Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 145, NWS Jackson, MS

May 7, 2003West Carroll Parish, Louisiana

NWS Jackson, MS issued this tornado warning at May 7, 2003, 10:59 AM CDT for West Carroll Parish, Louisiana. 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
May 7, 2003, 10:59 AM CDT (15:59 UTC)
Expired
May 7, 2003, 11:20 AM CDT
In force
21 min
Issued by
NWS Jackson, MS
Area
Counties, with a storm outline in the text

County West Carroll Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
May 7, 4:55 AM CDTTornado WatchSPC6 hr
May 7, 10:50 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.0 hours before the alert went out and 138 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, Jackson, MS at 12:00Z on 2003-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1680 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2003-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 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
1680 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 071559
TORJAN
LAC123-071620-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1059 AM CDT WED MAY 7 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CARROLL PARISH IN NORTHEAST LOUISIANA

* UNTIL 1120 AM CDT

* AT 1059 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 4 MILES SOUTHWEST OF PIONEER...OR ABOUT 20 MILES SOUTHWEST
  OF LAKE PROVIDENCE...MOVING EAST AT 50 MPH.

* THE TORNADO IS EXPECTED TO...
  BE NEAR FOREST AT 1100 AM CDT

IF NO UNDERGROUND SHELTER IS AVAILABLE...GO TO AN INTERIOR ROOM ON
THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES ARE NOT SAFE.

LAT...LON 3279 9154 3261 9153 3262 9141 3280 9134

$$

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 6, 7:02 PM CDTSevere Thunderstorm WarningJANMadison28 min
May 7, 6:08 AM CDTSevere Thunderstorm WarningJANMorehouse, Richland62 min
May 7, 6:36 AM CDTTornado WarningJANRichland39 min
May 7, 7:08 AM CDTSevere Thunderstorm WarningJANWest Carroll47 min
May 7, 7:14 AM CDTTornado WarningJANRichland26 min
May 7, 7:39 AM CDTTornado WarningJANEast Carroll, West Carroll46 min
May 7, 10:37 AM CDTSevere Thunderstorm WarningJANEast Carroll33 min
May 7, 10:38 AM CDTSevere Thunderstorm WarningJANMorehouse, West Carroll47 min
May 7, 11:09 AM CDTSevere Thunderstorm WarningJANEast Carroll31 min
May 7, 11:22 AM CDTTornado WarningJANEast Carroll23 min

Nearby

Tornado Warnings in Louisiana, 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.