1:09 PM CSTTornado WarningLIXSaint Helena, Tangipahoa36 min
Feb 12, 1:15 PM CSTTornado WarningLIXPlaquemines, Saint Bernard30 min
Feb 12, 1:40 PM CSTTornado WarningLIXSaint Tammany, Tangipahoa, Washington35 min
Feb 12, 1:42 PM CSTSevere Thunderstorm WarningLIXTangipahoa, Washington48 min
Feb 12, 1:46 PM CSTSpecial Marine WarningLIX89 min
Feb 12, 1:50 PM CSTSevere Thunderstorm WarningLIXLivingston, Saint Tammany, Tangipahoa40 min
Feb 12, 2:13 PM CSTTornado WarningLIXSaint Tammany, Washington32 min
Feb 12, 2:22 PM CSTSpecial Marine WarningLIX83 min
Feb 12, 2:26 PM CSTSevere Thunderstorm WarningLIXJefferson, Orleans, Saint Charles34 min
Feb 12, 2:30 PM CSTSevere Thunderstorm WarningLIXSaint Tammany60 min
Feb 12, 2:35 PM CSTSevere Thunderstorm WarningLIXAssumption, Lafourche, Saint James, Saint John the Baptist25 min
Feb 12, 2:51 PM CSTSevere Thunderstorm WarningLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 1 more41 min
Feb 12, 3:10 PM CSTSevere Thunderstorm WarningLIXTerrebonne35 min
Feb 12, 3:20 PM CSTSpecial Marine WarningLIX85 min
Feb 12, 3:29 PM CSTSpecial Marine WarningLIX91 min
Feb 12, 4:20 PM CSTSevere Thunderstorm WarningLIXPlaquemines40 min
Feb 12, 4:46 PM CSTSpecial Marine WarningLIX89 min
Feb 12, 5:52 PM CSTSpecial Marine WarningLIX38 min
Feb 12, 1:26 PM CSTTornado WarningLIXPike, Walthall34 min
Feb 12, 2:32 PM CSTSevere Thunderstorm WarningLIXPearl River13 min
Feb 12, 2:45 PM CSTTornado WarningLIXHancock, Pearl River15 min
Feb 12, 3:00 PM CSTTornado WarningLIXHancock, Harrison, Pearl River15 min
Feb 12, 3:15 PM CSTSevere Thunderstorm WarningLIXHancock, Harrison, Jackson45 min
Feb 12, 3:55 PM CSTSevere Thunderstorm WarningLIXJackson20 min

Nearby

Tornado Warnings in Louisiana, 2008Tornado Warnings in Mississippi, 2008Every tornado warning in 2008Tornadoes in 2008

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.