Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 150, NWS Jackson, MS

April 8, 1998Winston County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 8, 1998, 8:16 PM CDT for Winston County, Mississippi. It was in force for 44 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
Apr 8, 1998, 8:16 PM CDT (01:16 UTC)
Expired
Apr 8, 1998, 9:00 PM CDT
In force
44 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Winston County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 8, 7:30 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.3 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 1998-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2202 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 1998-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
2202 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1092 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
1.4
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

191 
WUUS1 KJAN 090118
SVRJAN
MSC159-090200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING     ...CORRECTED FOR TYPO...
NATIONAL WEATHER SERVICE JACKSON MS
816 PM CDT WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL MISSISSIPPI

   ...WINSTON COUNTY

AT 813 PM...RADAR INDICATED A SEVERE THUNDERSTORM CROSSING HIGHWAY 19
AND HIGHWAY 25. THE STORM WAS MOVING NORTHEAST ABOUT 40 MPH AND WILL
APPROACH NOXAPATER BY 830 PM.

A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<

68

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 7:09 PM CDTTornado WarningJANHinds, Rankin51 min
Apr 8, 7:24 PM CDTSevere Thunderstorm WarningJANLeake66 min
Apr 8, 7:31 PM CDTSevere Thunderstorm WarningJANCopiah44 min
Apr 8, 7:45 PM CDTSevere Thunderstorm WarningJANOktibbeha45 min
Apr 8, 7:49 PM CDTTornado WarningJANScott41 min
Apr 8, 8:00 PM CDTSevere Thunderstorm WarningJANRankin45 min
Apr 8, 8:44 PM CDTSevere Thunderstorm WarningJANNeshoba46 min
Apr 8, 8:51 PM CDTSevere Thunderstorm WarningJANNewton39 min
Apr 8, 9:02 PM CDTSevere Thunderstorm WarningJANKemper43 min
Apr 8, 9:27 PM CDTSevere Thunderstorm WarningJANLauderdale48 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.