Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 111, NWS New Orleans, LA

March 7, 1998Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Mar 7, 1998, 9:50 PM CST for Harrison County, Jackson County, Mississippi. It was in force for 60 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 7, 1998, 9:50 PM CST (03:50 UTC)
Expired
Mar 7, 1998, 10:50 PM CST
In force
60 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Harrison County, MS, Jackson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.8 hours before the alert went out and 84 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, Slidell Radar S, LA at 00:00Z on 1998-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 1998-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 530 square meters per square second.1939587897Sfc1 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
65 J/kg
Mixed-layer CIN
-254 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
530 m²/s²
0-3 km storm-relative helicity
619 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3

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 New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 6:04 PM CSTSevere Thunderstorm WarningLIXLafourche, Saint Charles61 min
Mar 7, 6:07 PM CSTSevere Thunderstorm WarningLIXAscension, Assumption, Saint James48 min
Mar 7, 6:58 PM CSTSevere Thunderstorm WarningLIXSaint Tammany47 min
Mar 7, 7:06 PM CSTSevere Thunderstorm WarningLIXSaint James, Saint John the Baptist49 min
Mar 7, 7:52 PM CSTSevere Thunderstorm WarningLIXSaint James, Saint John the Baptist63 min
Mar 7, 7:52 PM CSTSevere Thunderstorm WarningLIXSaint Charles63 min
Mar 7, 8:20 PM CSTSevere Thunderstorm WarningLIXOrleans60 min
Mar 7, 9:03 PM CSTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa52 min
Mar 7, 8:51 PM CSTSevere Thunderstorm WarningLIXHancock, Harrison59 min
Mar 7, 9:38 PM CSTFlash Flood WarningLIXHancock, Harrison117 min
Mar 7, 11:13 PM CSTFlash Flood WarningLIXJackson117 min
Mar 7, 11:31 PM CSTFlash Flood WarningLIXHancock, Harrison119 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.