Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 67, NWS Jackson, MS

March 5, 1998Copiah County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 5, 1998, 1:56 PM CST for Copiah County, Mississippi. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 5, 1998, 1:56 PM CST (19:56 UTC)
Expired
Mar 5, 1998, 2:45 PM CST
In force
49 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Copiah County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.9 hours before the alert went out and 61 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 12:00Z on 1998-03-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 191 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 12:00Z on 1998-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 327 square meters per square second.193958Sfc1 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
191 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
327 m²/s²
0-3 km storm-relative helicity
390 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

123 
WUUS1 KJAN 051957 RRA
SVRJAN
MSC029-052045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
156 PM CST THU MAR 5 1998
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MISSISSIPPI
 
   ...COPIAH COUNTY
 
AT 155 PM DOPPLER RADAR SHOWED A DEVELOPING SEVERE THUNDERSTORM JUST
WEST OF HAZLEHURST MOVING EAST AT 25 MPH. THIS STORM WILL CROSS
INTERSTATE 55 JUST NORTH OF HAZLEHURST SHORTLY AFTER 200 PM AND MAY
PRODUCE LARGE HAIL.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM
WINDOWS.  DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
<
 
76

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, 10:00 AM CST, 3 hours 56 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-060400-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CST THU MAR 5 1998

A WARM FRONT EXTENDED FROM SOUTH ARKANSAS ACROSS NORTH MISSISSIPPI NEAR
COLUMBUS THIS MORNING. THE FRONT IS ASSOCIATED WITH A LINE OF
THUNDERSTORMS THAT WILL PRODUCE AREAS OF SMALL HAIL. THE WARM FRONT
WILL SLOW BY NOON AND BECOME NEARLY STATIONARY. THE AIR MASS OVER THE
SOUTH HALF OF THE STATE WILL BE HUMID AND UNSTABLE AS SOUTHERLY FLOW
SOUTH OF THE FRONT FORCES GULF MOISTURE INLAND.

THE POTENTIAL EXISTS FOR A FEW STORMS TO BECOME SEVERE...MAINLY OVER
NORTHEAST LOIUSIANA AND SOUTH MISSISSIPPI THIS AFTERNOON AND TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS MAY BE NECESSARY THIS EVENING AND EARLY TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR INTERNET SITE ON THE WORLD WIDE
WEB AT:   HTTP://WWW.JANNWS.STATE.MS.US   (IN SMALL CASE LETTERS).
Special weather statement, Mar 5, 10:00 AM CST, 3 hours 56 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-060400-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CST THU MAR 5 1998

A WARM FRONT EXTENDED FROM SOUTH ARKANSAS ACROSS NORTH MISSISSIPPI NEAR
COLUMBUS THIS MORNING. THE FRONT IS ASSOCIATED WITH A LINE OF
THUNDERSTORMS THAT WILL PRODUCE AREAS OF SMALL HAIL. THE WARM FRONT
WILL SLOW BY NOON AND BECOME NEARLY STATIONARY. THE AIR MASS OVER THE
SOUTH HALF OF THE STATE WILL BE HUMID AND UNSTABLE AS SOUTHERLY FLOW
SOUTH OF THE FRONT FORCES GULF MOISTURE INLAND.

THE POTENTIAL EXISTS FOR A FEW STORMS TO BECOME SEVERE...MAINLY OVER
NORTHEAST LOIUSIANA AND SOUTH MISSISSIPPI THIS AFTERNOON AND TONIGHT.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND PUBLIC SAFETY
OFFICIALS MAY BE NECESSARY THIS EVENING AND EARLY TONIGHT.

FOR MORE INFORMATION PLEASE VISIT OUR INTERNET SITE ON THE WORLD WIDE
WEB AT:   HTTP://WWW.JANNWS.STATE.MS.US   (IN SMALL CASE LETTERS).

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 4:31 PM CSTSevere Thunderstorm WarningJANJefferson Davis44 min
Mar 5, 5:16 PM CSTSevere Thunderstorm WarningJANJefferson Davis29 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; the sounding from the Mesonet's radiosonde archive.