Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 74, NWS Jackson, MS

March 5, 1998Claiborne County, Jefferson County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 5, 1998, 10:07 PM CST for Claiborne County, Jefferson County, Mississippi. It was in force for 68 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
Mar 5, 1998, 10:07 PM CST (04:07 UTC)
Expired
Mar 5, 1998, 11:15 PM CST
In force
68 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Claiborne County, MS, Jefferson County, MS

What was reported inside it

TimeReportWhereRemark
Mar 5, 10:40 PM CSTHail 1.75Lorman, MS
Mar 5, 11:10 PM CSTHail 0.75Fayette, 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, 4.1 hours before the alert went out and 99 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 1998-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 776 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, Jackson, MS at 00:00Z on 1998-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939587897117Sfc1 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
776 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
661 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

747 
WUUS1 KJAN 060408 RRA
SVRJAN
MSC063-021-060515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1007 PM CST THU MAR 5 1998
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST MISSISSIPPI
 
   ...JEFFERSON COUNTY
 
IN WEST CENTRAL MISSISSIPPI
 
   ...CLAIBORNE COUNTY
 
AT 1007 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 13 MILES WEST
OF PORT GIBSON...MOVING SOUTHEAST AT 30 MPH. THIS STORM WILL MOVE ACROSS
ALCORN STATE UNIVERSITY AND APPROACH LORMAN BY 1035 PM.
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
<
 
74

What forecasters said that day

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

In the hours before

Special weather statement, Mar 5, 7:13 PM CST, 2 hours 54 minutes before
ARZ074-075-060215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
713 PM CST THU MAR 5 1998

...SEVERE THUNDERSTORM WATCH NO. 77 EXPIRED FOR ASHLEY AND CHICOT
COUNTIES...
...SEVERE THUNDERSTORM WATCH NO. 78 IN EFFECT FOR NORTHEAST LOUISIANA UNTIL
10 PM...

THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR ASHLEY AND CHICOT COUNTIES
HAS EXPIRED. SEVERE THUNDERSTORM WATCH NO. 78 REMAINS IN EFFECT FOR
NORTHEAST LOUISIANA PARISHES THROUGH 10 PM.
Special weather statement, Mar 5, 7:13 PM CST, 2 hours 54 minutes before
ARZ074-075-060215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
713 PM CST THU MAR 5 1998

...SEVERE THUNDERSTORM WATCH NO. 77 EXPIRED FOR ASHLEY AND CHICOT
COUNTIES...
...SEVERE THUNDERSTORM WATCH NO. 78 IN EFFECT FOR NORTHEAST LOUISIANA UNTIL
10 PM...

THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR ASHLEY AND CHICOT COUNTIES
HAS EXPIRED. SEVERE THUNDERSTORM WATCH NO. 78 REMAINS IN EFFECT FOR
NORTHEAST LOUISIANA PARISHES THROUGH 10 PM.
Local storm report, Mar 5, 7:47 PM CST, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
747 PM CST THU MAR 05 1998

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

0735 PM    ELWOOD                    MS   1 INCH HAIL
03/05/98   CLARKE                         REPORTED BY CLARKE CO.
                                          S.O.

0741 PM    QUITMAN                   MS   1.75 INCH HAIL
03/05/98   CLARKE                         REPORTED BY CLARKE CO.
                                          S.O.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 6:43 PM CSTSevere Thunderstorm WarningJANJasper47 min
Mar 5, 7:02 PM CSTSevere Thunderstorm WarningJANClarke58 min
Mar 5, 10:04 PM CSTSevere Thunderstorm WarningJANGrenada56 min
Mar 5, 11:13 PM CSTSevere Thunderstorm WarningJANJefferson47 min
Mar 6, 12:44 PM CSTFlash Flood WarningJANCarroll2 hr
Mar 6, 1:08 PM CSTSevere Thunderstorm WarningJANGrenada37 min
Mar 6, 5:49 PM CSTSevere Thunderstorm WarningJANClarke26 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.