Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 461, NWS Jackson, MS

July 9, 1998Leake County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 9, 1998, 7:09 PM CDT for Leake County, Mississippi. It was in force for 36 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
Jul 9, 1998, 7:09 PM CDT (00:09 UTC)
Expired
Jul 9, 1998, 7:45 PM CDT
In force
36 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Leake County, MS

What was reported inside it

TimeReportWhereRemark
Jul 9, 7:20 PM CDTThunderstorm WindCarthage, MSA few trees and large limbs 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 nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 71 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 1998-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3458 joules per kilogram.LCLEL10008507005003002001001 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 1998-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 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
3458 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1369 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

584 
WUUS1 KJAN 100008 RRA
SVRJAN
MSC079-100045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
709 PM CDT THU JUL 9 1998

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEAKE COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 745 PM CDT

* AT 708 PM CDT... RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
  13 MILES NORTH OF CARTHAGE OR 11 MILES NORTH OF REDWATER MOVING
  SOUTH AT 20 MPH.

* THIS STORM WILL AFFECT CARTHAGE BY 735 PM.

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

65

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:19 PM CDTSevere Thunderstorm WarningJANJasper31 min
Jul 9, 7:28 PM CDTSevere Thunderstorm WarningJANHolmes32 min
Jul 9, 8:01 PM CDTSevere Thunderstorm WarningJANMadison, Yazoo49 min
Jul 9, 9:23 PM CDTSevere Thunderstorm WarningJANHinds, Rankin32 min
Jul 9, 9:59 PM CDTSevere Thunderstorm WarningJANSimpson46 min
Jul 10, 5:22 PM CDTSevere Thunderstorm WarningJANSimpson33 min
Jul 10, 5:25 PM CDTSevere Thunderstorm WarningJANForrest50 min
Jul 10, 5:46 PM CDTSevere Thunderstorm WarningJANScott34 min
Jul 10, 5:51 PM CDTSevere Thunderstorm WarningJANLeake34 min
Jul 10, 5:54 PM CDTSevere Thunderstorm WarningJANBolivar36 min
Jul 10, 6:00 PM CDTSevere Thunderstorm WarningJANSimpson45 min
Jul 10, 6:13 PM CDTSevere Thunderstorm WarningJANCarroll, Leflore32 min
Jul 10, 6:31 PM CDTSevere Thunderstorm WarningJANSmith34 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.