Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 485, NWS Jackson, MS

July 11, 1998Hinds County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 11, 1998, 4:45 PM CDT for Hinds County, Mississippi. It was in force for 35 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
Jul 11, 1998, 4:45 PM CDT (21:45 UTC)
Expired
Jul 11, 1998, 5:20 PM CDT
In force
35 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Hinds County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 35 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 1998-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 565 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 1998-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 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
565 J/kg
Mixed-layer CIN
-251 J/kg
Mixed-layer LCL
1344 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:48 PM CDTSevere Thunderstorm WarningJANMadison, Rankin32 min
Jul 10, 7:53 PM CDTSevere Thunderstorm WarningJANSharkey32 min
Jul 10, 10:10 PM CDTSevere Thunderstorm WarningJANLincoln50 min
Jul 11, 2:18 PM CDTSevere Thunderstorm WarningJANMadison32 min
Jul 11, 2:47 PM CDTSevere Thunderstorm WarningJANLeake33 min
Jul 11, 3:37 PM CDTSevere Thunderstorm WarningJANSimpson33 min
Jul 11, 3:56 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis34 min
Jul 11, 4:02 PM CDTSevere Thunderstorm WarningJANWarren33 min
Jul 11, 4:27 PM CDTSevere Thunderstorm WarningJANJasper33 min
Jul 11, 5:12 PM CDTSevere Thunderstorm WarningJANCopiah48 min
Jul 11, 6:29 PM CDTSevere Thunderstorm WarningJANCopiah, Jefferson, Lincoln36 min
Jul 11, 6:53 PM CDTSevere Thunderstorm WarningJANWashington32 min
Jul 11, 6:57 PM CDTSevere Thunderstorm WarningJANFranklin33 min
Jul 11, 4:36 PM CDTSevere Thunderstorm WarningJANMadison34 min
Jul 11, 5:48 PM CDTSevere Thunderstorm WarningJANTensas32 min
Jul 11, 5:45 PM CDTSevere Thunderstorm WarningJANAshley50 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.