Alert archive / Louisiana / Tornado Warnings in 1999

Tornado Warning 2, NWS Jackson, MS

January 8, 1999West Carroll Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Jan 8, 1999, 3:26 PM CST for West Carroll Parish, Louisiana. It was in force for 34 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jan 8, 1999, 3:26 PM CST (21:26 UTC)
Expired: Jan 8, 1999, 4:00 PM CST
In force: 34 min
Issued by: NWS Jackson, MS
Area: Whole counties

County West Carroll Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jan 8, 3:38 PM CST	Tornado F0	Oak Grove, LA	A trained spotter viewed this short-track tornado. Minor structural damage was done to a couple of dwellings.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jan 8, 3:00 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.4 hours before the alert went out and 217 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: 1083 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

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

999 
WFUS1 KJAN 082127 RRA
TORJAN
LAC123-082200-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
326 PM CST FRI JAN 8 1999

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 400 PM CST

* AT 325 PM CST... RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 11 MILES WEST OF OAK GROVE... MOVING EAST AT
  40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS DANGEROUS STORM INCLUDE...
  OAK GROVE AT 340 PM CST
  KILBOURNE AT 350 PM CST

ABANDON MOBILE HOMES GO IN A NEARBY STURDY BUILDING. AS A LAST
RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD.

67

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 8, 3:12 PM CST	Severe Thunderstorm Warning	JAN	Morehouse	33 min
Jan 8, 3:22 PM CST	Severe Thunderstorm Warning	JAN	West Carroll	33 min
Jan 8, 3:43 PM CST	Tornado Warning	JAN	Morehouse	47 min
Jan 8, 3:47 PM CST	Tornado Warning	JAN	East Carroll	33 min
Jan 8, 4:26 PM CST	Tornado Warning	JAN	Richland, West Carroll	34 min
Jan 8, 4:58 PM CST	Tornado Warning	JAN	East Carroll	32 min
Jan 8, 5:58 PM CST	Tornado Warning	JAN	Morehouse	47 min

Nearby

Tornado Warnings in Louisiana, 1999 Every tornado warning in 1999 Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.