Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 79, NWS Jackson, MS

March 6, 1998Winston County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 6, 1998, 10:39 PM CST for Winston County, Mississippi. It was in force for 51 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
Mar 6, 1998, 10:39 PM CST (04:39 UTC)
Expired
Mar 6, 1998, 11:30 PM CST
In force
51 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Winston County, MS

The radar

The Columbus AFB radar (KGWX), 111 km from the middle of the area, began a volume at 04:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 6, 10:50 PM CSTHail 0.75Noxapater, MS

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 nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.7 hours before the alert went out and 130 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 00:00Z on 1998-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 401 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1998-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939587897117136Sfc1 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
401 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

927 
WUUS1 KJAN 070440 RRA
SVRJAN
MSC159-070530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1039 PM CST FRI MAR 6 1998
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSISSIPPI
 
   ...WINSTON COUNTY
 
AT 1040 PM JACKSON RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
SOUTHWEST OF NOXAPATER MOVING NORTHEAST AT 30 MPH. THE STORM WILL AFFECT
NOXAPATER BY 1050 PM AND AREAS SOUTHEAST OF LOUISVILLE BY 11 PM.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...AND DEADLY LIGHTNING.
PEOPLE OUTSIDE SHOULD SEEK SHELTER INSIDE A STRONG BUILDING.
<
 
74

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 10:30 PM CSTSevere Thunderstorm WarningJANNeshoba45 min
Mar 6, 11:20 PM CSTSevere Thunderstorm WarningJANOktibbeha55 min
Mar 7, 12:25 AM CSTSevere Thunderstorm WarningJANWarren50 min
Mar 7, 2:00 AM CSTSevere Thunderstorm WarningJANLeflore45 min
Mar 7, 3:09 AM CSTSevere Thunderstorm WarningJANCopiah51 min
Mar 7, 3:52 AM CSTSevere Thunderstorm WarningJANSimpson53 min
Mar 7, 4:10 AM CSTSevere Thunderstorm WarningJANCovington, Jefferson Davis50 min
Mar 7, 4:25 AM CSTSevere Thunderstorm WarningJANSmith50 min
Mar 7, 4:35 AM CSTSevere Thunderstorm WarningJANFranklin, Lincoln40 min
Mar 7, 4:40 AM CSTSevere Thunderstorm WarningJANLamar50 min
Mar 7, 4:51 AM CSTSevere Thunderstorm WarningJANForrest54 min
Mar 7, 5:01 AM CSTSevere Thunderstorm WarningJANLawrence, Simpson44 min
Mar 7, 5:20 AM CSTSevere Thunderstorm WarningJANFranklin40 min
Mar 7, 5:28 AM CSTSevere Thunderstorm WarningJANSimpson47 min
Mar 7, 5:51 AM CSTSevere Thunderstorm WarningJANLincoln54 min
Mar 7, 6:11 AM CSTSevere Thunderstorm WarningJANHinds49 min
Mar 7, 6:28 AM CSTSevere Thunderstorm WarningJANWarren47 min
Mar 7, 6:43 AM CSTSevere Thunderstorm WarningJANMadison, Rankin47 min
Mar 7, 7:02 AM CSTSevere Thunderstorm WarningJANYazoo43 min
Mar 7, 7:23 AM CSTSevere Thunderstorm WarningJANIssaquena52 min
Mar 7, 7:51 AM CSTSevere Thunderstorm WarningJANSharkey24 min
Mar 7, 10:43 AM CSTSevere Thunderstorm WarningJANAdams47 min
Mar 7, 11:20 AM CSTSevere Thunderstorm WarningJANFranklin25 min
Mar 7, 12:35 PM CSTSevere Thunderstorm WarningJANLincoln40 min
Mar 7, 12:40 PM CSTSevere Thunderstorm WarningJANClaiborne, Jefferson50 min
Mar 7, 12:49 PM CSTTornado WarningJANJefferson41 min
Mar 7, 1:04 PM CSTSevere Thunderstorm WarningJANFranklin26 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1998Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.