Alert archive / Mississippi / Tornado Warnings in 1998

Tornado Warning 36, NWS Jackson, MS

April 17, 1998Marion County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 17, 1998, 7:31 PM CDT for Marion County, Mississippi. It was in force for 49 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
Apr 17, 1998, 7:31 PM CDT (00:31 UTC)
Expired
Apr 17, 1998, 8:20 PM CDT
In force
49 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Marion County, MS

What was reported inside it

TimeReportWhereRemark
Apr 17, 7:45 PM CDTHail 1.75Columbia, MS
Apr 17, 7:45 PM CDTThunderstorm WindColumbia, MSNumerous trees were blown down.

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
Apr 17, 5:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.5 hours before the alert went out and 110 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 1998-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 624 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 1998-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 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
624 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
311 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

150 
WFUS1 KJAN 180032 RRA
TORJAN
MSC091-180120-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
731 PM CDT FRI APR 17 1998

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 820 PM CDT

* AT 727 PM CDT...A TORNADO NEAR KOKOMO OR 14 MILES SOUTHWEST OF
COLUMBIA...INDICATED BY JACKSON WEATHER SERVICE DOPPLER RADAR...
MOVING   NORTHEAST 55 MPH.

* THE FOLLOWING LOCATION IS IN THE PATH OF THIS DANGEROUS STORM...
  KOKOMO                      PEOPLE TAKE COVER NOW
  COLUMBIA                    BY 740 PM CDT

IF YOU ARE IN A MULTIPLE STORY BUILDING...GO TO A SMALL INTERIOR
ROOM AWAY FROM WINDOWS.

75

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 7:12 PM CDTSevere Thunderstorm WarningJANForrest33 min
Apr 17, 7:51 PM CDTSevere Thunderstorm WarningJANLamar44 min
Apr 17, 8:04 PM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jones51 min
Apr 17, 8:41 PM CDTSevere Thunderstorm WarningJANClarke, Jasper49 min
Apr 17, 9:56 PM CDTSevere Thunderstorm WarningJANJefferson Davis, Lawrence49 min
Apr 17, 10:19 PM CDTSevere Thunderstorm WarningJANSimpson, Smith36 min
Apr 17, 10:45 PM CDTSevere Thunderstorm WarningJANFranklin, Lincoln50 min
Apr 17, 10:54 PM CDTSevere Thunderstorm WarningJANJasper36 min
Apr 17, 11:30 PM CDTSevere Thunderstorm WarningJANClarke, Lauderdale50 min
Apr 18, 12:11 AM CDTSevere Thunderstorm WarningJANSmith34 min
Apr 18, 12:38 AM CDTSevere Thunderstorm WarningJANJasper, Newton32 min
Apr 18, 1:07 AM CDTSevere Thunderstorm WarningJANLauderdale48 min
Apr 18, 6:06 AM CDTSevere Thunderstorm WarningJANLincoln49 min
Apr 18, 6:24 AM CDTSevere Thunderstorm WarningJANRankin, Simpson46 min
Apr 18, 7:13 AM CDTSevere Thunderstorm WarningJANRankin, Simpson47 min
Apr 18, 7:35 AM CDTSevere Thunderstorm WarningJANSmith35 min
Apr 18, 7:56 AM CDTSevere Thunderstorm WarningJANCopiah34 min
Apr 18, 8:07 AM CDTSevere Thunderstorm WarningJANSimpson33 min
Apr 18, 8:09 AM CDTSevere Thunderstorm WarningJANNewton36 min
Apr 18, 8:21 AM CDTSevere Thunderstorm WarningJANRankin34 min
Apr 18, 8:32 AM CDTSevere Thunderstorm WarningJANLauderdale33 min
Apr 18, 8:44 AM CDTSevere Thunderstorm WarningJANScott, Smith51 min
Apr 18, 8:47 AM CDTSevere Thunderstorm WarningJANCopiah33 min
Apr 18, 8:51 AM CDTSevere Thunderstorm WarningJANFranklin34 min
Apr 18, 8:52 AM CDTSevere Thunderstorm WarningJANKemper33 min
Apr 18, 9:05 AM CDTSevere Thunderstorm WarningJANHinds20 min
Apr 18, 9:20 AM CDTSevere Thunderstorm WarningJANRankin50 min
Apr 18, 10:03 AM CDTSevere Thunderstorm WarningJANCopiah, Rankin, Simpson47 min
Apr 18, 12:20 PM CDTSevere Thunderstorm WarningJANJefferson Davis, Simpson45 min
Apr 18, 2:11 PM CDTSevere Thunderstorm WarningJANForrest60 min
Apr 18, 3:28 PM CDTSevere Thunderstorm WarningJANJefferson Davis, Lawrence32 min

Nearby

Tornado Warnings in Mississippi, 1998Every tornado warning in 1998Tornadoes in 1998

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.