Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 21, NWS New Orleans, LA

June 15, 2003Tangipahoa Parish, Washington Parish, Louisiana; Pike County, Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Jun 15, 2003, 3:26 PM CDT for Tangipahoa Parish, Washington Parish, Louisiana; Pike County, Walthall County, Mississippi. It was in force for 34 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
Jun 15, 2003, 3:26 PM CDT (20:26 UTC)
Expired
Jun 15, 2003, 4:00 PM CDT
In force
34 min
Issued by
NWS New Orleans, LA
Area
Counties, with a storm outline in the text

Counties Tangipahoa Parish, LA, Washington Parish, LA, Pike County, MS, Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.4 hours before the alert went out and 102 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 2003-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1763 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 12:00Z on 2003-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
1763 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
51 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.

981 
WFUS54 KLIX 152026
TORNEW
LAC105-117-MSC113-147-152100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
325 PM CDT SUN JUN 15 2003

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  TANGIPAHOA PARISH IN SOUTHEAST LOUISIANA
  WASHINGTON PARISH IN SOUTHEAST LOUISIANA
  PIKE COUNTY IN SOUTHERN MISSISSIPPI
  WALTHALL COUNTY IN SOUTHERN MISSISSIPPI

* UNTIL 400 PM CDT

* AT 322 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES NORTHWEST OF
  WILMER...OR ABOUT 13 MILES NORTHEAST OF AMITE...MOVING NORTHEAST AT
  15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   MOUNT HERMAN AT 350 PM CDT

SEEK SHELTER ON THE LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY
OR ROOM SUCH AS A CLOSET OR BATHROOM.

IF IN MOBILE HOMES OR VECHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

LAT...LON 3091 9055 3078 9041 3099 9012 3115 9030

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 1:09 PM CDTTornado WarningLIXPointe Coupee, West Feliciana21 min
Jun 15, 1:35 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, Livingston, West Baton Rouge40 min
Jun 15, 2:07 PM CDTSevere Thunderstorm WarningLIXIberville, Pointe Coupee, West Feliciana38 min
Jun 15, 2:15 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena45 min
Jun 15, 2:59 PM CDTSevere Thunderstorm WarningLIXSaint Helena, Tangipahoa46 min
Jun 15, 3:51 PM CDTSpecial Marine WarningLIX84 min
Jun 15, 4:04 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Tammany, Tangipahoa, Washington56 min
Jun 15, 4:10 PM CDTSpecial Marine WarningLIX2 hr
Jun 15, 4:58 PM CDTSevere Thunderstorm WarningLIXSaint Tammany, Washington62 min
Jun 15, 5:08 PM CDTSpecial Marine WarningLIX52 min
Jun 15, 2:48 PM CDTFlash Flood WarningLIXAmite, Pike3 hr

Nearby

Tornado Warnings in Louisiana, 2003Tornado Warnings in Mississippi, 2003Every tornado warning in 2003Tornadoes in 2003

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.