Alert archive / Mississippi / Tornado Warnings in 1999

Tornado Warning 95, NWS Jackson, MS

January 29, 1999Lamar County, Mississippi

NWS Jackson, MS issued this tornado warning at Jan 29, 1999, 9:44 PM CST for Lamar County, Mississippi. It was in force for 31 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 29, 1999, 9:44 PM CST (03:44 UTC)
Expired
Jan 29, 1999, 10:15 PM CST
In force
31 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Lamar County, MS

What was reported inside it

TimeReportWhereRemark
Jan 29, 9:50 PM CSTThunderstorm WindCountywide, MSNumerous trees were blown down across the county.

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.

IssuedProductOfficeLasted
Jan 29, 6:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.7 hours before the alert went out and 108 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 00:00Z on 1999-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 774 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, Slidell Radar S, LA at 00:00Z on 1999-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 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
774 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 300344 RRA
TORJAN
MSC073-300415-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
944 PM CST FRI JAN 29 1999

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  LAMAR COUNTY IN SOUTHEASTERN MISSISSIPPI

* UNTIL 1015 PM CST

* AT 944 PM CST... RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 10 MILES NORTHWEST OF PURVIS OR 10 MILES
  SOUTH OF SUMRALL... MOVING EAST AT 30 MPH.

THIS STORM WILL MAINLY AFFECT SMALLER COMMUNITIES AND RURAL AREAS
ALONG HIGHWAY 98...AND WILL APPROACH INTERSTATE 59 BY 1015 PM.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

74

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jan 29, 6:18 PM CST, 3 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
618 PM CST FRI JAN 29 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0605 PM    BROOKHAVEN                MS   .75 INCH HAIL
01/29/99   LINCOLN                        DIME SIZE HAIL REPORTED BY
                                          CIVIL DEFENSE.

0600 PM    2 W BROOKHAVEN            MS   .75 INCH HAIL
01/29/99   LINCOLN                        DIME SIZE REPORTED BY
                                          CIVIL DEFENSE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 6:50 PM CSTSevere Thunderstorm WarningJANLamar50 min
Jan 29, 7:38 PM CSTSevere Thunderstorm WarningJANForrest47 min
Jan 29, 8:23 PM CSTSevere Thunderstorm WarningJANMarion52 min
Jan 29, 9:15 PM CSTSevere Thunderstorm WarningJANLamar60 min
Jan 29, 9:29 PM CSTFlash Flood WarningJANAdams, Jefferson5 hr
Jan 29, 9:58 PM CSTTornado WarningJANForrest47 min
Jan 29, 10:42 PM CSTFlash Flood WarningJANClarke2 hr
Jan 29, 10:42 PM CSTFlash Flood WarningJANJones2 hr
Jan 29, 11:00 PM CSTFlash Flood WarningJANForrest, Lamar, Marion3 hr
Jan 30, 1:50 AM CSTFlash Flood WarningJANLamar, Marion2 hr
Jan 30, 1:50 AM CSTFlash Flood WarningJANForrest2 hr
Jan 30, 8:47 AM CSTFlash Flood WarningJANClaiborne, Copiah, Hinds, Jefferson2 hr
Jan 30, 8:47 AM CSTFlash Flood WarningJANMadison, Rankin2 hr
Jan 30, 10:21 AM CSTSevere Thunderstorm WarningJANLincoln29 min
Jan 30, 10:44 AM CSTSevere Thunderstorm WarningJANLawrence, Simpson46 min
Jan 30, 11:09 AM CSTFlash Flood WarningJANLawrence, Rankin, Simpson, Smith2 hr
Jan 30, 11:09 AM CSTFlash Flood WarningJANNeshoba, Newton, Scott2 hr
Jan 30, 12:17 PM CSTFlash Flood WarningJANClarke, Jasper, Kemper, Lauderdale3 hr
Jan 30, 1:15 PM CSTSevere Thunderstorm WarningJANSimpson, Smith30 min
Jan 30, 4:41 PM CSTSevere Thunderstorm WarningJANJones49 min
Jan 30, 5:00 PM CSTSevere Thunderstorm WarningJANLauderdale, Newton50 min
Jan 30, 5:09 PM CSTSevere Thunderstorm WarningJANClarke, Jasper66 min

Nearby

Tornado Warnings in Mississippi, 1999Every tornado warning in 1999Tornadoes 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.