Alert archive / Mississippi / Tornado Warnings in 1999

Tornado Warning 14, NWS New Orleans, LA

January 22, 1999Walthall County, Mississippi

NWS New Orleans, LA issued this tornado warning at Jan 22, 1999, 5:18 PM CST for Walthall County, Mississippi. It was in force for 32 min. 2 reports 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 22, 1999, 5:18 PM CST (23:18 UTC)
Expired: Jan 22, 1999, 5:50 PM CST
In force: 32 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Walthall County, MS

What was reported inside it

Time	Report	Where	Remark
Jan 22, 5:35 PM CST	Thunderstorm Wind	Tylertown, MS	A storm spotter reported shingles blown off a roof of a house.
Jan 22, 5:35 PM CST	Hail 0.75	Tylertown, MS	A storm spotter reported dime size hail.

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 22, 2:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 107 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: 1281 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 515 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 386 m²/s²
0-3 km storm-relative helicity: 445 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 12.2

Open this sounding in Storm Lab

The text

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

999 
WFUS1 KNEW 222315 RRA
TORNEW
MSC147-222350-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
518 PM CST FRI JAN 22 1999

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A...

* TORNADO WARNING FOR
   - WALTHALL COUNTY IN SOUTHERN MISSISSIPPI

* UNTIL 550 PM CST

* AT 514 PM CST... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  PRODUCING A TORNADO NEAR OSYKA AND GILLSBURG IN SOUTH PIKE COUNTY.
  THE PIKE COUNTY CIVIL DEFENSE REPORTED A TORNADO TOUCHDOWN
  BETWEEN THESE TWO COMMUNITIES. THIS STORM WAS MOVING TO THE
  NORTHEAST AT 45 MPH.

* THE STORM WILL AFFECT AREAS AROUND TYLERTOWN.

IF YOU ARE IN THESE AREAS...SEEK SHELTER IN A SMALL INTERIOR ROOM
AWAY FROM WINDOWS

IF YOU ARE IN THE PATH OF A TORNADO...GET UNDER A WORKBENCH OR PIECE
OF STURDY FURNITURE. SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A
CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...OR CUSHIONS TO
COVER YOUR BODY.  AVOID WINDOWS.

&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 2:50 PM CST	Severe Thunderstorm Warning	LIX	Wilkinson	30 min
Jan 22, 3:06 PM CST	Tornado Warning	LIX	Wilkinson	34 min
Jan 22, 4:40 PM CST	Severe Thunderstorm Warning	LIX	Amite, Pike	45 min
Jan 22, 5:07 PM CST	Tornado Warning	LIX	Pike	33 min

Nearby

Tornado Warnings in Mississippi, 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.