Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 500, NWS Jackson, MS

July 12, 1998Rankin County, Scott County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 12, 1998, 4:46 PM CDT for Rankin County, Scott 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
Jul 12, 1998, 4:46 PM CDT (21:46 UTC)
Expired
Jul 12, 1998, 5:35 PM CDT
In force
49 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Rankin County, MS, Scott County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 32 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 1998-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 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 1998-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
173 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
99 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 11, 7:28 PM CDTSevere Thunderstorm WarningJANWashington32 min
Jul 11, 7:46 PM CDTSevere Thunderstorm WarningJANIssaquena34 min
Jul 12, 4:08 PM CDTSevere Thunderstorm WarningJANWarren47 min
Jul 12, 4:35 PM CDTSevere Thunderstorm WarningJANHinds35 min
Jul 12, 5:26 PM CDTSevere Thunderstorm WarningJANSmith49 min
Jul 12, 5:35 PM CDTSevere Thunderstorm WarningJANHinds35 min
Jul 12, 6:05 PM CDTSevere Thunderstorm WarningJANHinds35 min
Jul 12, 6:26 PM CDTFlash Flood WarningJANHinds2 hr
Jul 11, 8:07 PM CDTSevere Thunderstorm WarningJANEast Carroll33 min
Jul 11, 8:15 PM CDTSevere Thunderstorm WarningJANMorehouse50 min
Jul 12, 3:02 PM CDTSevere Thunderstorm WarningJANFranklin48 min
Jul 12, 4:02 PM CDTSevere Thunderstorm WarningJANTensas33 min
Jul 12, 4:49 PM CDTSevere Thunderstorm WarningJANFranklin, Richland36 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.