Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 162, NWS Jackson, MS

December 12, 2001Madison Parish, Louisiana; Warren County, Mississippi

NWS Jackson, MS issued this tornado warning at Dec 12, 2001, 4:15 PM CST for Madison Parish, Louisiana; Warren County, Mississippi. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Dec 12, 2001, 4:15 PM CST (22:15 UTC)
Expired
Dec 12, 2001, 5:00 PM CST
In force
45 min
Issued by
NWS Jackson, MS
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Madison Parish, LA, Warren County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Dec 12, 3:45 PM CSTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.3 hours before the alert went out and 85 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 2001-12-12Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2001-12-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 286 square meters per square second.1939587897Sfc1 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
1218 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
325 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 KJAN 122216
TORJAN
LAC065-MSC149-122300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
415 PM CST WED DEC 12 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  MADISON PARISH IN NORTHEAST LOUISIANA
  WARREN COUNTY IN WEST CENTRAL MISSISSIPPI

* UNTIL 500 PM CST

* AT 415 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13 MILES SOUTHWEST   
  OF VICKSBURG...MOVING NORTHEAST AT 30 MPH. ANOTHER THUNDERSTORM    
  CAPABLE OF PRODUCING A TORNADO WAS 7 MILES NORTHEAST OF VICKSBURG. 
  BOTH STORMS WERE MOVING NORTHEAST AT 40 MPH.

DOPPLER RADAR INDICATED A TORNADO MAY FORM AT ANY TIME. TAKE COVER
NOW. ABANDON MOBILE HOMES AND VEHICLES. MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR.

LAT...LON 3229 9120 3213 9111 3232 9071 3253 9072

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 12, 12:57 PM CSTFlash Flood WarningJANMorehouse2 hr
Dec 12, 1:55 PM CSTTornado WarningJANCatahoula50 min
Dec 12, 2:27 PM CSTTornado WarningJANFranklin, Tensas63 min
Dec 12, 3:00 PM CSTFlash Flood WarningJANMorehouse2 hr
Dec 12, 3:20 PM CSTTornado WarningJANMadison55 min
Dec 12, 3:30 PM CSTTornado WarningJANTensas45 min
Dec 12, 4:26 PM CSTTornado WarningJANHinds34 min
Dec 12, 4:50 PM CSTTornado WarningJANMadison, Yazoo55 min

Nearby

Tornado Warnings in Louisiana, 2001Tornado Warnings in Mississippi, 2001Every tornado warning in 2001Tornadoes in 2001

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.